供应力士乐减压阀

Rexroth力士乐先导式减压阀R900431172 ZDR6DB2-4X/150YM广州云翔机电设备有限公司代理经销力士乐电磁方向阀、溢流阀、电磁球阀、单向阀、压力阀、减压阀、比例阀、伺服阀、柱塞泵、流量阀、继电器、叶片泵、液压泵阀等产品行销全国各地。

REXROTH减压阀油液经先导阀和泄油日流回油箱，由于阻尼孔的作用产生压降，REXROTH减压阀当主阀芯上下腔的压差作用力大于弹簧10的预紧力时，主阀芯上升使减压口缝隙减小，液阻增大.致使出口压力P2下降。反之，则使出口回升。REXROTH减压阀这样就能够通过自动调节阀口开度，来保持出口压力稳定在调定值上。力士乐减压阀的阀口为常开型。由于进出油口均接压力油，所以泄油口要单独接油箱。REXROTH调节先导阀弹簧压紧力就可以调节减压阀控制压力。力士乐减压阀的结构和工作原理

　　如果由于外来千扰使进口压力P1升高。则出口压力P2也升高。主阀芯向上移动，主阀开口减小，P2又降低，在新的位置上取得平衡，而出口压力基木维持不变:反之亦然。这样，减压阀能利用出口压.力的反馈作用，自动控制阀口开度.认而使出口压力基本保持恒定，因此，称它为定值减压阀。

4WRE 4WREE 比例方向阀

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供应力士乐比例方向阀

罗素·贝克曾经说过，一个人即使已登上，也仍要自强不息。这不禁令我深思"

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