4WRL25V370M-3X/G24Z4/M

4WRL25V370M-3X/G24Z4/M力士樂比例閥 比例方向閥 比例伺服閥

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4WRL25V370M-3X/G24Z4/M力士樂比例閥

比例環(huán)節(jié)

比例環(huán)節(jié)也稱為無慣性環(huán)節(jié),對液壓缸或馬達，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)過放大K倍后輸出。

比例控制系統(tǒng)

比例控制系統(tǒng)根據(jù)有無反饋分為開環(huán)控制和閉環(huán)控制。如比例閥控制液壓缸或馬達系統(tǒng)可以實現(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,無級調(diào)節(jié)系統(tǒng)輸入量就可以無級調(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)輸出量對系統(tǒng)輸入控制作用沒有影響,沒有自動糾正偏差的能力,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，所以只能應用在精度要求不高并且不存在內(nèi)外干擾的場合。開環(huán)控制系統(tǒng)一.般不存在所謂穩(wěn)定性問題。

電液比例閥種類和形式

電液比例閥包括比例流量閥、比例壓力閥、比例換向閥。工程機械液壓操作特點，以結(jié)構(gòu)形式劃分電液比例閥主要有兩類:一類是螺旋插裝式比例閥，另一類是滑閥式比例閥。

滑閥式比例閥又稱分配閥，是移動式機械液壓系統(tǒng)基本元件之一，是能實現(xiàn)方向與流量調(diào)節(jié)復合閥。電液滑閥式比例多路閥是比較理想電液轉(zhuǎn)換控制元件，它保留了手動多路閥基本功能，還增加了位置電反饋比例伺服操作和負載傳感等先進控制手段。它是工程機械分配閥更新?lián)Q代產(chǎn)品。

出于制造成本考慮和工程機械控制精度要求不高特點，--般比例多路閥內(nèi)不配置位移感應傳感器，具有電子檢測和糾錯功能。，閥芯位移量容易受負載變化引起壓力波動影響，操作過程中要靠視覺觀察來保證作業(yè)完成。電控、遙控操作時更應注意外界千涉影響。近來，電子技術(shù)發(fā)展，人們越來越多采用內(nèi)裝差動變壓器(LDVT)等位移傳感器構(gòu)成閥芯位置移動檢測，實現(xiàn)閥芯位移閉環(huán)控制。這種由電磁比例閥、位置反饋傳感器、驅(qū)動放大器和其它電子電路組成高度集成比例閥，具有一定校正功能，可以有效克服一.般比例閥缺點，使控制精度到較大提高。

4WRL25V370M-3X/G24Z4/M力士樂比例閥

 功能、組成部分： 閥芯機能 E. 和 W.

4WRLE 型比例閥是一個帶電氣位置反饋和集成電子元件 (OBE)

的先導式比例方向控制閥。

裝配

閥的基本構(gòu)成包括 3 個主要組件：

? 先導控制閥 (1) 包含控制閥芯和套筒、復位彈簧、控制線圈

和感應式位置傳感器（可選配電子元件保護膜 (5) 和減振板

(4)）

? 帶對中彈簧和位置反饋的主閥 (2)

? 帶模擬量 (6) 或 IO-Link 接口的集成電子元件 (OBE) (3)

功能

當集成電子元件 (OBE) 處于被關(guān)閉或未激活的狀態(tài)時，先導控

制閥的控制閥芯在彈簧作用下處于 "故障安全" 位置。主閥的控

制閥芯位于其彈簧對中中心位置。

集成電子元件 (OBE) 將****控制值與主閥控制閥芯的位置實際

值進行比較。在有控制偏差的情況下，將激活控制線圈。由于磁

力發(fā)生改變，先導控制閥芯進行調(diào)節(jié)以抵住彈簧。

通過改變控制截面大小而產(chǎn)生的流量可以對主控制閥芯進行調(diào)

節(jié)。主控制閥芯的行程/控制截面與控制值成比例進行調(diào)節(jié)。

先導油可通過油口 P 從內(nèi)部供給先導控制閥，也可通過油口 X

從外部供給先導控制閥�？赏ㄟ^油口 T 從內(nèi)部實現(xiàn)到油箱的反

饋，也可以通過油口 Y 從外部實現(xiàn)。

控制線圈切斷

在以下故障情況下，集成電子元件 (OBE) 使控制線圈斷電，先

導控制閥芯將設置為 "故障安全" 位置，并將卸載主閥的先導油

腔。通過彈簧操作，主閥控制閥芯將移動至中心位置。

? 低于較小電源電壓

? 僅在當接口為 "F1" 時：

– 值低于較小電流控制值 2 mA（包括控制值線的電纜中斷

（電流環(huán)））。

? 僅當接口為 "L1" 時：

– 使能未激活，通訊中斷（看門狗）

– 內(nèi)部 IO-Link 發(fā)生故障時

? 僅當接口為 "C6" 時：

– 額外的，釋放未激活

減振板 "D"

減振板 (4) 降低集成電子元件上的加速振幅（頻率 >300 Hz）。

注意：

對于主要為低激勵頻率 (<300 Hz) 的應用，不建議使用減振

板。

力士樂REXROTH高響應換向閥，先導式

力士樂REXROTH三位四通高響應換向閥電氣位置反饋（LVDT的直流/直流）（結(jié)構(gòu)形式：耐震）4WRL...-750

0811404099 4WRL10V1-85M-3X/G24ETK0/M-750

R901347126 4WRL10V55M-3X/G24ETK0/M-750

0811404096 4WRL10V55M-3X/G24K0/M-750

R901347731 4WRL10V85M-3X/G24ETK0/M-750

0811404097 4WRL10V85M-3X/G24K0/M-750

R901313838 4WRL16V1-120L-3X/G24ETK0/M-750

0811404236 4WRL16V1-120M-3X/G24K0/M-750

0811404237 4WRL16V1-200M-3X/G24K0/M-750

R901212959 4WRL16V100P-3X/G24K0/M-750

R901280647 4WRL16V120M-3X/G24ETK0/M-750

0811404229 4WRL16V120M-3X/G24K0/M-750

R901347134 4WRL16V200M-3X/G24ETK0/M-750

0811404231 4WRL16V200M-3X/G24K0/M-750

R901347131 4WRL25V1-370M-3X/G24ETK0/M-750

0811404423 4WRL25V1-370M-3X/G24K0/M-750

R901439210 4WRL25V370L-3X/G24K0/M-750

R901169705 4WRL25V370M-3X/G24ETK0/M-750

0811404428 4WRL25V370M-3X/G24K0/M-750

力士樂REXROTH三位四通的高響應換向閥、先導式、帶電氣位置反饋（LVDT的直流/直流±10V）4WRL.V

R901359908 4WRL10V1-55L-3X/G24ETZ4/M

R901227935 4WRL10V1-55M-3X/G24ETZ4/M

0811404396 4WRL10V1-55M-3X/G24Z4/M

0811404395 4WRL10V1-70P-3X/G24Z4/M

0811404394 4WRL10V1-85M-3X/G24Z4/M

R901295792 4WRL10V55L-3X/G24ETZ4/M

0811404392 4WRL10V55M-3X/G24ETZ4/M

0811404391 4WRL10V55M-3X/G24TZ4/M

0811404093 4WRL10V55M-3X/G24Z4/M

R978714508 4WRL10V70P-3X/G24ETZ4/M

0811404095 4WRL10V70P-3X/G24Z4/M

0811404390 4WRL10V85M-3X/G24ETZ4/M

0811404393 4WRL10V85M-3X/G24TZ4/M

0811404091 4WRL10V85M-3X/G24TZ4/M-766

0811404094 4WRL10V85M-3X/G24Z4/M

0811404242 4WRL16V1-100P-3X/G24Z4/M

R901349326 4WRL16V1-120M-3X/G24ETZ4/M

0811404239 4WRL16V1-120M-3X/G24Z4/M

0811404244 4WRL16V1-150P-3X/G24Z4/M

0811404240 4WRL16V1-200M-3X/G24Z4/M

R901257432 4WRL16V100P-3X/G24ETZ4/M

0811404241 4WRL16V100P-3X/G24Z4/M

R901361565 4WRL16V120M-3X/G24ETZ4/M

0811404245 4WRL16V120M-3X/G24ETZ4/M-857

R901101401 4WRL16V120M-3X/G24EZ4/M

R901348342 4WRL16V120M-3X/G24TZ4/M

0811404206 4WRL16V120M-3X/G24Z4/M

R901375755 4WRL16V150L-3X/G24ETZ4/M

R901295791 4WRL16V150L-3X/G24EZ4/M

R901PT0015 4WRL16V150L-3X/G24Z4/M

R901098102 4WRL16V150L-3X/G24Z4/M

0811404243 4WRL16V150P-3X/G24Z4/M

R901294274 4WRL16V200L-3X/G24ETZ4/M

R901295790 4WRL16V200L-3X/G24EZ4/M

R901374101 4WRL16V200L-3X/G24Z4/M

R901348344 4WRL16V200M-3X/G24ETZ4/M

0811404341 4WRL16V200M-3X/G24ETZ4/M-857

R901179368 4WRL16V200M-3X/G24EZ4/M

R901264562 4WRL16V200M-3X/G24TZ4/M

0811404221 4WRL16V200M-3X/G24TZ4/M-765

0811404207 4WRL16V200M-3X/G24Z4/M

0811404495 4WRL25V1-370M-3X/G24Z4/M

R901361306 4WRL25V270M-3X/G24ETZ4/M-783

0811404412 4WRL25V270M-3X/G24Z4/M-783

0811404487 4WRL25V300L-3X/G24TZ4/M-840

0811404483 4WRL25V300L-3X/G24TZ4/M-856

R901312210 4WRL25V300P-3X/G24TZ4/M

0811404496 4WRL25V300P-3X/G24Z4/M

R901290975 4WRL25V370M-3X/G24ETZ4/M

R901238424 4WRL25V370M-3X/G24EZ4/M

R901312211 4WRL25V370M-3X/G24TZ4/M

0811404405 4WRL25V370M-3X/G24Z4/M

0811404561 4WRL35V0000M-3X/G24EZ4/M-866

R901248057 4WRL35V1000M-3X/G24ETZ4/M-923

R901307736 4WRL35V1000M-3X/G24EZ4/M-923

0811404560 4WRL35V1000M-3X/G24Z4/M-923

力士樂REXROTH三位四通的高響應換向閥、先導式、電氣位置反饋（LVDT的直流/直流±10V）4WRL.E(W)

0811404182 4WRL10E1-80S-3X/G24ETZ4/M

0811404190 4WRL10E1-80S-3X/G24TZ4/M

0811404181 4WRL10E1-80S-3X/G24Z4/M

0811404186 4WRL10E4-80S-3X/G24Z4/M

0811404192 4WRL10E80S-3X/G24ETK0/M-750

R901378216 4WRL10E80S-3X/G24EZ4/M

0811404191 4WRL10E80S-3X/G24K0/M-750

0811404189 4WRL10E80S-3X/G24TZ4/M

0811404180 4WRL10E80S-3X/G24Z4/M

0811404185 4WRL10W1-80S-3X/G24ETZ4/M

0811404194 4WRL10W1-80S-3X/G24EZ4/M

0811404193 4WRL10W1-80S-3X/G24TZ4/M

0811404184 4WRL10W1-80S-3X/G24Z4/M

R901348164 4WRL10W3-80S-3X/G24TZ4/M

0811404187 4WRL10W4-80S-3X/G24Z4/M

0811404188 4WRL10W80S-3X/G24ETZ4/M

R901345919 4WRL10W80S-3X/G24TZ4/M

0811404183 4WRL10W80S-3X/G24Z4/M

R901069034 4WRL10W4-80S-3X/-864DR

0811404216 4WRL16E1-110S-3X/G24Z4/M

R901308639 4WRL16E1-180S-3X/G24Z4/M

0811404228 4WRL16E1-180S-3X/G24Z4/M-755

0811404226 4WRL16E1-180S-3X/G24Z4/M-762

0811404215 4WRL16E110S-3X/G24Z4/M

R901212731 4WRL16E180S-3X/G24ETZ4/M

R901297840 4WRL16E180S-3X/G24Z4/M

0811404225 4WRL16E180S-3X/G24Z4/M-762

R901095626 4WRL16E1Z180S-3X/G24ETZ4/M

0811404212 4WRL16E1Z180S-3X/G24Z4/M

R901417764 4WRL16E4-180S-3X/G24TZ4/M

0811404214 4WRL16E4-180S-3X/G24Z4/M

R901086253 4WRL16EZ180S-3X/G24ETZ4/M

0811404233 4WRL16EZ180S-3X/G24ETZ4/M-750

0811404235 4WRL16EZ180S-3X/G24ETZ4/M-763

0811404210 4WRL16EZ180S-3X/G24Z4/M

0811404232 4WRL16EZ180S-3X/G24Z4/M-750

0811404224 4WRL16EZ180S-3X/G24Z4/M-760

0811404234 4WRL16EZ180S-3X/G24Z4/M-763

R901349407 4WRL16W1-110S-3X/G24Z4/M

R901308581 4WRL16W1-180S-3X/G24Z4/M

R901406263 4WRL16W110S-3X/G24ETZ4/M

R901426725 4WRL16W110S-3X/G24Z4/M

0811404218 4WRL16W180S-3X/G24ETZ4/WX02M-748

0811404217 4WRL16W180S-3X/G24EZ4/M

R901298608 4WRL16W180S-3X/G24Z4/M

R901264828 4WRL16W1Z180S-3X/G24EZ4/M

0811404213 4WRL16W1Z180S-3X/G24Z4/M

0811404219 4WRL16W3-180S-3X/G24Z4/WX02M-924

R901182143 4WRL16W4Z180S-3X/G24EZ4/M

R901175259 4WRL16W4Z180S-3X/G24TZ4/M

0811404211 4WRL16W4Z180S-3X/G24Z4/M

R901433141 4WRL16WA110S-3X/G24Z4/M

0811404247 4WRL16WZ180S-3X/G24ETZ4/M

R901413784 4WRL16WZ180S-3X/G24EZ4/M

0811404223 4WRL16WZ180S-3X/G24EZ4/WX02M-753

0811404316 4WRL16WZ180S-3X/G24EZ4/WX02M-756

R901357079 4WRL16WZ180S-3X/G24TZ4/M

0811404209 4WRL16WZ180S-3X/G24Z4/M

R978714382 4WRL16WZ180S-3X/G24Z4/V

R901341441 4WRL25E1-350S-3X/G24Z4/M

0811404427 4WRL25E1-350S-3X/G24Z4/M-755

0811404408 4WRL25E1Z350S-3X/G24Z4/M

R901297815 4WRL25E350S-3X/G24Z4/M

0811404419 4WRL25E350S-3X/G24Z4/M-755

0811404420 4WRL25E4-350S-3X/G24Z4/M

0811404489 4WRL25EZ000S-3X/G24Z4/M-867

0811404425 4WRL25EZ350S-3X/G24ETZ4/M-750

0811404426 4WRL25EZ350S-3X/G24ETZ4/M-763

0811404407 4WRL25EZ350S-3X/G24Z4/M

0811404424 4WRL25EZ350S-3X/G24Z4/M-750

0811404418 4WRL25EZ350S-3X/G24Z4/M-760

0811404422 4WRL25EZ350S-3X/G24Z4/M-763

R901253023 4WRL25W1Z350S-3X/G24EZ4/M

0811404409 4WRL25W1Z350S-3X/G24Z4/M

0811404416 4WRL25W3-350S-3X/G24Z4/WX02M-799

R901411339 4WRL25W350S-3X/G24ETZ4/M

0811404415 4WRL25W350S-3X/G24ETZ4/WX02M-748

0811404414 4WRL25W350S-3X/G24EZ4/M

R901297812 4WRL25W350S-3X/G24K0/V-750

R901297842 4WRL25W350S-3X/G24Z4/M

0811404410 4WRL25W350S-3X/G24Z4/WX02M-753

R901222489 4WRL25W4-350S-3X/G24ETZ4/M

0811404421 4WRL25W4-350S-3X/G24Z4/M

R978714447 4WRL25WZ350S-3X/G24ETZ4/M

0811404406 4WRL25WZ350S-3X/G24Z4/M

R901125761 4WRL27E430S-3X/G24EZ4/M

R901429616 4WRL27E430S-3X/G24Z4/M

0811404500 4WRL35E1100S-3X/G24Z4/M

0811404501 4WRL35W1100S-3X/G24Z4/WX02M-767

R901250049 4WRL35W2-1100S-3X/G24ETZ4/M

0811404506 4WRL35W2-1100S-3X/G24Z4/M

R901118494 4WRL35W4-1100S-3X/G24ETZ4/M

力士樂REXROTH高響應換向閥、先導式、集成的數(shù)字軸控制器（IAC多以太網(wǎng)）4WRLD -3X

R901446834 4WRLD16V200L-3X/MPY/24ND6T

R901446693 4WRLD16V200M-3X/MPT/24ND6T

R901422253 4WRLD25V1-370L-3X/MPY/24ND6T

R901422251 4WRLD25V1-370M-3X/MXY/24ND6U

R901379552 4WRLD25V370L-3X/MPT/24ED6T

R901426651 4WRLD25V370L-3X/MPT/24ND6T

R901422252 4WRLD25V370M-3X/MXY/24ND6U

R901444392 4WRLD25V370M-3X/MXY/24WD6T

力士樂REXROTH三位四通高響應換向閥、先導式、電氣位置反饋和集成電子放大版（OBE）4WRLE

R901404333 4WRLE16E1-250LJ-4X/MXY/24A1

R901440167 4WRLE16E250LJ-4X/MPT/24A1

R901404332 4WRLE16E250LJ-4X/MXY/24A1

R901430024 4WRLE16E250LJ-4X/MXY/24A1=KM

R901401891 4WRLE16W6-200LJ-4X/MXY/24A1

R901404334 4WRLE16W8-200LJ-4X/MXY/24A1

R901404809 4WRLE25E1-400LJ-4X/MXY/24A1

R901396318 4WRLE25E400LJ-4X/MXY/24A1

R901400416 4WRLE25E400LJ-4X/MXY/24F1

R901404336 4WRLE25W6-350LJ-4X/MXY/24A1

R901407266 4WRLE25W6-350LJ-4X/MXY/24A1-971=KM

R901407272 4WRLE25W6-350LJ-4X/MXYWX/24A1-971=KM

R901404810 4WRLE25W8-350LJ-4X/MXY/24A1

R901404812 4WRLE27E1-600LJ-4X/MXY/24A1

R901396320 4WRLE27E600LJ-4X/MXY/24A1

R901400418 4WRLE27E600LJ-4X/MXY/24F1

R901432335 4WRLE27E600LJ-4X=MXT/24F1-834

R901404338 4WRLE27W6-430LJ-4X/MXY/24A1

R901404813 4WRLE27W8-430LJ-4X/MXY/24A1

R901439962 4WRLE35E1500LJ-4X/MXY/24A1-905

力士樂REXROTH三位四通高響應換向閥、先導式、電氣位置反饋和集成電子放大版（OBE）4WRLE.V

0811404688 4WRLE10V1-40P-3X/G24K0/A1M

R901217842 4WRLE10V1-55L-3X/G24ETK0/A1M

R901285149 4WRLE10V1-55L-3X/G24K0/F1M

R901156561 4WRLE10V1-55M-3X/G24EK0/A1M

R901276897 4WRLE10V1-55M-3X/G24EK0/A1V

0811404671 4WRLE10V1-55M-3X/G24K0/A1M

0811404689 4WRLE10V1-70P-3X/G24K0/A1M

R901335054 4WRLE10V1-85L-3X/G24EK0/A1M

R901217844 4WRLE10V1-85L-3X/G24ETK0/A1M

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R901219315 4WRLE10V1-85M-3X/G24K0/F1M

R901421582 4WRLE10V1-85M-3X/G24TK0/A1M

R901401438 4WRLE10V100P-3X/G24K0/F1V-979

R901225019 4WRLE10V40P-3X/G24ETK0/A1M

0811404686 4WRLE10V40P-3X/G24K0/A1M

R901424653 4WRLE10V55L-3X/G24EK0/A1M

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0811404683 4WRLE10V85M-3X/G24ETK0/A1M-810

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R901231667 4WRLE10V85M-3X/G24ETK0/F1M-834

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0811404655 4WRLE10V85M-3X/G24TK0/B5M-766

R901325221 4WRLE10V85M-3X=G24K0/F1M-980

R901363305 4WRLE16V1-120L-3X/G24EK0/F1M

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R901403751 4WRLE16V1-120L-3X/G24ETK0/A1V

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R901137425 4WRLE16V1-120L-3X/G24K0/F1M

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R901212728 4WRLE16V1-120M-3X/G24EK0/A1M

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R901211120 4WRLE16V1-150P-3X/G24EK0/F1M

0811404266 4WRLE16V1-150P-3X/G24K0/A1M

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R901302627 4WRLE16V1-200L-3X/G24EK0/A1M

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R901262590 4WRLE16V1-90P-3X/G24EK0/A1M

0811404265 4WRLE16V1-90P-3X/G24K0/A1M

R901128116 4WRLE16V120L-3X/G24ETK0/A1M

R901343003 4WRLE16V120L-3X/G24ETK0/F1M

R901125220 4WRLE16V120L-3X/G24K0/A1M

R901335383 4WRLE16V120L-3X/G24K0/A1V

R901369277 4WRLE16V120L-3X/G24K0/F1M

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R901386485 4WRLE16V120M-3X/G24EK0/F1M

R978714486 4WRLE16V120M-3X/G24ETK0/A1M

0811404285 4WRLE16V120M-3X/G24ETK0/A1M-857

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R901360765 4WRLE16V120M-3X/G24ETK0/F1WX00M-914

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R901102640 4WRLE16V120M-3X/G24K0/A1V

0811404271 4WRLE16V120M-3X/G24K0/B5M-991

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R901132535 4WRLE16V120M-3X/G24TK0/A1V

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R901168211 4WRLE16V150P-3X/G24EK0/F1M

R901105318 4WRLE16V150P-3X/G24ETK0/A1M

R901162989 4WRLE16V150P-3X/G24ETK0/F1M

0811404264 4WRLE16V150P-3X/G24K0/A1M

R901241364 4WRLE16V150P-3X/G24K0/F1M

R901427135 4WRLE16V200L-3X/G24EK0/A1M

R901128117 4WRLE16V200L-3X/G24ETK0/A1M

R901328405 4WRLE16V200L-3X/G24ETK0/F1M

R901125221 4WRLE16V200L-3X/G24K0/A1M

R901135270 4WRLE16V200L-3X/G24K0/F1M

R901378460 4WRLE16V200L-3X/G24K0/F1V

R901087984 4WRLE16V200M-3X/G24EK0/A1M

0811404284 4WRLE16V200M-3X/G24EK0/F1M

R901089293 4WRLE16V200M-3X/G24ETK0/A1M

0811404288 4WRLE16V200M-3X/G24ETK0/A1M-857

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0811404343 4WRLE16V200M-3X/G24ETK0/F1M

R901359853 4WRLE16V200M-3X/G24ETK0/F1M-834

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R901199725 4WRLE16V200M-3X/G24K0/A1V

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0811404272 4WRLE16V200M-3X/G24K0/F1M

R901114932 4WRLE16V200M-3X/G24K0/F1M-834

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R901134551 4WRLE16V250M-3X/G24EK0/A1M-913

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R901330884 4WRLE25V1-300P-3X/G24ETK0/F1M

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R901338788 4WRLE25V1-300P-3X/G24K0/F1M

R901362469 4WRLE25V1-370L-3X/G24EK0/A1M

R901354690 4WRLE25V1-370L-3X/G24ETK0/A1M

R901370611 4WRLE25V1-370L-3X/G24K0/A1M

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0811404569 4WRLE25V250M-3X/G24K0/A1M

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R901432501 4WRLE25V370M-3X/G24ETK0/F1M-834

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R901131728 4WRLE25V370M-3X/G24K0/B5M

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R901114370 4WRLE35V1000M-3X/G24EK0/A1M-866

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R901135570 4WRLE35V1000M-3X/G24ETK0/A1M

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R901230344 4WRLE35V1000M-3X/G24ETK0/F1M-834

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0811404583 4WRLE35V1000M-3X/G24K0/A1M-834

R901428415 4WRLE35V1000M-3X/G24K0/A1M-967

R901440993 4WRLE35V1000M-3X/G24K0/A1WG02M

R901203014 4WRLE35V1000M-3X/G24K0/F1M

R901235851 4WRLE35V1000M-3X/G24K0/F1M-834

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R901381396 4WRLE35V1000P-3X/G24K0/F1V-979

R901148862 4WRLE35V800P-3X/G24ETK0/F1M

減壓閥可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質(zhì)主要是水。減壓閥廣泛用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場合，以保證給水系統(tǒng)中各用水點獲得適當?shù)姆�務水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統(tǒng)的水壓大小成正比，因此減壓閥具有改善系統(tǒng)運行工況和潛在節(jié)水作用，據(jù)統(tǒng)計其節(jié)水效果約為30%。