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How The Check Valve Works
Apr 23, 2018

Check valves can also be used on pipelines where the pressure may rise above the system pressure to assist the system. Check valve can be divided into swing check valve (rotation by gravity center) and lift check valve (move along the axis).

The function of this type of check valve is to allow only medium to flow in one direction and to prevent reverse flow. Normally, this type of valve operates automatically. The valve flap is opened by the fluid pressure flowing in one direction. When the fluid flows in the opposite direction, the fluid pressure and the self-closing flap of the valve flap act on the valve seat to cut off the flow.

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