Huiya manufactures a complete range of industrial plastic valves for corrosion-resistant flow control — in UPVC, CPVC, PPH and PVDF, manual or pneumatically actuated, from DN15 to DN300. Where metal valves corrode and seize, thermoplastic valves handle aggressive acids, alkalis, brine and high-purity media at a fraction of the weight and cost. Every valve is offered in both DIN metric and ANSI/ASTM dimensions and backed by a 12-month quality warranty.
By valve type: our true union ball valves and flanged ball valves give quarter-turn shut-off for small-bore and large-bore lines respectively; butterfly valves offer compact throttling for larger diameters; and diaphragm valves isolate the media from the stem for the most aggressive and solids-bearing service. For automated dosing and process control, see our pneumatic valves.
By material: choose UPVC for ambient water and mild chemicals, CPVC for hot and acidic duty to 90°C, PPH for strong caustic and alkalis, or PVDF for concentrated acids, halogens and high purity to 120°C.Tell us your medium, concentration and temperature, and our engineers will recommend the right valve type, body material and seat.
Choosing a valve? Start with our complete guide to choosing a plastic ball valve, or compare valve types in ball valve vs butterfly valve and our diaphragm valve guide. Browse plastic ball valves by material — UPVC, CPVC, PPH and PVDF — and if a valve is giving trouble, see how to fix a leaking PVC ball valve.
PPH Pneumatic True Union Ball Valve The Huiya PPH pneumatic ball valve is a true union, full-port automated valve engineered for hot alkaline and corrosive fluids — the applications where PVC, CPVC, and even PVDF reach their limits. Built from polypropylene homopolymer (PPH) and rated to 85°C, it is the material of choice for caustic […]
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CPVC Flanged Pneumatic Ball Valve The Huiya CPVC flanged pneumatic ball valve is a large-bore automated valve for corrosive and high-temperature fluid control in chemical processing, water treatment, and mining. Available in ANSI Class 150, DIN PN10, and JIS 10K flange standards and sizes from DN15 to DN200, it pairs CPVC’s chemical resistance with a
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The Huiya CPVC pneumatic true union ball valve is a true union, two-piece automated valve built for corrosive and high-temperature fluid control in chemical processing, water treatment, electroplating, and mining. Rated up to 93°C (200°F) and PN16, it combines CPVC’s chemical resistance with the fast, reliable on/off control of a pneumatic actuator — and a
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CPVC Pneumatic Butterfly Valve The Huiya CPVC pneumatic butterfly valve delivers automated on/off control for corrosive fluids in chemical processing, water treatment and mineral processing systems. The CPVC body resists acids, alkalis and chlorinated media, while the pneumatic actuator enables fast, reliable remote operation. Available from 2″ to 12″ in wafer and lugged styles, with
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