调节导阀弹簧即可设定出口压力。
外表采用机箱结构，压力传递采用杠杆踏板式弹簧加压结构，调节、操作、维修均方便。
Of a box structure and a lever-petal type spring-pressuring structure used for pressure transmission, easy to be adjusted , operated and maintained.
其安全阀是通过密封垫和调节弹簧构成的，当进口压力大于设定值时克服弹簧压力， 把过压气体泄放出去。
The relief valve consists of a sealer and an adjusting spring. When the inlet pressure is greater than a set value, the spring pressure is overcome to discharge over-pressure air.
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