力士乐电液换向阀4WEH10E4X/6EG24N9K4 
电液换向阀是用控制油路中的压力油推动阀芯。
电液换向阀是电磁换向阀和液控换向阀的组合，它是用电磁换向阀控制液控换向阀的动作，变换流体流动方向的控制阀。
电液换向阀和液控换向阀主要用在流量超过电磁换向阀正常工作允许范围的液压系统中，对执行元件的动作进行控制，或对油液的流动方向进行控制
工作原理: 当两个电磁阀线圈通电时，平衡孔回路关闭，泄流孔回路打开，活塞上腔泄压，活塞上行，阀门打开。反之，活塞下行，阀门关闭。在阀门开启和关闭过程中，可将流量信号及阀塞位置信号传送给计算机，经过计算机处理后发出相应的指令，控制两个电磁导阀的通、断电状态，使活塞的上下腔的液压差产生变化，从而将活塞控制在所需的开启高度上，实现对管道介质流量的控制。
类型 4WEH 和 4WH
   规格 10 至 32
   组件系列 4X；6X；7X
   大工作压力为 350 bar [5076 psi]
   大流量为 1100 l/min [290 US gpm]
特点
– 2 种驱动类型：
电液（类型 WEH）
液压（类型 WH）
– 用于底板安装
– 节流模式符合 ISO 4401 和 NFPA T3.5.1 R2
– 符合数据表 RC 45054 至 RC 45060 的底板
   （单独订购），请参阅第 32 页
– 弹簧或液压对中，弹簧偏置或液压偏置
– 湿式插脚直流或交流电压线圈，可选
– 手动操控，可选
– 电气连接为单个连接或中央连接，请参阅 RC 23178 和 RC 08010
– 切换时间调整，可选
– 主阀通道 P 中的预载阀，可选
– 主阀芯的行程调节，可选
– 行程调节和/或偏置控制，可选
– 感应位置开关和接近传感器（无触点）
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博世电磁阀4WEH32H6X/6EG24N9K4/B10，订货号R901015155
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