... 回转液压马达Swing hydraulic motor 轴向柱塞马达Axial•piston motors 安全阀设定值Safety valve 工作装置液压回路Boom，arm and bucket circuit 329MPa ...
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安全阀最大许用设定值 maximum allowable relief valve setting
设置安全阀可使得在轮胎压力达到设定值时，筒体形成空载。
The arrangement of the safety valve makes the barrel body form zero load when the tyre pressure reaches the set value.
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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