力士乐0811404766比例阀4WRPE10CB80L-20/G24K0/F1M-810

力士乐0811404766比例阀4WRPE10CB80L-20/G24K0/F1M-810，德国REXROTH比例阀，带内置放大器，购买进口液压、气动、自动化控制工业配件，认准“上海韦米机电设备有限公司”，7年老店，保证产品原厂原装，价格优惠，售后无忧，欢迎新老客户咨询采购！
 

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。

(1)比例环节
比例环节也称为无惯性环节,对液压缸或马达，忽略液压油的可压缩性和泄漏,液压缸的流量Q= VA。其中V为活塞速度;A为活塞面积。其传递函数为: g(s)= V (s)/Q(s)= 1/A =式中K为比例环节放大系数或增益,表示输入量经过放大K倍后输出。
(2)比例控制系统
比例控制系统根据有无反馈分为开环控制和闭环控制。如比例阀控制液压缸或马达系统可以实现速度位移转速和转矩等的控制。
由于开环控制系统的精度比较低,无级调节系统输入量就可以无级调节系统输出量力速度以及加减速度等。这种控制系统的结构组成简单,系统的输出端和输入端不存在反馈回路,系统输出量对系统输入控制作用没有影响,没有自动纠正偏差的能力,其控制精度主要取决于关键元器件的特性和系统调整精度，所以只能应用在精度要求不高并且不存在内外干扰的场合。开环控制系统一.般不存在所谓稳定性问题。
闭环控制系统(即反馈控制系统)的优点是对内部和外部干扰不敏感，系统工作原理是反馈控制原理或按偏差调整原理。这种控制系统有通
过负反馈控制自动纠正偏差的能力。但反馈带来了系统的稳定性问题，只要系统稳定，闭环控制系统可以保持较高的精度。因此, 目前普遍采用闭环控制系统。

(1)根据用途和被控对象选择比例阀的类型;
(2)正确了解比例阀的动静态指标主要有额定输出流量、起始电流滞环重复精度额定压力损失温飘、响应特性频率特性等;
(3)根据执行器的工作精度要求选择比例阀的精度,内含反馈闭环阀的稳态性动态品质好。如果比例阀的固有特性如滞环非线性等无法使被控系统达到理想的效果时,可以使用软件程序改善系统的性能;
(4)如果选择带先导阀的比例阀，要注意先导阀对油液污染度的要求。-般应符合ISO 18/5标准,并在油路上加装过滤精度为10um以下的进油过滤器;
(5)比例阀的通径应按执行器在高速度时通过的流量来确定,通径选得过大，会使系统的分辨率降低:
(6)比例阀必须使用与之配套的放大器,阀与放大器的距离应尽可能地短。

电液比例阀是采用了比例控制技术,介于开关型液压阀和电液伺服阀之间的-种液压元件,在工业生产中获得了广泛的应用,输入的电信号有模拟式和数字式两大类,可以用于控制位置(转角)、速度(转速)、加速度(角加速度)、压力(压差)、力(力矩)等参数。电液比例阀等元件可以组成如下三类控制回路和系统
(1)电液比例压力控制回路和系统。例如:用于带钢热连轧机卷取机液压辅助系统的电液比例压力控制回路,用于板带轧机辊缝控制的液压推上系统电液比例压力控制回路,用于带材卷取设备恒张力的闭环电液比例压力控制回路;
(2)电液比例流量控制回路和系统。例如:用于带钢热连轧机精轧机平衡液压系统的电液比例压力控制回路,用于机床微进给的电液比例控制回路,用于旋压机折板机同步的电液比例控制回路,用于电梯的电液比例控制回路;
(3)电液比例多参数控制回路和系统。例如:用于带钢热连轧机精轧换辊液压系统的电液比例压力控制回路,用于液压缸垂直配置而采用wI型阀芯的比例控制回路,用于热轧钢卷步进链式运输机的速度、加减速度控制回路。

电液比例阀是阀内比例电磁铁输入电压信号产生相应动作，使工作阀阀芯产生位移，阀口尺寸发生改变并以此完成与输入电压成比例压力、流量输出元件。阀芯位移也可以以机械、液压或电形式进行反馈。电液比例阀具有形式种类多样、容易组成使用电气及计算机控制各种电液系统、控制精度高、安装使用灵活以及抗污染能力强等多方面优点，应用领域日益拓宽。近年研发生产插装式比例阀和比例多路阀充分考虑到工程机械使用特点，具有先导控制、负载传感和压力补偿等功能。它出现对移动式液压机械整体技术水平提升具有重要意义。特别是电控先导操作、无线遥控和有线遥控操作等方面展现了其良好应用前景。
力士乐0811404766比例阀4WRPE10CB80L-20/G24K0/F1M-810
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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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R901102638 4WRPEH6C3B12L-2X/G24K0/A1V
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R901P74368 4WRPEH6C3B24L-2X/G24K0/A1M-936_PT
R901402817 4WRPEH6C3B24L-2X/G24K0/A1M=KM
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R901208917 4WRPEH6C3B24L-2X/G24K0/F1V-936
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0811404635 4WRPEH6C3B25P-2X/G24K0/B5M
R901348422 4WRPEH6C3B25P-2X/G24K0/F1M
0811404603 4WRPEH6C3B40L-2X/G24K0/A1M
0811404609 4WRPEH6C3B40L-2X/G24K0/A1M-816
R901089738 4WRPEH6C3B40L-2X/G24K0/A1M-818
0811404538 4WRPEH6C3B40L-2X/G24K0/A1V
R901172452 4WRPEH6C3B40L-2X/G24K0/A1V-816
0811404735 4WRPEH6C3B40L-2X/G24K0/B5M
0811404634 4WRPEH6C3B40L-2X/G24K0/F1M
R901172455 4WRPEH6C3B40L-2X/G24K0/F1M-816
R901222495 4WRPEH6C3B40L-2X/G24K0/F1V
R901222207 4WRPEH6C3B40L-2X/G24K0/F1V-816
R901P74370 4WRPEH6C3B40L-2X R901174370-PT
0811404644 4WRPEH6C3B40P-2X/G24K0/A1M
R901246814 4WRPEH6C3B40P-2X/G24K0/A1M-303
0811404637 4WRPEH6C3B40P-2X/G24K0/B5M
R901357059 4WRPEH6C3B40P-2X/G24K0/F1M
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0811404537 4WRPEH6C4B02L-2X/G24K0/F1M
R901284158 4WRPEH6C4B02L-2X/G24K0/F1V
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0811404350 4WRPEH6C4B04L-2X/G24K0/F1M
R901307161 4WRPEH6C4B04L-2X/G24K0/F1V
R901347942 4WRPEH6C4B04P-2X/G24K0/A1M
0811404611 4WRPEH6C4B12L-2X/G24K0/A1M
0811404623 4WRPEH6C4B12L-2X/G24K0/B5M
0811404351 4WRPEH6C4B12L-2X/G24K0/F1M
R901383468 4WRPEH6C4B12L-2X/G24K0/F1V
0811404645 4WRPEH6C4B15P-2X/G24K0/A1M
R901266295 4WRPEH6C4B15P-2X/G24K0/F1M
0811404612 4WRPEH6C4B24L-2X/G24K0/A1M
0811404636 4WRPEH6C4B24L-2X/G24K0/B5M
0811404352 4WRPEH6C4B24L-2X/G24K0/F1M
R901273569 4WRPEH6C4B24L-2X/G24K0/F1V
0811404646 4WRPEH6C4B25P-2X/G24K0/A1M
R901318493 4WRPEH6C4B25P-2X/G24K0/F1M
0811404613 4WRPEH6C4B40L-2X/G24K0/A1M
0811404638 4WRPEH6C4B40L-2X/G24K0/A1V
0811404364 4WRPEH6C4B40L-2X/G24K0/B5M
0811404353 4WRPEH6C4B40L-2X/G24K0/F1M
R901136861 4WRPEH6C4B40L-2X/G24K0/F1V
0811404647 4WRPEH6C4B40P-2X/G24K0/A1M
0811404356 4WRPEH6C4B40P-2X/G24K0/B5M
R901167904 4WRPEH6C4B40P-2X/G24K0/F1M
R901387788 4WRPEH6C4B40L-2X/G24K0/C6V
R901276204 4WRPEH6C5B04L-2X/G24K0/A1M
R901213180 4WRPEH6C5B04L-2X/G24K0/F1M
R901236471 4WRPEH6C5B12L-2X/G24K0/A1M
R901231527 4WRPEH6C5B12L-2X/G24K0/F1M
R901098057 4WRPEH6C5B24L-2X/G24K0/A1M
R901137452 4WRPEH6C5B24L-2X/G24K0/F1M
0811404746 4WRPEH6C5B40L-2X/G24K0/A1M
0811404749 4WRPEH6C5B40L-2X/G24K0/F1M
R901348187 4WRPEH6C5B40L-2X/G24K0/F1V
0811404648 4WRPEH6C5B40P-2X/G24K0/A1M
0811404358 4WRPEH6C6B02L-2X/G24K0/A1M
0811404628 4WRPEH6K3B50P-2X/G24K0/A1M
0811404604 4WRPEH6KB50P-2X/G24K0/A1M
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
R901382520 4WRPEH6CB02L-3X/M/24A1
R901382376 4WRPEH6CB02L-3X/M/24F1
R901382365 4WRPEH6CB04L-3X/M/24A1
R901382374 4WRPEH6CB04L-3X/M/24F1
R901382505 4WRPEH6CB04L-3X/V/24F1
R901382492 4WRPEH6CB04P-3X/M/24A1
R901382334 4WRPEH6CB08P-3X/M/24A1
R901382337 4WRPEH6CB12L-3X/M/24A1
R901382371 4WRPEH6CB12L-3X/M/24F1
R901382530 4WRPEH6CB15P-3X/M/24A1
R901429091 4WRPEH6CB15P-3X/M/24F1
R901381804 4WRPEH6CB24L-3X/M/24A1
R901382372 4WRPEH6CB24L-3X/M/24F1
R901382526 4WRPEH6CB24L-3X/V/24F1
R901382490 4WRPEH6CB25P-3X/M/24A1
R901382353 4WRPEH6CB40L-3X/M/24A1
R901382354 4WRPEH6CB40L-3X/M/24F1
R901438744 4WRPEH6CB40L-3X/V/24A1
R901382630 4WRPEH6CB40P-3X/M/24A1
R901382375 4WRPEH6CB40P-3X/M/24F1
R901382538 4WRPEH6C1B12L-3X/M/24A1
R901436252 4WRPEH6C1B12L-3X/M/24F1
R901382527 4WRPEH6C1B24L-3X/M/24A1
R901382491 4WRPEH6C1B24L-3X/M/24F1
R901423624 4WRPEH6C1B24L-3X/V/24A1
R901382325 4WRPEH6C1B40L-3X/M/24A1
R901382487 4WRPEH6C1B40L-3X/M/24F1
R901382495 4WRPEH6C1B40P-3X/M/24A1
R901396969 4WRPEH6C3B04L-3X/M/24F1-885
R901376972 4WRPEH6C3B24L-3X/V/24F1
R901410492 4WRPEH6C3B40L-3X/M/24A1-15
R901382367 4WRPEH6C3B02L-3X/M/24A1
R901382336 4WRPEH6C3B02L-3X/M/24F1
R901382345 4WRPEH6C3B04L-3X/M/24A1
R901382347 4WRPEH6C3B04L-3X/M/24F1
R901382488 4WRPEH6C3B04L-3X/V/24A1
R901382514 4WRPEH6C3B04L-3X/V/24F1
R901382316 4WRPEH6C3B04P-3X/M/24A1
R901382502 4WRPEH6C3B04P-3X/M/24F1
R901382496 4WRPEH6C3B04P-3X/V/24A1
R901382537 4WRPEH6C3B04P-3X/V/24F1
R901396859 4WRPEH6C3B08L-3X/M/24A1
R901382504 4WRPEH6C3B08L-3X/V/24F1
R901382312 4WRPEH6C3B12L-3X/M/24A1
R901382348 4WRPEH6C3B12L-3X/M/24F1
R901382503 4WRPEH6C3B12L-3X/V/24A1
R901382513 4WRPEH6C3B12L-3X/V/24F1
R901382323 4WRPEH6C3B15P-3X/M/24A1
R901382511 4WRPEH6C3B15P-3X/M/24F1
R901382522 4WRPEH6C3B15P-3X/V/24A1
R901382313 4WRPEH6C3B24L-3X/M/24A1
R901382349 4WRPEH6C3B24L-3X/M/24F1
R901372986 4WRPEH6C3B24L-3X/V/24A1
R901382357 4WRPEH6C3B25P-3X/M/24A1
R901382535 4WRPEH6C3B25P-3X/M/24F1
R901382315 4WRPEH6C3B40L-3X/M/24A1
R901382350 4WRPEH6C3B40L-3X/M/24F1
R901382343 4WRPEH6C3B40L-3X/V/24A1
R901382516 4WRPEH6C3B40L-3X/V/24F1
R901382358 4WRPEH6C3B40P-3X/M/24A1
R901382539 4WRPEH6C3B40P-3X/M/24F1
R901382356 4WRPEH6C4B02L-3X/M/24A1
R901382338 4WRPEH6C4B02L-3X/M/24F1
R901382525 4WRPEH6C4B02L-3X/V/24F1
R901382317 4WRPEH6C4B04L-3X/M/24A1
R901382327 4WRPEH6C4B04L-3X/M/24F1
R901382528 4WRPEH6C4B04L-3X/V/24F1
R901382533 4WRPEH6C4B04P-3X/M/24A1
R901382318 4WRPEH6C4B12L-3X/M/24A1
R901412522 4WRPEH6C4B12L-3X/M/24A1-561
R901382331 4WRPEH6C4B12L-3X/M/24F1
R901431666 4WRPEH6C4B12L-3X/V/24A1
R901382359 4WRPEH6C4B15P-3X/M/24A1
R901382521 4WRPEH6C4B15P-3X/M/24F1
R901382346 4WRPEH6C4B24L-3X/M/24A1
R901382332 4WRPEH6C4B24L-3X/M/24F1
R901382523 4WRPEH6C4B24L-3X/V/24F1
R901382361 4WRPEH6C4B25P-3X/M/24A1
R901382532 4WRPEH6C4B25P-3X/M/24F1
R901382319 4WRPEH6C4B40L-3X/M/24A1
R901382333 4WRPEH6C4B40L-3X/M/24F1
R901382493 4WRPEH6C4B40L-3X/V/24A1
R901382509 4WRPEH6C4B40L-3X/V/24F1
R901382363 4WRPEH6C4B40P-3X/M/24A1
R901382512 4WRPEH6C4B40P-3X/M/24F1
R901382515 4WRPEH6C5B04L-3X/M/24F1
R901382524 4WRPEH6C5B04L-3X/M/24A1
R901382519 4WRPEH6C5B12L-3X/M/24A1
R901382517 4WRPEH6C5B12L-3X/M/24F1
R901382370 4WRPEH6C5B24L-3X/M/24A1
R901382510 4WRPEH6C5B24L-3X/M/24F1
R901408241 4WRPEH6C5B24L-3X/V/24A1
R901382368 4WRPEH6C5B40L-3X/M/24A1
R901382369 4WRPEH6C5B40L-3X/M/24F1
R901382534 4WRPEH6C5B40L-3X/V/24F1
R901382364 4WRPEH6C5B40P-3X/M/24A1
R901382520 4WRPEH6CB02L-30/M/24A1
R901382376 4WRPEH6CB02L-30/M/24F1
R901382365 4WRPEH6CB04L-30/M/24A1
R901382374 4WRPEH6CB04L-30/M/24F1
R901382505 4WRPEH6CB04L-30/V/24F1
R901382492 4WRPEH6CB04P-30/M/24A1
R901382334 4WRPEH6CB08P-30/M/24A1
R901382337 4WRPEH6CB12L-30/M/24A1
R901382371 4WRPEH6CB12L-30/M/24F1
R901382530 4WRPEH6CB15P-30/M/24A1
R901429091 4WRPEH6CB15P-30/M/24F1
R901381804 4WRPEH6CB24L-30/M/24A1
R901382372 4WRPEH6CB24L-30/M/24F1
R901382526 4WRPEH6CB24L-30/V/24F1
R901382490 4WRPEH6CB25P-30/M/24A1
R901382353 4WRPEH6CB40L-30/M/24A1
R901382354 4WRPEH6CB40L-30/M/24F1
R901438744 4WRPEH6CB40L-30/V/24A1
R901382630 4WRPEH6CB40P-30/M/24A1
R901382375 4WRPEH6CB40P-30/M/24F1
R901382538 4WRPEH6C1B12L-30/M/24A1
R901436252 4WRPEH6C1B12L-30/M/24F1
R901382527 4WRPEH6C1B24L-30/M/24A1
R901382491 4WRPEH6C1B24L-30/M/24F1
R901423624 4WRPEH6C1B24L-30/V/24A1
R901382325 4WRPEH6C1B40L-30/M/24A1
R901382487 4WRPEH6C1B40L-30/M/24F1
R901382495 4WRPEH6C1B40P-30/M/24A1
R901396969 4WRPEH6C3B04L-30/M/24F1-885
R901376972 4WRPEH6C3B24L-30/V/24F1
R901410492 4WRPEH6C3B40L-30/M/24A1-15
R901382367 4WRPEH6C3B02L-30/M/24A1
R901382336 4WRPEH6C3B02L-30/M/24F1
R901382345 4WRPEH6C3B04L-30/M/24A1
R901382347 4WRPEH6C3B04L-30/M/24F1
R901382488 4WRPEH6C3B04L-30/V/24A1
R901382514 4WRPEH6C3B04L-30/V/24F1
R901382316 4WRPEH6C3B04P-30/M/24A1
R901382502 4WRPEH6C3B04P-30/M/24F1
R901382496 4WRPEH6C3B04P-30/V/24A1
R901382537 4WRPEH6C3B04P-30/V/24F1
R901396859 4WRPEH6C3B08L-30/M/24A1
R901382504 4WRPEH6C3B08L-30/V/24F1
R901382312 4WRPEH6C3B12L-30/M/24A1
R901382348 4WRPEH6C3B12L-30/M/24F1
R901382503 4WRPEH6C3B12L-30/V/24A1
R901382513 4WRPEH6C3B12L-30/V/24F1
R901382323 4WRPEH6C3B15P-30/M/24A1
R901382511 4WRPEH6C3B15P-30/M/24F1
R901382522 4WRPEH6C3B15P-30/V/24A1
R901382313 4WRPEH6C3B24L-30/M/24A1
R901382349 4WRPEH6C3B24L-30/M/24F1
R901372986 4WRPEH6C3B24L-30/V/24A1
R901382357 4WRPEH6C3B25P-30/M/24A1
R901382535 4WRPEH6C3B25P-30/M/24F1
R901382315 4WRPEH6C3B40L-30/M/24A1
R901382350 4WRPEH6C3B40L-30/M/24F1
R901382343 4WRPEH6C3B40L-30/V/24A1
R901382516 4WRPEH6C3B40L-30/V/24F1
R901382358 4WRPEH6C3B40P-30/M/24A1
R901382539 4WRPEH6C3B40P-30/M/24F1
R901382356 4WRPEH6C4B02L-30/M/24A1
R901382338 4WRPEH6C4B02L-30/M/24F1
R901382525 4WRPEH6C4B02L-30/V/24F1
R901382317 4WRPEH6C4B04L-30/M/24A1
R901382327 4WRPEH6C4B04L-30/M/24F1
R901382528 4WRPEH6C4B04L-30/V/24F1
R901382533 4WRPEH6C4B04P-30/M/24A1
R901382318 4WRPEH6C4B12L-30/M/24A1
R901412522 4WRPEH6C4B12L-30/M/24A1-561
R901382331 4WRPEH6C4B12L-30/M/24F1
R901431666 4WRPEH6C4B12L-30/V/24A1
R901382359 4WRPEH6C4B15P-30/M/24A1
R901382521 4WRPEH6C4B15P-30/M/24F1
R901382346 4WRPEH6C4B24L-30/M/24A1
R901382332 4WRPEH6C4B24L-30/M/24F1
R901382523 4WRPEH6C4B24L-30/V/24F1
R901382361 4WRPEH6C4B25P-30/M/24A1
R901382532 4WRPEH6C4B25P-30/M/24F1
R901382319 4WRPEH6C4B40L-30/M/24A1
R901382333 4WRPEH6C4B40L-30/M/24F1
R901382493 4WRPEH6C4B40L-30/V/24A1
R901382509 4WRPEH6C4B40L-30/V/24F1
R901382363 4WRPEH6C4B40P-30/M/24A1
R901382512 4WRPEH6C4B40P-30/M/24F1
R901382515 4WRPEH6C5B04L-30/M/24F1
R901382524 4WRPEH6C5B04L-30/M/24A1
R901382519 4WRPEH6C5B12L-30/M/24A1
R901382517 4WRPEH6C5B12L-30/M/24F1
R901382370 4WRPEH6C5B24L-30/M/24A1
R901382510 4WRPEH6C5B24L-30/M/24F1
R901408241 4WRPEH6C5B24L-30/V/24A1
R901382368 4WRPEH6C5B40L-30/M/24A1
R901382369 4WRPEH6C5B40L-30/M/24F1
R901382534 4WRPEH6C5B40L-30/V/24F1
R901382364 4WRPEH6C5B40P-30/M/24A1
力士乐REXROTH四位四通高频单向阀门，直接驱动，具有集成电子和电气位置反馈（OBE）4WRPEH 10
0811404809 4WRPEH10CB100L-2X/G24K0/A1M
R901416810 4WRPEH10CB100L-2X/G24K0/A1V
0811404806 4WRPEH10CB100L-2X/G24K0/F1M
R901233486 4WRPEH10CB100L-2X/G24K0/F1V
R901236409 4WRPEH10CB100P-2X/G24K0/F1M
0811404764 4WRPEH10CB50L-2X/G24K0/A1M
0811404765 4WRPEH10CB50L-2X/G24K0/F1M
R901295068 4WRPEH10CB50L-2X/G24K0/F1V
0811404816 4WRPEH10CB50P-2X/G24K0/F1M
0811404821 4WRPEH10C1B100L-2X/G24K0/A1M
R901279150 4WRPEH10C1B100L-2X/G24K0/A1V
0811404763 4WRPEH10C1B100L-2X/G24K0/F1M
0811404829 4WRPEH10C1B100P-2X/G24K0/A1M
0811404820 4WRPEH10C1B50L-2X/G24K0/A1M
0811404762 4WRPEH10C1B50L-2X/G24K0/F1M
0811404828 4WRPEH10C1B50P-2X/G24K0/A1M
0811404801 4WRPEH10C3B100L-2X/G24K0/A1M
0811404879 4WRPEH10C3B100L-2X/G24K0/A1M-844
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0811404817 4WRPEH10C3B100L-2X/G24K0/F1M
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R901422438 4WRPEH10C5B100L-2X/G24K0/A1V-36
力士乐REXROTH高响应的换向阀，直接操作，集成的数字轴控制器（IAC多以太网）4WRPDH
R901415733 4WRPDH10C1B100L-2X/M/24ND6T
R901372234 4WRPDH10C3B100L-2X/M/24SD6T
R901372818 4WRPDH10C3B100L-2X/M/24TD6T
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R901339086 4WRPDH10C4B100L-2X/M/24ED6T
R901395440 4WRPDH10C4B100L-2X/M/24TD6T
R901428266 4WRPDH10C5B100L-2X/M/24ND6T
R901426772 4WRPDH10C5B50L-2X/M/24ND6T
R901428555 4WRPDH6CB02L-2X/M/24ND6T
R901375537 4WRPDH6CB40P-2X/M/24ND6T
R901416340 4WRPDH6C1B40L-2X/M/24ED6T
R901368366 4WRPDH6C3B04L-2X/M/24SD6T
R901430058 4WRPDH6C3B12L-2X/M/24ND6T
R901372111 4WRPDH6C3B12L-2X/M/24SD6T
R901372816 4WRPDH6C3B12L-2X/M/24TD6T
R901329736 4WRPDH6C3B15P-2X/M/24SD6S
R901157482 4WRPDH6C3B15P-2X/M/24SD6U
R901327738 4WRPDH6C3B15P-2X/M/24SD6U-995
R901368365 4WRPDH6C3B24L-2X/M/24SD6U
R901438459 4WRPDH6C3B40L-2X/M/24ED6T
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R901368364 4WRPDH6C3B40L-2X/M/24SD6U
R901435066 4WRPDH6C3B40L-2X/M/24SD6U-995
R901384132 4WRPDH6C3B40L-2X/M/24TD6T
R901156750 4WRPDH6C3B40P-2X/M/24ND6T
R901157481 4WRPDH6C3B40P-2X/M/24SD6U
R901320208 4WRPDH6C3B40P-2X/M/24SD6U-995
R901408363 4WRPDH6C4B04L-2X/M/24ND6T
R901408691 4WRPDH6C4B12L-2X/M/24SD6S
R901408693 4WRPDH6C4B12L-2X/M/24SD6T
R901353429 4WRPDH6C4B12L-2X/M/24SD6U
R901407421 4WRPDH6C4B15P-2X/M/24ED6T
R901358982 4WRPDH6C4B15P-2X/M/24SD6U
R901376440 4WRPDH6C4B25P-2X/M/24ED6T
R901420336 4WRPDH6C4B25P-2X/M/24SD6U-83
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R901436807 4WRPDH6C4B40L-2X/V/24ED6T
R901401587 4WRPDH6C4B40P-2X/M/24ND6T
R901410170 4WRPDH6C5B04L-2X/M/24ND6T
R901405782 4WRPDH6C5B40P-2X/M/24ND6U
力士乐REXROTH带集成的数字轴控制器的高响应阀（iac-r）和现场总线接口4WRPNH../24C/P
0811403362 4WRPNH10CB100L-2X/M/24PF6G
R901280661 4WRPNH10C1B100L-2X/M/24CA6B
R901347466 4WRPNH10C1B100L-2X/M/24PA6A
R901228303 4WRPNH10C1B100L-2X/M/24PA6B
R901224752 4WRPNH10C1B100L-2X/M/24PF6G
R901224856 4WRPNH10C1B100P-2X/M/24PF6G
比例控制阀
采用比例电磁铁(或力矩马达)将输入信号转换成力或阀的机械位移，使阀的输出(压力、流量)也按照其输入量连续、成比例地进行控制的阀。
大型钢厂现场使用的比例阀主要有下表中的几种:伺服比例控制阀、比例控制阀、电液比例控制阀，比例阀，伺服阀。
1、4WRD E..型比例伺服控制阀(高频响阀)
结构和功能
4WRDE型阀是三级高频响方向阀。该阀可用于开环控制或闭环调节液流的大小和方向，但主要用于闭环调节回路中。
阀主要由下列部分组成:
1.二级先导控制阀由力矩马达( 1 )和由喷嘴挡板阀构成的液压放大器( 5),和用作流量放大级的阀芯衬套组件(6 )(用以控制第三级(7 ))组成。
2.第三级(7)用于流量控制。
3.感应式位移传感器( 8),连接第三级主阀芯( 10)的磁芯(9 )
通过内置电子放大器实现阀闭环控制信号逻辑连接,位置检测系统反馈,和先导阀的控制。
给定值/实际值比较得到的差动电压经过电子控制器放大, 并作为控制偏差量传递到阀的一级。这个信号推动两个控制喷嘴( 3.1, 3.2) 之间的挡板( 2)因而在两个控制腔(11.1.11.2)产生了压差。控制阀芯(4 )因此被推动,并通过相应的液流流到弹簧腔(12.1or12.2)阀芯(10)和带磁芯(9)的位移传感器(8)-直运动,直到实际值和给定值信号再一次相等。在控制条件下;主阀芯( 10 )一直被保持在给定值所对应的位置。
阀芯行程和给定值成正比。通过阀芯( 10 )相对于控制边( 13 )的位置,形成相应的与流量成正比的阀口开度。
阀的动态特性通过电子放大器优化。电子放大器内置于阀上(振荡器,解调器)
零点调节由厂家预先设定,通过闭环控制电子放大器内的电位器, 零点能在名义行程士10%范围内调整。移去阀盖尾部的插头,可以对内置闭环电子放大器进行操作。

2、4WREE..型比例控制阀
1.结构和功能原理
该二位四通和三位四通比例方 向阀为直控,板式结构;由比例电磁操作,比例电磁.带中心螺纹,圈可单独拆卸,电磁的控制可通过外部放大器( WRA型)或内置的放大器(WRAE型)实现。
结构:
该阀由下列部分组成:
带安装底面的阀体( 1 )
带弹簧(3和4)的控制阀芯(2 )
带中心螺纹的电磁铁( 5和6 )
位移传感器(7 )
可选带内置放大器( 8 )
机械零位调整(9 ),
工作原理:
电磁铁(5和6 )不带电时,对中弹簧(3和4 )将控制阀芯(2 )保持在中位
比例电磁铁得电被激励后,会直接推动控制阀芯( 2),例如:控制电磁"b" (6 )被激励，控制阀芯(2)被推向左侧,位移与输入电信号成比例,这时,P口至A口及B口至T口通过阀芯与阀体形成的节流沟通并具有渐进的流量特性。电磁铁( 6 )失电控制.阀芯(2)被对中弹簧(3)重新推回中位。
在电磁铁失电的情况下,阀芯( 2 )在电磁跌复位弹簧的作用保持在机械中位。这对机能符号”V”的阀芯来说,与液压中位无关!当阀用于闭环控制而关闭时,阀芯则置于液压中位。
必须避免回油管路中的油全部排空, 必要时在回路中安装背压阀(背压约2 bar)。

3、4WR...型比例控制阀
3.结构和功能原理
先导控制阀型号3DREP 6... 该先导阀是一个由比例电磁铁控制的三通减压阀,它的作用是将一个输入的电信号转化为一个与其成比例的压力输出信号,可用于所有的4WRZ..和5WR...型比例阀的控制。
比例电磁铁是可调式,湿式直流电磁结构,带中心螺纹,线圈可单独拆卸;电磁铁控制可通过外部放大器( WRZ型)或内置的放大器( WRZE型)来实现。
结构:
该阀主要由下列部分组成:
(1)带有安装底面的壳体( 1 );
(2)装有压力测量活塞(3和4)的控制阀芯(2 );
(3)带中心螺纹电磁铁( 5和6);
(4)可选带内置放大器( 7 )
工作原理:
(1)当电磁铁(5和6)不带电时,对中弹簧将控制阀芯(2)保持在中位;
(2)比例电磁铁带电被激励后, 会直接推动控制阀芯( 2),例如:电磁”a” (5)被激励;
(3)控制阀芯(2)和压力测量活塞(3)被推向左侧;
(4)位移与输入的电信号成比例。
这时,P口与B口及A口与T口通过阀芯与阀体形成的节流口1接通，节流特性为渐进式。如果电磁铁(5 )失电,控制阀芯( 2 )被弹簧重新推回中位。在先导阀的中位，A口、B口和T口相通,这也意味着油液可以从这里直接回油箱。

先导式比例方向阀, 型号4WRZ..和5WRZ.. , 4WRZ..型阀是先导式、比例电磁铁
控制的四通方向阀,它可控制液流的方向和大小。
结构:
该阀主要由下列部分组成:
(1)装有比例电磁. (5和6 )的先导控制阀( 9 )
(2)装有主阀芯(11)和对中弹簧(12)的主阀(10)
工作原理:
(1)当电磁铁(5和6)不带电时,对中弹簧(12)将主阀芯(11)保持在中位。
(2)主阀芯(11)的动作由先导阀(9)来控制-它会间接地被电磁铁”b"(6)成比例地推动。首先控制阀芯( 2 )被推向右侧,控制油经过先导阀(9 )进入控制腔( 13 )，并与输入信号成比例地推动主阀芯( 11 ), 这时,P口与A口及B口与T口通过阀芯与阀体形成的节流口接通,节流特性为渐进式。
(3)先导阀所需的控制油液可通过P口内供或X口外供。
(4)如果电磁铁(6)失电,控制阀芯( 2 )和主阀芯( 11 )会重新回到中位。
(5)随着主阀芯位置的不同, P口与A口、B口与T口(R)接通或P口与B口、A口与T口(R)通。可选保护罩手动应急操作( 14和15 ),它可使先导阀芯( 2 )在电磁不通电的情况下移动。