Check Valve

A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid 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.

A swing valve is a check valve in which the disc, the movable part to block the flow, swingson a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle.

OGV Swing Check Valves are quiet operating valves that effectively prevent backflow. The “flapperless” design is gentle on the seat as the piston rises and lowers with increased and decreased flow rates.

Standard Specifications