... piston-actuated valve 活塞驱动阀 open and close valve 开闭阀 multiple-seated valve 多级座阀 ...
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Open and close valve is equipped for front-end memory type alloy detector and upper shifting fork.
并设前端装记忆合金检测器与上拨叉配合的开闭阀。
Open vent needle valve and bleed air from hose. Then close vent valve.
开启排气针形阀,并从软管排放空气。然后关闭排气阀。
Check the valve parts before installation. Open and close the valve by hand for a period check the open-close position of the valve gate.
检查阀门各部位是否有松动现象,对阀门进行手动开启、关闭一个周期是否有异常现象,同时检查阀门的启闭位置是否准确。
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