{"title":"Valves for the Chemical Industry | PFA, PTFE, Stainless Steel, and Carbon Steel","description":"\u003ch2\u003eValves for the Chemical and Petrochemical Industry — Correct Selection for Each Fluid, Temperature, and Installation Area\u003c\/h2\u003e\n\n\u003cp\u003e\n  Valve selection in the chemical industry does not allow for generalities. Concentrated sulfuric acid at 80°C will destroy a stainless steel valve in weeks that would last decades in a water line. An aromatic hydrocarbon at high pressure requires an API 6D design with a Fire Safe seal that no standard process valve can provide. An area classified as Hazardous Area Zone 1 requires actuators with ATEX Ex certification that are not interchangeable with standard actuators. At Cematic, we understand these differences and offer the complete range of valves for the chemical industry in Mexico, with specialized technical advice to identify the correct solution for each point in your process.\n\u003c\/p\u003e\n\n\u003ch3\u003eThe four technical challenges of the chemical industry — and how to solve them\u003c\/h3\u003e\n\n\u003ch4\u003eChallenge 1: Chemical Corrosion\u003c\/h4\u003e\n\u003cp\u003e\n  Corrosion is the number one cause of premature valve failure in chemical plants. The correct material for the valve body depends on the specific fluid, its concentration, temperature, and flow rate:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eConcentrated mineral acids (H₂SO₄, HCl, HNO₃, HF):\u003c\/strong\u003e Stainless steel 316 is not sufficient for high-concentration acids. The solution is an \u003cstrong\u003eanti-corrosive valve with a PFA (Perfluoroalkoxy) inner lining\u003c\/strong\u003e — a fluoropolymer with virtually universal chemical resistance that acts as an inert barrier between the fluid and the metal body. For hydrofluoric acid (HF) and fuming nitric acid, PFA is the only reliable option.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eStrong alkalis (NaOH, KOH) at high concentration:\u003c\/strong\u003e Stainless steel 316 resists caustic soda at moderate concentrations and temperatures, but at concentrations above 50% or elevated temperatures, intergranular corrosion can occur. The anti-corrosive valve with PTFE or PFA lining is the safe alternative for any concentration and temperature within the fluoropolymer's range.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eOrganic solvents (toluene, xylene, acetone, DMF, chlorinated solvents):\u003c\/strong\u003e Stainless steel 316 resists most organic solvents well. Seats should be specified as \u003cstrong\u003ePTFE or Viton (FKM)\u003c\/strong\u003e — EPDM and NBR are incompatible with organic solvents and degrade rapidly.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eStrong oxidizers (chlorine gas, concentrated H₂O₂, peroxides):\u003c\/strong\u003e PFA lining is mandatory. PTFE can be attacked by certain very aggressive oxidizers (elemental fluorine, perchloric acid) — consult specific compatibility table.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eModerately corrosive fluids (diluted acids, saline solutions, process water):\u003c\/strong\u003e Stainless steel 316 with PTFE seats is sufficient and significantly more economical than PFA lining. The key is not to over-engineer — a PFA anti-corrosive valve in a diluted acetic acid line is an unnecessary expense.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eChallenge 2: Elevated Temperature and Pressure\u003c\/h4\u003e\n\u003cp\u003e\n  Chemical processes frequently operate at temperatures and pressures outside the range of standard process valves:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eHigh temperature (150 °C to 400 °C+):\u003c\/strong\u003e PTFE and EPDM seats fail above their thermal limits. High-temperature valves require \u003cstrong\u003emetal seats\u003c\/strong\u003e (SS316 with Stellite or tungsten carbide coating) and expanded graphite (Grafoil) stem packing that maintains sealing at temperatures above 300 °C. The body material must also be specified for high temperature: carbon steel WCB up to 425 °C, chrome-molybdenum (WC6, WC9) up to 540 °C, austenitic stainless steel for cryogenic service down to -196 °C.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eHigh pressure (more than ANSI 150):\u003c\/strong\u003e Standard process valves are designed for ANSI 150 (PN20, up to 19.6 bar at ambient temperature). For higher pressures, valves in ANSI Class 300 (up to 50 bar), ANSI Class 600 (up to 100 bar) or higher are required, with thicker bodies and greater mechanical strength certified under ASME B16.34. \u003cstrong\u003eTrunnion ball valves\u003c\/strong\u003e are the standard solution for high-pressure isolation in large diameters.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eVacuum:\u003c\/strong\u003e Distillation, evaporation, and lyophilization processes operate below atmospheric pressure. Valves must be designed to withstand external pressure without deformation — a condition that not all standard designs meet. Specify \"vacuum service\" explicitly when quoting.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eChallenge 3: Safety in Classified Zones (ATEX)\u003c\/h4\u003e\n\u003cp\u003e\n  Chemical plants that handle solvents, hydrocarbons, flammable gases, or combustible dusts have areas classified as Hazardous Zones where an electrical spark can initiate an explosion. In these zones, all electrical equipment — including valve actuators — must be certified under the \u003cstrong\u003eATEX directive (94\/9\/EC in Europe, equivalent NEC in the USA)\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 0 \/ Zone 20:\u003c\/strong\u003e Explosive atmosphere continuously present. Requires Category 1G (gases) or 1D (dusts) equipment — extremely restrictive.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 1 \/ Zone 21:\u003c\/strong\u003e Explosive atmosphere likely in normal operation. Requires Category 2G or 2D equipment. Most ATEX actuators available on the market are Category 2G — Ex d (explosion-proof enclosure) or Ex ia (intrinsic safety).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 2 \/ Zone 22:\u003c\/strong\u003e Explosive atmosphere unlikely, only under abnormal conditions. Requires Category 3G or 3D equipment — the least restrictive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n  The pneumatic actuator is intrinsically safer in ATEX zones than the electric one: by not having electrical components in the actuator body (only in the control solenoid, which can be low-cost ATEX), it is the solution with the least complexity and total cost for automation in classified zones. Cematic supplies ATEX Ex II 2G solenoids certified for Zone 1 with direct mounting on the NAMUR port of the standard actuator.\n\u003c\/p\u003e\n\n\u003ch4\u003eChallenge 4: Process Safety — Fire Safe and Double Block and Bleed\u003c\/h4\u003e\n\u003cp\u003e\n  In lines with flammable, toxic, or high-pressure fluids, international standards and industrial insurance regulations require additional safety features that go beyond a standard process valve:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eFire Safe Design (API 607 \/ BS 6755):\u003c\/strong\u003e In case of fire, the polymeric gaskets and seats of the valve can be destroyed. Fire Safe design incorporates secondary metal seals that maintain the tightness of the valve even when the primary PTFE or EPDM seals have been destroyed by fire, preventing the valve from becoming an additional source of fire fuel.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eDouble Block and Bleed — DBB (API 6D):\u003c\/strong\u003e Independent sealing on both seats plus a bleed port in the central cavity. Allows complete isolation of a line section and verification of isolation by bleeding the cavity — the safety standard for intervention in high-pressure or hazardous fluid lines.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eAnti-static:\u003c\/strong\u003e Electrical continuity guaranteed between ball, stem, and body to dissipate electrostatic charges generated by the flow of flammable fluids — required in hydrocarbon and flammable solvent lines.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypes of valves for the chemical industry by application\u003c\/h3\u003e\n\n\u003ch4\u003eFor Shut-off and ON\/OFF Isolation\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePFA anti-corrosive ball valve (DN15–DN150):\u003c\/strong\u003e For acids, strong alkalis, and aggressive solvents in small and medium diameters. Class VI tight shut-off, continuous PFA lining without gaskets. \u003ca href=\"\/en\/collections\/valvulas-anticorrosivas-para-la-industria-quimica\"\u003eView anti-corrosive collection →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSS316 NPT threaded ball valve (DN15–DN100):\u003c\/strong\u003e For moderately aggressive fluids, organic solvents, and process water. The most economical solution for general chemistry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSS316 flanged ball valve ANSI 150\/300 (DN25–DN200):\u003c\/strong\u003e For main process lines with higher pressure or diameter.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrunnion ball valve WCB or SS316 (DN50–DN600, ANSI 150–1500):\u003c\/strong\u003e For high pressure and large diameters. DBB and Fire Safe available. \u003ca href=\"\/en\/collections\/valvulas-bola-trunnion\"\u003eView trunnion collection →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGate valve WCB or SS316 flanged (DN50–DN600):\u003c\/strong\u003e For isolation of plant sections with low operating frequency and minimal pressure drop required. \u003ca href=\"\/en\/collections\/valvulas-de-compuerta\"\u003eView gate valve collection →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePFA lined anti-corrosive butterfly valve (DN50–DN400):\u003c\/strong\u003e For moderately corrosive fluids in large diameters where an anti-corrosive ball valve would be excessively expensive.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKnife gate valve (DN50–DN600):\u003c\/strong\u003e For fluids with suspended solids, process slurries, and abrasive mixtures where other valves would clog. \u003ca href=\"\/en\/collections\/valvulas-cuchilla\"\u003eView knife gate valve collection →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFor Flow Control and Regulation\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eV-port segmented ball valve — SS316 (DN50–DN200):\u003c\/strong\u003e For modulating control of fluids with solids, slurries, pulps, and viscous mixtures. Equal percentage characteristic, rangeability 200:1, metal seat. \u003ca href=\"\/en\/products\/valvula-de-bola-segmentada-en-acero-inoxidable-316-ansi-150\"\u003eView product →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-performance butterfly valve with positioner:\u003c\/strong\u003e For proportional control in large diameters at a lower cost than an equivalent globe valve.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-corrosive diaphragm valve:\u003c\/strong\u003e For aggressive fluids with particles where proportional control is required without contact between the mechanism and the fluid.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFor Reverse Flow Prevention\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble plate check valve SS316 or WCB:\u003c\/strong\u003e Protection of pumps and compressors in chemical process lines. No external moving parts, smooth closing without water hammer. \u003ca href=\"\/en\/collections\/valvulas-check\"\u003eView check valve collection →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePFA anti-corrosive check valve:\u003c\/strong\u003e For acid and alkali lines where a conventional check valve would corrode in weeks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAutomation in the chemical industry — specific requirements\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003ePneumatic actuator + ATEX solenoid:\u003c\/strong\u003e The standard configuration for automation in classified zones Zone 1 and Zone 2. The pneumatic actuator itself does not require ATEX certification (it has no electricity in its body). Only the control solenoid needs to be Ex certified. Result: safe automation at a significantly lower cost than a complete ATEX electric actuator.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eESD (Emergency Shutdown) Systems:\u003c\/strong\u003e Isolation valves that close automatically upon an emergency signal from the gas, pressure, or temperature detection system. They require single-acting actuators with fail-safe (normally closed) and guaranteed response times. The package includes a high-flow solenoid for fast closing and periodic partial stroke testing (PST) to verify functionality without stopping the process.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eHART digital positioner for control loops:\u003c\/strong\u003e For control valves in PID temperature, pressure, flow, and level loops. The digital positioner provides real-time diagnostics of the valve status — critical in chemical plants where corrective maintenance is costly and potentially dangerous. \u003ca href=\"\/en\/collections\/posicionador-digital-valvulas\"\u003eView positioners →\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eActuator materials resistant to aggressive vapors:\u003c\/strong\u003e In environments with acidic or alkaline vapors, standard aluminum actuators can corrode on their exterior. Specify actuators with stainless steel bodies or with epoxy paint resistant to chemical vapors for installations in aggressive atmospheres without ATEX classification.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemical industry sectors we serve\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduction of acids and alkalis:\u003c\/strong\u003e Sulfuric, hydrochloric, nitric, and phosphoric acid plants; caustic soda and ammonia plants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePetrochemical and refining:\u003c\/strong\u003e Catalytic reforming, alkylation, polymer production (polyethylene, polypropylene, PVC), aromatic processing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolvent production:\u003c\/strong\u003e Acetone, MEK, alcohols, esters, chlorinated solvents and their recovery plants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFertilizers and agrochemicals:\u003c\/strong\u003e Phosphoric acid, superphosphates, anhydrous ammonia, urea, pesticides, and herbicides\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePaints, resins, and adhesives:\u003c\/strong\u003e Production of alkyd, epoxy, polyurethane resins, and aqueous dispersions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial effluent treatment:\u003c\/strong\u003e Neutralization of acidic and alkaline effluents, coagulant dosing, and gas scrubbing systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial gases:\u003c\/strong\u003e Nitrogen, oxygen, CO₂, and hydrogen plants where total tightness is mandatory\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFine and specialty chemicals:\u003c\/strong\u003e Synthesis of active pharmaceutical ingredients (APIs), dyes, fragrances, and industrial additives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eQuick selection guide by fluid\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFluid\u003c\/th\u003e\n      \u003cth\u003eBody Material\u003c\/th\u003e\n      \u003cth\u003eSeat \/ Seal\u003c\/th\u003e\n      \u003cth\u003eRecommended Valve Type\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eH₂SO₄ \u0026gt; 70%\u003c\/td\u003e\n      \u003ctd\u003ePFA Lining\u003c\/td\u003e\n      \u003ctd\u003eVirgin PTFE\u003c\/td\u003e\n      \u003ctd\u003ePFA Anti-Corrosive Ball Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHCl any concentration\u003c\/td\u003e\n      \u003ctd\u003ePFA Lining\u003c\/td\u003e\n      \u003ctd\u003eVirgin PTFE\u003c\/td\u003e\n      \u003ctd\u003ePFA Anti-Corrosive Ball or Butterfly Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNaOH \u0026lt; 50%, \u0026lt; 80 °C\u003c\/td\u003e\n      \u003ctd\u003eStainless Steel 316\u003c\/td\u003e\n      \u003ctd\u003eEPDM or PTFE\u003c\/td\u003e\n      \u003ctd\u003eSS316 Ball Valve or SS316 Butterfly Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNaOH \u0026gt; 50% or \u0026gt; 80 °C\u003c\/td\u003e\n      \u003ctd\u003ePFA or PTFE Lining\u003c\/td\u003e\n      \u003ctd\u003eVirgin PTFE\u003c\/td\u003e\n      \u003ctd\u003ePFA Anti-Corrosive Ball Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eToluene \/ Xylene\u003c\/td\u003e\n      \u003ctd\u003eStainless Steel 316\u003c\/td\u003e\n      \u003ctd\u003ePTFE or Viton (FKM)\u003c\/td\u003e\n      \u003ctd\u003eSS316 Ball Valve with PTFE Seat\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHypochlorite NaClO\u003c\/td\u003e\n      \u003ctd\u003ePVC or PFA Lining\u003c\/td\u003e\n      \u003ctd\u003eEPDM or PTFE\u003c\/td\u003e\n      \u003ctd\u003ePVC Ball Valve or Anti-Corrosive Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eH₂O₂ \u0026gt; 30%\u003c\/td\u003e\n      \u003ctd\u003ePFA Lining\u003c\/td\u003e\n      \u003ctd\u003eVirgin PTFE\u003c\/td\u003e\n      \u003ctd\u003ePFA Anti-Corrosive Ball Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMineral Oil \/ Hydrocarbon\u003c\/td\u003e\n      \u003ctd\u003eCarbon Steel WCB\u003c\/td\u003e\n      \u003ctd\u003ePTFE or NBR\u003c\/td\u003e\n      \u003ctd\u003eWCB Ball Valve or WCB Gate Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eChlorine Gas (Cl₂)\u003c\/td\u003e\n      \u003ctd\u003ePFA Lining\u003c\/td\u003e\n      \u003ctd\u003eVirgin PTFE\u003c\/td\u003e\n      \u003ctd\u003ePFA Anti-Corrosive Ball Valve — Dry\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSteam \u0026gt; 150 °C\u003c\/td\u003e\n      \u003ctd\u003eCarbon Steel WCB or SS316\u003c\/td\u003e\n      \u003ctd\u003eMetal + Graphite\u003c\/td\u003e\n      \u003ctd\u003eWCB Gate Valve or Metal Globe Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAbrasive Slurry with Solids\u003c\/td\u003e\n      \u003ctd\u003eSS316 with Liner or Iron\u003c\/td\u003e\n      \u003ctd\u003ePolyurethane or Metal\u003c\/td\u003e\n      \u003ctd\u003eKnife Gate Valve or Segmented V-Ball Valve\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy choose Cematic for your chemical industry valves?\u003c\/h3\u003e\n\u003cp\u003e\n  We have proven experience supplying valves to chemical, petrochemical, and effluent treatment plants in Mexico. We perform chemical compatibility verification free of charge with the specific data of your fluid, concentration, temperature, and pressure. We supply with material certificates (MTR), API certificates, and ATEX documentation when applicable. We advise on zone classification and Ex actuator selection. We issue a formal technical quote with detailed specifications on the same business day. Shipping throughout the republic. Contact us via WhatsApp or at ventas@cematic.com.\n\u003c\/p\u003e","products":[{"product_id":"valvula-de-bola-clamp-higienica","title":"Clamp Ball Valve | Hygienic | Stainless steel","description":"\u003ch2\u003eSanitary Clamp Ball Valve in 316L Stainless Steel — PTFE \/ TFM1600, ISO5211\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003esanitary clamp ball valve\u003c\/strong\u003e is the standard fluid control component in sanitary industries that require full bore, tight shut-off, and quick disassembly. It is made of 316L or 304 stainless steel, offering superior corrosion resistance and long service life.\u003c\/p\u003e\n\u003cp\u003eAdditionally, its clamp-type connection allows for installation and disassembly without welding or threading, making maintenance and cleaning much simpler.\u003c\/p\u003e\n\u003cp\u003eThe ball mechanism operates with a 90° turn. Its full-bore design also ensures unrestricted flow without significant pressure drops. Consequently, it is the right choice for processes requiring quick opening and closing with minimal head loss.\u003c\/p\u003e\n\u003cp\u003eIt is also available with a manual lever, pneumatic actuator, or electric actuator, adapting to manual or fully automated processes.\u003c\/p\u003e\n\u003ch3\u003eOperating Principle — Sanitary Clamp Ball Valve\u003c\/h3\u003e\n\u003cp\u003eThe ball rotates 90° between the fully open and fully closed positions. In the open position, the ball's bore aligns with the pipe, allowing fluid to flow without obstruction. In the closed position, however, the ball rotates 90° and completely blocks the fluid passage. This ensures a tight seal that does not depend on differential pressure to seal.\u003c\/p\u003e\n\u003cp\u003eIts smooth interior also prevents residue accumulation between operating cycles. Consequently, it guarantees fluid purity and facilitates CIP cleaning without needing to disassemble the valve in each cycle.\u003c\/p\u003e\n\u003ch3\u003eBody Materials — SS316L or SS304\u003c\/h3\u003e\n\u003cp\u003e316L stainless steel contains molybdenum in its composition, offering greater corrosion resistance in chemical and chloride environments. It is also the preferred material in demanding pharmaceutical and food applications where SS304 may show pitting.\u003c\/p\u003e\n\u003cp\u003e304 stainless steel, on the other hand, is versatile and resistant in moderate conditions. Its smooth surface facilitates cleaning and is therefore suitable for industrial and process applications where chemical aggressiveness is lower. Both options, finally, have an internal finish of Ra ≤ 0.8 µm, which is the surface standard in certified hygienic applications.\u003c\/p\u003e\n\u003ch3\u003eSeat Materials — PTFE or TFM1600\u003c\/h3\u003e\n\u003cp\u003ePTFE Teflon is chemically inert to most fluids. In addition, its low coefficient of friction improves valve performance, making it ideal for environments with aggressive or corrosive fluids.\u003c\/p\u003e\n\u003cp\u003eTFM1600, however, has similar properties to PTFE but with significant improvements. Firstly, it offers greater mechanical and abrasion resistance. It also maintains stable properties at high service temperatures, making it the right choice for processes with frequent thermal cycles.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\n\u003ctd\u003e316L or 304 Stainless Steel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAvailable Seats\u003c\/td\u003e\n\n\u003ctd\u003ePTFE (Teflon) or TFM1600\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eActuator Mounting\u003c\/td\u003e\n\n\u003ctd\u003eISO5211\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking Pressure\u003c\/td\u003e\n\n\u003ctd\u003e1000 psi (≤ 38 °C \/ 100 °F)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e180 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInternal Finish\u003c\/td\u003e\n\n\u003ctd\u003eRa ≤ 0.8 µm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAvailable Diameters\u003c\/td\u003e\n\n\u003ctd\u003e1\/2\", 3\/4\", 1\", 1½\", 2\", 2½\", 3\", 4\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePneumatic Actuator\u003c\/td\u003e\n\n\u003ctd\u003eSingle or Double Acting\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eElectric Actuator\u003c\/td\u003e\n\n\u003ctd\u003eOn-Off or Modulating\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBase SKU\u003c\/td\u003e\n\n\u003ctd\u003ePBC02\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eOperation Options\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003esanitary clamp ball valve\u003c\/strong\u003e is available in three operating modes depending on the required level of automation. The manual lever is the standard option, requiring no electrical or pneumatic power to operate.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003epneumatic actuator\u003c\/strong\u003e, on the other hand, automates opening and closing using compressed air. The \u003cstrong\u003eOn-Off or modulating electric actuator\u003c\/strong\u003e is for processes where proportional position control is necessary.\u003c\/p\u003e\n\u003cp\u003eThis allows the valve to be integrated into control systems with PLCs. All options are also delivered assembled and tested, ready for installation.\u003c\/p\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003esanitary clamp ball valve\u003c\/strong\u003e is compatible with a wide range of fluids in the sanitary and industrial sectors. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePurified Water and Water for Injection\u003c\/strong\u003e — SS316L does not release metal ions into the fluid; therefore, it is the standard material in high-purity pharmaceutical lines.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood Fluids — dairy, juices, beer, vegetable oils\u003c\/strong\u003e — SS316L and PTFE\/TFM1600 seats meet food contact requirements; likewise, the Ra ≤ 0.8 µm finish prevents residue retention.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCIP Agents — caustic soda, nitric acid, peracetic acid\u003c\/strong\u003e — PTFE and TFM1600 are inert to CIP cleaning agents; furthermore, SS316L resists typical concentrations without corrosion.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eChemical and Corrosive Fluids\u003c\/strong\u003e — PTFE is inert to most acids, bases, and solvents; however, for extremely aggressive fluids, verify compatibility with Cematic's technical team.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHydrocarbons and Solvents — petrochemical industry\u003c\/strong\u003e — TFM1600 resists wear from hydrocarbons; in contrast, standard PTFE may deform in high-pressure and temperature cycles.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the Sanitary Clamp Ball Valve\u003c\/h3\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003esanitary clamp ball valve\u003c\/strong\u003e controls the flow of liquids in food and beverage production lines. Its full-bore design prevents residue accumulation, making it the preferred component in plants with food safety certification. Additionally, it resists the acids and alkalis of CIP cleaning agents, ensuring hygiene between production batches.\u003c\/p\u003e\n\u003ch4\u003ePharmaceutical Industry\u003c\/h4\u003e\n\u003cp\u003eIn processes where sterility is essential, SS316L also withstands aggressive cleaning agents without corrosion, thus guaranteeing product integrity in each production cycle. Additionally, the ISO5211 mounting allows for valve automation with pneumatic actuators for integration into pharmaceutical process control systems.\u003c\/p\u003e\n\u003ch4\u003eChemical Industry\u003c\/h4\u003e\n\u003cp\u003eThe PTFE or TFM1600 seat, therefore, resists a wide range of chemicals, acids, and bases. Consequently, it extends the valve's service life in aggressive environments where conventional elastomers would prematurely fail. Furthermore, the ball closure is hermetic from the first operation, which is critical in handling toxic or corrosive fluids.\u003c\/p\u003e\n\u003ch4\u003ePetrochemical Industry\u003c\/h4\u003e\n\u003cp\u003eThis valve also withstands demanding operating conditions in refineries and process plants. The TFM1600, moreover, resists wear caused by hydrocarbons and solvents superior to standard PTFE. Therefore, it is the right choice in petrochemical applications with frequent opening and closing cycles at high pressure.\u003c\/p\u003e\n\u003ch4\u003eIndustrial Processes and Manufacturing\u003c\/h4\u003e\n\u003cp\u003eIn industrial piping systems, this valve regulates flow with mechanical resistance for continuous operation. Its performance is also reliable in continuous production cycles. Its ISO5211 mounting also facilitates automation with pneumatic or electric actuators without replacing the valve. Consequently, it is an investment that protects process continuity against changes in the plant's automation level.\u003c\/p\u003e\n\u003cp\u003eIn summary, Cematic's \u003cstrong\u003esanitary clamp ball valve\u003c\/strong\u003e combines hygiene, durability, and versatility. It is, therefore, the most reliable choice for sanitary and chemically demanding industrial processes.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of sanitary valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-higienicas\"\u003esanitary valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-clamp-acero-inoxidable-316l-asiento-tfm1600-pbc01.pdf?v=1776282786\" title=\"Ficha Técnica Válvula de Bola Clamp Acero Inoxidable 316L Asiento TFM1600\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003eTFM1600 Seat Data Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ca rel=\"noopener\" title=\"Ficha Técnica Válvula de Bola Clamp Acero Inoxidable 316L Asiento PTFE\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-clamp-acero-inoxidable-316l-asiento-de-teflon-pbc02.pdf?v=1776282815\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan\u003ePTFE Seat Data Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ca rel=\"noopener\" title=\"ficha-técnica-de-valvula-de-bola-clamp-acero-inoxidable-304-cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-clamp-acero-inoxidable-304-pbc11.pdf?v=1776282833\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan style=\"color: #b71a1a;\"\u003e\u003cspan\u003eSS304 Data Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\" \/ PTFE \/ SS316L","offer_id":49708529090873,"sku":"PBC0202","price":1174.41,"currency_code":"MXN","in_stock":true},{"title":"1\/2\" \/ TFM1600","offer_id":41298280382644,"sku":"PBC0102","price":2548.29,"currency_code":"MXN","in_stock":false},{"title":"3\/4\" \/ PTFE \/ SS316L","offer_id":49708529123641,"sku":"PBC0204","price":1225.73,"currency_code":"MXN","in_stock":true},{"title":"3\/4\" \/ TFM1600","offer_id":41298268553396,"sku":"PBC0104","price":2817.97,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ PTFE \/ SS316L","offer_id":49708529156409,"sku":"PBC0206","price":2361.65,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ PTFE \/ SS304","offer_id":49708795789625,"sku":"PBC1106","price":3210.17,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ TFM1600 \/ SS316L","offer_id":41298268586164,"sku":"PBC0106","price":3405.02,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\" \/ PTFE \/ SS316L","offer_id":49708529189177,"sku":"PBC0208","price":3893.6,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\" \/ PTFE \/ SS304","offer_id":49708795822393,"sku":"PBC1108","price":5817.3,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\" \/ TFM1600 \/ SS316L","offer_id":41298268618932,"sku":"PBC0108","price":8725.36,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ PTFE \/ SS316L","offer_id":49708529221945,"sku":"PBC0210","price":4979.05,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ PTFE \/ SS304","offer_id":49708795855161,"sku":"PBC1110","price":8412.47,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ TFM1600 \/ SS316L","offer_id":41298268651700,"sku":"PBC0110","price":4079.73,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\" \/ PTFE \/ SS316L","offer_id":49708529287481,"sku":"PBC0212","price":7621.26,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\" \/ TFM1600 \/ SS316L","offer_id":49708529254713,"sku":null,"price":0.0,"currency_code":"MXN","in_stock":false},{"title":"3\" \/ PTFE \/ SS316L","offer_id":49708529320249,"sku":"PBC0214","price":12383.9,"currency_code":"MXN","in_stock":true},{"title":"3\" \/ TFM1600","offer_id":41298280415412,"sku":"PBC0114","price":31773.54,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ PTFE \/ SS316L","offer_id":49708529353017,"sku":"PBC0216","price":18511.7,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ TFM1600","offer_id":41298280448180,"sku":"PBC0116","price":36767.48,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/V_lvula_de_bola_clamp_higi_nica_acero_inoxidable_316L_con_manija.jpg?v=1774378355"},{"product_id":"valvula-mariposa-wafer-anticorrosiva-wcb-disco-ptfe","title":"Wafer Butterfly Valve PTFE Coated Seat and Disc","description":"\u003ch2\u003eAnticorrosive Wafer Butterfly Valve — WCB Body with PTFE Liner and PTFE Coated SS316 Disc\u003c\/h2\u003e\u003cp\u003e  This anticorrosive wafer butterfly valve completely eliminates contact between any metallic surface and the process fluid: the WCB body is protected by a \u003cstrong\u003econtinuous PTFE liner\u003c\/strong\u003e that covers the entire interior and forms the sealing seat, and the SS316 stainless steel disc has a \u003cstrong\u003ePTFE coating over its entire surface\u003c\/strong\u003e. The result is a valve where the corrosive fluid only touches PTFE — in neither the closed nor open position is there contact between the fluid and the metal.\u003c\/p\u003e\u003cp\u003e  This is the version with the highest chemical protection within the WCB anticorrosive butterfly valve family, and the correct choice when the fluid is aggressive enough to attack the SS316 of the disc in continuous service — fluids with high chlorides, moderate oxidizers, or acids in concentrations that would damage the disc's metal over time. For extremely aggressive fluids (HF, concentrated ClO₂, H₂SO₄ \u0026gt;70%), the correct solution is the \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003eanticorrosive ball valve with PFA lining →\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e Carbon steel WCB — mechanical support structure. The metal has no contact with the fluid thanks to the PTFE liner.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eInternal liner:\u003c\/strong\u003e Continuous molded PTFE — completely covers the interior of the body and forms the peripheral sealing seat of the disc\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDisc:\u003c\/strong\u003e SS316 stainless steel with \u003cstrong\u003ePTFE coating over its entire surface\u003c\/strong\u003e — the metal of the disc has no contact with the fluid in any opening position\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eShaft \/ stem:\u003c\/strong\u003e SS316 stainless steel with PTFE seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eMounting type:\u003c\/strong\u003e Wafer — between DIN PN10\/16 or ANSI 150 flanges\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNominal pressure:\u003c\/strong\u003e PN10 \/ PN16\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -20 °C to +150 °C\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eAvailable diameters:\u003c\/strong\u003e DN50 (2\") to DN400 (16\")\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDesign standard:\u003c\/strong\u003e EN 593\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eActuator interface:\u003c\/strong\u003e ISO 5211\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComparison of the WCB anticorrosive butterfly valve family\u003c\/h3\u003e\u003ctable\u003e  \u003cthead\u003e    \u003ctr\u003e      \u003cth\u003eVariant\u003c\/th\u003e      \u003cth\u003eBody\u003c\/th\u003e      \u003cth\u003eDisc\u003c\/th\u003e      \u003cth\u003eProtection\u003c\/th\u003e      \u003cth\u003eBest for\u003c\/th\u003e    \u003c\/tr\u003e  \u003c\/thead\u003e  \u003ctbody\u003e    \u003ctr\u003e      \u003ctd\u003eWCB + PTFE liner, SS316 disc\u003c\/td\u003e      \u003ctd\u003eWCB + PTFE liner\u003c\/td\u003e      \u003ctd\u003eSS316 uncoated\u003c\/td\u003e      \u003ctd\u003eProtected body — exposed disc\u003c\/td\u003e      \u003ctd\u003eDiluted acids and alkalis where the SS316 of the disc is sufficient\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e\u003cstrong\u003eWCB + PTFE liner, PTFE coated disc ← This product\u003c\/strong\u003e\u003c\/td\u003e      \u003ctd\u003eWCB + PTFE liner\u003c\/td\u003e      \u003ctd\u003e\u003cstrong\u003ePTFE coated SS316\u003c\/strong\u003e\u003c\/td\u003e      \u003ctd\u003e\u003cstrong\u003eZero metal-fluid contact\u003c\/strong\u003e\u003c\/td\u003e      \u003ctd\u003e\u003cstrong\u003eFluids that attack SS316 disc — high chlorides, oxidizers, zero metallic contamination\u003c\/strong\u003e\u003c\/td\u003e    \u003c\/tr\u003e  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatible Fluids\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e✅ Sulfuric acid H₂SO₄ up to 40%\u003c\/li\u003e  \u003cli\u003e✅ Hydrochloric acid HCl up to 35%\u003c\/li\u003e  \u003cli\u003e✅ Nitric acid HNO₃ up to 30%\u003c\/li\u003e  \u003cli\u003e✅ Phosphoric acid H₃PO₄ up to 85%\u003c\/li\u003e  \u003cli\u003e✅ Caustic soda NaOH up to 50%\u003c\/li\u003e  \u003cli\u003e✅ Sodium hypochlorite NaClO up to 15%\u003c\/li\u003e  \u003cli\u003e✅ Ferric chloride FeCl₃ — any concentration\u003c\/li\u003e  \u003cli\u003e✅ Seawater and concentrated brines at elevated temperatures\u003c\/li\u003e  \u003cli\u003e✅ Moderate oxidizing solutions (H₂O₂ up to 20%)\u003c\/li\u003e  \u003cli\u003e✅ Fluids where contamination by metallic ions from the disc is unacceptable\u003c\/li\u003e  \u003cli\u003e⚠️ HF, H₂SO₄ \u0026gt;70%, concentrated ClO₂, H₂O₂ \u0026gt;30%: use \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA anticorrosive valve →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAvailable Operation Versions\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eManual with lever:\u003c\/strong\u003e DN50 to DN150\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eManual with gear reducer:\u003c\/strong\u003e DN200 to DN400\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eWith pneumatic actuator:\u003c\/strong\u003e Single acting NC or NO, double acting. ISO 5211 + NAMUR. For environments with acid vapors: specify actuator with acid-resistant epoxy coating.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eWith electric actuator:\u003c\/strong\u003e 24 VDC, 110 VAC, 220 VAC. ON\/OFF or modulating 4–20 mA.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e  For the complete range of anticorrosive butterfly valves, see \u003ca href=\"\/en\/collections\/valvulas-mariposa-anticorrosiva\"\u003eanticorrosive butterfly valves category →\u003c\/a\u003e\u003c\/p\u003e\u003cdiv\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\u003c\/div\u003e\u003cp\u003e\u003cspan style=\"color: #ba1c1c;\"\u003e\u003ca rel=\"noopener\" title=\"Ficha Técnica Válvula Mariposa Anticorrosiva cuerpo WCB asiento PTFE y Disco recubierto PTFE Cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-mariposa-wafer-cuerpo-bipartido-wcb-disco-teflon-asiento-teflon-ficha-tecnica-pmh31.pdf.pdf?v=1743460826\" style=\"color: #ba1c1c;\" target=\"_blank\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color: #ba1c1c;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/wafer-butterfly-valve-wcb-body-ptfe-disc-seat-pmh31.pdf?v=1772830367\" title=\"Wafer butterfly valve wcb body PTFE disc and seat Data sheet Cematic\" rel=\"noopener\" style=\"color: #ba1c1c;\" target=\"_blank\"\u003e\u003cstrong\u003eData Sheet\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"2\"","offer_id":41253968609460,"sku":"PMH3110","price":5237.88,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\"","offer_id":41253968642228,"sku":"PMH3112","price":6729.67,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":41253968674996,"sku":"PMH3114","price":7129.34,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":41253968707764,"sku":"PMH3118","price":11196.96,"currency_code":"MXN","in_stock":false},{"title":"5\"","offer_id":41253968740532,"sku":"PMH3120","price":13812.31,"currency_code":"MXN","in_stock":false},{"title":"6\"","offer_id":41253968773300,"sku":"PMH3122","price":18280.5,"currency_code":"MXN","in_stock":true},{"title":"8 \"Includes gear box","offer_id":41253968806068,"sku":"PMH3126","price":26854.03,"currency_code":"MXN","in_stock":true},{"title":"10 \"Includes gear box","offer_id":41253968838836,"sku":"PMH3130","price":41635.42,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-mariposa-wcb-disco-asiento-ptfe.jpg?v=1763063451"},{"product_id":"valvula-check-acero-inoxidable-316l","title":"Check Clamp Valve in 316L Stainless Steel","description":"\u003ch2\u003e316L Stainless Steel Clamp Check Valve — Viton Seal\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003e316L stainless steel clamp check valve\u003c\/strong\u003e is the standard component to ensure unidirectional flow in industrial lines with clamp connections. Its spring design ensures closure when there is no flow.\u003c\/p\u003e\n\u003cp\u003eThis prevents fluid backflow without requiring a minimum differential pressure. In addition, the SS316L + Viton combination provides high resistance to corrosion and temperature, making it suitable for aggressive environments and corrosive fluids up to 180 °C.\u003c\/p\u003e\n\u003cp\u003eIts standard sanitary polished interior finish facilitates cleaning between production cycles. Furthermore, its clamp-type connection allows for quick installation and disassembly without special tools.\u003c\/p\u003e\n\u003cp\u003eConsequently, it is the preferred choice in industrial installations where frequent maintenance and agile disassembly are operational requirements.\u003c\/p\u003e\n\u003ch3\u003ePrinciple of Operation — Spring Clamp Check Valve\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eclamp check valve\u003c\/strong\u003e operates automatically and without external actuation. When the fluid flows in the correct direction, the pressure overcomes the spring force, thus opening the disc and allowing flow.\u003c\/p\u003e\n\u003cp\u003eWhen the flow ceases or reverses direction, on the other hand, the spring returns the disc to the seat and immediately closes the valve. In this way, it does not require a minimum differential pressure to close, thereby protecting the line against any attempt of fluid backflow.\u003c\/p\u003e\n\u003cp\u003eThe quick opening and good sealing of the disc also minimize the impact on downstream flow and reduce pressure losses. For this reason, it is the most widely used type of check valve in industrial installations with clamp connections.\u003c\/p\u003e\n\u003ch3\u003eWhy SS316L + Viton in a Check Valve\u003c\/h3\u003e\n\u003cp\u003eThe selection of the body and seal material also defines the actual application range of the check valve. The SS316L + Viton combination is correct in the following cases:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSuperior chemical resistance:\u003c\/strong\u003e Viton resists a significantly wider chemical range than EPDM or NBR, making it suitable for aggressive fluids, acids, organic solvents, and chemicals that would degrade other elastomers.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh temperature up to 180 °C:\u003c\/strong\u003e Viton maintains its sealing properties up to 180 °C, while EPDM is limited to 110 °C. Therefore, it is the correct seal for steam lines, hot water, and process fluids at elevated temperatures.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eBody corrosion resistance:\u003c\/strong\u003e SS316L also contains molybdenum in its composition, which offers greater resistance to chlorides and aggressive environments than SS304. Consequently, it is the standard material in high-demand chemical, petrochemical, and food industries.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDisc and spring in SS316L:\u003c\/strong\u003e All internal components in contact with the fluid are made of SS316L, thus maintaining material consistency and eliminating the risk of galvanic corrosion between components.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\n\u003ctd\u003eSpring check (unidirectional retention)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel (SS316L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSeal\u003c\/td\u003e\n\n\u003ctd\u003eViton\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDisc\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpring\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eClamp Type\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking Pressure\u003c\/td\u003e\n\n\u003ctd\u003ePN 20\/25\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e180 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAvailable Diameters\u003c\/td\u003e\n\n\u003ctd\u003e1\/2\", 3\/4\", 1\", 1½\", 2\", 2½\", 3\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInterior Finish\u003c\/td\u003e\n\n\u003ctd\u003eStandard sanitary polished\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eApplication\u003c\/td\u003e\n\n\u003ctd\u003eHygienic and industrial\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e316L stainless steel clamp check valve\u003c\/strong\u003e with Viton seal is compatible with a wide range of industrial fluids. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAggressive and corrosive chemical fluids\u003c\/strong\u003e — Viton resists acids, organic solvents, and chemicals that would degrade EPDM or NBR; therefore, it is the standard seal in the chemical and petrochemical industry.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eClean steam and hot water up to 180 °C\u003c\/strong\u003e — Viton resists steam at SIP sterilization temperatures; likewise, SS316L does not corrode with clean steam condensate.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood and pharmaceutical fluids\u003c\/strong\u003e — SS316L meets the material requirements for food contact; in addition, Viton is compatible with most food and pharmaceutical process fluids.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eProcess water and treated water\u003c\/strong\u003e — SS316L resists corrosion from process water, including water with chlorides; however, for seawater or very high concentrations of chlorides, consult Cematic's technical team.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePetrochemical fluids and hydrocarbons\u003c\/strong\u003e — Viton resists hydrocarbons, oils, and solvents typical of the petrochemical industry; however, verify specific compatibility for extremely aggressive fluids.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the Stainless Steel Clamp Check Valve\u003c\/h3\u003e\n\u003ch4\u003eChemical Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e316L stainless steel clamp check valve\u003c\/strong\u003e is suitable for chemical processes where aggressive or corrosive liquids are handled. Viton resists a wide range of chemicals, thereby ensuring seal integrity with fluids that would degrade conventional elastomers.\u003c\/p\u003e\n\u003cp\u003eLikewise, the clamp connection allows for quick disassembly for inspection or seal replacement without interrupting the entire circuit.\u003c\/p\u003e\n\u003ch4\u003eWater and Wastewater Treatment\u003c\/h4\u003e\n\u003cp\u003eIn water treatment systems, this check valve also prevents backflow and ensures that treated water does not return to the system. The corrosion resistance of SS316L is also suitable for handling water with chlorides and disinfection agents.\u003c\/p\u003e\n\u003cp\u003eConsequently, it is a more durable alternative to check valves made of materials with lower chemical resistance.\u003c\/p\u003e\n\u003ch4\u003ePetrochemical Industry\u003c\/h4\u003e\n\u003cp\u003eThe heat and corrosion resistance properties of SS316L and Viton are also beneficial in petrochemical environments. For this reason, this valve is reliable in lines that handle hydrocarbons, solvents, and chemicals at high temperatures.\u003c\/p\u003e\n\u003cp\u003eAdditionally, the PN 20\/25 pressure covers most process services in petrochemical plants.\u003c\/p\u003e\n\u003ch4\u003eTubing Systems and Clamp Connections\u003c\/h4\u003e\n\u003cp\u003eIn installations where clamp connections are standard, this check valve also integrates directly into the circuit without adapters or reducers.\u003c\/p\u003e\n\u003cp\u003eTherefore, it simplifies the line design and reduces the number of components. In addition, clamp disassembly allows the valve to be replaced in seconds without modifying existing piping.\u003c\/p\u003e\n\u003ch4\u003eEnergy and Steam Systems\u003c\/h4\u003e\n\u003cp\u003eIn systems with process steam up to 180 °C, this check valve therefore ensures unidirectional flow and protects equipment from damage due to fluid backflow. Likewise, the SS316L spring maintains stable closing force over time.\u003c\/p\u003e\n\u003cp\u003eIt even withstands frequent thermal cycles that would degrade standard material springs.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of check valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-check\"\u003echeck valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #9e1919;\"\u003e\u003cstrong\u003e\u003cspan style=\"vertical-align: inherit;\"\u003e\u003cspan style=\"vertical-align: inherit;\"\u003e\u003ca style=\"color: #9e1919;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/Valvula_Check_Clamp_en_Acero_Inoxidable_316L_-_PCCS01.pdf?v=1722903432\" title=\"Hygienic Clamp Check Valve Technical Data Sheet\" rel=\"noopener\" target=\"_blank\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\"","offer_id":50447801647417,"sku":"PCCS0104","price":1646.02,"currency_code":"MXN","in_stock":true},{"title":"3\/4\"","offer_id":50447801680185,"sku":"PCCS105","price":0.0,"currency_code":"MXN","in_stock":false},{"title":"1\"","offer_id":41296004841652,"sku":"PCCS0106","price":1847.58,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\"","offer_id":41296004874420,"sku":"PCCS0108","price":1948.35,"currency_code":"MXN","in_stock":true},{"title":"2\"","offer_id":41296004907188,"sku":"PCCS0110","price":2183.5,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\"","offer_id":50447815541049,"sku":"PCCS0112","price":2821.75,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":50447801712953,"sku":"PCCS0114","price":3460.01,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/products\/Valvula_check_clamp_higienica_en_acero_inoxidable_316L_con_sello_Viton.jpg?v=1774462994"},{"product_id":"valvula-mariposa-higienica-soldable-ss316l","title":"SS 316L Weldable Hygienic Butterfly Valve","description":"\u003ch2\u003eSanitary Weldable Butterfly Valve in 316L Stainless Steel — 3A Type, EPDM or Viton\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003esanitary weldable butterfly valve\u003c\/strong\u003e in 316L stainless steel is the standard fluid control component in sanitary installations where the connection is permanent by butt welding. Unlike the version with a removable clamp connection, this valve is welded directly to the process piping.\u003c\/p\u003e\n\u003cp\u003eThis eliminates all mechanical joint points that could be sources of leakage or contamination. Furthermore, its 3A Type certification guarantees compliance with the most demanding hygiene standards in the food, pharmaceutical, and beverage industries.\u003c\/p\u003e\n\u003cp\u003eIt is also available with two seat options. EPDM covers applications up to 110 °C and Viton up to 200 °C. Consequently, a single valve platform covers everything from standard food processes to full-temperature SIP sterilization.\u003c\/p\u003e\n\u003ch3\u003eOperating Principle — Sanitary Weldable Butterfly Valve\u003c\/h3\u003e\n\u003cp\u003eThe disc rotates 90° between the fully open and fully closed positions. Standard operation is manual via a lever, so it does not require electrical or pneumatic power. It is also the simplest option to install and operate. The Viton seat variant also includes a multi-position lever, which allows flow adjustment in intermediate positions and locking the valve in the desired position.\u003c\/p\u003e\n\u003cp\u003eThanks to the weldable ports, the joint between the valve and the pipe is permanent and without mechanical gaskets. Consequently, product retention points and leakage risks that exist in clamp or threaded connections are eliminated. Thus, it is the preferred connection in aseptic lines where circuit integrity is critical.\u003c\/p\u003e\n\u003ch3\u003eWeldable vs. Clamp — when to choose each connection\u003c\/h3\u003e\n\u003cp\u003eThe choice between weldable and clamp connection depends on the type of installation and maintenance requirements. Therefore, it is important to define it before specifying the valve. The weldable connection is correct in the following cases:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePermanent installations:\u003c\/strong\u003e When the valve will not be frequently disassembled, welding offers greater integrity than clamping, as it eliminates the risk of leaks due to gasket deterioration or clamp loosening.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh-purity aseptic lines:\u003c\/strong\u003e The welded joint has no cavities or external gaskets. Therefore, it is the standard connection in systems where external contamination is unacceptable.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eReduction of leak points:\u003c\/strong\u003e In installations with many valves, welding reduces the total number of mechanical joints. This simplifies preventive circuit maintenance.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003eThe clamp connection, on the other hand, is correct when the valve needs to be frequently disassembled for inspection or off-line cleaning. For this application, see the \u003ca href=\"https:\/\/cematic.com.mx\/products\/valvula-mariposa-clamp-ss316l\"\u003esanitary clamp butterfly valve →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cp\u003eThe body and disc are made of 316L stainless steel, which is the standard material in hygienic applications, as it offers greater resistance to chlorides and cleaning agents than SS304. The seat is available in EPDM or Viton, depending on process requirements. This allows the valve to be adapted to different temperature conditions and chemical compatibility.\u003c\/p\u003e\n\u003cp\u003eFinally, the ports are butt-weldable to stainless steel piping of the same diameter. This ensures material continuity throughout the process line.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHygienic standard\u003c\/td\u003e\n\n\u003ctd\u003e3A Type\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eWeldable ports\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody and disc material\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel (SS316L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eEPDM seat\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C to 110 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eViton (FKM) seat\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C to 200 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum working pressure\u003c\/td\u003e\n\n\u003ctd\u003e10 bar (145 psi)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAvailable diameters\u003c\/td\u003e\n\n\u003ctd\u003e1\/2\", 1\", 1½\", 2\", 2½\", 3\", 4\", 5\", 6\", 8\"\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eStandard operation\u003c\/td\u003e\n\n\u003ctd\u003eManual by lever\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eViton variant operation\u003c\/td\u003e\n\n\u003ctd\u003eMulti-position lever\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBase SKU\u003c\/td\u003e\n\n\u003ctd\u003ePMSW1\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eSeat Selection — EPDM or Viton\u003c\/h3\u003e\n\u003cp\u003eThe seat defines the maximum temperature and the actual chemical compatibility of the valve, making it the most important decision when selecting this valve:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eEPDM (-20 °C to 110 °C):\u003c\/strong\u003e Compatible with water, low-temperature steam, dilute acids and alkalis, and standard CIP agents. Therefore, it is the most common seat in food and pharmaceutical processes that do not exceed 110 °C. It is also available in all diameters from 1\/2\" to 8\".\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eViton (-20 °C to 200 °C):\u003c\/strong\u003e For full-temperature SIP sterilization, essential oils, or solvents incompatible with EPDM, Viton is, however, the correct option. Its availability is limited to diameters from 1\" to 2\". It also includes a multi-position lever for flow regulation.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003esanitary weldable butterfly valve\u003c\/strong\u003e is compatible with the most common fluids in the sanitary and chemical industries. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePurified water and water for injection (WFI)\u003c\/strong\u003e — SS316L does not contribute metallic ions; therefore, it is the standard material in high-purity pharmaceutical lines\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eClean steam — up to 110 °C with EPDM, up to 200 °C with Viton\u003c\/strong\u003e — welding eliminates leak points that exist in clamp joints at SIP sterilization temperature; also, SS316L resists condensate without corrosion\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCIP agents — caustic soda, nitric acid, peracetic acid\u003c\/strong\u003e — SS316L and both seats are compatible with the most common CIP agents; however, verify concentration and temperature with Cematic's technical team for extreme conditions\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood products — dairy, juices, beer, vegetable oils\u003c\/strong\u003e — SS316L meets food contact requirements under the 3A Type standard; in addition, welded ports eliminate product retention cavities\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eModerately aggressive chemical fluids\u003c\/strong\u003e — acids and alkalis compatible with SS316L; however, for aggressive solvents or highly corrosive fluids, consult Cematic's technical team\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the sanitary weldable butterfly valve\u003c\/h3\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003esanitary weldable butterfly valve\u003c\/strong\u003e controls flow in food and beverage production lines where the welded connection guarantees circuit integrity during the process.\u003c\/p\u003e\n\u003cp\u003eSS316L and the 3A Type standard ensure compliance with food safety requirements. Therefore, it is the preferred component in plants with FSSC 22000 or BRC certification. In addition, welded ports eliminate product retention points that do exist in clamp connections.\u003c\/p\u003e\n\u003ch4\u003ePharmaceutical and Biological Industry\u003c\/h4\u003e\n\u003cp\u003eIn the production of medicines and biological products, process sterility is, therefore, a critical requirement. Therefore, the welded connection is the preferred type of joint in aseptic lines. It also eliminates mechanical gaskets, which are microbiological risk points. Furthermore, the Viton seat allows SIP sterilization cycles up to 200 °C without seal degradation.\u003c\/p\u003e\n\u003ch4\u003ePurified Water Treatment\u003c\/h4\u003e\n\u003cp\u003eIn water purification and distribution systems, this valve regulates flow without contaminating the fluid. Likewise, it is the standard component in purified water loops. Consequently, it is the standard component in purified water loops where the purity of the material in contact is a regulatory requirement. In this way, SS316L ensures that no metallic ions are introduced into the process water.\u003c\/p\u003e\n\u003ch4\u003eChemical Industry\u003c\/h4\u003e\n\u003cp\u003eIn chemical processing plants with corrosive fluids, the SS316L body offers greater resistance than SS304. In addition, its resistance to chlorides and oxidizing agents is superior. Therefore, it is the correct option in permanent installations where frequent connection maintenance is not feasible. Furthermore, welded ports eliminate the risk of leaks at connection points that, over time, affect installation safety.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of sanitary butterfly valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvula-mariposa-higienica-clamp-soldable\"\u003esanitary butterfly valve collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ca rel=\"noopener\" title=\"Technical Data Sheet Sanitary Weldable Butterfly Valve SS316L EPDM Seat Cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-mariposa-soldable-cuerpo-ss316l-asiento-epdm-pmsw.pdf?v=1745350752\" target=\"_blank\"\u003e\u003cspan style=\"color: #8f1717;\"\u003e\u003cstrong\u003eEPDM Technical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-mariposa-soldable-multiposicion-ss316l-asiento-viton-pmsc02.pdf?v=1745350930\" title=\"Technical Data Sheet Sanitary Weldable Butterfly Valve SS316L Viton Seat Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #8f1717;\"\u003e\u003cstrong\u003eViton Technical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\" \/ EPDM","offer_id":49698947432761,"sku":"PMSW104","price":952.34,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ Viton","offer_id":41296040624308,"sku":"PMSW0206","price":3689.44,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ EPDM","offer_id":49698947465529,"sku":"PMSW106","price":952.34,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\" \/ Viton","offer_id":41296040657076,"sku":"PMSW0208","price":4008.66,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\" \/ EPDM","offer_id":49698947498297,"sku":"PMSW108","price":1058.16,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ Viton","offer_id":41296040689844,"sku":"PMSW0210","price":4535.97,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ EPDM","offer_id":49698947531065,"sku":"PMSW110","price":1199.25,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\" \/ EPDM","offer_id":49698947563833,"sku":"PMSW112","price":1481.42,"currency_code":"MXN","in_stock":true},{"title":"3\" \/ EPDM","offer_id":49698947596601,"sku":"PMSW114","price":1904.68,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ EPDM","offer_id":49698947629369,"sku":"PMSW116","price":2469.04,"currency_code":"MXN","in_stock":true},{"title":"5\" \/ EPDM","offer_id":49698947662137,"sku":"PMSW118","price":4761.71,"currency_code":"MXN","in_stock":true},{"title":"6\" \/ EPDM","offer_id":49698947694905,"sku":"PMSW120","price":6560.58,"currency_code":"MXN","in_stock":true},{"title":"8\" \/ EPDM","offer_id":49698947727673,"sku":"PMSW124","price":11992.46,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-mariposa-higienica-ss316l-soldable-manual_5f482d96-97f6-43a7-8ce5-0ff26cab3348.jpg?v=1756139048"},{"product_id":"valvula-de-bola-higienica-soldable","title":"Weldable Hygienic Ball Valve S.W. 316L stainless steel","description":"\u003ch2\u003eWeldable Hygienic Ball Valve in 316L Stainless Steel — Cavity Filled, PTFE \/ TFM1600\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003eweldable hygienic ball valve\u003c\/strong\u003e in 316L stainless steel is the fluid control component for permanent sanitary installations where a butt-welded connection ensures maximum circuit integrity. Unlike the version with a clamp connection, this valve is welded directly to the process piping.\u003c\/p\u003e\n\u003cp\u003eThis eliminates all mechanical joint points that could be sources of leakage or contamination. Its cavity-filled design also eliminates dead spaces between the ball and the body, making it the right choice for high-purity applications where product retention in internal cavities is unacceptable.\u003c\/p\u003e\n\u003cp\u003eIt is also available with a PTFE or TFM1600 seat depending on the chemical and mechanical resistance requirements of the process. In addition, its ISO5211 mounting allows pneumatic or electric actuators to be installed without replacing the valve, thereby protecting the investment against changes in the plant's automation level.\u003c\/p\u003e\n\u003ch3\u003eOperating Principle — Weldable Hygienic Ball Valve\u003c\/h3\u003e\n\u003cp\u003eThe ball rotates 90° between the fully open and fully closed positions. In the open position, the ball bore is aligned with the piping, allowing fluid to flow without obstruction or significant pressure drops.\u003c\/p\u003e\n\u003cp\u003eIn the closed position, however, the ball rotates 90° and completely blocks the fluid passage. This ensures a tight seal, independent of differential pressure.\u003c\/p\u003e\n\u003cp\u003eThe cavity-filled design is also the key differentiator from conventional ball valves. In a standard valve, there are spaces between the ball and the body that retain product between cycles. The cavity-filled design eliminates these spaces, meaning fluid is not trapped, and effective CIP cleaning can be achieved without disassembling the valve.\u003c\/p\u003e\n\u003ch3\u003eWeldable vs. Clamp Connection — When to choose each option\u003c\/h3\u003e\n\u003cp\u003eThe choice between a weldable and a clamp connection depends on the type of installation and the operational requirements of the process. The weldable connection is the correct choice in the following cases:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePermanent high-purity installations:\u003c\/strong\u003e The welded joint has no external gaskets or retention cavities, making it the preferred type of connection in aseptic systems where external contamination is unacceptable.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eReduced leak points:\u003c\/strong\u003e In circuits with many valves, welding eliminates mechanical joints. This reduces the total number of potential leak points in the installation.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh-pressure systems:\u003c\/strong\u003e The welded joint also withstands higher pressures than the clamp connection. It does not rely on mechanical tightening of the clamp to maintain the seal.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003eThe clamp connection, on the other hand, is suitable when the valve needs to be frequently disassembled for inspection or maintenance. For this application, see the \u003ca href=\"https:\/\/cematic.com.mx\/products\/valula-bola-clamp-higienica\"\u003ehygienic ball valve with clamp connection →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cp\u003eThe body is made of 316L stainless steel, which is the standard material in demanding hygienic applications, as its molybdenum content offers greater resistance to chlorides and cleaning agents than SS304. The ball is also made of SS316L, maintaining material consistency throughout the fluid contact area.\u003c\/p\u003e\n\u003cp\u003eThe internal finish Ra ≤ 0.8 µm eliminates surface roughness that could retain product or microorganisms. Finally, the ISO5211 mounting is integrated into the body, allowing the valve to be automated with any compatible quarter-turn actuator.\u003c\/p\u003e\n\u003ch3\u003eAvailable Seats — PTFE or TFM1600\u003c\/h3\u003e\n\u003cp\u003ePTFE Teflon is chemically inert to most fluids, making it ideal for environments with aggressive or corrosive fluids. Its low coefficient of friction also improves valve performance in frequent opening and closing cycles.\u003c\/p\u003e\n\u003cp\u003eTFM1600, on the other hand, has similar properties to PTFE but with significant improvements in mechanical and abrasion resistance. It also maintains its stable properties at higher temperatures than conventional PTFE, making it the correct choice for processes with frequent thermal cycles or high pressures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody and ball material\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel (SS316L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAvailable seats\u003c\/td\u003e\n\n\u003ctd\u003ePTFE (Teflon) or TFM1600\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eButt Weld (S.W.)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDesign\u003c\/td\u003e\n\n\u003ctd\u003eCavity Filled (no dead spaces)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eActuator mounting\u003c\/td\u003e\n\n\u003ctd\u003eISO5211\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum working pressure\u003c\/td\u003e\n\n\u003ctd\u003e1000 psi (PN63)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum temperature\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum temperature\u003c\/td\u003e\n\n\u003ctd\u003e180 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInternal finish\u003c\/td\u003e\n\n\u003ctd\u003eRa ≤ 0.8 µm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOperation\u003c\/td\u003e\n\n\u003ctd\u003eManual (lever), pneumatic or electric actuator\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eOperation Options\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eweldable hygienic ball valve\u003c\/strong\u003e is available in three operation modes. The manual lever is the standard option, requiring no electrical or pneumatic power. The pneumatic actuator, however, automates opening and closing using compressed air.\u003c\/p\u003e\n\u003cp\u003eThis allows the valve to be integrated into PLC control systems. Finally, the On-Off or modulating electric actuator is for processes where proportional position control is necessary. All options are supplied assembled and tested, ready for installation.\u003c\/p\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eweldable hygienic ball valve\u003c\/strong\u003e is compatible with a wide range of fluids in the sanitary and industrial sectors. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePurified water and water for injection (WFI)\u003c\/strong\u003e — SS316L does not contribute metallic ions; therefore, it is the standard material in high-purity pharmaceutical and biotechnological lines.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood fluids — dairy products, juices, beer, vegetable oils\u003c\/strong\u003e — SS316L and PTFE\/TFM1600 seats comply with food contact requirements; also, the Ra ≤ 0.8 µm finish prevents residue retention between batches.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eClean steam and hot water up to 180 °C\u003c\/strong\u003e — the welded connection eliminates leak points that exist in clamp joints at SIP sterilization temperatures; in addition, SS316L resists condensate without corrosion.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCIP agents — caustic soda, nitric acid, peracetic acid\u003c\/strong\u003e — PTFE and TFM1600 are inert to CIP cleaning agents; however, verify concentration and temperature with Cematic's technical team for extreme conditions.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCorrosive chemical fluids\u003c\/strong\u003e — PTFE is inert to most acids, bases, and solvents; for extremely aggressive fluids, TFM1600 offers greater mechanical and abrasion resistance.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the weldable hygienic ball valve\u003c\/h3\u003e\n\u003ch4\u003ePharmaceutical and Biotechnology Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eweldable hygienic ball valve\u003c\/strong\u003e is the standard component in aseptic lines for pharmaceutical and biotechnological production. The welded connection eliminates mechanical joints, thereby reducing microbiological risk points in the circuit. In addition, the cavity-filled design ensures no product residue remains between cycles, which is a requirement in validated GMP processes.\u003c\/p\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eIn food and beverage production lines, this valve controls the flow of dairy products, juices, beers, and oils with total hygienic integrity. The welded connection is also the standard for installation in these lines.\u003c\/p\u003e\n\u003cp\u003eSS316L and PTFE\/TFM1600 seats also comply with food contact requirements. Additionally, effective CIP cleaning is achieved without disassembling the valve thanks to the cavity-filled design.\u003c\/p\u003e\n\u003ch4\u003eHigh-Temperature CIP and SIP Systems\u003c\/h4\u003e\n\u003cp\u003eIn automated cleaning and sterilization systems, this valve also withstands the aggressive conditions of CIP\/SIP cycles. The welded connection does not exhibit gasket deterioration that occurs in clamp connections after many temperature cycles. Consequently, it is the most durable option in installations with frequent CIP\/SIP cycles.\u003c\/p\u003e\n\u003ch4\u003eHigh-Purity Chemical Industry\u003c\/h4\u003e\n\u003cp\u003eIn chemical process plants, the cavity-filled design of SS316L with a PTFE or TFM1600 seat meets purity requirements. Therefore, it is the correct component when the fluid requires inert materials and no dead spaces.\u003c\/p\u003e\n\u003cp\u003eThis makes it the correct component in high-purity chemical installations where conventional valves generate contamination due to fluid retention in internal cavities.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of hygienic valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-higienicas\"\u003ehygienic valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ca rel=\"noopener\" title=\"Technical Data Sheet Weldable Hygienic Ball Valve in 316L Stainless Steel Cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-higienica-soldable-acero-inoxidable-316l-pbb01.pdf?v=1776283440\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #8f1616;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eTFM1600 Seat Technical Data Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-higienica-ptfe-soldable-acero-inoxidable-316l-pbs02.pdf?v=1776283424\" title=\"Technical Data Sheet Weldable Hygienic Ball Valve in 316L Stainless Steel PTFE Seat Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline; color: #8f1616;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003ePTFE Seat Technical Data Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\" \/ PTFE","offer_id":49708691521849,"sku":"PBS0202","price":1171.16,"currency_code":"MXN","in_stock":true},{"title":"3\/4\" \/ PTFE","offer_id":49708691554617,"sku":"PBS0204","price":1223.25,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ TFM1600","offer_id":49563039826233,"sku":"PBB0106","price":11452.03,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ PTFE","offer_id":49708691587385,"sku":"PBS0206","price":2355.79,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\" \/ TFM1600","offer_id":41302668083380,"sku":"PBB0108","price":11452.03,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\" \/ PTFE","offer_id":49708691620153,"sku":"PBS0208","price":3891.59,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ PTFE","offer_id":49708691652921,"sku":"PBS0210","price":4998.08,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\" \/ PTFE","offer_id":49708691685689,"sku":"PBS0212","price":7666.42,"currency_code":"MXN","in_stock":true},{"title":"3\" \/ PTFE","offer_id":49708691718457,"sku":"PBS0214","price":12521.7,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ PTFE","offer_id":49708691751225,"sku":"PBS0216","price":18743.93,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-bola-higienica-soldable-316l-con-manija.jpg?v=1764025574"},{"product_id":"valvula-mariposa-higienica-soldable-316l-viton-3pc","title":"Hygienic Weldable Butterfly Valve | SS316L | Viton | 3-Piece Body","description":"\u003ch2\u003e316L Stainless Steel Weldable Sanitary Butterfly Valve — 3-Piece Body, Viton\u003c\/h2\u003e\n\u003cp\u003eCematic's 316L stainless steel \u003cstrong\u003eweldable sanitary butterfly valve\u003c\/strong\u003e is the standard component for fluid control in permanent sanitary installations. Its 3-piece body also allows for disassembling the disc and seal without removing the valve from the pipeline.\u003c\/p\u003e\n\u003cp\u003eConsequently, maintenance is faster and does not require cutting the pipeline or affecting the rest of the circuit.\u003c\/p\u003e\n\u003cp\u003eIts butt-weld connection eliminates fluid retention points that exist in clamp connections, making it the correct solution for sanitary lines where the integrity of the welded circuit is a requirement.\u003c\/p\u003e\n\u003cp\u003eLikewise, its integrated ISO5211 mounting allows for future automation with pneumatic or electric actuators, without needing to replace the valve.\u003c\/p\u003e\n\u003ch3\u003eOperation Options — Manual or Automated\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eweldable sanitary butterfly valve\u003c\/strong\u003e is available in standard manual operation and can be automated with three actuator options depending on the required level of automation:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eManual with Lever:\u003c\/strong\u003e Direct operation without electrical or pneumatic power. Therefore, it is the correct option at process points where automation is not necessary or where the operator controls the flow manually. The ISO5211 mounting also allows for installing an actuator in the future without replacing the valve.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eStandard Pneumatic Actuator:\u003c\/strong\u003e Automates with compressed air for quick opening and closing from a PLC. Therefore, it is the most common option in installations with an available pneumatic network. Cematic also delivers the valve + pneumatic actuator assembly, assembled and calibrated, ready for installation. See \u003ca href=\"https:\/\/cematic.com.mx\/products\/valvula-mariposa-higienica-316l-actuador-neumatico-3pc\"\u003eweldable sanitary butterfly valve with pneumatic actuator →\u003c\/a\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSanitary Pneumatic Actuator:\u003c\/strong\u003e Pneumatic actuator with stainless steel cover for installations where the entire assembly must withstand aggressive environments, frequent washdowns, or areas classified as sanitary. Cematic also delivers the assembled and calibrated unit. Therefore, check availability with the Cematic technical team.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eElectric Actuator:\u003c\/strong\u003e It is compatible with the ISO5211 mounting, so no modification of the valve is required for installation. Therefore, it is a viable option for installations where compressed air supply is not available. Also, consult availability with the Cematic technical team.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eWhy a 3-Piece Body in a Weldable Valve\u003c\/h3\u003e\n\u003cp\u003eThe 3-piece body is also the key differentiator of this valve compared to single-body weldable butterfly valves. In a single-body weldable valve, accessing the disc and seal requires cutting the pipeline.\u003c\/p\u003e\n\u003cp\u003eThis implies an extended shutdown and welding work on-site. In contrast, the 3-piece body is separated by screws, so the disc and Viton seal are accessible without touching the pipeline. This way, preventive maintenance is carried out in minutes with the line out of service for the shortest possible time.\u003c\/p\u003e\n\u003ch3\u003eWeldable vs. Clamp — When to Choose a Weldable Connection\u003c\/h3\u003e\n\u003cp\u003eThe choice between weldable and clamp, moreover, depends on the type of installation and the operational requirements of the process. The weldable connection is correct in the following cases:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh-Purity Aseptic Lines:\u003c\/strong\u003e The welded joint has no external gaskets or retention cavities, making it the preferred type of connection in systems where external contamination is unacceptable. The clamp connection, in contrast, has a gasket that can be a microbiological risk point.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePermanent Installations:\u003c\/strong\u003e When the valve will not be frequently disassembled, welding also offers greater integrity than clamping. It also eliminates the progressive deterioration of the clamp gasket due to temperature and cleaning cycles.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eGreater Pressure Resistance:\u003c\/strong\u003e The welded joint also withstands higher pressures than the clamp connection. Therefore, it is the correct option when the working pressure approaches the upper limit of the system.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cp\u003eThe body is made of 316L stainless steel with a sanitary polished finish, which is the standard material in demanding sanitary applications. Its molybdenum content also offers greater resistance to chlorides and CIP agents than SS304. The disc is also made of SS316L, maintaining material consistency in the fluid contact area.\u003c\/p\u003e\n\u003cp\u003eThe seal is made of Viton (FKM), which offers high chemical and thermal resistance. It is also compatible with most aggressive industrial fluids up to 180 °C. Finally, the internal finish Ra ≤ 0.8 µm eliminates surface roughness where microorganisms or product residues could accumulate.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody type\u003c\/td\u003e\n\n\u003ctd\u003e3-piece detachable\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody material\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel (sanitary polished finish)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDisc\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSeal \/ Seat\u003c\/td\u003e\n\n\u003ctd\u003eViton (FKM)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eButt weld\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eStandard operation\u003c\/td\u003e\n\n\u003ctd\u003eManual with lever\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eActuator mounting\u003c\/td\u003e\n\n\u003ctd\u003eISO5211\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInternal finish\u003c\/td\u003e\n\n\u003ctd\u003eRa ≤ 0.8 µm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking pressure\u003c\/td\u003e\n\n\u003ctd\u003e0 to 20 bar (0 to 290 psi)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum temperature\u003c\/td\u003e\n\n\u003ctd\u003e-20 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum temperature\u003c\/td\u003e\n\n\u003ctd\u003e180 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCIP\/SIP compatible\u003c\/td\u003e\n\n\u003ctd\u003eYes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eweldable sanitary butterfly valve\u003c\/strong\u003e with a Viton seal is compatible with the most demanding fluids in sanitary and industrial applications. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFood fluids — juices, milk, beer, wine\u003c\/strong\u003e — SS316L resists the most aggressive CIP agents; also, Viton withstands high temperatures without deforming in cleaning cycles\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePharmaceutical and cosmetic fluids\u003c\/strong\u003e — materials comply with requirements for direct contact with human consumption products; furthermore, the Ra ≤ 0.8 µm finish facilitates sterilization and prevents microorganism accumulation\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCorrosive chemical fluids\u003c\/strong\u003e — Viton is compatible with a wide variety of acids, solvents, and corrosive products; therefore, this valve is effective in demanding chemical processes where EPDM is insufficient\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePetrochemical fluids and hydrocarbons\u003c\/strong\u003e — the Viton seat is compatible with hydrocarbons, oils, and fuels; likewise, the SS316L body extends service life in corrosive environments\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSteam, hot water, and high-temperature fluids up to 180 °C\u003c\/strong\u003e — Viton maintains its seal integrity above 120 °C; in contrast, EPDM or NBR are limited to 110 °C and 80 °C respectively\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the Weldable Sanitary Butterfly Valve\u003c\/h3\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eweldable sanitary butterfly valve\u003c\/strong\u003e is the standard component in food and beverage production lines where a welded connection ensures circuit integrity. Its Ra ≤ 0.8 µm finish also allows for efficient CIP cleaning without disassembling the valve. Consequently, downtime between batches is significantly reduced compared to valves with mechanical connections.\u003c\/p\u003e\n\u003ch4\u003ePharmaceutical and Cosmetic Industry\u003c\/h4\u003e\n\u003cp\u003eIn pharmaceutical and cosmetic process lines, the welded connection also eliminates microbiological risk points that exist in clamp unions. Therefore, it is the preferred connection type in GMP-validated aseptic systems.\u003c\/p\u003e\n\u003cp\u003eLikewise, the 3-piece body allows for inspection and replacement of the Viton seal without disassembling the valve, which reduces downtime during preventive maintenance.\u003c\/p\u003e\n\u003ch4\u003eChemical Industry\u003c\/h4\u003e\n\u003cp\u003eViton, therefore, resists a wide variety of acids, solvents, and corrosive products that would degrade EPDM or NBR. Consequently, this valve ensures a long service life in demanding chemical environments. In addition, the option of automation with a pneumatic actuator allows for remote fluid control without manual intervention in chemical hazard zones.\u003c\/p\u003e\n\u003ch4\u003ePetrochemical Industry and High-Temperature Processes\u003c\/h4\u003e\n\u003cp\u003eThe Viton seat is also compatible with hydrocarbons, oils, and fuels typical of the energy sector. Furthermore, when processes exceed 120 °C, Viton maintains its seal integrity where other elastomers fail. Therefore, this valve is suitable for steam, hot water, and process liquids at elevated temperatures.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of sanitary butterfly valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvula-mariposa-higienica-clamp-soldable\"\u003esanitary butterfly valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Ficha Técnica de Válvula Mariposa Higiénica Soldable Cuerpo 3pc SS316L\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-mariposa-higienica-soldable-cuerpo-ss316l-asiento-viton-pmsw3.pdf?v=1751045175\" target=\"_blank\"\u003e\u003cspan style=\"color: #b31d1d;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"2\"","offer_id":50913875820857,"sku":"PMSW310","price":2385.79,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":50913875853625,"sku":"PMSW314","price":4356.79,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":50913875886393,"sku":"PMSW316","price":6535.89,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/Valvula_mariposa_higienica_soldable_316L_con_manija_cuerpo_3_piezas_Viton.jpg?v=1774454591"},{"product_id":"valvula-check-wafer-ss316-disco-columpio-asiento-metalico","title":"SS316 Wafer Swing Check Valve | Metal Seat | PN16","description":"\u003ch2\u003e316 Stainless Steel Swing Wafer Check Valve — Metal Seat, PN16, ANSI Class 150LB\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003e316 stainless steel swing wafer check valve with metal seat\u003c\/strong\u003e ensures unidirectional flow in industrial systems where elastomers are not a viable option. Unlike check valves with Viton or EPDM seats, the CF8M metal seat does not experience chemical or thermal degradation.\u003c\/p\u003e\n\u003cp\u003eTherefore, it is the correct choice for highly corrosive fluids, extreme temperatures, or media with abrasive particles. Its compact wafer design also installs directly between ANSI Class 150LB flanges without the need for additional parts.\u003c\/p\u003e\n\u003cp\u003eAll fluid-contacting components—body, disc, and seat—are made of CF8M, maintaining material consistency throughout the process area. Consequently, this eliminates the risk of galvanic corrosion between components of different materials and simplifies plant material specification.\u003c\/p\u003e\n\u003ch3\u003ePrinciple of Operation — Swing Disc with Metal Seat\u003c\/h3\u003e\n\u003cp\u003eThe disc pivots on a horizontal shaft mounted in the upper part of the body. When fluid flows in the correct direction, pressure pushes the disc upward, opening the passage. When the flow stops, the SS304 spring returns the disc to the metal seat and closes the valve. This way, the closure is automatic without the need for operator intervention.\u003c\/p\u003e\n\u003cp\u003eThe metal seat is also the key differentiator compared to versions with Viton or EPDM. It does not rely on an elastomer for sealing, so its hermeticity is not affected by temperature, chemical degradation, or aging. This offers a longer service life in extreme process conditions.\u003c\/p\u003e\n\u003ch3\u003eMetal Seat vs. Elastomeric Seat — When to Choose Metal\u003c\/h3\u003e\n\u003cp\u003eThe selection of the seat type is also the most important criterion when specifying this check valve. The following describes cases where the CF8M metal seat is the correct choice:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFluids with abrasive particles:\u003c\/strong\u003e Suspended particles deteriorate rubber seats over time. The metal seat, however, resists abrasion without loss of hermeticity. Therefore, it is the standard option for fluids with solids such as pulp, slurries, or fluids with particles.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eExtreme temperatures:\u003c\/strong\u003e Elastomers like Viton have a defined thermal limit. The CF8M metal seat, however, withstands higher temperatures without degrading. Likewise, it does not deform due to frequent thermal cycles.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eElastomer-incompatible fluids:\u003c\/strong\u003e Some solvents, concentrated acids, and specific fluids attack Viton or EPDM. In these cases, the metal seat is the only viable alternative, as CF8M offers chemical resistance without relying on a rubber seal.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eAll-metal specification:\u003c\/strong\u003e In plants where the piping class requires all-metal materials without elastomers, the CF8M metal seat meets this requirement. Therefore, it is the correct component for lines with aggressive or high-purity fluids where rubber sealants are not accepted.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cp\u003eThe body is made of 316 stainless steel (CF8M), which is the standard material for industrial services with corrosive fluids. Its molybdenum content also offers greater resistance to chlorides and acids than SS304.\u003c\/p\u003e\n\u003cp\u003eThe swing disc is also made of CF8M, maintaining material consistency throughout the fluid contact zone. The seat is metal CF8M—without elastomers—ensuring hermeticity without chemical or thermal degradation of the seal. Finally, the spring is made of SS304, ensuring corrosion resistance and stable closing force over time.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\n\u003ctd\u003eSwing wafer check disc\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\n\u003ctd\u003eWafer Type (between flanges)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eFlange Class\u003c\/td\u003e\n\n\u003ctd\u003eANSI Class 150LB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking Pressure\u003c\/td\u003e\n\n\u003ctd\u003ePN16 (232 psi)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\n\u003ctd\u003eCF8M (SS316)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDisc\u003c\/td\u003e\n\n\u003ctd\u003eCF8M (SS316)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSeat\u003c\/td\u003e\n\n\u003ctd\u003eMetal CF8M (SS316) — without elastomer\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpring\u003c\/td\u003e\n\n\u003ctd\u003eSS304\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e316 SS swing wafer check valve with metal seat\u003c\/strong\u003e is compatible with demanding industrial fluids where an elastomeric seat is not viable. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFluids with particles or suspended solids\u003c\/strong\u003e — the metal seat resists abrasion without deterioration; therefore, it is the standard option for fluids with pulp, slurries, or particles that would damage Viton\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCorrosive chemical fluids\u003c\/strong\u003e — CF8M resists aggressive acids, bases, and solvents; likewise, the absence of elastomer eliminates the risk of chemical incompatibility of the seal\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePotable water and water treatment\u003c\/strong\u003e — SS316 resists corrosion from chlorides and disinfection agents; furthermore, the all-metal specification facilitates compliance with material regulations in contact with potable water\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePetrochemical fluids and hydrocarbons\u003c\/strong\u003e — CF8M resists hydrocarbons and petroleum derivatives; however, for fluids with very high chlorides, verify compatibility with Cematic's technical team\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHVAC systems and industrial refrigeration\u003c\/strong\u003e — prevents refrigerant fluid return without relying on an elastomer that could deteriorate; likewise, the wafer design reduces the space required for installation\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the Swing Wafer Check Valve with Metal Seat\u003c\/h3\u003e\n\u003ch4\u003eChemical Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eswing wafer check valve with metal seat\u003c\/strong\u003e is suitable for systems handling aggressive chemical fluids or those incompatible with elastomers. The all-metal CF8M specification also ensures that no fluid-contacting component experiences chemical or thermal degradation. Consequently, it offers a longer service life than Viton-seated versions in environments with extremely aggressive fluids.\u003c\/p\u003e\n\u003ch4\u003ePotable Water and Treatment Systems\u003c\/h4\u003e\n\u003cp\u003eIn water distribution systems and treatment plants, this valve prevents backflow. It also protects system pumps from reverse flow. The SS316 also resists corrosion from chlorides and disinfection agents. Therefore, it is a durable alternative in pumping lines where stainless steel specification without elastomers is required.\u003c\/p\u003e\n\u003ch4\u003ePetrochemical Industry\u003c\/h4\u003e\n\u003cp\u003eIn installations with petroleum derivatives, CF8M also resists chemical attack from hydrocarbons. Likewise, the absence of an elastomeric seat eliminates the risk of seal degradation in fluids with solvents or aromatic compounds that could attack Viton. Therefore, this valve operates reliably in petrochemical lines where an all-metal specification is a requirement.\u003c\/p\u003e\n\u003ch4\u003eHVAC, Refrigeration, and Energy Systems\u003c\/h4\u003e\n\u003cp\u003eIn HVAC, refrigeration, and power plant systems, this valve also prevents fluid return during system shutdowns. Its compact wafer design also facilitates installation in lines with space constraints. Consequently, it is the correct option when unidirectional flow retention is required without elastomers in the valve seal.\u003c\/p\u003e\n\u003ch4\u003ePiping Engineering — Pump Protection\u003c\/h4\u003e\n\u003cp\u003eIn any pumping system, this valve also protects the pump from damage due to reverse flow during emergency shutdowns or electrical failures. The SS304 spring also ensures that the disc returns to the metal seat with stable closing force in each operation. Therefore, it is the standard protection component in discharge lines where an all-metal specification is required.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of check valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-check\"\u003echeck valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-check-wafer-disco-tipo-columpio-ss316-pcdss1.pdf?v=1759166737\" title=\"Check Valve with Swing Disc in Stainless Steel Technical Data Sheet\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #b12323;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"2\"","offer_id":51082196517177,"sku":"PCDSS110","price":7523.42,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":51082196549945,"sku":"PCDSS114","price":7850.44,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":51082196582713,"sku":"PCDSS118","price":16354.94,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-check-wafer-disco-oscilante-ss316-4_15e9ce7f-48ca-480b-aad7-5da5433df5d9.jpg?v=1759175647"},{"product_id":"valvula-mariposa-wafer-ss316-disco-recubierto-ptfe","title":"Wafer Butterfly Valve SS316 | PTFE Coated SS316 Disc | Greater Chemical Resistance","description":"\u003ch2\u003eSS316 Wafer Butterfly Valve — PTFE Coated Disc and PTFE Seat for Maximum Chemical Protection\u003c\/h2\u003e\n\n\u003cp\u003e\n  This SS316 wafer butterfly valve takes chemical protection a step further than the standard SS316 disc version: the disc features a \u003cstrong\u003ePTFE coating over its entire surface\u003c\/strong\u003e, completely eliminating contact between the disc's metal and the process fluid. In the open position, the disc is the only component remaining within the flow — with PTFE coating, no metallic part is exposed to the fluid, regardless of the level of chemical aggressiveness.\n\u003c\/p\u003e\n\u003cp\u003e\n  The combination of an SS316 body, PTFE-coated SS316 disc, and PTFE seat makes this valve the right choice when the fluid is aggressive enough to attack the SS316 of the disc in continuous service, but does not require the level of protection of an anti-corrosion valve with a full PFA liner.\n\u003c\/p\u003e\n\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody:\u003c\/strong\u003e CF8M Stainless Steel (cast equivalent of SS316)\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eDisc:\u003c\/strong\u003e SS316 Stainless Steel with full-surface PTFE coating — \u003cstrong\u003eno metal-fluid contact in any open position\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eSeat:\u003c\/strong\u003e PTFE — seals circumferentially with the coated disc upon closing\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eShaft \/ Stem:\u003c\/strong\u003e SS316 Stainless Steel with PTFE seals\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Wafer — between DIN PN10\/16 or ANSI 150 flanges\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eNominal Pressure:\u003c\/strong\u003e PN10 \/ PN16\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20 °C to +150 °C\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eAvailable Diameters:\u003c\/strong\u003e DN50 (2\") to DN600 (24\")\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eDesign Standard:\u003c\/strong\u003e EN 593\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eActuator Interface:\u003c\/strong\u003e ISO 5211\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Specify a PTFE Coated Disc Instead of a Standard SS316 Disc?\u003c\/h3\u003e\n\u003cp\u003e\n  The uncoated SS316 disc resists corrosion from most aqueous fluids. The PTFE coated disc is the right choice when:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003eThe fluid contains chloride concentrations that would cause pitting in the SS316 disc over time (seawater at elevated temperatures, concentrated brines)\u003c\/li\u003e\n\n  \u003cli\u003eThe fluid is a moderately-high concentration acid where SS316 would show generalized corrosion with prolonged contact\u003c\/li\u003e\n\n  \u003cli\u003eZero metallic contamination of the fluid is required — the PTFE coating ensures that no metallic ions from the disc contaminate the process\u003c\/li\u003e\n\n  \u003cli\u003eThe fluid is a moderate oxidant that would attack the SS316 disc in continuous open and close cycles\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eComparison of the Three SS316 Butterfly Valve Variants\u003c\/h3\u003e\n\u003ctable\u003e\n\n  \u003cthead\u003e\n\n    \u003ctr\u003e\n\n      \u003cth\u003eVariant\u003c\/th\u003e\n\n      \u003cth\u003eDisc\u003c\/th\u003e\n\n      \u003cth\u003eSeat\u003c\/th\u003e\n\n      \u003cth\u003eBest for\u003c\/th\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/thead\u003e\n\n  \u003ctbody\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eSS316 + EPDM\u003c\/td\u003e\n\n      \u003ctd\u003eUncoated SS316\u003c\/td\u003e\n\n      \u003ctd\u003eEPDM\u003c\/td\u003e\n\n      \u003ctd\u003eWater, HVAC, general services\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eSS316 + Standard PTFE Disc\u003c\/td\u003e\n\n      \u003ctd\u003eUncoated SS316\u003c\/td\u003e\n\n      \u003ctd\u003ePTFE\u003c\/td\u003e\n\n      \u003ctd\u003eDiluted acids and alkalis, higher temperature\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e\u003cstrong\u003eSS316 + Coated PTFE Disc ← This Product\u003c\/strong\u003e\u003c\/td\u003e\n\n      \u003ctd\u003e\u003cstrong\u003ePTFE Coated SS316\u003c\/strong\u003e\u003c\/td\u003e\n\n      \u003ctd\u003e\u003cstrong\u003ePTFE\u003c\/strong\u003e\u003c\/td\u003e\n\n      \u003ctd\u003e\u003cstrong\u003eFluids that attack SS316 disc — high chlorides, moderate acids, zero metallic contamination\u003c\/strong\u003e\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Fluids\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e✅ Sulfuric acid H₂SO₄ up to 40%\u003c\/li\u003e\n\n  \u003cli\u003e✅ Hydrochloric acid HCl up to 30%\u003c\/li\u003e\n\n  \u003cli\u003e✅ Nitric acid HNO₃ up to 30%\u003c\/li\u003e\n\n  \u003cli\u003e✅ Seawater and concentrated brines\u003c\/li\u003e\n\n  \u003cli\u003e✅ Sodium hypochlorite NaClO up to 15%\u003c\/li\u003e\n\n  \u003cli\u003e✅ Ferric chloride FeCl₃ — any concentration\u003c\/li\u003e\n\n  \u003cli\u003e✅ NaOH up to 40%\u003c\/li\u003e\n\n  \u003cli\u003e✅ Purified and demineralized water without metallic contamination\u003c\/li\u003e\n\n  \u003cli\u003e✅ Water treatment solutions with moderate oxidizers\u003c\/li\u003e\n\n  \u003cli\u003e⚠️ For HF, H₂SO₄ \u0026gt;70%, concentrated ClO₂: use \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA anti-corrosion valve →\u003c\/a\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Operation Versions\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eManual with lever:\u003c\/strong\u003e DN50 to DN200\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eManual with gear reducer:\u003c\/strong\u003e DN200 to DN600\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eWith pneumatic actuator:\u003c\/strong\u003e Single acting NC or NO, double acting. ISO 5211 + NAMUR.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eWith electric actuator:\u003c\/strong\u003e 24 VDC, 110 VAC, 220 VAC. ON\/OFF or modulating 4–20 mA.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  For the complete range of SS316 butterfly valves, see \u003ca href=\"\/en\/collections\/valvulas-mariposa-acero-inoxidable\"\u003estainless steel butterfly valves category →\u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Ficha Técnica de Válvula Mariposa Wafer en SS316 Disco y Asiento en Teflón Cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-mariposa-wafer-ss316-asiento-disco-ptfe-pmss11.pdf?v=1765218770\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2727;\"\u003e\u003cstrong\u003eData Sheet (Spanish)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ab2727;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/wafer-butterfly-vave-ss316-body-ptfe-seat-disc-pmss11.pdf?v=1778782440\" title=\"Wafer Buttefly Valve PTFE Disc and Seat - Data Sheet Cematic\" rel=\"noopener\" target=\"_blank\"\u003eData Sheet (English)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"2\"","offer_id":51205118427449,"sku":"PMSS1110","price":7328.72,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":51205118460217,"sku":"PMSS1114","price":10347.33,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":51205118492985,"sku":"PMSS1118","price":15519.65,"currency_code":"MXN","in_stock":true},{"title":"6\"","offer_id":51205118525753,"sku":"PMSS1122","price":24357.23,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-mariposa-wafer-acero-inoxidable-316-asiento-disco-ptfe.jpg?v=1759853296"},{"product_id":"valvula-bola-anticorrosiva-pfa-wcb-ansi-150","title":"WCB Anti-Corrosive Ball Valve | PFA Lined | ANSI 150 | Acids and Oxidizers","description":"\u003ch2\u003eCorrosion-Resistant Ball Valve — WCB Body with Integral PFA Lining, ANSI 150 Flange\u003c\/h2\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003ePFA-lined corrosion-resistant ball valve\u003c\/strong\u003e is the isolation solution for the most aggressive fluids in the chemical industry: hydrofluoric acid, concentrated hydrochloric acid, high-concentration sulfuric acid, chlorine dioxide, concentrated hydrogen peroxide, and any fluid that would destroy stainless steel, PVC, or non-fluorinated polymers in days or weeks. The \u003cstrong\u003ePFA (Perfluoroalkoxy)\u003c\/strong\u003e lining continuously and seamlessly covers absolutely all internal surfaces in contact with the fluid: body, cover, gland box, and ball with stem — all metal components are PFA-lined, leaving no metal surface exposed to the corrosive fluid.\n\u003c\/p\u003e\n\u003cp\u003e\n  The WCB carbon steel structure provides the mechanical strength to withstand ANSI 150 pressures (up to 290 psi \/ 20 bar), while the PFA acts as an impermeable chemical barrier between the metal and the fluid. Available in sizes from 1\" to 4\" with ANSI 150 flanges and ISO 5211 mounting pad for automation.\n\u003c\/p\u003e\n\n\u003ch3\u003ePFA — the strongest chemical barrier available in standard valves\u003c\/h3\u003e\n\u003cp\u003e\n  \u003cstrong\u003ePFA (Perfluoroalkoxy)\u003c\/strong\u003e is the fluoropolymer with the highest chemical resistance available for industrial valve linings. Its advantage over conventional PTFE is not in intrinsic chemical resistance — both are fluoropolymers with virtually universal resistance — but in how it is applied:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eInjection molded lining — no joints or porosities:\u003c\/strong\u003e PFA is applied in a molten state and molded directly onto the metal substrate, creating a continuous, perfectly adhered layer with no joint lines, seams, or porosities. The result is a completely impermeable barrier — the aggressive fluid cannot penetrate to the underlying metal even with prolonged service.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eIntegral coverage of all components:\u003c\/strong\u003e Unlike valves where only the body has a PTFE liner but the ball is exposed SS316, in this valve \u003cstrong\u003eall fluid-contacting components are PFA-lined\u003c\/strong\u003e: body (component 9), cover (component 12), gland box (component 7), and ball\/stem (component 11). There is no point where the fluid can reach the metal — in any open or closed position.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSemi-transparent — visual inspection possible:\u003c\/strong\u003e PFA is semi-transparent, which in many cases allows for visual inspection of the lining condition without disassembly — detecting blistering or delamination before it causes a leak.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eValve components — complete material table\u003c\/h3\u003e\n\u003ctable\u003e\n\n  \u003cthead\u003e\n\n    \u003ctr\u003e\n\n      \u003cth\u003eNo.\u003c\/th\u003e\n\n      \u003cth\u003eComponent\u003c\/th\u003e\n\n      \u003cth\u003eMaterial\u003c\/th\u003e\n\n      \u003cth\u003eFluid Contact\u003c\/th\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/thead\u003e\n\n  \u003ctbody\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e1\u003c\/td\u003e\n\n      \u003ctd\u003eNut\u003c\/td\u003e\n\n      \u003ctd\u003eA194 2H\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e2\u003c\/td\u003e\n\n      \u003ctd\u003eLever\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e3\u003c\/td\u003e\n\n      \u003ctd\u003eLock Plate\u003c\/td\u003e\n\n      \u003ctd\u003eSS304\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e4\u003c\/td\u003e\n\n      \u003ctd\u003eBody Bolt\u003c\/td\u003e\n\n      \u003ctd\u003eA193 B7\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e5\u003c\/td\u003e\n\n      \u003ctd\u003eGland Follower\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e6\u003c\/td\u003e\n\n      \u003ctd\u003ePacking\u003c\/td\u003e\n\n      \u003ctd\u003ePTFE\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e7\u003c\/td\u003e\n\n      \u003ctd\u003eGland Box\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB + PFA Lining\u003c\/td\u003e\n\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e8\u003c\/td\u003e\n\n      \u003ctd\u003eBody Bolt\u003c\/td\u003e\n\n      \u003ctd\u003eA193 B7\u003c\/td\u003e\n\n      \u003ctd\u003eNo\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e9\u003c\/td\u003e\n\n      \u003ctd\u003eBody\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB + PFA Lining\u003c\/td\u003e\n\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e10\u003c\/td\u003e\n\n      \u003ctd\u003eSeat\u003c\/td\u003e\n\n      \u003ctd\u003ePTFE\u003c\/td\u003e\n\n      \u003ctd\u003e✅ Yes — virgin PTFE\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e11\u003c\/td\u003e\n\n      \u003ctd\u003eBall \/ Stem\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB + PFA Lining\u003c\/td\u003e\n\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003e12\u003c\/td\u003e\n\n      \u003ctd\u003eCover\u003c\/td\u003e\n\n      \u003ctd\u003eA216 WCB + PFA Lining\u003c\/td\u003e\n\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003cp\u003e\n  \u003cstrong\u003eConclusion:\u003c\/strong\u003e The four fluid-contacting components (body, cover, gland box, and ball\/stem) are PFA-lined. The seat is virgin PTFE. \u003cstrong\u003eNo metal surface is exposed to the fluid under any operating condition.\u003c\/strong\u003e\n\u003c\/p\u003e\n\n\u003ch3\u003eWhen is the PFA corrosion-resistant ball valve the only correct option?\u003c\/h3\u003e\n\u003cp\u003e\n  Some fluids destroy all other valve alternatives on the market except PFA and PTFE. This valve is mandatory (not optional) when the fluid is:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eHydrofluoric acid (HF) — any concentration:\u003c\/strong\u003e HF is the most corrosive fluid in the chemical industry for metals and glass. SS316 would corrode in hours. PFA is one of the only materials resistant to HF at all concentrations. Applications: HF alkylation units in refineries, fluoride production, surface treatment.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eChlorine dioxide (ClO₂):\u003c\/strong\u003e The most aggressive oxidant in the paper industry. SS316 suffers severe pitting within weeks at bleaching concentrations. Continuous, seamless PFA lining is the correct solution.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSulfuric acid H₂SO₄ \u0026gt;50%:\u003c\/strong\u003e Concentrated H₂SO₄ attacks SS316 and PVC. PFA is compatible at any concentration up to boiling point.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eHydrochloric acid HCl \u0026gt;35%:\u003c\/strong\u003e At high concentrations and elevated temperatures, HCl attacks even SS316. PFA resists at all concentrations.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eHydrogen peroxide H₂O₂ \u0026gt;30%:\u003c\/strong\u003e Strong oxidant that degrades conventional elastomers and attacks SS316 at high concentrations.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eAqua regia (HNO₃ + HCl) and acid mixtures:\u003c\/strong\u003e The most aggressive mixtures in industrial chemistry — PFA is practically the only lining material that resists these combinations.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSX-EW cell electrolyte (H₂SO₄ + metal ions):\u003c\/strong\u003e Copper electrowinning electrolyte in mining contains 150–200 g\/L H₂SO₄ plus aggressive ions — incompatible with SS316.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eType:\u003c\/strong\u003e Quarter-turn floating ball\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody Design:\u003c\/strong\u003e Two-piece body\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e A216 WCB + integral PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBall \/ Stem:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eCover:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eGland Box:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eSeat:\u003c\/strong\u003e Virgin PTFE\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003ePacking:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody Bolts:\u003c\/strong\u003e A193 B7\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eConnection:\u003c\/strong\u003e ANSI 150 RF Flanges — ASME B16.10 Face-to-face\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eFlange Drilling:\u003c\/strong\u003e ASME B16.5\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eNominal Sizes:\u003c\/strong\u003e 1\" (DN25), 1½\" (DN40), 2\" (DN50), 3\" (DN80), 4\" (DN100)\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eNominal Pressure:\u003c\/strong\u003e ANSI 150 — up to 290 psi (20 bar) at 38 °C\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20 °C to +200 °C\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eActuator Mounting:\u003c\/strong\u003e ISO 5211\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eRecommended Flange Gasket:\u003c\/strong\u003e Virgin PTFE or spiral wound with PTFE spiral — never a fiber gasket that could be attacked by the aggressive fluid\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemical compatibility — most common fluids\u003c\/h3\u003e\n\u003ctable\u003e\n\n  \u003cthead\u003e\n\n    \u003ctr\u003e\n\n      \u003cth\u003eFluid\u003c\/th\u003e\n\n      \u003cth\u003eSS316\u003c\/th\u003e\n\n      \u003cth\u003ePVC\u003c\/th\u003e\n\n      \u003cth\u003ePFA Ball Valve ← This product\u003c\/th\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/thead\u003e\n\n  \u003ctbody\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHF — any concentration\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Hours\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Days\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eH₂SO₄ \u0026gt;50%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHCl \u0026gt;35%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️ Limit\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eClO₂ \u0026gt;5 g\/L\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Severe pitting\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eH₂O₂ \u0026gt;30%\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHNO₃ \u0026gt;65%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eAqua regia (HNO₃+HCl)\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eSX-EW Electrolyte H₂SO₄+Cu²⁺\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eNaOH up to 50%\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eLiquid Br₂\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eElemental Fluorine F₂\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌ No standard viable material\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003ch3\u003eAutomation in environments with aggressive acid vapors\u003c\/h3\u003e\n\u003cp\u003e\n  In installations with HF, concentrated HCl, H₂SO₄, and other strong acids, fluid vapors can reach the actuator and corrode its components — especially the anodized aluminum body of standard actuators. Specific considerations for these environments:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePneumatic actuator with stainless steel housing or epoxy coating:\u003c\/strong\u003e For environments with acid vapors, specify an actuator with SS316 housing or with high chemical resistance epoxy coating instead of standard anodized aluminum. Aluminum would corrode within weeks in the presence of HCl or HF vapors.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSingle-acting Normally Closed (NC):\u003c\/strong\u003e For highly hazardous fluids (HF, ClO₂, concentrated H₂SO₄), automatic shut-off in case of any control system failure is the standard safety requirement — the mechanical spring ensures closure without reliance on electronic components.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eATEX classified areas:\u003c\/strong\u003e In plants where acidic fluid vapors can create hazardous atmospheres, specify an ATEX solenoid. The pneumatic actuator itself does not require ATEX certification — only the control solenoid.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\u003ca href=\"\/en\/collections\/valvulas-bola-con-actuador-neumatico\"\u003eView ball valve assemblies with pneumatic actuator →\u003c\/a\u003e\u003c\/li\u003e\n\n  \u003cli\u003e\u003ca href=\"\/en\/collections\/valvulas-bola-con-actuador-electrico\"\u003eView ball valve assemblies with electric actuator →\u003c\/a\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eMain industries and applications\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eChemical industry — concentrated acids:\u003c\/strong\u003e Production and distribution of HF, H₂SO₄, HCl, HNO₃ and their mixtures in inorganic acid plants. The PFA ball valve is the standard isolation component in concentrated acid lines where SS316 and PVC fail.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePetrochemical — HF alkylation:\u003c\/strong\u003e Refinery alkylation units that use HF as a catalyst have hydrofluoric acid lines that require PFA-lined valves at all isolation points. There is no viable alternative for liquid HF service under pressure.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePulp and paper — ClO₂ bleaching:\u003c\/strong\u003e ECF bleaching stages with chlorine dioxide require PFA ball valves. SS316 fails due to pitting within weeks, and the corrosion-resistant butterfly valve with molded PTFE liner may have vulnerable penetration lines — the PFA ball valve with continuous lining is the reliable long-term solution.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eMining — SX-EW electrolyte:\u003c\/strong\u003e The copper electrowinning circuit uses 150–200 g\/L H₂SO₄ as electrolyte. PFA ball valves are the standard for electrolyte lines in electrolysis cells in Sonora, Chihuahua, and San Luis Potosí.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eWater treatment — ClO₂ disinfection:\u003c\/strong\u003e Modern water treatment plants that use chlorine dioxide as a disinfectant require PFA corrosion-resistant valves in the generation and distribution lines of pure ClO₂ before dilution.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSemiconductors and microelectronics:\u003c\/strong\u003e Acid etching processes with HF, HNO₃, and acid mixtures. PFA ball valves are the industry standard due to their purity (no metallic extractables that contaminate substrates) and resistance to process acids.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePharmaceutical — synthesis with strong acids:\u003c\/strong\u003e The synthesis of some active pharmaceutical ingredients (APIs) involves strong acids in reaction or purification stages. The PFA ball valve covers these services by combining acid resistance with material purity.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility verification — how Cematic advises\u003c\/h3\u003e\n\u003cp\u003e\n  Correct selection for a specific fluid requires knowing three simultaneous parameters: exact concentration, operating temperature, and presence of other components in solution. At Cematic, we verify the compatibility of the PFA lining for your specific fluid before quoting — and identify whether PFA is necessary or if a lower-cost alternative is sufficient for your specific process conditions. Share the fluid, concentration, and temperature via WhatsApp or to ventas@cematic.com and receive verification free of charge on the same business day.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  For the complete range of corrosion-resistant valves, see \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA corrosion-resistant ball valve category →\u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Ficha Técnica de Válvula de Bola Anticorrosiva con Revestimiento PFA Cematic\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-ansi-150-wcb-interior_pfa-pbfl.pdf?v=1777492876\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2929;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\"","offer_id":51323115241785,"sku":"PBFL106","price":8967.0,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\"","offer_id":51323115274553,"sku":"PBFL108","price":13450.5,"currency_code":"MXN","in_stock":true},{"title":"2\"","offer_id":51323115307321,"sku":"PBFL110","price":16140.6,"currency_code":"MXN","in_stock":true},{"title":"2-1\/2\"","offer_id":51323115340089,"sku":"PBFL112","price":18830.7,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":51323115372857,"sku":"PBFL114","price":28694.4,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":51323115405625,"sku":"PBFL118","price":34074.6,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-antocorrosiva-pfa-2-vias.jpg?v=1776460998"},{"product_id":"valvula-bola-3-vias-anticorrosiva-pfa-wcb-ansi-150","title":"3-Way WCB Anti-Corrosive Ball Valve | PFA Lined | ANSI 150 | Diverting and Mixing","description":"\u003ch2\u003e3-Way Anti-Corrosion Ball Valve — WCB Body with PFA Lining, ANSI 150 Flange, L and T Port\u003c\/h2\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003e3-way anti-corrosion ball valve with PFA lining\u003c\/strong\u003e combines two of the most demanding features of process engineering in a single component: the diversion and mixing functionality of the 3-way valve, and the total chemical resistance of PFA (Perfluoroalkoxy) lining for the industry's most aggressive fluids — hydrofluoric acid, concentrated sulfuric acid, chlorine dioxide, concentrated hydrochloric acid, and any fluid that would destroy stainless steel, PVC, or non-fluorinated polymers. With a single PFA-lined ball and a 90° turn, it diverts the flow of an aggressive acid between two alternative destinations (L-port) or mixes two corrosive streams into a single outlet (T-port) — without any metallic surface contacting the fluid in any operating position.\n\u003c\/p\u003e\n\u003cp\u003e\n  Available in diameters from 1\" to 4\" with ANSI 150 flanges and ISO 5211 mounting pad for automation with pneumatic or electric actuators.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhy a specifically anti-corrosion 3-way valve\u003c\/h3\u003e\n\u003cp\u003e\n  In aggressive chemical installations, the diversion and mixing of corrosive fluids is a frequent operational necessity — selection between two acid sources, product diversion between two storage tanks, mixing of two reagents before the addition point, reagent recirculation during startup. The conventional alternative of two coordinated 2-way valves is possible, but has specific disadvantages in aggressive acid installations:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eMore flanged connections:\u003c\/strong\u003e Every flanged connection in an HF or ClO₂ line is a potential leak point — the 3-way valve reduces the number of connections to three instead of four.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eRisk of period with both circuits open:\u003c\/strong\u003e If the control logic fails when switching between two 2-way valves, there may be a period where both circuits are simultaneously open — in aggressive acid lines, this can be a safety incident. The 3-way ball physically prevents this condition.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eMore anti-corrosion components:\u003c\/strong\u003e Two PFA anti-corrosion 2-way valves cost more than one 3-way valve of the same diameter, and require two actuators instead of one for automation.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eL-Port vs. T-Port — specify the correct one before ordering\u003c\/h3\u003e\n\n\u003ch4\u003eL-Port — Acid Diversion between Two Destinations\u003c\/h4\u003e\n\u003cp\u003e\n  The L-port ball always connects only two of the three ports — never all three simultaneously.\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003e0° Position:\u003c\/strong\u003e Port A connected to Port B. Port C blocked.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003e90° Position:\u003c\/strong\u003e Port A connected to Port C. Port B blocked.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications in corrosive fluid lines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003eAcid diversion between two alternative storage tanks\u003c\/li\u003e\n\n  \u003cli\u003eSelection between main acid source and backup source\u003c\/li\u003e\n\n  \u003cli\u003eBypass of filters or heat exchangers in aggressive acid lines\u003c\/li\u003e\n\n  \u003cli\u003eInstantaneous switching between two destinations without a period of both circuits open\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch4\u003eT-Port — Mixing Two Corrosive Streams\u003c\/h4\u003e\n\u003cp\u003e\n  The T-port ball in the central position connects all three ports simultaneously. In extreme positions, it connects only two.\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003e0° Position (central):\u003c\/strong\u003e Ports A, B and C connected — mixing two corrosive streams into a single outlet\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003e90° Position:\u003c\/strong\u003e Port A with Port B only\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003e-90° Position:\u003c\/strong\u003e Port A with Port C only\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications in corrosive fluid lines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003eMixing two acids before the dosing point\u003c\/li\u003e\n\n  \u003cli\u003eReagent recirculation to the source tank during process startup\u003c\/li\u003e\n\n  \u003cli\u003eAcid distribution to two addition points with simultaneous position at startup\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\n  \u003cem\u003eNot sure which port you need? It's the most frequent specification error in 3-way valves — consult us before ordering.\u003c\/em\u003e\n\u003c\/p\u003e\n\n\u003ch3\u003ePFA Lining — total coverage without exposed metal\u003c\/h3\u003e\n\u003cp\u003e\n  As with the 2-way PFA anti-corrosion ball valve, the PFA lining covers absolutely all internal surfaces in contact with the fluid:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003eBody:\u003c\/strong\u003e WCB + integral PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003eCover:\u003c\/strong\u003e WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003eGland packing:\u003c\/strong\u003e WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003eBall \/ Stem:\u003c\/strong\u003e WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003eSeat:\u003c\/strong\u003e Virgin PTFE\u003c\/li\u003e\n\n  \u003cli\u003e✅ \u003cstrong\u003ePacking:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\n  \u003cstrong\u003eNo metallic surface is exposed to the fluid in any open or closed position — neither at 0° nor at 90°.\u003c\/strong\u003e The fusion-applied PFA creates a continuous barrier without joints or porosity that prevents any contact between the aggressive fluid and the structural WCB metal.\n\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eType:\u003c\/strong\u003e Quarter-turn floating ball, 3-way\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody design:\u003c\/strong\u003e Two-piece body\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBall configuration:\u003c\/strong\u003e L-port (diversion\/selection) or T-port (mixing\/distribution) — specify when ordering\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBody material:\u003c\/strong\u003e A216 WCB + integral PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eBall \/ Stem:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eCover:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eGland packing:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eSeat:\u003c\/strong\u003e Virgin PTFE\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003ePacking:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eConnection:\u003c\/strong\u003e ANSI 150 RF flanges — face-to-face ASME B16.10\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eFlange drilling:\u003c\/strong\u003e ASME B16.5\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eNominal diameters:\u003c\/strong\u003e 1\" (DN25), 1½\" (DN40), 2\" (DN50), 3\" (DN80), 4\" (DN100)\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eNominal pressure:\u003c\/strong\u003e ANSI 150 — up to 290 psi (20 bar) at 38 °C\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -20 °C to +200 °C\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eActuator travel:\u003c\/strong\u003e 90° between extreme positions\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eActuator mounting:\u003c\/strong\u003e ISO 5211\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eRecommended flange gasket:\u003c\/strong\u003e Virgin PTFE — never a fiber gasket that could be attacked by the aggressive fluid\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible fluids\u003c\/h3\u003e\n\u003ctable\u003e\n\n  \u003cthead\u003e\n\n    \u003ctr\u003e\n\n      \u003cth\u003eFluid\u003c\/th\u003e\n\n      \u003cth\u003eSS316\u003c\/th\u003e\n\n      \u003cth\u003ePVC\u003c\/th\u003e\n\n      \u003cth\u003e3-Way PFA Ball Valve ← This product\u003c\/th\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/thead\u003e\n\n  \u003ctbody\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHF — any concentration\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Hours\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Days\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eH₂SO₄ \u0026gt;50%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHCl \u0026gt;35%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️ Limit\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eClO₂ \u0026gt;5 g\/L\u003c\/td\u003e\n\n      \u003ctd\u003e❌ Severe pitting\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eH₂O₂ \u0026gt;30%\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eHNO₃ \u0026gt;65%\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eAqua Regia (HNO₃+HCl)\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eSX-EW Electrolyte H₂SO₄+Cu²⁺\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅ First choice\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eNaOH up to 50%\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e⚠️\u003c\/td\u003e\n\n      \u003ctd\u003e✅\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n      \u003ctd\u003eBr₂ liquid\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e❌\u003c\/td\u003e\n\n      \u003ctd\u003e✅\u003c\/td\u003e\n\n    \u003c\/tr\u003e\n\n  \u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003ch3\u003eAutomation in environments with aggressive acid vapors\u003c\/h3\u003e\n\u003cp\u003e\n  In installations with HF, concentrated HCl, H₂SO₄, and other strong acids, fluid vapors can corrode actuator components. The single-acting NC pneumatic actuator is the standard safety configuration:\n\u003c\/p\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eNC pneumatic actuator with acid vapor resistant housing:\u003c\/strong\u003e Specify SS316 housing or high chemical resistance epoxy coating. Standard anodized aluminum would corrode within weeks in the presence of HCl or HF vapors.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eMandatory NC fail-safe for hazardous fluids:\u003c\/strong\u003e The mechanical spring ensures the valve closes in the event of any air supply or control signal failure — interrupting the aggressive acid flow without relying on electronic components. Define which of the two circuits (position A or position B) is the safe state in case of failure before ordering the actuator.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eATEX classified zones:\u003c\/strong\u003e In plants where acid vapors can create hazardous atmospheres, specify ATEX solenoid. The pneumatic actuator itself does not require ATEX certification — only the solenoid.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eDo not use in intermediate position:\u003c\/strong\u003e The 3-way valve operates between its two extreme positions (0° and 90°) only — operating in an intermediate position causes accelerated seat wear.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\u003ca href=\"\/en\/collections\/valvulas-bola-con-actuador-neumatico\"\u003eSee ball valve sets with pneumatic actuator →\u003c\/a\u003e\u003c\/li\u003e\n\n  \u003cli\u003e\u003ca href=\"\/en\/collections\/valvulas-bola-con-actuador-electrico\"\u003eSee ball valve sets with electric actuator →\u003c\/a\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eMain industries and applications\u003c\/h3\u003e\n\u003cul\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eChemical industry — concentrated acid diversion:\u003c\/strong\u003e Selection between two H₂SO₄, HCl or HNO₃ storage tanks, diversion between two acid product destinations, bypass of equipment in inorganic acid lines. The PFA 3-way anti-corrosion valve is the only viable diversion component for these fluids in diameters from 1\" to 4\".\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePetrochemical — HF alkylation:\u003c\/strong\u003e Diversion of hydrofluoric acid flows in refinery alkylation units — selection between alternative process routes, bypass of acid regeneration equipment. PFA lining is the only viable material for diverting pressurized liquid HF.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003ePulp and paper — ClO₂ distribution:\u003c\/strong\u003e Diversion of chlorine dioxide between bleaching stages, selection between alternative dosing lines. SS316 fails due to pitting within weeks under these conditions — the PFA 3-way ball is the reliable solution.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eMining — SX-EW electrolyte distribution:\u003c\/strong\u003e Diversion of concentrated H₂SO₄ electrolyte between electrodeposition cells, selection between distribution circuits in copper electrolysis plants.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eWater treatment — disinfection reagent distribution:\u003c\/strong\u003e Diversion of concentrated ClO₂ between alternative injection points, selection between dosing units in water treatment plants using chlorine dioxide as the primary disinfectant.\n  \u003c\/li\u003e\n\n  \u003cli\u003e\n\n    \u003cstrong\u003eSemiconductors — acid mixture distribution:\u003c\/strong\u003e Diversion of HF, HNO₃, and etching acid mixtures between alternative process chambers in integrated circuit and flat panel display manufacturing.\n  \u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility verification\u003c\/h3\u003e\n\u003cp\u003e\n  Correct selection requires knowing the exact concentration, temperature, and complete composition of the fluid. Share this data via WhatsApp or to ventas@cematic.com — we will verify PFA compatibility for your specific process at no cost on the same business day.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  For the complete range of anti-corrosion valves, see \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA anti-corrosion ball valve category →\u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-bola-3way-ansi-150-wcb-pfa-interior-pbtfl.pdf?v=1777492859\" title=\"Ficha Técnica de Válvula de Bola 3 Vías Anticorrosiva PFA Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2929;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\" \/ L","offer_id":51323059536185,"sku":"PBTFL106","price":21520.8,"currency_code":"MXN","in_stock":true},{"title":"1\" \/ T","offer_id":51323096990009,"sku":"PBTFL206","price":21520.8,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\" \/ L","offer_id":51323059568953,"sku":"PBTFL108","price":32729.55,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\" \/ T","offer_id":51323097022777,"sku":"PBTFL208","price":32729.55,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ L","offer_id":51323059601721,"sku":"PBTFL110","price":40351.5,"currency_code":"MXN","in_stock":true},{"title":"2\" \/ T","offer_id":51323097055545,"sku":"PBTFL210","price":40351.5,"currency_code":"MXN","in_stock":true},{"title":"2-1\/2\" \/ L","offer_id":51323059634489,"sku":"PBTFL112","price":47525.1,"currency_code":"MXN","in_stock":true},{"title":"2-1\/2\" \/ T","offer_id":51323097088313,"sku":"PBTFL212","price":47525.1,"currency_code":"MXN","in_stock":true},{"title":"3\" \/ L","offer_id":51323059667257,"sku":"PBTFL114","price":71736.0,"currency_code":"MXN","in_stock":true},{"title":"3\" \/ T","offer_id":51323097121081,"sku":"PBTFL214","price":71736.0,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ L","offer_id":51323059700025,"sku":"PBTFL118","price":85186.5,"currency_code":"MXN","in_stock":true},{"title":"4\" \/ T","offer_id":51323097153849,"sku":"PBTFL218","price":85186.5,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-bola-anticorrosiva-pfa-3-vias.jpg?v=1776461072"},{"product_id":"valvula-diafragma-anticorrosiva-pfa-wcb-ansi-150","title":"Corrosion-Resistant Diaphragm Valve WCB | PFA Lined | ANSI 150 | Acids \u0026 Chemicals","description":"\u003ch2\u003eCorrosion-Resistant Diaphragm Valve — WCB Body with PFA Lining, ANSI 150 Flange, ½\" to 4\"\u003c\/h2\u003e\u003cp\u003e  The \u003cstrong\u003ecorrosion-resistant diaphragm valve with PFA lining\u003c\/strong\u003e is fundamentally different from all ball, butterfly, and globe valves in the catalog in one decisive aspect: \u003cstrong\u003ethe only moving component that touches the fluid is the flexible diaphragm\u003c\/strong\u003e — there is no stem, ball, or obturator exposed to the aggressive fluid. The metal stem pushes the diaphragm from the outside against the body weir to close, and releases it to open, but never penetrates the fluid space. This complete separation between the operating mechanism and the aggressive fluid is the fundamental advantage of the diaphragm valve for services involving concentrated acids, strong oxidizers, and high-purity fluids.\u003c\/p\u003e\u003cp\u003e  The diaphragm is a two-layer construction: an \u003cstrong\u003eEPDM\u003c\/strong\u003e core that provides the elasticity and recovery force needed to repeatedly seal and open, with an outer face of \u003cstrong\u003ePFA (or FEP)\u003c\/strong\u003e which is the only surface in contact with the fluid — resistant to virtually all acids, alkalis, and oxidizers that would destroy any conventional elastomer. The WCB body with PFA internal lining completes the total protection of the metal.\u003c\/p\u003e\u003ch3\u003eWhy the diaphragm valve is different from the ball valve for aggressive fluids\u003c\/h3\u003e\u003cp\u003e  Both the PFA corrosion-resistant ball valve and the PFA corrosion-resistant diaphragm valve handle extreme corrosive fluids — but they have distinct technical advantages that determine when to use each:\u003c\/p\u003e\u003ctable\u003e  \u003cthead\u003e    \u003ctr\u003e      \u003cth\u003eCriterion\u003c\/th\u003e      \u003cth\u003ePFA Diaphragm Valve ← This product\u003c\/th\u003e      \u003cth\u003ePFA Corrosion-Resistant Ball Valve\u003c\/th\u003e    \u003c\/tr\u003e  \u003c\/thead\u003e  \u003ctbody\u003e    \u003ctr\u003e      \u003ctd\u003eStem in contact with fluid\u003c\/td\u003e      \u003ctd\u003e✅ Never — stem does not penetrate the fluid space\u003c\/td\u003e      \u003ctd\u003ePFA-lined stem but inside the body\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eFlow with fine suspended solids\u003c\/td\u003e      \u003ctd\u003e✅ Suitable — no cavities for solids to accumulate\u003c\/td\u003e      \u003ctd\u003e⚠️ Solids can accumulate in the ball cavity\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eNon-turbulent flow\u003c\/td\u003e      \u003ctd\u003e✅ Smooth Weir-type flow characteristic\u003c\/td\u003e      \u003ctd\u003eMore direct flow but with turbulence in partial opening\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003ePressure drop in open position\u003c\/td\u003e      \u003ctd\u003eHigher — the weir creates flow resistance\u003c\/td\u003e      \u003ctd\u003e✅ Lower — practically direct passage\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eProportional modulating control\u003c\/td\u003e      \u003ctd\u003e✅ Suitable — linear-type flow characteristic\u003c\/td\u003e      \u003ctd\u003eON\/OFF only in standard ball valve\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eMaximum working pressure\u003c\/td\u003e      \u003ctd\u003e290 psi (20 bar) — limited by diaphragm\u003c\/td\u003e      \u003ctd\u003e✅ 290 psi (20 bar) — similar in ANSI 150\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eHigh-purity fluids without metal contamination\u003c\/td\u003e      \u003ctd\u003e✅ Ideal — zero metal-fluid contact possible\u003c\/td\u003e      \u003ctd\u003e✅ Also suitable with integral PFA lining\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003eCrystallizing or sticky fluids\u003c\/td\u003e      \u003ctd\u003e✅ Smooth PFA prevents adhesion\u003c\/td\u003e      \u003ctd\u003e⚠️ Can accumulate in the ball cavity\u003c\/td\u003e    \u003c\/tr\u003e  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eThe double EPDM + PFA diaphragm — how it works\u003c\/h3\u003e\u003cp\u003e  The diaphragm is the technical heart of this valve. The two-layer construction solves the fundamental problem of single-material diaphragms:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e    \u003cstrong\u003eInner face (in contact with fluid) — PFA\/FEP:\u003c\/strong\u003e The PFA or FEP fluoropolymer on the diaphragm face that touches the fluid provides practically universal chemical resistance — compatible with HF, concentrated H₂SO₄, concentrated HCl, ClO₂, H₂O₂, and virtually any strong acid, alkali, or oxidizer. PFA does not degrade, swell, or release any compounds into the fluid — essential in high-purity applications.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eOuter face (in contact with mechanism) — EPDM:\u003c\/strong\u003e The EPDM core provides the elasticity and recovery force necessary for the diaphragm to seal tightly against the weir when closing and regain its shape correctly when opening. A pure PFA diaphragm would be too rigid for this flexing cycle — EPDM is the correct material for mechanical support.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eResult:\u003c\/strong\u003e A diaphragm that has the chemical resistance of PFA where it matters (the face touching the fluid) and the elasticity of EPDM where it is needed (the mechanical support for the flexing cycle).  \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWeir-type body — non-turbulent flow\u003c\/h3\u003e\u003cp\u003e  The \u003cstrong\u003eWeir-type\u003c\/strong\u003e diaphragm valve (raised weir) has a central protrusion in the body — the weir — against which the diaphragm rests when closing. The fluid passes beneath the weir and to the sides in the open position, generating a smooth, non-turbulent flow. Specific advantages of the Weir type:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eLaminar flow without turbulence:\u003c\/strong\u003e The flow profile does not generate cavitation or erosion in the diaphragm — significantly extends the service life of the diaphragm compared to through-way designs that generate direct turbulence on the diaphragm.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eShort diaphragm stroke:\u003c\/strong\u003e The diaphragm travels a short distance between open and closed positions — less material fatigue from flexing cycles.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNo significant dead zones:\u003c\/strong\u003e The Weir-type body has less residual fluid accumulation than the through-way type — advantageous for fluids that crystallize or solidify upon cooling.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eSuitable for modulating control:\u003c\/strong\u003e The Weir's flow characteristic is approximately linear — the diaphragm can be positioned at any point between open and closed to regulate flow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eValve components — complete material table\u003c\/h3\u003e\u003ctable\u003e  \u003cthead\u003e    \u003ctr\u003e      \u003cth\u003eNo.\u003c\/th\u003e      \u003cth\u003eComponent\u003c\/th\u003e      \u003cth\u003eMaterial\u003c\/th\u003e      \u003cth\u003eContact with fluid\u003c\/th\u003e    \u003c\/tr\u003e  \u003c\/thead\u003e  \u003ctbody\u003e    \u003ctr\u003e      \u003ctd\u003e1\u003c\/td\u003e      \u003ctd\u003eLocking screw\u003c\/td\u003e      \u003ctd\u003eA320 B8\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e2\u003c\/td\u003e      \u003ctd\u003eBody bolt\u003c\/td\u003e      \u003ctd\u003eA320 B8\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e3\u003c\/td\u003e      \u003ctd\u003eHandwheel\u003c\/td\u003e      \u003ctd\u003eA216 WCB\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e4\u003c\/td\u003e      \u003ctd\u003eSleeve\u003c\/td\u003e      \u003ctd\u003eSS304\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e5\u003c\/td\u003e      \u003ctd\u003eBonnet\u003c\/td\u003e      \u003ctd\u003eA216 WCB\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e6\u003c\/td\u003e      \u003ctd\u003eStem nut\u003c\/td\u003e      \u003ctd\u003eBrass\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e7\u003c\/td\u003e      \u003ctd\u003eStem\u003c\/td\u003e      \u003ctd\u003eSS420\u003c\/td\u003e      \u003ctd\u003eNo — does not penetrate the fluid space\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e8\u003c\/td\u003e      \u003ctd\u003eAdjustable pad\u003c\/td\u003e      \u003ctd\u003eSS304\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e9\u003c\/td\u003e      \u003ctd\u003eCompressor (Disc)\u003c\/td\u003e      \u003ctd\u003eA216 WCB\u003c\/td\u003e      \u003ctd\u003eNo — pushes the diaphragm from the outside\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e10\u003c\/td\u003e      \u003ctd\u003eRubber diaphragm\u003c\/td\u003e      \u003ctd\u003eEPDM\u003c\/td\u003e      \u003ctd\u003eOuter face — mechanical support\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e11\u003c\/td\u003e      \u003ctd\u003eDiaphragm\u003c\/td\u003e      \u003ctd\u003ePFA \/ FEP\u003c\/td\u003e      \u003ctd\u003e✅ Inner face — sole contact with aggressive fluid\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e12\u003c\/td\u003e      \u003ctd\u003eBody\u003c\/td\u003e      \u003ctd\u003eA216 WCB + PFA Lining\u003c\/td\u003e      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e13\u003c\/td\u003e      \u003ctd\u003eNut\u003c\/td\u003e      \u003ctd\u003eA194 2H\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e14\u003c\/td\u003e      \u003ctd\u003eFlat washer\u003c\/td\u003e      \u003ctd\u003e1045\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd\u003e15\u003c\/td\u003e      \u003ctd\u003eExternal hex screw\u003c\/td\u003e      \u003ctd\u003eA193 B7\u003c\/td\u003e      \u003ctd\u003eNo\u003c\/td\u003e    \u003c\/tr\u003e  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Weir Diaphragm (raised weir)\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDesign standard:\u003c\/strong\u003e MSS-SP-88\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eFace to face:\u003c\/strong\u003e EN 558-1\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eFlanges:\u003c\/strong\u003e ASME\/ANSI B16.5 — ANSI 150 RF\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eInspection and testing:\u003c\/strong\u003e API 598\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eBody material:\u003c\/strong\u003e A216 WCB + PFA interior lining\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDiaphragm:\u003c\/strong\u003e PFA\/FEP (inner face) + EPDM (support)\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eStem:\u003c\/strong\u003e SS420 — does not penetrate the fluid space\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eNominal diameters:\u003c\/strong\u003e ½\" (DN15), ¾\" (DN20), 1\" (DN25), 1¼\" (DN32), 1½\" (DN40), 2\" (DN50), 2½\" (DN65), 3\" (DN80), 4\" (DN100)\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 285–290 psi (19.6–20 bar) at 38 °C — reduces with temperature according to ASME B16.34\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -30 °C to +200 °C — verify specific fluid concentration and temperature\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eFlow characteristic:\u003c\/strong\u003e 1Cv = 1.167Kv — approximately linear flow characteristic\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eStandard operation:\u003c\/strong\u003e Manual with ergonomic handwheel\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eVacuum capability:\u003c\/strong\u003e Yes — suitable for vacuum service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChemical compatibility confirmed in technical sheet\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e✅ Hydrochloric acid HCl — any concentration\u003c\/li\u003e  \u003cli\u003e✅ Nitric acid HNO₃ — including concentrated\u003c\/li\u003e  \u003cli\u003e✅ Hydrofluoric acid HF — any concentration\u003c\/li\u003e  \u003cli\u003e✅ Liquid chlorine Cl₂\u003c\/li\u003e  \u003cli\u003e✅ Sulfuric acid H₂SO₄ — including concentrated\u003c\/li\u003e  \u003cli\u003e✅ Sodium hypochlorite NaClO — any concentration\u003c\/li\u003e  \u003cli\u003e✅ Peroxides (H₂O₂ and other oxidizers)\u003c\/li\u003e  \u003cli\u003e✅ Concentrated alkalis (NaOH, KOH)\u003c\/li\u003e  \u003cli\u003e✅ Highly aggressive organic solvents\u003c\/li\u003e  \u003cli\u003e✅ Extremely high purity fluids — no metal leaching\u003c\/li\u003e  \u003cli\u003e⚠️ Always verify specific process concentration and temperature — compatibility may vary under extreme conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMain applications\u003c\/h3\u003e\u003cul\u003e  \u003cli\u003e    \u003cstrong\u003eChemical and petrochemical industry — concentrated acids:\u003c\/strong\u003e Isolation and flow control in lines for HF, concentrated H₂SO₄, concentrated HCl, HNO₃, and their mixtures. The absence of a stem in the fluid eliminates the most frequent leak point in process valves with extreme corrosive fluids.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eChlorine, hypochlorite, and oxidizer processes:\u003c\/strong\u003e Distribution of liquid chlorine, high-concentration sodium hypochlorite, and peroxides in water treatment plants, paper bleaching, and chemical synthesis. The PFA diaphragm resists the aggressive oxidation of these fluids indefinitely.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003ePharmaceutical industry — high purity:\u003c\/strong\u003e Control of synthesis fluids, process solvents, and acidic solutions in pharmaceutical plants where metallic fluid contamination is unacceptable. PFA has practically zero leaching — it does not release any compounds into the fluid.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eSemiconductors and ultrapure water (UPW):\u003c\/strong\u003e Control of etching acid mixtures, ultrapure water distribution, and process fluids in integrated circuit and flat panel display manufacturing. PFA is the standard material in the semiconductor industry due to its purity and chemical resistance.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eMining — SX-EW and acid leaching:\u003c\/strong\u003e Control of concentrated H₂SO₄ electrolyte in copper electrowinning cells, acid leaching solutions, and flotation reagents. The PFA diaphragm valve resists aggressive electrolyte better than any valve with an exposed metallic stem.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eWater treatment — ClO₂ and chlorine disinfection:\u003c\/strong\u003e Control of chlorine dioxide, dissolved gaseous chlorine, and hypochlorite in water treatment plants using these disinfectants. PFA resists concentrations that would destroy SS316 in weeks.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eCrystallizing or sticky fluids:\u003c\/strong\u003e The smooth PFA inner lining prevents the adhesion of crystals and solids that would accumulate in the cavities of a ball or butterfly valve — facilitating cleaning and preventing valve blockage.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003ePaper, ink, pigment, and coating manufacturing:\u003c\/strong\u003e Control of bleaching solutions, acidic pigments, and aggressive solvent coatings where the smooth PFA surface prevents scaling and simplifies cleaning between batches.  \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDiaphragm valve automation\u003c\/h3\u003e\u003cp\u003e  The standard version includes manual operation with an ergonomic handwheel. For automation, the diaphragm valve is compatible with linear pneumatic actuators that replace the handwheel — the actuator pushes and releases the diaphragm with the same linear action as the manual handwheel. Specific considerations:\u003c\/p\u003e\u003cul\u003e  \u003cli\u003e    \u003cstrong\u003eNC linear pneumatic actuator:\u003c\/strong\u003e For hazardous fluids (HF, ClO₂, concentrated H₂SO₄), automatic spring closure upon air supply loss is the safety standard. The single-acting NC linear pneumatic actuator is the most common configuration.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eModulating control:\u003c\/strong\u003e The Weir's linear flow characteristic allows proportional flow control with a 4–20 mA electropneumatic positioner — the diaphragm valve is suitable for PID control loops in corrosive fluids where a globe valve would have chemical compatibility issues.  \u003c\/li\u003e  \u003cli\u003e    \u003cstrong\u003eActuator material in acidic vapors:\u003c\/strong\u003e Specify an actuator with an SS316 casing or a high chemical resistance epoxy coating — standard anodized aluminum would corrode in environments with HF or HCl vapors.  \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e  For the complete range of corrosion-resistant valves, see \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA corrosion-resistant valves category →\u003c\/a\u003e\u003c\/p\u003e\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-de-diafragma-ansi-150-wcb-interior_pfa-pbfl.pdf?v=1777492808\" title=\"Ficha Técnica de Diafragma Anticorrosiva Recubrimiento Interior PFA Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2929;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\"","offer_id":51323172094265,"sku":"PDFL102","price":6276.9,"currency_code":"MXN","in_stock":true},{"title":"1\"","offer_id":51323172127033,"sku":"PDFL106","price":7621.95,"currency_code":"MXN","in_stock":true},{"title":"1-1\/2\"","offer_id":51323172159801,"sku":"PDFL108","price":10760.4,"currency_code":"MXN","in_stock":true},{"title":"2\"","offer_id":51323172192569,"sku":"PDFL110","price":13002.15,"currency_code":"MXN","in_stock":true},{"title":"2-1\/2\"","offer_id":51323172225337,"sku":"PDFL112","price":18830.7,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":51323172258105,"sku":"PDFL114","price":27349.35,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":51323172290873,"sku":"PDFL118","price":32729.55,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-anticorrosiva-diafragma-pfa.jpg?v=1776461126"},{"product_id":"valvula-check-columpio-anticorrosiva-pfa-wcb-wafer","title":"Wafer Swing Check Valve Anti-Corrosive WCB | PFA Lined | Horizontal \u0026 Vertical | ½\" to 4\"","description":"\u003ch2\u003eCorrosion-Resistant Swing Check Valve — Wafer Type, WCB Body with PFA Lining, Horizontal and Vertical\u003c\/h2\u003e\n\nThe \u003cstrong\u003ecorrosion-resistant wafer-type swing check valve\u003c\/strong\u003e is the most versatile retention component for extreme corrosive fluids. Unlike gravity-actuated ball check valves, which require mandatory vertical installation, the wafer swing check functions correctly in \u003cstrong\u003ehorizontal and vertical pipelines with upward flow\u003c\/strong\u003e. Its wafer design — without its own flanges, installed directly between pipeline flanges — makes it the most compact and lightweight in the family of corrosion-resistant check valves, occupying minimal axial space in the line.\n\nThe body and disc are made of WCB with a continuous PFA lining — no metal surface is exposed to the fluid. The swing-type disc opens with the fluid flow in the correct direction and automatically closes when the flow stops or attempts to reverse, without a spring or external mechanism — only the disc's weight and fluid backpressure generate the closure.\n\n\u003ch3\u003eWafer Swing vs. Corrosion-Resistant Ball Check — When to Choose Each\u003c\/h3\u003e\n\nBoth valves handle extreme corrosive fluids with PFA lining but have critical operational differences:\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eCriterion\u003c\/th\u003e\n      \u003cth\u003ePFA Wafer Swing Check ← This product\u003c\/th\u003e\n      \u003cth\u003ePFA Ball Check (flanged)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHorizontal installation\u003c\/td\u003e\n      \u003ctd\u003e✅ Yes — first choice\u003c\/td\u003e\n      \u003ctd\u003e❌ No — vertical upward only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVertical upward installation\u003c\/td\u003e\n      \u003ctd\u003e✅ Yes\u003c\/td\u003e\n      \u003ctd\u003e✅ Yes — mandatory\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection format\u003c\/td\u003e\n      \u003ctd\u003e✅ Wafer — between flanges, no body of its own\u003c\/td\u003e\n      \u003ctd\u003eFlanged — with its own flanges\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAxial space required\u003c\/td\u003e\n      \u003ctd\u003e✅ Minimum — compact wafer design\u003c\/td\u003e\n      \u003ctd\u003eGreater — flanged body with ASME face-to-face\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eClosing mechanism\u003c\/td\u003e\n      \u003ctd\u003eSwing disc — closes by weight and backpressure\u003c\/td\u003e\n      \u003ctd\u003ePTFE ball — drops by gravity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eClosing speed\u003c\/td\u003e\n      \u003ctd\u003eFast — disc pivots on a hinge\u003c\/td\u003e\n      \u003ctd\u003e✅ Immediate — ball drops instantly\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eParticle tolerance\u003c\/td\u003e\n      \u003ctd\u003eMedium — particles can prevent disc closure\u003c\/td\u003e\n      \u003ctd\u003e✅ Greater — floating ball tolerates fine solids\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCrystallizing fluids\u003c\/td\u003e\n      \u003ctd\u003e⚠️ Crystals can adhere to the disc seat\u003c\/td\u003e\n      \u003ctd\u003e✅ Greater — self-cleaning rotating ball\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eOperating Principle — Springless Swing\u003c\/h3\u003e\n\nThe disc of the swing check valve is articulated on a hinge at the top of the body. It operates in two states:\n\n*     \u003cstrong\u003eFlow in correct direction — open disc:\u003c\/strong\u003e Fluid pressure pushes the disc backward, rotating it on the hinge to the open position. The disc remains open as long as the flow maintains its direction and speed — without any active component to keep it open.\n*     \u003cstrong\u003eStopped flow or backpressure — closed disc:\u003c\/strong\u003e When flow stops or backpressure is generated, the disc falls by its own weight, and backpressure pushes it back against the body seat, sealing the passage. Closure is silent and without abrupt impact — closing speed is modulated by the disc's weight and hinge geometry.\n\n\u003cstrong\u003eSpringless:\u003c\/strong\u003e The absence of a spring eliminates the component most susceptible to corrosion and fatigue in conventional check valves. In aggressive fluids that would attack a metallic stainless steel spring in weeks or months, the springless swing check provides significantly longer service life.\n\n\u003ch3\u003eWafer Construction — Installation Advantages\u003c\/h3\u003e\n\nThe wafer format is the same concept as the wafer butterfly valve: the valve is installed compressed between two pipeline flanges, secured by the flange connection bolts. It has no own flanges — the valve body is the connecting element. Specific advantages in aggressive chemical installations:\n\n* \u003cstrong\u003eMinimum axial space:\u003c\/strong\u003e The wafer's face-to-face dimension is the shortest of all check valve types — ideal for installations with limited space between equipment.\n* \u003cstrong\u003eLighter weight:\u003c\/strong\u003e Without its own flanges, the wafer weighs significantly less than the equivalent flanged check valve — an advantage in elevated installations or in structures with load limitations.\n* \u003cstrong\u003eFewer flanged connections:\u003c\/strong\u003e By installing between existing pipeline flanges, it does not add additional connections to the line — each flanged connection in an aggressive acid line is a potential leak point.\n* \u003cstrong\u003eLower installation cost:\u003c\/strong\u003e No own flanges to bolt — the wafer is installed in minutes between pipeline flanges with existing bolts.\n\n\u003ch3\u003eValve Components\u003c\/h3\u003e\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eNo.\u003c\/th\u003e\n      \u003cth\u003eComponent\u003c\/th\u003e\n      \u003cth\u003eMaterial\u003c\/th\u003e\n      \u003cth\u003eFluid Contact\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1\u003c\/td\u003e\n      \u003ctd\u003eBody\u003c\/td\u003e\n      \u003ctd\u003eA216 WCB + PFA lining\u003c\/td\u003e\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2\u003c\/td\u003e\n      \u003ctd\u003eDisc\u003c\/td\u003e\n      \u003ctd\u003eA216 WCB + PFA lining\u003c\/td\u003e\n      \u003ctd\u003e✅ Yes — PFA lined\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3\u003c\/td\u003e\n      \u003ctd\u003eLining material\u003c\/td\u003e\n      \u003ctd\u003ePFA\u003c\/td\u003e\n      \u003ctd\u003e✅ Continuous chemical barrier\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n      \u003ctd\u003eBolt\u003c\/td\u003e\n      \u003ctd\u003eA193 B7\u003c\/td\u003e\n      \u003ctd\u003eNo\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cstrong\u003ePFA-lined body and disc — no metallic surface exposed to the fluid in any open or closed position.\u003c\/strong\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wafer swing check valve — installation between flanges\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign Standard:\u003c\/strong\u003e ASME B16.34\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFace to face:\u003c\/strong\u003e ASME B16.10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlanges:\u003c\/strong\u003e Class 150LB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInspection and Testing:\u003c\/strong\u003e API 598\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Material:\u003c\/strong\u003e A216 WCB + PFA lining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Lining:\u003c\/strong\u003e PFA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBolts:\u003c\/strong\u003e A193 B7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal diameters in stock:\u003c\/strong\u003e ½\", ¾\", 1\", 1¼\", 1½\", 2\", 2½\", 3\", 4\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameters on request:\u003c\/strong\u003e 5\", 6\", 8\", 10\", 12\", 14\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e PN16 (232 psi \/ 16 bar)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Temperature:\u003c\/strong\u003e -20 °C to +200 °C — verify concentration and temperature of specific fluid\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Horizontal or vertical with upward flow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e By disc weight and backpressure — springless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVacuum Capacity:\u003c\/strong\u003e Up to 0.1 mbar according to pressure-temperature curve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePressure-Temperature Curve\u003c\/h3\u003e\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eTemperature\u003c\/th\u003e\n      \u003cth\u003eApprox. max pressure (PFA)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e-20 °C to +50 °C\u003c\/td\u003e\n      \u003ctd\u003e~15–16 bar\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e100 °C\u003c\/td\u003e\n      \u003ctd\u003e~12–13 bar\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e150 °C\u003c\/td\u003e\n      \u003ctd\u003e~6–7 bar\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e180 °C\u003c\/td\u003e\n      \u003ctd\u003e~6 bar\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e200 °C\u003c\/td\u003e\n      \u003ctd\u003e~6 bar\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eApproximate values according to datasheet curve. Verify official curve for final design.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eChemical Compatibility\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e✅ Hydrochloric acid HCl — any concentration\u003c\/li\u003e\n  \u003cli\u003e✅ Nitric acid HNO₃ — including concentrated\u003c\/li\u003e\n  \u003cli\u003e✅ Hydrofluoric acid HF — any concentration\u003c\/li\u003e\n  \u003cli\u003e✅ Liquid chlorine Cl₂\u003c\/li\u003e\n  \u003cli\u003e✅ Sulfuric acid H₂SO₄ — including concentrated\u003c\/li\u003e\n  \u003cli\u003e✅ Sodium hypochlorite NaClO\u003c\/li\u003e\n  \u003cli\u003e✅ Concentrated alkalis (NaOH, KOH)\u003c\/li\u003e\n  \u003cli\u003e✅ Aggressive organic solvents\u003c\/li\u003e\n  \u003cli\u003e✅ High-purity fluids — no metallic leaching\u003c\/li\u003e\n  \u003cli\u003e⚠️ Fluids with solid particles: PFA ball check is more suitable — particles can prevent tight closure of the swing disc\u003c\/li\u003e\n  \u003cli\u003e⚠️ Always verify specific process concentration and temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMain Applications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eReflux prevention in horizontal acid lines:\u003c\/strong\u003e The most frequent application and the main differentiator compared to the ball check. Any horizontal process line with HF, H₂SO₄, HCl, HNO₃ or ClO₂ requiring retention without reflux — the PFA wafer swing check is the first choice due to its compatibility with horizontal installation.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003ePump protection in corrosive lines:\u003c\/strong\u003e Installed at the discharge of pumps handling corrosive fluids, the swing check prevents aggressive acid from returning to the pump when it stops — protecting the pump's seals and internal components from return water hammer.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eChemical and petrochemical industry:\u003c\/strong\u003e Retention in transport, dosing, and recirculation lines for mineral acids, strong alkalis, and aggressive solvents. The wafer format minimizes the number of flanged connections in the line — critical in acid installations where each joint is a potential leak point.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eMining — acid leaching and SX-EW:\u003c\/strong\u003e Retention in H₂SO₄ leaching circuits and in copper electrodeposition electrolyte lines. The wafer format is especially valued in these installations where space between equipment is limited and the weight of components in metal structures is relevant.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eWater treatment — aggressive reagent dosing:\u003c\/strong\u003e Retention in dosing lines for liquid chlorine, concentrated hypochlorite, and pH adjustment acids. Horizontal installation is possible — an advantage in plants where dosing lines run in horizontal collectors.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003ePharmaceutical and semiconductors:\u003c\/strong\u003e Prevention of cross-contamination between aggressive process fluid lines. PFA does not release extractables into the fluid — essential in high-purity processes where metallic contamination is unacceptable.\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003cstrong\u003eProtection and safety circuits:\u003c\/strong\u003e Prevention of unwanted mixing between two incompatible reagent lines — if both lines converge at one point, the corrosion-resistant check valve in each line ensures that no reagent can flow back into the incompatible reagent line.\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor the complete range of corrosion-resistant valves, see \u003ca href=\"\/en\/collections\/valvulas-de-bola-anticorrosivas-interiores-de-pfa\"\u003ePFA corrosion-resistant valve category →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-check-wafer-columpio-anticorrosiva-wcb-pfa-pcdfl.pdf?v=1777579579\" title=\"Ficha Técnica de Válvula Check Tipo Columpio Anticorrosiva PFA Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #b72222;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\"","offer_id":51432693137721,"sku":"PCDFL06","price":5828.55,"currency_code":"MXN","in_stock":false},{"title":"1 1\/2\"","offer_id":51432693170489,"sku":"PCDFL08","price":6276.9,"currency_code":"MXN","in_stock":false},{"title":"2\"","offer_id":51432693203257,"sku":"PCDFL10","price":7621.95,"currency_code":"MXN","in_stock":false},{"title":"2 1\/2\"","offer_id":51432693236025,"sku":"PCDFL12","price":10312.05,"currency_code":"MXN","in_stock":false},{"title":"3\"","offer_id":51432693268793,"sku":"PCDFL14","price":12553.8,"currency_code":"MXN","in_stock":false},{"title":"4\"","offer_id":51432693301561,"sku":"PCDFL18","price":17934.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-check-wafer-wcb-pfa-4-150lb.jpg?v=1781134289"},{"product_id":"valvula-de-diafragma-higienica-clamp-ss316l","title":"Sanitary Diaphragm Valve Clamp | SS316L | EPDM+PTFE | CIP\/SIP","description":"\u003ch2\u003eClamp SS316L Hygienic Diaphragm Valve — High Purity\u003c\/h2\u003e\n\u003cp\u003eCematic's clamp \u003cstrong\u003ehygienic diaphragm valve\u003c\/strong\u003e is the standard solution for high-purity processes where cross-contamination is unacceptable. It is manufactured from 316L stainless steel with an interior mirror-polished finish of Ra ≤ 0.2 µm.\u003c\/p\u003e\n\u003cp\u003eThis ensures zero external leaks and maximum cleanliness in each cycle. Therefore, it is the preferred choice in the pharmaceutical, food, and biotechnology industries.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional valves, the diaphragm acts as a hermetic seal between the fluid and the mechanism. This eliminates dynamic packing and, likewise, reduces the risk of product contamination.\u003c\/p\u003e\n\u003cp\u003eThe 3A clamp connection also allows for quick disassembly for maintenance or inspection without special tools.\u003c\/p\u003e\n\u003ch3\u003eWhy choose Cematic's hygienic diaphragm valve\u003c\/h3\u003e\n\u003cp\u003eFirstly, its mirror-polished finish of Ra ≤ 0.2 µm prevents residue accumulation. Consequently, CIP and SIP processes are more efficient than with valves with an Ra ≤ 0.8 µm finish.\u003c\/p\u003e\n\u003cp\u003eOn the other hand, 316L stainless steel offers greater resistance to chlorides and corrosive agents than SS304. It is also the preferred material in demanding CIP protocols. Therefore, it is the preferred material in environments with demanding cleaning protocols.\u003c\/p\u003e\n\u003cp\u003eIts manual operation also offers direct, precise, and reliable flow control. However, it is also available with a pneumatic actuator for integration into automated systems. In any case, the assembly is delivered tested and ready for installation.\u003c\/p\u003e\n\u003ch3\u003eOperating principle — Hygienic Diaphragm Valve\u003c\/h3\u003e\n\u003cp\u003eThe diaphragm is a flexible EPDM + PTFE membrane that separates the fluid zone from the sealing mechanism zone. When opened, the diaphragm lifts, allowing bidirectional fluid flow.\u003c\/p\u003e\n\u003cp\u003eWhen closed, on the other hand, the diaphragm compresses against the body seat and blocks the flow. In this way, the fluid never comes into contact with dynamic packing, lubricants, or moving metal parts.\u003c\/p\u003e\n\u003cp\u003eThis total separation also eliminates dead zones where product could accumulate between cycles. Therefore, the \u003cstrong\u003ehygienic diaphragm valve\u003c\/strong\u003e is the correct component when aseptic fluid integrity is a non-negotiable process requirement.\u003c\/p\u003e\n\u003ch3\u003eConstruction materials\u003c\/h3\u003e\n\u003cp\u003eThe body is made of 316L stainless steel, which is the standard material in high-purity applications. Its molybdenum content also offers greater resistance to chlorides and CIP agents than SS304. The diaphragm is made of EPDM + PTFE, which is the correct combination for aseptic processes.\u003c\/p\u003e\n\u003cp\u003eEPDM provides the necessary elasticity for hermetic sealing. PTFE also coats the face in contact with the fluid, ensuring total chemical inertness. Finally, the interior finish of Ra ≤ 0.2 µm is the most demanding in the family, which eliminates any roughness where microorganisms or residues could accumulate.\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eValve type\u003c\/td\u003e\n\n\u003ctd\u003eDiaphragm | Bidirectional\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody material\u003c\/td\u003e\n\n\u003ctd\u003e316L Stainless Steel (SS316L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDiaphragm \/ Membrane\u003c\/td\u003e\n\n\u003ctd\u003eEPDM + PTFE\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eClamp 3A (quick coupling)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInterior finish\u003c\/td\u003e\n\n\u003ctd\u003eRa ≤ 0.2 µm (mirror polished)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking pressure\u003c\/td\u003e\n\n\u003ctd\u003e0 to 10 bar\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum temperature\u003c\/td\u003e\n\n\u003ctd\u003e-10 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum temperature\u003c\/td\u003e\n\n\u003ctd\u003e110 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eStandard control\u003c\/td\u003e\n\n\u003ctd\u003eManual\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOptional control\u003c\/td\u003e\n\n\u003ctd\u003eManual only\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCIP\/SIP compatible\u003c\/td\u003e\n\n\u003ctd\u003eYes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eFluid compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003ehygienic diaphragm valve\u003c\/strong\u003e with an EPDM + PTFE diaphragm is compatible with the most demanding fluids in the sanitary industry. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePurified water and water for injection (WFI)\u003c\/strong\u003e — SS316L does not contribute metal ions; therefore, it is the standard material in high-purity pharmaceutical water distribution systems.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCulture media, vaccines, and biological products\u003c\/strong\u003e — total fluid-mechanism separation is the fundamental requirement in biotechnology; likewise, PTFE on the diaphragm's face does not cause chemical contamination of the product.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eViscous food fluids — yogurt, creams, syrups, purees\u003c\/strong\u003e — the diaphragm handles viscous fluids without retention in cavities; additionally, the smooth and bidirectional opening prevents phase separation in emulsified products.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCIP agents — caustic soda, nitric acid, peracetic acid up to 110 °C\u003c\/strong\u003e — PTFE is inert to most common CIP agents; however, verify concentration and temperature with the Cematic technical team for extreme conditions.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh-purity and corrosive chemical fluids\u003c\/strong\u003e — PTFE resists a wide range of acids, bases, and solvents; for extremely aggressive fluids or above 110 °C, consult with the Cematic technical team.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the hygienic diaphragm valve\u003c\/h3\u003e\n\u003ch4\u003ePharmaceutical and Biotechnology Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003ehygienic diaphragm valve\u003c\/strong\u003e is the standard component in production lines for vaccines, serums, and culture media. The total separation between the fluid and the mechanism also ensures process sterility in each cycle.\u003c\/p\u003e\n\u003cp\u003eTherefore, it is the required valve in aseptic piping systems where the product must remain sterile from production to packaging.\u003c\/p\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eIn the processing of dairy products, beer, juices, and carbonated beverages, this valve ensures that the fluid does not touch lubricants. Likewise, it also does not come into contact with moving parts.\u003c\/p\u003e\n\u003cp\u003eIt is also the correct option for dosing additives and viscous syrups, as the diaphragm prevents product retention in internal cavities. Consequently, batch changes are cleaner and faster.\u003c\/p\u003e\n\u003ch4\u003eCIP\/SIP Cleaning and Sterilization Systems\u003c\/h4\u003e\n\u003cp\u003eIn cleaning and sterilization circuits, this valve also acts as a critical flow control component. Its Ra ≤ 0.2 µm finish also ensures that cleaning agents reach all surfaces without shadow zones.\u003c\/p\u003e\n\u003cp\u003eTherefore, CIP cycles are more efficient. SIP cycles also completely sterilize the fluid zone up to 110 °C without disassembling the valve.\u003c\/p\u003e\n\u003ch4\u003eCosmetics and Personal Care Industry\u003c\/h4\u003e\n\u003cp\u003eIn production lines for creams, lotions, and shampoos, the total separation between fluid and mechanism also prevents contamination with lubricants.\u003c\/p\u003e\n\u003cp\u003eTherefore, it is the correct component in lines where viscous fluids or sensitive active ingredients are handled. Likewise, the 3A clamp disassembly facilitates quick diaphragm changes between formulations without special tools.\u003c\/p\u003e\n\u003ch4\u003eFine Chemical Industries\u003c\/h4\u003e\n\u003cp\u003eIn the handling of corrosive chemicals, this valve prevents cross-contamination. The diaphragm's hermetic seal also prevents leaks at all times. Additionally, PTFE on the fluid contact face resists most corrosive agents within the working temperature range.\u003c\/p\u003e\n\u003cp\u003eConsequently, it is the correct option in fine chemical plants where fluid purity is as important as installation safety.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of hygienic valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-higienicas\"\u003ehygienic valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Technical Data Sheet for Cematic SS316L Clamp Hygienic Diaphragm Valve\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-diafragma-cuerpo-ss316l-manual.pdf?v=1766010821\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2121;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\"","offer_id":51456409698617,"sku":"PDCE0102","price":2031.03,"currency_code":"MXN","in_stock":true},{"title":"3\/4\"","offer_id":51456409731385,"sku":"PDCE0104","price":2664.1,"currency_code":"MXN","in_stock":false},{"title":"1\"","offer_id":51456409764153,"sku":"PDCE0106","price":4192.97,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\"","offer_id":51456409796921,"sku":"PDCE0108","price":6039.27,"currency_code":"MXN","in_stock":true},{"title":"2\"","offer_id":51456409829689,"sku":"PDCE0110","price":7120.69,"currency_code":"MXN","in_stock":true},{"title":"2 1\/2\"","offer_id":51456409862457,"sku":"PDCE0112","price":19121.23,"currency_code":"MXN","in_stock":true},{"title":"3\"","offer_id":51456409895225,"sku":"PDCE0114","price":47076.75,"currency_code":"MXN","in_stock":true},{"title":"4\"","offer_id":51456409927993,"sku":"PDCE0116","price":62900.81,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/Valvula_higienica_de_diafragma_clamp_acero_inoxidable_316L_dn25.jpg?v=1774457232"},{"product_id":"valvula-de-diafragma-higienica-clamp-actuador-neumatico","title":"Sanitary Diaphragm Valve Clamp with Pneumatic Actuator | SS316L | EPDM+PTFE","description":"\u003ch2\u003eClamp Sanitary Diaphragm Valve with Pneumatic Actuator — SS316L, EPDM+PTFE\u003c\/h2\u003e\n\u003cp\u003eCematic's \u003cstrong\u003esanitary diaphragm valve with pneumatic actuator\u003c\/strong\u003e in 316L stainless steel is the standard component for industrial processes that demand hygiene, sterility, and automated control in a single piece of equipment.\u003c\/p\u003e\n\u003cp\u003eThanks to its EPDM+PTFE diaphragm, it ensures total separation between the fluid and the mechanical components. Therefore, the fluid never comes into contact with the actuator or with lubricated moving parts. For this reason, it is the preferred solution in the pharmaceutical, food, and biotechnology industries where cross-contamination is unacceptable.\u003c\/p\u003e\n\u003cp\u003eUnlike the manual version, the integrated pneumatic actuator also ensures efficient, consistent, and repeatable operation in each cycle. Consequently, it is the right choice for automated process lines that demand precise control with the highest hygiene standards.\u003c\/p\u003e\n\u003ch3\u003eOperating Principle — Sanitary Diaphragm Valve with Pneumatic Actuator\u003c\/h3\u003e\n\u003cp\u003eThe EPDM+PTFE diaphragm completely separates the fluid zone from the actuator zone. Upon receiving a pneumatic signal, the actuator compresses or releases the diaphragm to open or close the fluid flow.\u003c\/p\u003e\n\u003cp\u003eTherefore, operation is bidirectional and without contact between the fluid and lubricated parts. In this way, the pneumatic actuator executes the opening and closing cycle with a fast and repeatable response, without manual intervention.\u003c\/p\u003e\n\u003cp\u003eIts SS316L body with an internal finish of Ra ≤ 0.2 µm, moreover, has no internal cavities or dead zones where product could accumulate. Consequently, CIP and SIP processes are more efficient, and batch changes are faster and safer.\u003c\/p\u003e\n\u003ch3\u003eBenefits of the pneumatic actuator in hygienic applications\u003c\/h3\u003e\n\u003cp\u003eThe integration of the pneumatic actuator in this \u003cstrong\u003esanitary diaphragm valve\u003c\/strong\u003e offers specific advantages over the manual version in automated processes:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRemote operation without human intervention:\u003c\/strong\u003e The pneumatic actuator eliminates the need to operate the valve manually, thus reducing the risk of contamination from operator contact with the process line.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eRepeatability in each cycle:\u003c\/strong\u003e The pneumatic actuator also opens and closes with the same force and speed in each operation. Consequently, it guarantees process consistency in GMP-validated production lines.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eIntegration with PLC and control systems:\u003c\/strong\u003e The pneumatic signal is controlled by a solenoid, so the valve integrates directly into SCADA, PLC, or DCS systems without additional modifications.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eResponse speed:\u003c\/strong\u003e Pneumatic actuation, therefore, is faster than electric for frequent opening and closing cycles. Likewise, it is safer in classified areas where electricity poses a risk.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction Materials\u003c\/h3\u003e\n\u003cp\u003eThe body is made of 316L stainless steel, which is the standard material in high-purity applications. Its molybdenum content also offers greater resistance to chlorides and CIP agents than SS304. The diaphragm is made of EPDM+PTFE, which is the correct combination for aseptic processes.\u003c\/p\u003e\n\u003cp\u003eEPDM provides the necessary elasticity for hermetic sealing. PTFE also coats the face in contact with the fluid, ensuring total chemical inertness. The internal finish Ra ≤ 0.2 µm, finally, is the most demanding standard of Cematic's hygienic family. This eliminates roughness where microorganisms or residues could accumulate.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\n\u003ctd\u003eDiaphragm | Bidirectional\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\n\u003ctd\u003eStainless Steel 316L (SS316L)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDiaphragm \/ Membrane\u003c\/td\u003e\n\n\u003ctd\u003eEPDM + PTFE\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003eClamp 3A (quick coupling)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eInternal Finish\u003c\/td\u003e\n\n\u003ctd\u003eRa ≤ 0.2 µm (mirror polished)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWorking Pressure\u003c\/td\u003e\n\n\u003ctd\u003e0 to 10 bar\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMinimum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e-10 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMaximum Temperature\u003c\/td\u003e\n\n\u003ctd\u003e110 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eActuator\u003c\/td\u003e\n\n\u003ctd\u003eIntegrated Pneumatic\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCIP\/SIP Compatible\u003c\/td\u003e\n\n\u003ctd\u003eYes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003ch3\u003eFluid Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003esanitary diaphragm valve with pneumatic actuator\u003c\/strong\u003e is compatible with the most demanding fluids in the sanitary industry. The main groups are described below:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003ePurified water and water for injection (WFI)\u003c\/strong\u003e — SS316L does not contribute metal ions; therefore, it is the standard material in high-purity pharmaceutical water distribution systems.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCulture media, vaccines, and biological products\u003c\/strong\u003e — total fluid-actuator separation is the fundamental requirement in biotechnology; likewise, PTFE on the diaphragm face does not cause chemical contamination of the product.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eViscous food fluids — yogurt, creams, syrups, purees\u003c\/strong\u003e — the diaphragm also prevents product retention in internal cavities and facilitates batch changes.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCIP agents — caustic soda, nitric acid, peracetic acid up to 110 °C\u003c\/strong\u003e — PTFE is inert to most common CIP agents; however, verify concentration and temperature with Cematic's technical team for extreme conditions.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eHigh-purity and corrosive chemical fluids\u003c\/strong\u003e — PTFE resists a wide range of acids, bases, and solvents within the temperature range; however, for fluids above 110 °C or extremely aggressive, consult the technical team.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eApplications of the sanitary diaphragm valve with pneumatic actuator\u003c\/h3\u003e\n\u003ch4\u003ePharmaceutical and Biotechnology Industry\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003esanitary diaphragm valve with pneumatic actuator\u003c\/strong\u003e is the standard component in aseptic lines for the production of vaccines, serums, and culture media. The total separation between the fluid and the actuator also guarantees process sterility in each automated cycle.\u003c\/p\u003e\n\u003cp\u003eTherefore, it is the required valve in aseptic systems where the product must remain sterile. Manual operation, on the other hand, is not acceptable in these processes.\u003c\/p\u003e\n\u003ch4\u003eFood and Beverage Industry\u003c\/h4\u003e\n\u003cp\u003eIn the automated processing of dairy products, beer, juices, and carbonated beverages, the pneumatic actuator also allows the valve to be integrated into control sequences from a PLC. Consequently, production cycles are more precise and downtime between batches is significantly reduced.\u003c\/p\u003e\n\u003cp\u003eLikewise, for automated dosing of additives and syrups, the diaphragm ensures that the fluid does not come into contact with lubricants in any cycle.\u003c\/p\u003e\n\u003ch4\u003eCIP\/SIP Cleaning and Sterilization Systems\u003c\/h4\u003e\n\u003cp\u003eIn automated cleaning and sterilization circuits, this valve also acts as a critical flow control component. The pneumatic actuator also executes the opening and closing sequences from the CIP system controller without operator intervention.\u003c\/p\u003e\n\u003cp\u003eTherefore, CIP cycles are more reproducible, and SIP cycles completely sterilize up to 110 °C without the need to disassemble the valve.\u003c\/p\u003e\n\u003ch4\u003eCosmetics and Personal Care Industry\u003c\/h4\u003e\n\u003cp\u003eIn lines for creams, lotions, and shampoos, the pneumatic actuator therefore allows for precise and repeatable control of the flow of viscous ingredients from a PLC. For this reason, it is the correct component in multipurpose lines where changing between formulations must be executed automatically.\u003c\/p\u003e\n\u003cp\u003eLikewise, the 3A clamp disassembly facilitates diaphragm maintenance without interrupting the rest of the circuit.\u003c\/p\u003e\n\u003ch4\u003eFine Chemical Industries\u003c\/h4\u003e\n\u003cp\u003eIn the automated handling of corrosive chemicals, the pneumatic actuator eliminates operator exposure to the fluid. It also improves operational safety in each cycle. Consequently, it improves operational safety in environments with toxic or aggressive fluids.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the hermetic sealing of the PTFE+EPDM diaphragm prevents external leaks at all times, protecting both the operator and the installation.\u003c\/p\u003e\n\u003cp\u003eFor the complete range of hygienic valves, see \u003ca href=\"https:\/\/cematic.com.mx\/collections\/valvulas-higienicas\"\u003ehygienic valves collection →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-diafragma-cuerpo-ss316l-neumatica.pdf?v=1766010841\" title=\"Technical Data Sheet Sanitary Diaphragm Valve Clamp SS316L Pneumatic Cematic\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #ab2121;\"\u003e\u003cstrong\u003eTechnical Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Cematic","offers":[{"title":"1\/2\"","offer_id":51456433455417,"sku":"PDNC0102","price":3164.45,"currency_code":"MXN","in_stock":true},{"title":"3\/4\"","offer_id":51456433488185,"sku":"PDNC0104","price":3653.16,"currency_code":"MXN","in_stock":true},{"title":"1\"","offer_id":51456433520953,"sku":"PDNC0106","price":5944.71,"currency_code":"MXN","in_stock":true},{"title":"1 1\/2\"","offer_id":51456433553721,"sku":"PDNC0108","price":11522.98,"currency_code":"MXN","in_stock":true},{"title":"2\"","offer_id":51456433586489,"sku":"PDNC0110","price":13127.94,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/files\/valvula-diafragma-ss316l-neumatica-25.jpg?v=1765929192"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/3917\/1508\/collections\/valvula-mariposa-higienica-sensor-io-link-modulante_d5355192-55f3-4ca7-b939-825ac32d5378.jpg?v=1775767073","url":"https:\/\/cematic.com.mx\/en\/collections\/valvulas-industria-quimica.oembed","provider":"Cematic","version":"1.0","type":"link"}