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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