比例方向阀4WRPE10W-50SJ-2X/G24K0/F1M

型号4WRREH 10
高频响方式阀，直动式，带电位反馈
规格10
安装面按DIN 24340 A 型和ISO 4401
控制流量的方向和大小
用于闭环控制，动能大
通过双行程控制电磁铁触发
通过感应位置监测器对控制阀芯进行位置感应
集成电控器（OBE）
特性曲线可带或不带变化
特点
– 带控制阀芯和伺服质量阀套的直动式高频响三位四通方向控
制阀
– 带电气位置反馈和集成电子元件（OBE）的双行程线圈，
在出厂时进行了校准
– 类似其他阀，可作为先导阀，控制带位置传感器的二位三通
插装阀
– 电气连接 11P-PE
差动放大器的信号输入使用接口 B5 ±10 V
– 用于生产和测试系统的电液控制
比例阀对流量的控制可以分为两种：
一种是开关控制：要么全开、要么全关，流量要么大、要么小，没有中间状态，如普通的电磁直通阀、电磁换向阀、电液换向阀。
另一种是连续控制：阀口可以根据需要打开任意一个开度，由此控制通过流量的大小，这类阀有手动控制的，如节流阀，也有电控的，如比例阀、伺服阀。
所以使用比例阀或伺服阀的目的就是：以电控方式实现对流量的节流控制（当然经过结构上的改动也可实现压力控制等），既然是节流控制，就必然有能量损失，伺服阀和其它阀不同的是，它的能量损失更大一些，因为它需要一定的流量来维持前置级控制油路的工作。
比例阀是气流只能一个方向流动而不能反向流动的方向控制阀。其工作原理与液压单向阀一样。压缩空气从P口进入，克服弹簧力和摩擦力使单向阀阀口开启，压缩空气从P流至A；当P口无压缩空气时，在弹簧力和A口（腔）余气力作用下；阀口处于关闭状态，使从A至P气流不通。
比例阀应用于不允许气流反向流动的场合，如空压机向气罐充气时，在空压机与气罐之间设置一单向阀，当空压机停止工作时，可防止气罐中的压缩空气回流到空压机。比例阀还常与节流阀、顺序阀等组合成比例阀使用。

4WRPE10W-50SJ-2X/G24K0/F1M比例方向阀供应型号
力士乐REXROTH高响应换向阀，直接操作
力士乐REXROTH高响应方向阀，直动式、电气位置反馈和集成电子放大版（OBE）CE
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力士乐REXROTH带电气位置反馈的高响应阀（LVDT的直流/直流±10 V）4WRPH 6
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力士乐REXROTH伺服电磁阀，带电气位置反馈（LVDT的直流/直流±10 V）4WRPH 10
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力士乐REXROTH电气位置反馈的高响应阀（LVDT的直流/直流）（设计：坚固耐用的）4WRPH..2X..-750
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力士乐REXROTH高响应方向阀，直动式、带电气位置反馈和集成电子放大版（OBE）4WRPEH 6 -2X
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0811404620 4WRPEH6XB24L-2X/G24K0/A1M-743
力士乐REXROTH伺服电磁阀四位四通高频单向阀门，直接驱动，带有集成电子和电气位置反馈（OBE）4WRPEH 6 -3X
比例阀的输入单元是电-机械转换器,它将输入的电信号转换成机械量转换器有伺服电机和步进电机力马达和力矩马达比例电磁铁等形式。但常用的比例阀大都采用了比例电磁铁，比例电磁铁根据电磁原理设计,能使其产生的机械量(力或力矩和位移)与输入电信号(电流)的大小成比例,再连续地控制液压阀阀芯的位置，进而实现连续地控制液压系统的压力方向和流量。比例电磁铁的结构，它由线圈、衔铁推杆等组成,当有信号输入线圈时,线圈内磁场对衔铁产生作用力,衔铁在磁场中按信号电流的大小和方向成比例连续地运动,再通过固连在一起的销钉带动推杆运动,从而控制滑阀阀芯的运动。