Goole Valve Technology Co.,Ltd
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Structural principle of y type check valve
Structural Principle
The lifting check valve is similar in structure to a globe valve, except for the lack of a stem that drives the valve disc. The medium flows in from the inlet end (lower side) and out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the valve disc and its flow resistance, the valve is opened. On the contrary, when the medium flows back, the valve closes. The swing check valve has a valve disc that is tilted and can rotate around the axis, and its working principle is similar to that of a lift check valve. A check valve is commonly used as the bottom valve of a pumping device to prevent water from flowing back.
Working Principle
When the fluid enters the valve from the inlet, it is directed towards the lower part of the Y-shaped channel, rises along the channel, and finally leaves the valve through the valve disc. When the fluid flows in the opposite direction, the valve disc will force it to close, thereby achieving a check function. When the fluid enters the valve again from the inlet, the valve disc will reopen, allowing the fluid to continue flowing.
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