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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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The CPVC Blind Flange is a solid, heavy-duty flanged cap designed to block off flanged pipe ends, vessel ports, or valve outlets operating under elevated temperatures and pressure. Engineered for high hydrostatic pressure containment, it allows process lines to be safely sealed for future expansion or isolated for routine system maintenance and cleaning. Molded as a solid, thick-section disk, it resists bowing or deformation under full bolt torque and continuous thermal loads. Its smooth sealing face ensures even gasket compression, providing a 100% bubble-tight seal that completely resists aggressive chemicals, hot acids, and environmental weathering.
Technical & Design Advantages:
Solid Heavy-Wall Profile: Molded as a solid, thick-section disk capable of withstanding full system working pressure without flex or distortion at high temperatures.
Standardized ANSI / DIN Bolt Hole Pattern: Precision-molded bolt holes line up perfectly with standard metallic and plastic mating flanges.
Smooth Sealing Face: Flat, smooth gasket contact face ensures even gasket compression for a 100% leak-proof seal.
Chemical & Thermal Resistance: Completely immune to internal hot process fluids 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.
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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