Forbes Marshall Swing Check Valve

Swing Check Valve

The Forbes Marshall swing check valve is a non-return valve with a swing type disc control element. The disk swings away from the valve seat to allow flow in the forward direction, and returns to the valve-seat when an upstream flow is stopped, to prevent backflow.

Testable Disc Design
Fully confined pressure boundaries
Full bore piggable design
Hinge position ensures positive closing even at low pressure/flow
Optional dashpot arrangement for non-slamming operation
Suitable for both horizontal and vertical installation

Reduced additional leakage paths due to no external drilling
Reduced hammering and chattering
Low-pressure drop