{"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","url":"https:\/\/cematic.com.mx\/en\/products\/valvula-mariposa-higienica-soldable-316l-viton-3pc","provider":"Cematic","version":"1.0","type":"link"}