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How Does The Check Valve Work?

- Dec 14, 2017 -

Relative to the check valve, everyone must be unfamiliar, so do you know the principle of his work and the process of their work? The working principle and working process of the check valve are described in detail below.

The working process of the check valve:

The outlet valve is opened and the water pump is started. When the water supply reaches a certain pressure, the valve flap rises to a certain height under the action of the feed water pressure and pushes away from the valve seat, and the water supply flows out. At the same time as the rise of valve, drive the connecting rod to rotate, toggle an air vent valve, the valve blade recirculation moved downward, closing an air vent. When the water flow rate is reduced, the valve disc falls, pushing the connecting rod to open the emptying valve plate, and opening the recirculation door to maintain the minimum flow rate of the pump. When the pump is stopped, the valve automatically drops down and closes the channel of the valve to prevent the damage of the water hammer water supply system of high pressure.


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