Flexible disc swing check valve consists of a valve body, a bonnet, and a disc that is connected to a hinge. The valve is of the swing check type utilizing an angled seat and fully encapsulated, resilient disc. It is capable of handling a wide range of fluids including flows containing suspended solids.The disk swings away from the valve-seat to allow flow in the forward direction, and returns to valve-seat when upstream flow is stopped, to prevent back flow. allows full, unobstructed flow and automatically closes as pressure decreases.

The Flexible disc swing check valve is mainly used for water supply and drainage system, and other industrial sectors of the pipeline outlet to prevent medium countercurrent. Because the sealing ring of the product is designed by inclined design, the closing time is short, and the water hammer pressure can be reduced.