Pump outlet Why install check valve?

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Pump outlet Why install check valve? Pump outlet mounted check valve is designed to allow only water pump out, but not allowed to reverse the water back to the pump to prevent the pump suddenly stopped running, the high pressure water flow back to reverse the pump, causing the pump reversal. High-pressure water pump outlet can be sent directly to the boiler can also be sent to the pipe connected to the high-pressure pipe or sent to the high water tank. During operation, for some reason, when the pump stops suddenly, the pressure in the pump disappears and the high-pressure water connected to the outlet of the pump will flow backward to the pump. Pump outlet with check valve, it will immediately shut down to prevent the reverse flow of high-pressure water back to the pump. If the pump outlet is not installed check valve, high-pressure water will flow back to the reverse pump, pump impeller in the high-pressure water under the impact produced. Due to the impact of high pressure water impeller load, serious impeller or other parts will be loose or damaged; so that the mother of the water pressure drop, boiler water level drop, etc., affect the safe operation.

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