Repairable 2-piece stem drive.

可维修的2件式阀杆驱动。

youdao

It has a large one-piece stem that requires at least 35 foot-pounds of torque to close.

它有一个大的单阀杆，关闭要求至少35英尺-磅的转矩。

youdao

Operating Principle: The tied-diaphragm valve is a handwheel-operated valve, utilizing a two-piece stem connected through the diaphragms.

这是通过穿透横膈膜，把上下阀杆机械地连接在一起来实现的。

youdao

An excellent piece with the unusual quality of stem cell truth, something very rare in North America.

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