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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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Our UPVC Extended Straight Couplings for Mining are engineered with an elongated socket depth to deliver maximum joint engagement and structural reinforcement for underground and heavy-duty slurry pipelines. Designed to withstand mechanical vibration, ground settling stress, and high continuous operating pressures common in harsh mining environments, these extended couplings ensure an ultra-secure, permanent connection that vastly outperforms standard industrial couplings.
Technical & Design Advantages:
Deep-Socket Engagement: Features an extended socket insertion depth that increases solvent cement bonding area, preventing joint pull-out under heavy longitudinal tension and ground shift.
Heavy-Duty Thick-Wall Construction: Manufactured with reinforced wall thickness to resist internal slurry abrasion, solid particle impact, and severe hydrostatic surge pressures.
Superior Abrasion & Chemical Resistance: Highly inert UPVC formulation completely resists corrosive mine drainage water, acidic tailings, and abrasive slurry deposits without pitting or wall thinning.
Smooth Hydraulic Bore: Ultra-smooth internal surfaces minimize friction head loss, prevent mineral scaling, and optimize pumping efficiency over extended pipe runs.
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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