Automated PVC Valves with Pneumatic or Electric Actuator

We offer automated PVC valves for controlling corrosive fluids, water, and low-pressure industrial systems. Additionally, we have high chemical resistance PVC ball and butterfly valves. Therefore, they are the most efficient option when metal is not compatible with the fluid or when weight and cost are critical factors. Moreover, we deliver all of them assembled, calibrated, and tested, ready for installation.

Why choose PVC valves instead of metal?

PVC offers specific advantages that make it superior to metal in certain processes. For example, when the fluid is corrosive or the installation budget is tight, PVC is the technically and economically correct choice. Below, we explain its main advantages:

• High resistance to chemical corrosion: PVC resists diluted acids, alkalis, salts, and many solvents that would attack metallic valves. Therefore, it is the preferred material in water treatment systems with chlorine, chemical dosing, and processes with aggressive low-pressure fluids.
• Significantly lower weight: A PVC valve weighs between 3 and 5 times less than its iron or steel equivalent. Thanks to this, it facilitates installation in overhead pipes and reduces the structural load of the system. Therefore, it is ideal in installations where weight is a limiting factor.
• Lower acquisition cost: PVC is considerably more economical than stainless steel and ductile iron. Likewise, its lower weight reduces transport and installation costs. Therefore, it is the most efficient option in large-scale projects such as agricultural irrigation and water distribution.
• Does not require painting or anti-corrosion coating: Unlike carbon steel, PVC does not rust or require surface maintenance. Therefore, it considerably reduces maintenance costs over the system's useful life. Furthermore, it maintains its appearance and chemical properties without additional treatments.

Available models: automated PVC butterfly valves

Below, we present the available models of PVC butterfly valves with actuators. In addition, both models feature a Viton seat and ISO 5211 mounting for direct coupling to the actuator. Therefore, they are compatible with most actuators on the market:

• Corrosion-Resistant PVC Butterfly Valve with Pneumatic Actuator: Combines the chemical resistance of PVC with the operating speed of the pneumatic actuator. Therefore, it is ideal for frequent opening and closing cycles in water, irrigation, and corrosive fluid systems. In addition, the pneumatic actuator operates without electricity at the control point, making it safer in environments with liquids present. It is also available in single and double-acting depending on the required safety logic.
• Corrosion-Resistant PVC Butterfly Valve with Electric Actuator: This is the right choice when a compressed air network is not available at the installation point. In addition, it allows direct integration with PLC and SCADA systems for remote control and monitoring of the valve status. Therefore, it is ideal for agricultural installations with digital automation, water treatment plants, and technified irrigation systems. It is also available in ON-OFF and modulating mode with a 4-20 mA signal for precise flow regulation.

Available models: automated PVC ball valves

In addition to butterfly valves, we offer PVC ball valves with actuators for applications that require a tighter flow shutoff. Therefore, if your process demands a low-leakage closure or high differential pressure for the valve type, you will find the right option below:

• PVC Ball Valve with Pneumatic Actuator: Offers a tight floating ball shutoff with fast operation via compressed air. Therefore, it is ideal for applications where a clean, drip-free flow cutoff is required. In addition, its NPT threaded connection facilitates installation in existing systems without modifications. It is also the most economical option for automating water, diluted acid, and chemical control in low-pressure systems.
• PVC Ball Valve with Electric Actuator: Combines the tight shutoff of the ball valve with the versatility of the electric actuator. Thanks to this, it does not require a compressed air network and allows integration with digital control systems. Therefore, it is ideal for remote installations, automated dosing systems, and processes where precision and remote control are priorities. In addition, it is available in ON-OFF and modulating mode for greater control flexibility.

Viton seat: the right choice for aggressive fluids

All models in this collection feature a Viton (FKM) seat. Therefore, it is important to understand why this elastomer is the right choice for PVC valves in industrial processes. Below, we explain its advantages:

• High chemical resistance: Viton resists concentrated acids, alkalis, hydrocarbons, and aggressive solvents. It is also compatible with the vast majority of fluids for which PVC is used. Therefore, it is the standard seat in PVC valves for industrial and water treatment applications.
• Wide temperature range: Operates correctly between -20°C and 200°C. Therefore, it covers practically all temperature conditions in water systems and low-pressure chemical processes. In addition, it maintains its elasticity and sealing properties throughout this range without hardening or degrading.
• Longer lifespan than EPDM in chemical applications: While EPDM is ideal for clean water and steam, Viton offers a significantly longer lifespan when the fluid contains chemical compounds. It also resists permanent deformation better than other elastomers under continuous use conditions.

Industrial and commercial applications

Our automated PVC valves are used in a wide variety of sectors. For example, they are the preferred choice in processes where chemical corrosion, weight, or budget make the use of metallic valves unfeasible. Likewise, their versatility in actuator type makes them compatible with any level of automation:

• Drinking water and wastewater treatment: For automatic flow control in water treatment plants, chlorination systems, and chemical dosing. Therefore, PVC with a Viton seat is the reference material in this sector due to its resistance to chlorine and treatment products.
• Agriculture and technified irrigation: For the automation of drip and sprinkler irrigation sections. In addition, the low weight and cost of PVC make it the most efficient option in large-scale projects where dozens or hundreds of valves are installed. Furthermore, models with 24V DC electric actuators are compatible with solar systems in areas without access to the electrical grid.
• Low-pressure chemical industry: For handling diluted acids, alkalis, and saline solutions where stainless steel is not necessary or is excessively expensive. Therefore, PVC with Viton offers the necessary chemical resistance at a fraction of the cost of metal.
• Aquaculture and fish farming: For automatic water flow control in ponds and recirculation systems. Likewise, the inertness of PVC makes it suitable for contact with water intended for living organisms without the risk of contamination from metallic corrosion.
• HVAC and cooling systems: For controlling cooling water and antifreeze solutions in industrial HVAC systems. Finally, its low cost and ease of installation make it the most efficient option in these types of applications.

Why choose CEMATIC?

• 4 models available in stock with immediate delivery throughout the Mexican Republic.
• In addition, we deliver each assembly assembled, calibrated, and tested, ready for installation without additional adjustments.
• We also offer free technical advice to select the correct actuator type according to your process and available infrastructure.
• Likewise, all models feature ISO 5211 mounting for direct coupling and compatibility with multiple actuator brands.
• Finally, we respond by phone, WhatsApp, and email on the same day.