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力士乐比例阀R900925687 4WRAE10W1-30-22/G24N9K31/F1V 现货特价2台
DBETBEX-1X/315G24K31F1M 现货特价1台 力士乐气动aventics安沃驰
由于电磁铁推力的限制，在大于63L/min的液压系统中，一般不再选用直推式的电磁换向阀，而选用通过流量较大的电液换向阀。电液换向阀的原理是00909227 4WS2EM 10-5X/20B11ET315K31EV00949285 4WS2EM 10-5X/30B11ET315K31EV
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00949286 4WS2EM 10-5X/60B11ET315K31EV
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00918001 4WSE2ED 10-5X/20B9ET315K31EV
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00921236 4WSE2ED 10-5X/45B9ET315K31EV
00944398 4WSE2ED 10-5X/60B9ET315K31EV
00927674 4WSE2ED 10-5X/75B9ET315K31EV
00918008 4WSE2ED 10-5X/90B9ET315K31EV
00769978 4WS2EM 16-2X/100B12ET315K8EV
00716550 4WS2EM 16-2X/150B12ET315K8EV
00960575 4WS2EM 16-2X/200B12ET315K8EV
00769983 4WSE2ED 16-2X/100B9ET315K9EV
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00769981 4WSE2EM 16-2X/200B9ET315K9EV
00949290 4WSE3EE 16-1X/100B9-315K9EV：控制油通过电磁先导阀到达电液阀主阀芯的两端（即电液换向阀主阀体两端盖侧），通过电磁先导阀的换向，来实现主阀芯的左右移动，从而开通或切断通往执行元件的油路，使执行元件运行或停止。0510245001 0510565059 0510665369 0510765366
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0511625307 0521609051但在打开或切断油路的瞬间，系统中会产生相当大的冲击，这种冲击会极大影响液压系统中液压元件和密封件的使用寿命R900422257 DB10K2-4X/315Y
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R900438125 DB10K7-4X/315YV
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R900432722 DB6K3-4X/315YV为了减小及至消除由此引起的液压冲击，最简单的办法是在该电液阀下面叠加一个P口节流阀或进油节流式双单向节流阀、出油节流式双单向节流阀，以延长阀芯的换向及复位时间，从而到降低液压冲击的目的。下面就以弹簧复位型、三位四通中封式电液压换向阀为例、对该三种叠加节流方式作简要说明。
