Lock the exhaust valve in its open position.
把排气阀固定在它开启的位置。
Internal exhaust valve increases down stroke speed.
内部排气阀增加下冲速度。
Wet mill end cover is installed on the exhaust valve.
湿磨机端盖上安装放气阀。
The spare exhaust valve should be assembled and kept in a safe place.
备用排气阀应装配好放在安全的地方。
You can also cycle through the exhaust valve to achieve killing, flushing operation.
还可以通过排气阀实现循环压井、洗井作业。
Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.
报警输出：常开常闭信号，控制排风扇，电磁阀信号。
Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.
报警输出：常开常闭信号，控制排风扇，电磁阀信号。
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