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How plastic valve work
Plastic ball valves and butterfly valves are commonly selected for full-open or full-close service. Ball valves provide fast 90-degree shut-off in small- and medium-size pipelines, while butterfly valves offer a compact solution for larger pipe diameters. Diaphragm valves may also be used where media isolation from the operating mechanism is required.
Valve body and sealing materials must be selected according to chemical compatibility, concentration, pressure and temperature. UPVC is commonly used for moderate-temperature water and chemical service, while PP, PPH, CPVC and PVDF configurations extend the available range for different process conditions. EPDM, FPM and PTFE sealing materials are available on selected valve types.
Applications & Industries
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Supmea Multi-Parameter Monitoring Supports Water Treatment at an International Airport in Argentina
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Frequently Asked Questions
What types of plastic valves does Supmea offer?
Supmea currently offers plastic diaphragm valves, plastic butterfly valves and plastic ball valves. The range covers isolation, flow regulation, quick shut-off and selected automated control applications.
Which materials are available?
Depending on the valve type, available body materials include UPVC, CPVC, PP, PPH and PVDF. Seal and seat options include EPDM, FPM and PTFE.
How do I select the correct plastic valve?
First define the required function, such as isolation, throttling, flow switching or automated control. Then confirm the process medium, chemical concentration, temperature, pipe size, operating pressure, connection type, body material and seal material.
What is the difference between a plastic ball valve and a butterfly valve?
A plastic ball valve provides fast quarter-turn shut-off and is commonly used in small- and medium-size pipelines. A plastic butterfly valve has a compact disc design and is generally more suitable for medium- and large-diameter piping systems.
When should I choose a plastic diaphragm valve?
A plastic diaphragm valve is suitable when the process medium must remain isolated from the valve operating mechanism. It can also be selected for flow regulation, high-purity service or compatible fluids containing suspended particles.
Can plastic valves be automated?
Yes. Selected diaphragm valves can use pneumatic or electric actuators, butterfly valves include an ISO 5211 mounting pad, and selected ball valves are available with an optional actuator interface.
