Common check valve installation and use

Straight-through lift check valves should be installed on horizontal pipes. Vertical lift check valves and bottom valves are generally installed on vertical pipes and the medium flows from bottom to top.

Swing check valve installation position is not properly limited, usually installed in the horizontal pipeline, but it can also be installed in the vertical pipeline or tilting pipeline.

When installing the check valve, special attention should be paid to the direction of flow of the medium, and the normal flow direction of the medium should be consistent with the direction of the arrow indicated on the valve body, otherwise the normal flow of the medium will be cut off. The bottom valve should be installed at the bottom of the suction line of the pump.

When the check valve is closed, water hammer pressure will be generated in the pipeline. In severe cases, the valve, piping or equipment will be damaged, especially for large-mouth pipelines or high-pressure pipelines. Therefore, the height of the check valve should be taken into consideration. .

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