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API6D Full Bore Check Valve
A check valve, clack valve, non-return valve or one-way valve is a mechanical device, a valve, which normally allows fluid (liquid or gas) to flow through it in only one direction.
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, and/or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a
Production Standards:
Check Valve Design: API 6D
Face to face: ANSI B16.10
Flange Ends: ANSI B16.5
Inspecting/Testing: API 598 / API 6D
Design Description:
Bolted Cover
Pressure Seal Cover
Swing Type, Anti-rotation Disc
Renewable Seat Rings
Non-penetrate Disc Shaft
Horizontal Servece
Size: 2" - 48"
Pressure: 150LB - 2500LB
Connection: Flanges,RTJ Flange,Butt Weld,Groove
Material:
Carbon Steel, Forged Steel, Stainless Steel
GS-C25,LCB,LCC,LC1,CF8,CF8M,CF3,CF3M,WC6,WC9, C5,C12,C12A
Specifical Material:
Duplex Steel, Super Duplex Steel, Inconel
GR4A, GR6A, CY-40, Inconel 600
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