Applicable Standards
Manufacturing and Acceptance:ASME B16.34 - BS1868
Butt-welded end size:ANSI B16.25
Flange size:ANSI B16.5
End to End: ANSI B16.10
Valves test:API 598
Introduction:Flange end size、End to End、manufacturing and acceptance can be supplied as customers' requirements.
※Size is not suitable for ANSI B16.10
Introduction
This check valve is more suitable for frequent reverse fluid conditions, and the impact of the valve disc on the valve seat is relatively small. When acting, the valve disc passes a small arc around the rotating shaft, which can quickly enter and exit the valve seat without sliding or wear, so as to avoid fluid backflow and "water hammer". The valve is known as a "non impact" check valve for its rapid and silent closing ability.
Shell Mat'l : WCB(A105) WC6(F11) WC9(F22) C12A(F91) etc.
Properties and Features
◇ Flow non-reverse
◇ Simple construction and easy maintenance
◇ Unobstructed flow passage, small fluid resistance
◇ Long service life, high reliability