When installing the check valve, special attention should be paid to the flow direction 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 end of the water pump suction pipeline; 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-mouth pipelines or high-pressure pipelines Therefore, it should attract the high attention of the check valve users; the check valve is only used as a one-way opening and closing valve to prevent the backflow of the fluid medium on various pipelines or equipment.
