Using the handwheel, turn the stem counterclock wise until it stops (50 ft./lbs.). A step on the stem has now been back-seated against the upper portion of the valve body.
英
美
释义
用手轮,逆时针旋转阀杆直到其停止为止(50英尺/磅)。阀杆上的台阶现在已经坐落在阀体的上面部分上。
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