The QH type safety valves are composed of two spring loaded safety valves paralleling. There is only one inlet.

QH型切换阀是两个弹簧式安全阀并联，具有同一进口。

youdao

The QH type safety valves are composed of two spring loaded safety valves paralleling. There is only one inlet.

QH型切换阀是两个弹簧式安全阀并联，具有同一进口。

youdao