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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 Industrial UPVC Sampling Valve is a precision-engineered fluid collection valve designed to draw clean, uncontaminated fluid samples directly from active process pipelines, storage vessels, or reactor tanks without disturbing main line pressure or flow integrity. Constructed entirely from chemical-grade unplasticized PVC, this sampling valve eliminates fluid contamination, chemical interaction, and metallic ion leaching, ensuring complete sample purity for analytical and laboratory testing. The valve features a compact micro-metering stem paired with an ergonomic turn knob, allowing plant technicians to control sample flow rates with absolute precision—from drops to a steady, controlled stream. Designed with an ultra-short dead-leg internal body path, it prevents fluid stagnation, crystallization, and cross-sample contamination between testing cycles.
Technical & Design Advantages:
Zero-Contamination Non-Metallic Body: All-plastic UPVC fluid contact path eliminates corrosion, rust, and metallic ion contamination, preserving absolute sample purity.
Ultra-Short Dead-Leg Geometry: Internal flow path minimizes fluid holdup and stagnation, ensuring representative sampling and preventing cross-contamination between tests.
Precision Micro-Metering Flow Control: Fine-threaded valve stem enables smooth, micro-adjustable throttling for safe, splash-free liquid collection.
Leak-Proof Elastomeric Stem Seal: Dual O-ring stem seals prevent external fluid leakage and stem blowout under continuous line operating pressure.
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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