REXROTH直动式比例阀4WRAE10W1-30-2X/G24N9K31/A1V

德国博世力士乐Rexroth比例方向阀 

型号4WRA 和 4WRAE 

比例方向阀，直动式，无电位置反馈

规格6和10 

安装面按ISO 4401 

控制流量的方向和大小 

比例电磁铁操作 

对中弹簧控制阀芯 

不同阀芯可遮盖 

集成控制电气元件（OBE）用于4WRAE型

型号4WRH, 4WRZ, 4WRZE 

比例方向阀，先导式，无电位置反馈

比例阀是一种新型的液压控制装置。在普通压力阀、流量阀和方向阀上，用比例电磁铁替代原有的控制部分，按输入的电气信号连续地、按比例地对油流的压力、流量或方向进行远距离控制。比例阀一般都具有压力补偿性能，输出压力和流量可以不受负载变化的影响

比例阀介绍：

随着液压传动和液压伺服系统的发展， 生产实践中出现一些即要求能够连续的控制 压力、流量和方向，又不需要其控制精度很 高的液压系统。由于普通的液压元件不能满 足具有一定的伺服性要求，而使用电液伺服 阀又由于控制精度要求不高而过于浪费，因 此近几年产生了介于普通液压元件 （开关控制） 和伺服阀 （连续控制） 之间的比例控制 阀。

电液比例控制阀（简称比例阀）实质上是一种廉价的、抗污染性能较好的电液控制阀。比例阀的发展经历两条途径，一是用比例电磁铁取代传统液压阀的手动调节输入机构，在传统液压阀的基础下：发展起来的各种比例方向、压力和流量阀；二是一些原电液伺服阀生产厂家在电液伺服阀的基础上，降低设计制造精度后发展起来的。

比例阀的工作原理：

下图所示为比例阀工作原理框图。指令信号经比例放大器进行功率放大，并按比例输出电流给比例阀的比例电磁铁，比例电磁铁输出力并按比例移动阀芯的位置，即可按比例控制液流的流量和改变液流的方向，从而实现对执行机构的位置或速度控制。在某些对位置或速度精度要求较高的应用场合，还可通过对执行机构的位移或速度检测，构成闭环控制系统。

比例阀由直流比例电磁铁与液压阀两部分组成，比例阀实现连续控制的核心是采用了比例电磁铁，比例电磁铁种类繁多，但工作原理基本相同，它们都是根据比例阀的控制需要开发出来的。

比例阀由直流比例电磁铁与液压阀两部分组成，比例阀实现连续控制的核心是采用了比例电磁铁，比例电磁铁种类繁多，但工作原理基本相同，它们都是根据比例阀的控制需要开发出来的

规格10至52 

安装面按ISO 4401 

控制流量的方向和大小 

通过3通减压阀进行先导控制 

弹簧对中和主阀芯的反转动特点 

不同阀芯可遮盖 

用于4WRZE的集成控制电气元件(OBE) 

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R900900987 4WRAE6W30-2X/G24N9K31/A1V

博世Bosch Rexroth力士乐上海优势供应阀系列产品如下：

力士乐Rexroth电磁阀，力士乐Rexroth比例阀，力士乐Rexroth溢流阀，力士乐Rexroth调节阀，力士乐Rexroth液压阀，Rexroth solenoid valve ,力士乐换向阀，博世电磁阀，Bosch电磁阀，Bosch液压阀，Bosch气动阀，Bosch Rexroth液压元件，力士乐Rexroth节流阀，Bosch Rexroth力士乐截止阀，Bosch博世 Rexroth单向阀，Bosch Rexroth流量阀，Bosch Rexroth比例溢流阀，博世力士乐换向阀，Bosch博世力士乐Rexroth压力阀，Bosch博世Rexroth力士乐比例阀，比例阀, Bosch博世Rexroth力士乐高频响阀和伺服阀，Bosch博世Rexroth力士乐先导式比例方向阀，Bosch博世Rexroth力士乐直动式比例方向阀，力士乐比例流量控制阀，博世力士乐高频响方式阀，博世力士乐伺服阀，力士乐Rexroth比例减压阀,Bosch博世Rexroth力士电子元件,力士乐Bosch Rexroth开关阀，力士乐Bosch Rexroth方向滑阀，力士乐Bosch减压阀，力士乐Bosch Rexroth方流量控制阀，力士乐Bosch Rexroth方截止阀-梭阀，力士乐Bosch Rexroth压力截止阀，力士乐Rexroth插装阀，力士乐Rexroth压力截止阀，力士乐Rexroth控制阀块。

博世Bosch Rexroth力士乐上海优势供应泵系列产品如下

博世力士乐Rexroth轴向柱塞泵，博世力士乐Rexroth径向柱塞泵，博世力士乐Rexroth联泵，博世力士乐Rexroth内啮合齿轮泵，力士乐Rexroth外啮合齿轮泵，博世Bosch Rexroth力士乐叶片泵，博世Bosch Rexroth力士乐变量泵，博世Bosch Rexroth力士乐定量泵