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
As a professional manufacturer with integrated production control and a rigorous quality system, Chenyu Valve supplies high-quality Flange Swing Check Valves.
