API Standard Flange Swing Check Valve
Flange Swing Check Valveis 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
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Size Range |
2" – 48" (DN50 – DN1200) |
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Pressure Range |
150 LB – 2500 LB |
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Connection Ends |
FLG, BW |
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Main Material |
WCB, WCC, LCB, LCC, GG25, GGG40, CF8, CF8M, 2205, Duplex Stainless Steel, etc. |
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Bonnet Type |
Pressure Self-sealing, Bolted Bonnet |
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Design & Manufacture |
ASME B16.34 / BS1868 |
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Face-to-Face |
ASME B16.10 |
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Connection Standards |
ASME B16.5 / ASME B16.47 A / ASME B16.25 |
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Testing & Inspection |
API 598 |
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Application Scope |
Petroleum, Chemical, Electric Power, Metallurgy, Medicine & other industries |
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