力士乐rexroth电磁阀天津一级代理
力士乐rexroth电磁阀授权代理商
rexroth电磁阀报价、rexroth力士乐电磁阀安装
德国力士乐rexroth优惠*
力士乐电磁阀有现货
力士乐电磁阀选型及技术参数资料
力士乐rexroth6通经电磁阀
德国rexroth力士乐10通经电磁阀
REXROTH液控单向阀是依靠控制流体压力，可以使单向阀反向流通的阀。这种阀在煤矿机械的液压支护设备中占有较重要的地位。力士乐REXROTH液控单向阀与普通单向阀不同之处是多了一个控制油路K，当控制油路未接通压力油液时，液控单向阀就象普通单向阀一样工作，压力油只从进油口流向出油口，不能反向流动。当控制油路油控制压力输入时，活塞顶杆在压力油作用下向右移动，用顶杆顶开单向阀，使进出油口通。若出油口大于进油口就能使油液反向流动。
力士乐rexroth电磁阀天津一级代理
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