API Standard Flange Swing Check Valve

Flange Swing Check Valve is a specific and widely used type of Check Valve. Its
primary function is to automatically prevent the reverse flow of media in a
pipeline system, allowing flow in only one direction.Its core mechanism
features a disc (or flap) that swings on a hinge or trunnion. Under forward
flow pressure, the disc swings open; when the flow stops or reverses, the disc
swings closed by gravity and backflow pressure to form a seal.
Main Specification of the Product
Size Range 2" – 48" (DN50 – DN1200)
Pressure Range 150 LB – 2500 LB
Connection Ends FLG, BW
Main Material WCB, WCC, LCB, LCC, GG25, GGG40, CF8, CF8M, 2205, Duplex
Stainless Steel, etc.
Bonnet Type Pressure Self-sealing, Bolted Bonnet
Design & Manufacture ASME B16.34 / BS1868
Face-to-Face ASME B16.10
Connection Standards ASME B16.5 / ASME B16.47 A / ASME B16.25
Testing & Inspection API 598
Application Scope Petroleum, Chemical, Electric Power, Metallurgy,
Medicine & other industries

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