力士樂(lè)0811404766比例閥4WRPE10CB80L-20/G24K0/F1M-810，德國(guó)REXROTH比例閥，帶內(nèi)置放大器，購(gòu)買進(jìn)口液壓、氣動(dòng)、自動(dòng)化控制工業(yè)配件，認(rèn)準(zhǔn)“上海韋米機(jī)電設(shè)備有限公司”，7年老店，保證產(chǎn)品原廠原裝，價(jià)格優(yōu)惠，售后無(wú)憂，歡迎新老客戶咨詢采購(gòu)！
 

比例電磁鐵的類型按照工作原理主要分為
如下幾類:
(1)力控制型
這類電磁鐵的行程短，只有1 5mm,輸出力與輸入電流成正比,常用在比例閥的先導(dǎo)控制級(jí)
上:
(2)行程控制型
由力控制型加負(fù)載彈簧共同組成，電磁鐵輸出的力通過(guò)彈簧轉(zhuǎn)換成輸出位移,輸出位移與輸入電流成正比，工作行程達(dá)3mm,線性好，可以用在直控式比例閥上;
(3)位置調(diào)節(jié)型
銜鐵的位置由傳感器檢測(cè)后,發(fā)出一個(gè)閥內(nèi)反饋信號(hào),在閥內(nèi)進(jìn)行比較后重新調(diào)節(jié)銜鐵的位置。閥內(nèi)形成閉環(huán)控制,精度高,銜鐵的位置與力
無(wú)關(guān)，精度高的比例閥如德國(guó)的博世意大利的阿托斯等都采用這種結(jié)構(gòu)。
比例閥與放大器配套使用放大器采用電流負(fù)反饋,設(shè)置斜坡信號(hào)發(fā)生器階躍函數(shù)發(fā)生器、PD調(diào)節(jié)器反向器等,控制升壓降壓時(shí)間或運(yùn)動(dòng)加速度及減速度。斷電時(shí), 能使閥芯處于安全位置。
比例電磁鐵和液壓閥組成電液比例閥。由于比例電磁鐵可以在不同的電流下得到不同的力(或行程),因此可以無(wú)級(jí)改變壓力、流量。故比例電磁鐵是比例閥的關(guān)鍵元件。

(1)比例環(huán)節(jié)
比例環(huán)節(jié)也稱為無(wú)慣性環(huán)節(jié),對(duì)液壓缸或馬達(dá)，忽略液壓油的可壓縮性和泄漏,液壓缸的流量Q= VA。其中V為活塞速度;A為活塞面積。其傳遞函數(shù)為: g(s)= V (s)/Q(s)= 1/A =式中K為比例環(huán)節(jié)放大系數(shù)或增益,表示輸入量經(jīng)過(guò)放大K倍后輸出。
(2)比例控制系統(tǒng)
比例控制系統(tǒng)根據(jù)有無(wú)反饋分為開環(huán)控制和閉環(huán)控制。如比例閥控制液壓缸或馬達(dá)系統(tǒng)可以實(shí)現(xiàn)速度位移轉(zhuǎn)速和轉(zhuǎn)矩等的控制。
由于開環(huán)控制系統(tǒng)的精度比較低,無(wú)級(jí)調(diào)節(jié)系統(tǒng)輸入量就可以無(wú)級(jí)調(diào)節(jié)系統(tǒng)輸出量力速度以及加減速度等。這種控制系統(tǒng)的結(jié)構(gòu)組成簡(jiǎn)單,系統(tǒng)的輸出端和輸入端不存在反饋回路,系統(tǒng)輸出量對(duì)系統(tǒng)輸入控制作用沒(méi)有影響,沒(méi)有自動(dòng)糾正偏差的能力,其控制精度主要取決于關(guān)鍵元器件的特性和系統(tǒng)調(diào)整精度，所以只能應(yīng)用在精度要求不高并且不存在內(nèi)外干擾的場(chǎng)合。開環(huán)控制系統(tǒng)一.般不存在所謂穩(wěn)定性問(wèn)題。
閉環(huán)控制系統(tǒng)(即反饋控制系統(tǒng))的優(yōu)點(diǎn)是對(duì)內(nèi)部和外部干擾不敏感，系統(tǒng)工作原理是反饋控制原理或按偏差調(diào)整原理。這種控制系統(tǒng)有通
過(guò)負(fù)反饋控制自動(dòng)糾正偏差的能力。但反饋帶來(lái)了系統(tǒng)的穩(wěn)定性問(wèn)題，只要系統(tǒng)穩(wěn)定，閉環(huán)控制系統(tǒng)可以保持較高的精度。因此, 目前普遍采用閉環(huán)控制系統(tǒng)。

(1)根據(jù)用途和被控對(duì)象選擇比例閥的類型;
(2)正確了解比例閥的動(dòng)靜態(tài)指標(biāo)主要有額定輸出流量、起始電流滯環(huán)重復(fù)精度額定壓力損失溫飄、響應(yīng)特性頻率特性等;
(3)根據(jù)執(zhí)行器的工作精度要求選擇比例閥的精度,內(nèi)含反饋閉環(huán)閥的穩(wěn)態(tài)性動(dòng)態(tài)品質(zhì)好。如果比例閥的固有特性如滯環(huán)非線性等無(wú)法使被控系統(tǒng)達(dá)到理想的效果時(shí),可以使用軟件程序改善系統(tǒng)的性能;
(4)如果選擇帶先導(dǎo)閥的比例閥，要注意先導(dǎo)閥對(duì)油液污染度的要求。-般應(yīng)符合ISO 18/5標(biāo)準(zhǔn),并在油路上加裝過(guò)濾精度為10um以下的進(jìn)油過(guò)濾器;
(5)比例閥的通徑應(yīng)按執(zhí)行器在高速度時(shí)通過(guò)的流量來(lái)確定,通徑選得過(guò)大，會(huì)使系統(tǒng)的分辨率降低:
(6)比例閥必須使用與之配套的放大器,閥與放大器的距離應(yīng)盡可能地短。

電液比例閥是采用了比例控制技術(shù),介于開關(guān)型液壓閥和電液伺服閥之間的-種液壓元件,在工業(yè)生產(chǎn)中獲得了廣泛的應(yīng)用,輸入的電信號(hào)有模擬式和數(shù)字式兩大類,可以用于控制位置(轉(zhuǎn)角)、速度(轉(zhuǎn)速)、加速度(角加速度)、壓力(壓差)、力(力矩)等參數(shù)。電液比例閥等元件可以組成如下三類控制回路和系統(tǒng)
(1)電液比例壓力控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)卷取機(jī)液壓輔助系統(tǒng)的電液比例壓力控制回路,用于板帶軋機(jī)輥縫控制的液壓推上系統(tǒng)電液比例壓力控制回路,用于帶材卷取設(shè)備恒張力的閉環(huán)電液比例壓力控制回路;
(2)電液比例流量控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)精軋機(jī)平衡液壓系統(tǒng)的電液比例壓力控制回路,用于機(jī)床微進(jìn)給的電液比例控制回路,用于旋壓機(jī)折板機(jī)同步的電液比例控制回路,用于電梯的電液比例控制回路;
(3)電液比例多參數(shù)控制回路和系統(tǒng)。例如:用于帶鋼熱連軋機(jī)精軋換輥液壓系統(tǒng)的電液比例壓力控制回路,用于液壓缸垂直配置而采用wI型閥芯的比例控制回路,用于熱軋鋼卷步進(jìn)鏈?zhǔn)竭\(yùn)輸機(jī)的速度、加減速度控制回路。

電液比例閥是閥內(nèi)比例電磁鐵輸入電壓信號(hào)產(chǎn)生相應(yīng)動(dòng)作，使工作閥閥芯產(chǎn)生位移，閥口尺寸發(fā)生改變并以此完成與輸入電壓成比例壓力、流量輸出元件。閥芯位移也可以以機(jī)械、液壓或電形式進(jìn)行反饋。電液比例閥具有形式種類多樣、容易組成使用電氣及計(jì)算機(jī)控制各種電液系統(tǒng)、控制精度高、安裝使用靈活以及抗污染能力強(qiáng)等多方面優(yōu)點(diǎn)，應(yīng)用領(lǐng)域日益拓寬。近年研發(fā)生產(chǎn)插裝式比例閥和比例多路閥充分考慮到工程機(jī)械使用特點(diǎn)，具有先導(dǎo)控制、負(fù)載傳感和壓力補(bǔ)償?shù)裙δ堋Ｋ�出現(xiàn)對(duì)移動(dòng)式液壓機(jī)械整體技術(shù)水平提升具有重要意義。特別是電控先導(dǎo)操作、無(wú)線遙控和有線遙控操作等方面展現(xiàn)了其良好應(yīng)用前景。
力士樂(lè)0811404766比例閥4WRPE10CB80L-20/G24K0/F1M-810
力士樂(lè)REXROTH帶電氣位置反饋的高響應(yīng)閥（LVDT的直流/直流±10 V）4WRPH 6
R901391845 4WRPH6CA24L-2X/G24Z4/V-855
R901391846 4WRPH6CA40L-2X/G24Z4/V-855
R901265937 4WRPH6CB24L-2X/G24Z4/M
0811404128 4WRPH6CB24L-2X/G24Z4/M-855
0811404131 4WRPH6CB24L-2X/G24Z4/M-862
R901111516 4WRPH6CB24L-2X/G24Z4/V-855
0811404172 4WRPH6CB25P-2X/G24Z4/M
0811404129 4WRPH6CB40L-2X/G24Z4/M-855
0811404130 4WRPH6CB40L-2X/G24Z4/M-859
R901111518 4WRPH6CB40L-2X/G24Z4/V-855
0811404513 4WRPH6C1B40L-2X/G24Z4/M
0811404162 4WRPH6C1B40P-2X/G24Z4/M
0811404049 4WRPH6C3A04P-2X/G24Z4/M
0811404041 4WRPH6C3B02L-2X/G24Z4/M
0811404033 4WRPH6C3B04L-2X/G24Z4/M
0811404042 4WRPH6C3B04P-2X/G24Z4/M
R901097266 4WRPH6C3B08L-2X/G24Z4/M-841
0811404179 4WRPH6C3B12L-2X/G24K0/M-784
0811404034 4WRPH6C3B12L-2X/G24Z4/M
0811404161 4WRPH6C3B12L-2X/G24Z4/M-561
0811404047 4WRPH6C3B15P-2X/G24Z4/M
0811404520 4WRPH6C3B24L-2X/G24K0/M-784
0811404035 4WRPH6C3B24L-2X/G24Z4/M
0811404164 4WRPH6C3B24L-2X/G24Z4/M-561
R901402609 4WRPH6C3B24L-2X/G24Z4/M=KM
0811404043 4WRPH6C3B25P-2X/G24Z4/M
0811404036 4WRPH6C3B40L-2X/G24Z4/M
0811404036 4WRPH6C3B40L-20/G24Z4/M
0811404174 4WRPH6C3B40L-2X/G24Z4/M-561
0811404044 4WRPH6C3B40P-2X/G24Z4/M
0811404515 4WRPH6C4B02L-2X/G24Z4/M
0811404160 4WRPH6C4B04L-2X/G24Z4/M
0811404037 4WRPH6C4B12L-2X/G24Z4/M
0811404514 4WRPH6C4B12L-2X/G24Z4/V
0811404048 4WRPH6C4B15P-2X/G24Z4/M
0811404038 4WRPH6C4B24L-2X/G24Z4/M
R901411228 4WRPH6C4B24L-2X/G24Z4/V
0811404045 4WRPH6C4B25P-2X/G24Z4/M
0811404039 4WRPH6C4B40L-2X/G24Z4/M
0811404046 4WRPH6C4B40P-2X/G24Z4/M
0811404032 4WRPH6KB50L-2X/G24Z4/M
0811404040 4WRPH6KB50P-2X/G24Z4/M
0811404177 4WRPH6XB12L-2X/G24K0/M-843
0811404166 4WRPH6XB12L-2X/G24Z4/M-842
0811404163 4WRPH6XB24L-2X/G24Z4/M-842
0811404175 4WRPH6XB40L-2X/G24Z4/M-842
力士樂(lè)REXROTH伺服電磁閥，帶電氣位置反饋（LVDT的直流/直流±10 V）4WRPH 10
R901238071 4WRPH10CX50L-2X/G24K0/M-950
0811404076 4WRPH10C1B100L-2X/G24Z4/M
0811404078 4WRPH10C1B100P-2X/G24Z4/M
R901158094 4WRPH10C1B50L-2X/G24Z4/M
0811404067 4WRPH10C1B50P-2X/G24Z4/M
0811404059 4WRPH10C3B100L-2X/G24Z4/M
0811404063 4WRPH10C3B100P-2X/G24Z4/M
0811404068 4WRPH10C3B120L-2X/G24Z4/M
0811404058 4WRPH10C3B50L-2X/G24Z4/M
0811404062 4WRPH10C3B50P-2X/G24Z4/M
0811404061 4WRPH10C4B100L-2X/G24Z4/M
0811404065 4WRPH10C4B100P-2X/G24Z4/M
0811404060 4WRPH10C4B50L-2X/G24Z4/M
0811404064 4WRPH10C4B50P-2X/G24Z4/M
0811404077 4WRPH10C5B100L-2X/G24Z4/M
0811404079 4WRPH10C5B100P-2X/G24Z4/M
0811404066 4WRPH10KB120P-2X/G24Z4/M
R901238071 4WRPH10CX50L-20/G24K0/M-950
0811404076 4WRPH10C1B100L-20/G24Z4/M
0811404078 4WRPH10C1B100P-20/G24Z4/M
R901158094 4WRPH10C1B50L-20/G24Z4/M
0811404067 4WRPH10C1B50P-20/G24Z4/M
0811404059 4WRPH10C3B100L-20/G24Z4/M
0811404063 4WRPH10C3B100P-20/G24Z4/M
0811404068 4WRPH10C3B120L-20/G24Z4/M
0811404058 4WRPH10C3B50L-20/G24Z4/M
0811404062 4WRPH10C3B50P-20/G24Z4/M
0811404061 4WRPH10C4B100L-20/G24Z4/M
0811404065 4WRPH10C4B100P-20/G24Z4/M
0811404060 4WRPH10C4B50L-20/G24Z4/M
0811404064 4WRPH10C4B50P-20/G24Z4/M
0811404077 4WRPH10C5B100L-20/G24Z4/M
0811404079 4WRPH10C5B100P-20/G24Z4/M
0811404066 4WRPH10KB120P-20/G24Z4/M
力士樂(lè)REXROTH電氣位置反饋的高響應(yīng)閥（LVDT的直流/直流）（設(shè)計(jì)：堅(jiān)固耐用的）4WRPH..2X..-750
R901238065 4WRPH10CB50L-2X/G24K0/M-750
0811404901 4WRPH10C1B100L-2X/G24K0/M-750
0811404089 4WRPH10C1B100P-2X/G24K0/M-750
R901312081 4WRPH10C1B50L-2X/G24K0/M-750
0811404902 4WRPH10C3B100L-2X/G24K0/M-750
R901222250 4WRPH10C3B50L-2X/G24K0/M-750
R901421079 4WRPH10C3B50L-2X/G24K0/V-750
0811404069 4WRPH10C4B100L-2X/G24K0/M-750
0811404088 4WRPH10C4B100P-2X/G24K0/M-750
R901240795 4WRPH10C4B50L-2X/G24K0/M-750
R901283701 4WRPH10C5B100L-2X/G24K0/M-750
R901273566 4WRPH6C1B40L-2X/G24K0/M-750
0811404169 4WRPH6C3B24L-2X/G24K0/M-750
0811404170 4WRPH6C3B40L-2X/G24K0/M-750
0811404173 4WRPH6C4B15P-2X/G24K0/M-750
0811404167 4WRPH6C4B24L-2X/G24K0/M-750
0811404171 4WRPH6C4B40L-2X/G24K0/M-750
0811404178 4WRPH6C4B40P-2X/G24K0/M-750
力士樂(lè)REXROTH高響應(yīng)方向閥，直動(dòng)式、帶電氣位置反饋和集成電子放大版（OBE）4WRPEH 6 -2X
R901244410 4WRPEH6CB02L-2X/G24K0/A1M
R901274673 4WRPEH6CB02L-2X/G24K0/F1M
R901374649 4WRPEH6CB02L-2X/G24K0/F1V
0811404741 4WRPEH6CB04L-2X/G24K0/A1M
R901387787 4WRPEH6CB04L-2X/G24K0/C6V
R901125451 4WRPEH6CB04L-2X/G24K0/F1M
R901129227 4WRPEH6CB04L-2X/G24K0/F1V
0811404528 4WRPEH6CB04P-2X/G24K0/A1M
0811404366 4WRPEH6CB08P-2X/G24K0/A1M
0811404527 4WRPEH6CB12L-2X/G24K0/A1M
R901299920 4WRPEH6CB12L-2X/G24K0/A1M-819
R901335676 4WRPEH6CB12L-2X/G24K0/A1M-981
R901335689 4WRPEH6CB12L-2X/G24K0/A1M-982
R901114916 4WRPEH6CB12L-2X/G24K0/F1M
R901367205 4WRPEH6CB12L-2X/G24K0/F1V
R901316279 4WRPEH6CB15P-2X/G24K0/A1M
R901316274 4WRPEH6CB15P-2X/G24K0/A1M-819
R901335678 4WRPEH6CB15P-2X/G24K0/A1M-981
0811404355 4WRPEH6CB24L-2X/G24K0/A1M
0811404529 4WRPEH6CB24L-2X/G24K0/A1M-819
R901335677 4WRPEH6CB24L-2X/G24K0/A1M-981
R901363849 4WRPEH6CB24L-2X/G24K0/A5M
0811404743 4WRPEH6CB24L-2X/G24K0/B5M
R901114917 4WRPEH6CB24L-2X/G24K0/F1M
R901295071 4WRPEH6CB24L-2X/G24K0/F1V
0811404531 4WRPEH6CB24L-2X/G24XNZ0/A1V
0811404359 4WRPEH6CB25P-2X/G24K0/A1M
0811404363 4WRPEH6CB25P-2X/G24K0/A1M-303
R901316275 4WRPEH6CB25P-2X/G24K0/A1M-819
R901335679 4WRPEH6CB25P-2X/G24K0/A1M-981
0811404639 4WRPEH6CB40L-2X/G24K0/A1M
R901288819 4WRPEH6CB40L-2X/G24K0/A1M-819
R901335693 4WRPEH6CB40L-2X/G24K0/A1M-982
R901363856 4WRPEH6CB40L-2X/G24K0/A5M
0811404640 4WRPEH6CB40L-2X/G24K0/F1M
R901363412 4WRPEH6CB40L-2X/G24K0/F1V
R901316278 4WRPEH6CB40P-2X/G24K0/A1M
R901316276 4WRPEH6CB40P-2X/G24K0/A1M-819
R901335682 4WRPEH6CB40P-2X/G24K0/A1M-981
R901335696 4WRPEH6CB40P-2X/G24K0/A1M-982
R901226219 4WRPEH6CB40P-2X/G24K0/F1M
R901366133 4WRPEH6C1B04L-2X/G24K0/F1V
R901353808 4WRPEH6C1B12L-2X/G24K0/A1M
R901303846 4WRPEH6C1B24L-2X/G24K0/A1M
0811404525 4WRPEH6C1B24L-2X/G24K0/F1M
0811404738 4WRPEH6C1B40L-2X/G24K0/A1M
0811404354 4WRPEH6C1B40L-2X/G24K0/F1M
0811404649 4WRPEH6C1B40P-2X/G24K0/A1M
0811404744 4WRPEH6C3B02L-2X/G24K0/A1M
0811404606 4WRPEH6C3B02L-2X/G24K0/A1M-816
R901409296 4WRPEH6C3B02L-2X/G24K0/A1M-816=KM
0811404629 4WRPEH6C3B02L-2X/G24K0/A1M-817
0811404630 4WRPEH6C3B02L-2X/G24K0/A1M-841
R901068998 4WRPEH6C3B02L-2X/G24K0/A1M-863
R901172445 4WRPEH6C3B02L-2X/G24K0/A1V-816
R901201762 4WRPEH6C3B02L-2X/G24K0/B5M
0811404526 4WRPEH6C3B02L-2X/G24K0/F1M
R901374653 4WRPEH6C3B02L-2X/G24K0/F1V
0811404600 4WRPEH6C3B04L-2X/G24K0/A1M
0811404607 4WRPEH6C3B04L-2X/G24K0/A1M-816
R901348337 4WRPEH6C3B04L-2X/G24K0/A1M-816=KM
0811404616 4WRPEH6C3B04L-2X/G24K0/A1M-817
0811404614 4WRPEH6C3B04L-2X/G24K0/A1M-818
0811404625 4WRPEH6C3B04L-2X/G24K0/A1M-841
0811404357 4WRPEH6C3B04L-2X/G24K0/A1V
R901131999 4WRPEH6C3B04L-2X/G24K0/A1V-816
0811404621 4WRPEH6C3B04L-2X/G24K0/B5M
0811404631 4WRPEH6C3B04L-2X/G24K0/F1M
1817414343 4WRPEH6C3B04L-2X/G24K0/F1M-816
R901094403 4WRPEH6C3B04L-2X/G24K0/F1M-885
R901PT0086 4WRPEH6C3B04L-2X/G24K0/F1M-885
R901207289 4WRPEH6C3B04L-2X/G24K0/F1V
0811404533 4WRPEH6C3B04L-2X/G24XNZ0/A1V
0811404605 4WRPEH6C3B04P-2X/G24K0/A1M
0811404627 4WRPEH6C3B04P-2X/G24K0/A1M-561
R901284350 4WRPEH6C3B04P-2X/G24K0/A1M-561
R901090319 4WRPEH6C3B04P-2X/G24K0/F1M
0811404624 4WRPEH6C3B08L-2X/G24K0/A1M-841
R901119611 4WRPEH6C3B08L-2X/G24K0/F1V
0811404601 4WRPEH6C3B12L-2X/G24K0/A1M
0811404601 4WRPEH6C3B12L-20/G24K0/A1M
R901190457 4WRPEH6C3B12L-2X/G24K0/A1M-303
0811404608 4WRPEH6C3B12L-2X/G24K0/A1M-816
0811404617 4WRPEH6C3B12L-2X/G24K0/A1M-817
0811404615 4WRPEH6C3B12L-2X/G24K0/A1M-818
R901255687 4WRPEH6C3B12L-2X/G24K0/A1M-958
R901102638 4WRPEH6C3B12L-2X/G24K0/A1V
0811404530 4WRPEH6C3B12L-2X/G24K0/A1V-816
R901363845 4WRPEH6C3B12L-2X/G24K0/A5M
0811404365 4WRPEH6C3B12L-2X/G24K0/B5M
0811404632 4WRPEH6C3B12L-2X/G24K0/F1M
R901308316 4WRPEH6C3B12L-2X/G24K0/F1M-885
R901174367 4WRPEH6C3B12L-2X/G24K0/F1M-936
R901255692 4WRPEH6C3B12L-2X/G24K0/F1M-958
R901200038 4WRPEH6C3B12L-2X/G24K0/F1V
0811404368 4WRPEH6C3B12P-2X/G24K0/A1M-854
0811404642 4WRPEH6C3B15P-2X/G24K0/A1M
0811404736 4WRPEH6C3B15P-2X/G24K0/A1M-303
0811404737 4WRPEH6C3B15P-2X/G24K0/A1M-561
R901266764 4WRPEH6C3B15P-2X/G24K0/A1V
0811404626 4WRPEH6C3B15P-2X/G24K0/B5M
R901153461 4WRPEH6C3B15P-2X/G24K0/F1M
0811404602 4WRPEH6C3B24L-2X/G24K0/A1M
0811404367 4WRPEH6C3B24L-2X/G24K0/A1M-299
R901190458 4WRPEH6C3B24L-2X/G24K0/A1M-303
R901030124 4WRPEH6C3B24L-2X/G24K0/A1M-816
R901P74368 4WRPEH6C3B24L-2X/G24K0/A1M-936_PT
R901402817 4WRPEH6C3B24L-2X/G24K0/A1M=KM
R901171861 4WRPEH6C3B24L-2X/G24K0/A1V
R901208916 4WRPEH6C3B24L-2X/G24K0/A1V-936
0811404622 4WRPEH6C3B24L-2X/G24K0/B5M
0811404633 4WRPEH6C3B24L-2X/G24K0/F1M
0811404360 4WRPEH6C3B24L-2X/G24K0/F1M-299
R901130878 4WRPEH6C3B24L-2X/G24K0/F1M-303
R901179244 4WRPEH6C3B24L-2X/G24K0/F1V
R901208917 4WRPEH6C3B24L-2X/G24K0/F1V-936
0811404643 4WRPEH6C3B25P-2X/G24K0/A1M
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
0811404536 4WRPEH6C3B40P-2X/G24XNZ0/A1V
0811404641 4WRPEH6C4B02L-2X/G24K0/A1M
0811404537 4WRPEH6C4B02L-2X/G24K0/F1M
R901284158 4WRPEH6C4B02L-2X/G24K0/F1V
0811404610 4WRPEH6C4B04L-2X/G24K0/A1M
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
力士樂(lè)REXROTH伺服電磁閥四位四通高頻單向閥門，直接驅(qū)動(dòng)，帶有集成電子和電氣位置反饋（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
力士樂(lè)REXROTH四位四通高頻單向閥門，直接驅(qū)動(dòng)，具有集成電子和電氣位置反饋（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
R901183010 4WRPEH10C3B100L-2X/G24K0/A1M-932
R901192081 4WRPEH10C3B100L-2X/G24K0/A1M=SA
R901204810 4WRPEH10C3B100L-2X/G24K0/A1V
0811404813 4WRPEH10C3B100L-2X/G24K0/B5M
0811404817 4WRPEH10C3B100L-2X/G24K0/F1M
R901212890 4WRPEH10C3B100L-2X/G24K0/F1V
0811404823 4WRPEH10C3B100P-2X/G24K0/A1M
R901168836 4WRPEH10C3B100P-2X/G24K0/F1M
R901423003 4WRPEH10C3B100P-2X/G24K0/F1V
0811404800 4WRPEH10C3B50L-2X/G24K0/A1M
R901371313 4WRPEH10C3B50L-2X/G24K0/A1V
0811404808 4WRPEH10C3B50L-2X/G24K0/B5M
0811404819 4WRPEH10C3B50L-2X/G24K0/F1M
R901228642 4WRPEH10C3B50L-2X/G24K0/F1V
0811404822 4WRPEH10C3B50P-2X/G24K0/A1M
R901121806 4WRPEH10C3B50P-2X/G24K0/F1M
0811404803 4WRPEH10C4B100L-2X/G24K0/A1M
0811404807 4WRPEH10C4B100L-2X/G24K0/A1V
0811404761 4WRPEH10C4B100L-2X/G24K0/F1M
R901383466 4WRPEH10C4B100L-2X/G24K0/F1V
0811404825 4WRPEH10C4B100P-2X/G24K0/A1M
R901150034 4WRPEH10C4B100P-2X/G24K0/F1M
0811404802 4WRPEH10C4B50L-2X/G24K0/A1M
0811404812 4WRPEH10C4B50L-2X/G24K0/B5M
0811404760 4WRPEH10C4B50L-2X/G24K0/F1M
R901186254 4WRPEH10C4B50L-2X/G24K0/F1V
0811404824 4WRPEH10C4B50P-2X/G24K0/A1M
0811404559 4WRPEH10C4B50P-2X/G24K0/F1M
0811404759 4WRPEH10C5B100L-2X/G24K0/F1M
0811404827 4WRPEH10C5B100P-2X/G24K0/A1M
R901406210 4WRPEH10C5B100P-2X/G24K0/F1M
0811404756 4WRPEH10C5B50L-2X/G24K0/A1M
0811404758 4WRPEH10C5B50L-2X/G24K0/F1M
0811404826 4WRPEH10C5B50P-2X/G24K0/A1M
0811404757 4WRPEH10C5B100L-2X/G24K0/A1M
R901422438 4WRPEH10C5B100L-2X/G24K0/A1V-36
力士樂(lè)REXROTH高響應(yīng)的換向閥，直接操作，集成的數(shù)字軸控制器（IAC多以太網(wǎng)）4WRPDH
R901415733 4WRPDH10C1B100L-2X/M/24ND6T
R901372234 4WRPDH10C3B100L-2X/M/24SD6T
R901372818 4WRPDH10C3B100L-2X/M/24TD6T
R901319678 4WRPDH10C3B100P-2X/M/24TD6T
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
R901405787 4WRPDH6C3B40L-2X/M/24ND6T
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
R901362870 4WRPDH6C4B40L-2X/M/24ND6T
R901395434 4WRPDH6C4B40L-2X/M/24TD6T
R901436807 4WRPDH6C4B40L-2X/V/24ED6T
R901401587 4WRPDH6C4B40P-2X/M/24ND6T
R901410170 4WRPDH6C5B04L-2X/M/24ND6T
R901405782 4WRPDH6C5B40P-2X/M/24ND6U
力士樂(lè)REXROTH帶集成的數(shù)字軸控制器的高響應(yīng)閥（iac-r）和現(xiàn)場(chǎng)總線接口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
比例控制閥
采用比例電磁鐵(或力矩馬達(dá))將輸入信號(hào)轉(zhuǎn)換成力或閥的機(jī)械位移，使閥的輸出(壓力、流量)也按照其輸入量連續(xù)、成比例地進(jìn)行控制的閥。
大型鋼廠現(xiàn)場(chǎng)使用的比例閥主要有下表中的幾種:伺服比例控制閥、比例控制閥、電液比例控制閥，比例閥，伺服閥。
1、4WRD E..型比例伺服控制閥(高頻響閥)
結(jié)構(gòu)和功能
4WRDE型閥是三級(jí)高頻響方向閥。該閥可用于開環(huán)控制或閉環(huán)調(diào)節(jié)液流的大小和方向，但主要用于閉環(huán)調(diào)節(jié)回路中。
閥主要由下列部分組成:
1.二級(jí)先導(dǎo)控制閥由力矩馬達(dá)( 1 )和由噴嘴擋板閥構(gòu)成的液壓放大器( 5),和用作流量放大級(jí)的閥芯襯套組件(6 )(用以控制第三級(jí)(7 ))組成。
2.第三級(jí)(7)用于流量控制。
3.感應(yīng)式位移傳感器( 8),連接第三級(jí)主閥芯( 10)的磁芯(9 )
通過(guò)內(nèi)置電子放大器實(shí)現(xiàn)閥閉環(huán)控制信號(hào)邏輯連接,位置檢測(cè)系統(tǒng)反饋,和先導(dǎo)閥的控制。
給定值/實(shí)際值比較得到的差動(dòng)電壓經(jīng)過(guò)電子控制器放大, 并作為控制偏差量傳遞到閥的一級(jí)。這個(gè)信號(hào)推動(dòng)兩個(gè)控制噴嘴( 3.1, 3.2) 之間的擋板( 2)因而在兩個(gè)控制腔(11.1.11.2)產(chǎn)生了壓差。控制閥芯(4 )因此被推動(dòng),并通過(guò)相應(yīng)的液流流到彈簧腔(12.1or12.2)閥芯(10)和帶磁芯(9)的位移傳感器(8)-直運(yùn)動(dòng),直到實(shí)際值和給定值信號(hào)再一次相等。在控制條件下;主閥芯( 10 )一直被保持在給定值所對(duì)應(yīng)的位置。
閥芯行程和給定值成正比。通過(guò)閥芯( 10 )相對(duì)于控制邊( 13 )的位置,形成相應(yīng)的與流量成正比的閥口開度。
閥的動(dòng)態(tài)特性通過(guò)電子放大器優(yōu)化。電子放大器內(nèi)置于閥上(振蕩器,解調(diào)器)
零點(diǎn)調(diào)節(jié)由廠家預(yù)先設(shè)定,通過(guò)閉環(huán)控制電子放大器內(nèi)的電位器, 零點(diǎn)能在名義行程士10%范圍內(nèi)調(diào)整。移去閥蓋尾部的插頭,可以對(duì)內(nèi)置閉環(huán)電子放大器進(jìn)行操作。

2、4WREE..型比例控制閥
1.結(jié)構(gòu)和功能原理
該二位四通和三位四通比例方 向閥為直控,板式結(jié)構(gòu);由比例電磁操作,比例電磁.帶中心螺紋,圈可單獨(dú)拆卸,電磁的控制可通過(guò)外部放大器( WRA型)或內(nèi)置的放大器(WRAE型)實(shí)現(xiàn)。
結(jié)構(gòu):
該閥由下列部分組成:
帶安裝底面的閥體( 1 )
帶彈簧(3和4)的控制閥芯(2 )
帶中心螺紋的電磁鐵( 5和6 )
位移傳感器(7 )
可選帶內(nèi)置放大器( 8 )
機(jī)械零位調(diào)整(9 ),
工作原理:
電磁鐵(5和6 )不帶電時(shí),對(duì)中彈簧(3和4 )將控制閥芯(2 )保持在中位
比例電磁鐵得電被激勵(lì)后,會(huì)直接推動(dòng)控制閥芯( 2),例如:控制電磁"b" (6 )被激勵(lì)，控制閥芯(2)被推向左側(cè),位移與輸入電信號(hào)成比例,這時(shí),P口至A口及B口至T口通過(guò)閥芯與閥體形成的節(jié)流溝通并具有漸進(jìn)的流量特性。電磁鐵( 6 )失電控制.閥芯(2)被對(duì)中彈簧(3)重新推回中位。
在電磁鐵失電的情況下,閥芯( 2 )在電磁跌復(fù)位彈簧的作用保持在機(jī)械中位。這對(duì)機(jī)能符號(hào)”V”的閥芯來(lái)說(shuō),與液壓中位無(wú)關(guān)!當(dāng)閥用于閉環(huán)控制而關(guān)閉時(shí),閥芯則置于液壓中位。
必須避免回油管路中的油全部排空, 必要時(shí)在回路中安裝背壓閥(背壓約2 bar)。

3、4WR...型比例控制閥
3.結(jié)構(gòu)和功能原理
先導(dǎo)控制閥型號(hào)3DREP 6... 該先導(dǎo)閥是一個(gè)由比例電磁鐵控制的三通減壓閥,它的作用是將一個(gè)輸入的電信號(hào)轉(zhuǎn)化為一個(gè)與其成比例的壓力輸出信號(hào),可用于所有的4WRZ..和5WR...型比例閥的控制。
比例電磁鐵是可調(diào)式,濕式直流電磁結(jié)構(gòu),帶中心螺紋,線圈可單獨(dú)拆卸;電磁鐵控制可通過(guò)外部放大器( WRZ型)或內(nèi)置的放大器( WRZE型)來(lái)實(shí)現(xiàn)。
結(jié)構(gòu):
該閥主要由下列部分組成:
(1)帶有安裝底面的殼體( 1 );
(2)裝有壓力測(cè)量活塞(3和4)的控制閥芯(2 );
(3)帶中心螺紋電磁鐵( 5和6);
(4)可選帶內(nèi)置放大器( 7 )
工作原理:
(1)當(dāng)電磁鐵(5和6)不帶電時(shí),對(duì)中彈簧將控制閥芯(2)保持在中位;
(2)比例電磁鐵帶電被激勵(lì)后, 會(huì)直接推動(dòng)控制閥芯( 2),例如:電磁”a” (5)被激勵(lì);
(3)控制閥芯(2)和壓力測(cè)量活塞(3)被推向左側(cè);
(4)位移與輸入的電信號(hào)成比例。
這時(shí),P口與B口及A口與T口通過(guò)閥芯與閥體形成的節(jié)流口1接通，節(jié)流特性為漸進(jìn)式。如果電磁鐵(5 )失電,控制閥芯( 2 )被彈簧重新推回中位。在先導(dǎo)閥的中位，A口、B口和T口相通,這也意味著油液可以從這里直接回油箱。

先導(dǎo)式比例方向閥, 型號(hào)4WRZ..和5WRZ.. , 4WRZ..型閥是先導(dǎo)式、比例電磁鐵
控制的四通方向閥,它可控制液流的方向和大小。
結(jié)構(gòu):
該閥主要由下列部分組成:
(1)裝有比例電磁. (5和6 )的先導(dǎo)控制閥( 9 )
(2)裝有主閥芯(11)和對(duì)中彈簧(12)的主閥(10)
工作原理:
(1)當(dāng)電磁鐵(5和6)不帶電時(shí),對(duì)中彈簧(12)將主閥芯(11)保持在中位。
(2)主閥芯(11)的動(dòng)作由先導(dǎo)閥(9)來(lái)控制-它會(huì)間接地被電磁鐵”b"(6)成比例地推動(dòng)。首先控制閥芯( 2 )被推向右側(cè),控制油經(jīng)過(guò)先導(dǎo)閥(9 )進(jìn)入控制腔( 13 )，并與輸入信號(hào)成比例地推動(dòng)主閥芯( 11 ), 這時(shí),P口與A口及B口與T口通過(guò)閥芯與閥體形成的節(jié)流口接通,節(jié)流特性為漸進(jìn)式。
(3)先導(dǎo)閥所需的控制油液可通過(guò)P口內(nèi)供或X口外供。
(4)如果電磁鐵(6)失電,控制閥芯( 2 )和主閥芯( 11 )會(huì)重新回到中位。
(5)隨著主閥芯位置的不同, P口與A口、B口與T口(R)接通或P口與B口、A口與T口(R)通。可選保護(hù)罩手動(dòng)應(yīng)急操作( 14和15 ),它可使先導(dǎo)閥芯( 2 )在電磁不通電的情況下移動(dòng)。