Drainage balance type two-way liquid return alternating valve
The utility model discloses a drainage balance type two-way liquid return alternating valve. The check valve comprises a valve body, a valve element assembly arranged on the valve body is communicatedwith a liquid return port and a working port through a valve cavity, the valve element assembly comp...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a drainage balance type two-way liquid return alternating valve. The check valve comprises a valve body, a valve element assembly arranged on the valve body is communicatedwith a liquid return port and a working port through a valve cavity, the valve element assembly comprises a valve sleeve coaxial with the liquid return port, a liquid inlet is formed in one end of the valve sleeve, and a valve element sleeved with a return spring is arranged at the other end of the valve sleeve in a penetrating mode; a working cavity communicated with the liquid inlet is formed in the tail portion of the valve element, a balance cavity is formed by a gap between the valve element and the valve sleeve, and the working cavity and the balance cavity are respectively communicatedwith the valve cavity. The bidirectional double-flow-channel liquid return valve has a bidirectional double-flow-channel liquid return function, can balance misoperation such as passive closing of the valve port caused by liq |
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