4WREE10W75-2X/G24K31/F1V比例阀

4WREE10W75-2X/G24K31/F1V比例阀 德国博世力士乐REXROTH比例阀 比例溢流阀

二位四通和三位四通比例方向直控阀，阀芯带位移反馈

型号 4WRE 和 4WREE

通经6 和 10

2X 系列

高工作压力 315 bar

大流量 80 L/min (NS6)

大流量 180 L/min (NS6)

特点：

— 直控式比例换向阀可以控制液流的方向和大小

— 阀的控制通过带中心螺纹的比例电磁铁实现，线圈可单   独拆卸

— 带电反馈

— 板式连接结构 孔型符合：DIN 24 340 , A 型，ISO        4401  和 CETOP-RP 121 H

— 控制阀芯由弹簧对中

— 4WREE型带内置放大器，接口形式为A1或F1

— 4WRE型使用的放大器：

   * 数字式放大器VT-VRPD-2-1X/V0/0

   * 模拟式放大器VT-VRPA2-，-1X

工作原理：二位四通和三位四通比例方向阀为直控，板式结构；由比例电磁铁操作，比例电磁铁带中心螺纹，线圈可单独拆卸，电磁铁的控制可通过外部放大器（WRE型）或内置的放大器（WREE型）

举例型号：4WREE10E75-2X/G24K31/A1V  

4WRE →直控式比例换向阀，板式结构

E    →带内置放大器（无E可通过连接外部放大器）

10   → 10通经（也有6通经等）

E    →机能符号（也有E1-、V、W、W1-、EA、WA等）

75   →阀的压差为10bar时的额定流量(NS10) 75 L/min 

       （也有(NS6)08、16、32，(NS10)25、50、75等）

2X   →20至29系列（20至29：安装和连接尺寸不变）

G24  →24V直流电源

K31  →带符合E DIN 43 563-AM6-3的插座,不带插头 插头       需单独订货(K4指带符合DIN 43 650-AM2的插座 不       带插头)

A1   →WREE型A1或F1接口：给定值输入±10 V(F1=给定值        输入4至20mA)

V    →氟橡胶矩形密封圈 符合DIN 51 524 标准的液压油       （HL,HLP）

比例电磁铁的类型按照工作原理主要分为

如下几类:

(1)力控制型

这类电磁铁的行程短，只有1 5mm,输出力与输入电流成正比,常用在比例阀的先导控制级

上:

(2)行程控制型

由力控制型加负载弹簧共同组成，电磁铁输出的力通过弹簧转换成输出位移,输出位移与输入电流成正比，工作行程达3mm,线性好，可以用在直控式比例阀上;

(3)位置调节型

衔铁的位置由传感器检测后,发出一个阀内反馈信号,在阀内进行比较后重新调节衔铁的位置。阀内形成闭环控制,精度高,衔铁的位置与力

无关，精度高的比例阀如德国的博世意大利的阿托斯等都采用这种结构。

比例阀与放大器配套使用放大器采用电流负反馈,设置斜坡信号发生器阶跃函数发生器、PD调节器反向器等,控制升压降压时间或运动加速度及减速度。断电时, 能使阀芯处于安全位置。

比例电磁铁和液压阀组成电液比例阀。由于比例电磁铁可以在不同的电流下得到不同的力(或行程),因此可以无级改变压力、流量。故比例电磁铁是比例阀的关键元件。

液压系统的组成及其作用

一个完整的液压系统由五个部分组成，即动力元件、执行元件、控制元件、辅助元件(附件)和液压油。

动力元件的作用是将原动机的机械能转换成液体的压力能，指液压系统中的油泵，它向整个液压系统提供动力。液压泵的结构形式一般有齿轮泵、叶片泵和柱塞泵。

执行元件(如液压缸和液压马达)的作用是将液体的压力能转换为机械能，驱动负载作直线往复运动或回转运动。

控制元件(即各种液压阀)在液压系统中控制和调节液体的压力、流量和方向。根据控制功能的不同，液压阀可分为村力控制阀、流量控制阀和方向控制阀。压力控制阀又分为益流阀(安全阀)、诚压阀、顺序阀、压力继电器等;流量控制阀包括节流阀、调整阀、分流集流阀等，方向控制阀包括单向阀、液控单向阀、梭阀、换向阀等。根据控制方式不同，液压阀可分为开关式控制阀、定值控制阀和比例控制阀。 

液压系统比例阀型号

力士乐REXROTH二位四通和三位四通比例方向阀直控式，阀芯带位移电反馈，带集成式放大版（OBE）4WREE

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R901355277 4WREE6W32-2X=G24K31/A1V

R900761481 4WREE6W9-16-2X/G24K31/A1V

R900783449 4WREE6W9-32-2X/G24K31/A1V

R901185980 4WREE6WA04-2X/G24K31/F1V

R900973482 4WREE6WA08-2X/G24K31/A1V

R901180378 4WREE6WA08-2X/G24K31/F1V

R900974247 4WREE6WA16-2X/G24K31/A1V

R900617766 4WREE6WA16-2X/G24K31/F1V

R900926997 4WREE6WA32-2X/G24K31/A1V

R900964934 4WREE6WA32-2X/G24K31/F1V

R900780141 4WREE6WB32-2X/G24K31/A1V

R978907329 4WREE10E50-2X/G24K31/A1VSO43A-1595

R978900573 4WREE10V75-2X/G24K31/A1VSO43A-1505

R987373453 4WREE10V75-2X/G24K31/A1V-S047-906

R978902912 4WREE10W75-2X/G24K31/A1VSO43A-1547

R978919605 4WREE10W75-2X/G24K31/A1VSO43A-1733

R978014651 4WREE6V08-2X/G24K31/F1VSO43A-1485

R978008628 4WREE6V08-2X/G24K31/F1VSO43A-1639

R978915950 4WREE6V16-2X/G24K31/A1VSO43A-1639

R978917001 4WREE6V16-2X/G24K31/F1VSO43A-1639

R978899985 4WREE6V32-2X/G24K31/A1VSO43A-1485

R978912989 4WREE6V32-2X/G24K31/F1VSO43A-1639

力士乐REXROTH三位四通比例方向阀，直接操作、集成式放大版（OBE）4WREEM

R901395707 4WREEM10E1-25-2X/G24K34/B6V

R900787894 4WREEM10E1-50-2X/G24K34/B6V

R901090746 4WREEM10E1-75-2X/G24K34/B6V

R901246417 4WREEM10E1-75-2X=G24K34/B6V

R900727833 4WREEM10E25-2X/G24K34/B6V

R900246856 4WREEM10E50-2X/G24K34/B6V

R900246617 4WREEM10E75-2X/G24K34/B6V

R901084068 4WREEM10R3-75-2X/G24K34/B6V

R901030889 4WREEM10W1-50-2X/G24K34/B6V

R901083029 4WREEM10W1-75-2X/G24K34/B6V

R901199059 4WREEM10W25-2X/G24K34/B6V

R901326891 4WREEM10W50-2X/G24K34/B6V

R901008707 4WREEM10W75-2X/G24K34/B6V

R900778356 4WREEM6E04-2X/G24K34/B6V

R900246858 4WREEM6E08-2X/G24K34/B6V

R901229220 4WREEM6E1-08-2X/G24K34/B6V

R900778354 4WREEM6E1-16-2X/G24K34/B6V

R901037662 4WREEM6E1-32-2X/G24K34/B6V

R900246618 4WREEM6E16-2X/G24K34/B6V

R901289420 4WREEM6E16J-2X/G24K34/B6V-970

R901426156 4WREEM6E32-2X/G24K34/B6M

R900707192 4WREEM6E32-2X/G24K34/B6V

R987067798 4WREEM6E32J-2X/G24K34/B6V-687-SO280

R901132922 4WREEM6W04-2X/G24K34/B6V

R901264639 4WREEM6W08-2X/G24K34/B6V

R901092221 4WREEM6W1-08-2X/G24K34/B6V

R900778355 4WREEM6W1-16-2X/G24K34/B6V

R901037664 4WREEM6W1-32-2X/G24K34/B6V

R901267817 4WREEM6W1-32-2X=G24K34/B6V

R900781690 4WREEM6W16-2X/G24K34/B6V

R901005786 4WREEM6W32-2X/G24K34/B6V

R901311217 4WREEM6W9-32-2X/G24K34/B6V

力士乐REXROTH三位四通比例方向阀集成数字电子技术和现场总线接口（ifb-p）4WREF

R901199854 4WREF10E1-50-2X/V-24PF1

R901237555 4WREF10E1-75-2X/V-24CA1

R901063517 4WREF10E3-50-2X/V-24CA1

R901086513 4WREF10E3-75-2X/V-24CA1

R901307853 4WREF10E50-2X/V-24PF1

R900777136 4WREF10R75-2X/V-24CA1

R901336242 4WREF10V50-2X/V-24PA1

R901330401 4WREF10V50-2X/V-24PF1

R901175384 4WREF10V75-2X/V-24PF1

R901339023 4WREF10W1-75-2X/V-24PA1

R901202857 4WREF10W25-2X/V-24CA1

R901198531 4WREF10W50-2X/V-24PA1

R901290444 4WREF10W75-2X/V-24CA1

R901320028 4WREF10W75-2X/V-24PA1

R901315938 4WREF10W75-2X/V-24PF1

R901253100 4WREF6E08-2X/V-24CA1

R901308252 4WREF6E08-2X/V-24CF1

R901320631 4WREF6E08-2X/V-24PA1

R901143027 4WREF6E16-2X/V-24CA1

R901357403 4WREF6E16-2X/V-24PF1

R901053294 4WREF6E3-32-2X/V-24CA1

R901052649 4WREF6E32-2X/V-24CA1

R901125908 4WREF6E32-2X/V-24PA1

R901125909 4WREF6E32-2X/V-24PF1

R901336220 4WREF6V08-2X/V-24PA1

R901292739 4WREF6W08-2X/V-24CA1

R901282798 4WREF6W08-2X/V-24CF1

R901318887 4WREF6W08-2X/V-24PA1

R901279598 4WREF6W16-2X/V-24CA1

R901308908 4WREF6W16-2X/V-24PF1

R901078764 4WREF6W32-2X/V-24CA1

R901320026 4WREF6W32-2X/V-24PA1

力士乐REXROTH三位四通比例方向阀，直动式，与PQ的功能4WREQ

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