当流体通过阀门时，第一阀瓣开启，从隔膜密封上离开。

With flow through valve, primary disc opens away from diaphragm seal.

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当有流体通过阀门时，第一阀瓣开启从隔膜密封上离开。

With flow through valve, primary check opens away from diaphragm seal.

youdao

当有流体通过阀门时，第一阀瓣开启从隔膜密封上离开。

With flow through valve, primary check opens away from diaphragm seal.

youdao