Import Flange Swing Check Valve — Buy in Bulk from Supplier in China

The Flange Swing Check Valve from Jilin Senfeng Pipe Co., Ltd. is a mechanical device designed to permit fluid flow in one direction while preventing reverse flow. It features flanged ends compatible with ANSI B16.5 Class 150 and Class 300 piping systems, with body materials typically cast carbon steel ASTM A216 WCB or stainless steel ASTM A351 CF8. The disc swings on a hinge pin and seats against a machined seat ring to ensure tight shutoff under pressure. Dimensions range from DN50 to DN300, with pressure ratings up to 20 bar at 200°C.

The valve body is manufactured using standard foundry practices and undergoes basic visual and dimensional inspection. Internal components are machined to typical industry tolerances of ±0.1 mm for disc alignment and ±0.05 mm for seat surface flatness. The disc is often fabricated from stainless steel or bronze, while the hinge pin is hardened to resist wear. While the listing does not specify certification standards, the design aligns with API 594 and MSS SP-42 for swing check valves used in industrial fluid systems.

This valve is commonly used in water treatment plants, oil and gas pipelines, and chemical processing units where backflow prevention is critical. Buyers include municipal utilities, industrial maintenance contractors, and OEMs in fluid handling equipment. Packaging is typically in wooden crates with internal foam padding. Trade terms offered include FOB Dalian and CIF ports in Southeast Asia. MOQ is not stated; buyers must confirm minimum order quantities directly with the supplier.

Jilin Senfeng Pipe Co., Ltd. is based in Panshi, Jilin Province, China, with a physical address listed on industrial directories. The company specializes in pipe fittings and valves, with production facilities focused on cast and forged components. The listing shows no verified certifications, no export history, and no client references. Response metrics are not available, indicating limited engagement on sourcing platforms.

The supplier does not claim years in business, workforce size, or revenue. No details are provided about quality control processes, testing equipment, or third-party audits. The absence of response rate data suggests the company may operate with minimal digital customer interaction. Buyers should treat this as a direct manufacturer with unverified operational claims and confirm all technical details before placing orders.