Non-slam check valves are check valves used to prevent reverse fluid flow. Also, these valves are meant to eliminate or reduce water hammer and their associated effects. A water hammer is a high-pressure shock wave that happens when the fluid flow stops abruptly because of a pump or valve closing quickly in a piping system. When water hammer happens, the fluid flow reversal causes high stress on the piping system which endangers its structural integrity and may cause damage or rupture. Non-slam check valves are used to prevent water hammers and ensure fluid flows in one direction only. Non slam check valve manufacturer produce this valve without handle or actuator but it works mechanically to stop the fluid flow from reversing.A non slam check valve works based on differential pressure. When the upstream pressure is high, it provides enough pressure energy that is used to open the valve disc. The disc is supported by the use of a spring. As such, the pressure energy compresses the disc to open. When the disc opens, fluid flows through the valve from the inlet to the outlet port and finally to the piping system. The valve closes when fluid pressure reduces.
