1) motorized non-return valve
电动止回阀
2) automatic check valve
自动止回阀
3) swing check valve
摆动阀瓣止回阀
4) back valve
回动阀,止回阀,逆止阀,单向阀
5) Electric Actuated Stop Valves
电动截止阀
6) non-power check valve
无动力止回阀
1.
The necessity of valve shut down starting loading device for non-power check valve are described and a kind of valve are intrduced which have a auto-momentary loading device of starting moment of torsion acted by momentary deferential pressure by drainage pipeline system at normal stop sorking or breakdown condition.
阐述了无动力止回阀设置关阀起动加载装置的必要性 ,介绍了一种利用给排水系统运行及正常停泵或事故停泵时瞬间介质压差对止回阀起动转矩进行自动、瞬间加载的装置 ,及其主要结构元件的设
补充资料：自动
①自己主动；出于自己心愿：非常自动地来到车站送行｜自动报名参加。②不靠外力的：自动燃烧。③指器械通过自身的装置而活动：自动传输｜自动售货机。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条