导阀可在主阀以外单独调定开启压力和关闭压力。
Pilot valve can adjust lift and close pressure solely out if main valve.
研究了喷油器开启压力和试验油温度对标准油量的影响；
Influence of injection pressure and fuel temperature for standard fuel consumption was studied.
软密封的主阀瓣能在95%以上的开启压力范围内获得高密封度。
Soft airproof main valve can obtain high airproof in the scope of over 95% lift pressure.
在达到压力的时候无需所有机器全部开启。
In the pressure to achieve without all the machines all open.
关闭供应压力，观察浮子下降，因此开启。
Turn off supply pressure and observe float drop to open air inlet.
在没有任何管道压力状态下开启和关闭阀门几次。
Stroke the valve open and closed several times, with no line pressure.
操作过程由于介质压力是有助于阀门开启的，所以减小了操作力矩。
Operation process as the medium pressure is help to open valve, so reduce operating torque.
通过空气气压力开启关闭电源，确保用电安全；
Turn on/off the power by air pressure to ensure the electrical safety;
进口压力使主阀开启。
进口压力使主阀开启。
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