| 摘要 |
<p>A gas differential pressure valve with single diaphragm includes a body (1), a valve assembly (2), a first solenoid valve (3) and a second solenoid valve (4). The body has a first gas chamber (12), a second gas chamber (13), a third gas chamber (14), a first channel (15) and a second channel (16). The valve assembly is disposed in the body and a part of the valve assembly extends out of the body. The diaphragm separates the first gas chamber into a first pressure chamber (121) and a second pressure chamber (122). The first solenoid valve (3) is disposed in the second gas chamber (13). The second solenoid valve (4) is disposed in the third gas chamber (14). The second channel (16) is connected to the second pressure chamber (122) and the third gas chamber (14). Therefore, when the first channel (15) is jammed or the first solenoid valve (3) is broken, gas also can be cut off. It offers a further security for users.</p> |
