Straight through lift check valve should be installed on the horizontal pipe, vertical lift check valve and the bottom valve is generally installed in the vertical pipe, and the medium flows from bottom to top. Swing check valve installation location is not properly restricted, usually installed in the horizontal pipe, but can also be installed in the vertical pipe or pouring pipe. When installing the check valve, pay special attention to the flow direction of the medium so that the normal flow direction of the medium matches the direction of the arrow indicated on the body or the normal flow of medium will be cut off. Bottom valve should be installed at the bottom of the pump suction pipe. When the check valve is closed, water hammer pressure will be generated in the pipeline, which will cause damage to the valve, pipeline or equipment in severe cases, especially for large-diameter pipelines or high-pressure pipelines, which should attract the attention of check valve users .
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