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Industrial and commercial scenarios often face three major challenges: continuous operation, complex media and pressure fluctuations. Factory water supply and drainage require fittings with stable pre...
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Combining the installation flexibility of standard flanges with the inline serviceability of a true-union valve, the UPVC Flanged True Union Ball Valve is engineered for heavy-duty industrial piping headers. Featuring factory-molded ANSI or DIN flanged ends integrated into a true-union valve body, it enables direct bolt-up mounting to flanged pumps, tanks, and valves while retaining full central body disconnect capabilities. This dual configuration allows maintenance crews to unbolt the central valve body for servicing without unbolting the end flanges from connected equipment. Manufactured with heavy-walled UPVC and PTFE ball seats, it delivers bubble-tight shutoff under continuous chemical exposure and line pressure.
Technical & Design Advantages:
Integrated Flanged End Connections: Precision-molded flange ends align perfectly with standard ANSI/DIN companion flanges for direct equipment mating.
True-Union Disconnect Capability: Central valve body can be unthreaded and removed for servicing while end flanges remain bolted to piping.
PTFE Seats & Double Stem Seals: Low-friction PTFE seats paired with dual elastomeric O-rings ensure bubble-tight shutoff and low operating torque.
Full Chemical Resistance: Heavy UPVC structure protects against internal process chemical attack and external atmospheric corrosion.
Zhejiang Feiya Plastic Co., Ltd. is located in Zhejiang Province, adjacent to Yiwu — the world‑renowned capital of small commodities. It enjoys convenient transport links to coastal cities including Shanghai, Hangzhou, Ningbo and Taizhou, backed by well‑developed logistics networks.
Our journey started in 1992 as Jiangshan Sanjin Machinery & Hardware Factory. We strategically turned to PVC piping production in 2001 and registered our proprietary FEIYA brand in 2002. With over 30 years of industrial expertise, our 40‑acre factory boasts a building area of 50,000 m². As an original manufacturer for plastic pipes, fittings and valves, we serve domestic markets and export our products to more than 100 countries around the globe.
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