Do You Know Lift Check Valve?

Aug. 18, 2020

The flap of the lift check valve is located on the valve seat sealing surface of the valve body. This valve in addition to the valve can be free to lift, the rest as the same as the valve, the fluid pressure so that the valve from the valve seat sealing surface lift, the media back to the valve back to the valve seat, and cut off the flow. The same as globe valve, the passage of fluid through the lift check valve is also narrow, so the pressure drop through the lift check valve is larger than the swing check valve, and the flow of the swivel check valve is limited. This type of valve in the pipeline should generally be installed horizontally.

Check valve manufacturers ensure that the valve can reach the seat of the seat every time the appropriate location, the flap is designed in the hinge mechanism so that the flap has sufficient swivel space and the flap is truly and fully accessible to the valve seat. In the fully open condition of swing check valve, the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small.

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