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Check valve is used in fluid system to prevent reverse flow fluid, or used in pneumatic system to prevent reverse flow of compressed air
This check valve keeps the water from flowing back to the pump and prevents the pump from rapid cycling, extending the life of the pump
These check valves are applicable for fluid systems to stop countercurrent liquids, or for pneumatic systems to prevent reverse flow of compressed air.
Note: when installing the check valve, pay special attention to the flow direction of the medium; The normal flow direction of the medium should be consistent with the arrow direction indicated on the valve body, otherwise the normal flow of the medium will be cut off