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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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Enhanced with an elastomeric seal, our UPVC threaded plugs with O-ring provide superior dual-sealing protection for high-pressure cleanout ports and testing manifolds. Precision-manufactured in our factory, the integrated O-ring groove secures the elastomeric seal during installation, eliminating the need for excessive thread sealant tape while ensuring a completely drip-tight closure.
Dual-Sealing Performance: Combines heavy-duty precision threads with a pre-fitted O-ring seal for maximum leak prevention under pressure.
Tool-Free Seal Reliability: Requires lower hand-tightening torque to achieve a complete, bubble-tight liquid seal.
Factory-Fitted Quality: High-grade EPDM or Viton O-rings installed directly in our assembly line to ensure consistent sealing performance.
Reusable & Maintenance-Friendly: Designed for repeated insertion and removal without damaging the plug body or internal threads.
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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