力士樂4WRLE型先導式三位四通伺服換向閥配有電子位置反饋器和集成式電子控制器（OBE），它的Z大工作壓力 P, A, B 350bar (NG27: 280bar) 和額定體積流量50...1100 l/min (?p=10 bar)。Rexroth伺服換向閥由3個主要部件構成：先導閥，配有控制控制閥芯和閥套、回位彈簧、控制電磁鐵和感應式位移傳感器；主級，配有對中彈簧和位置反饋，集成式電子控制器

        德國Rexroth三位四通伺服換向閥4WRLE的功能說明：當沒有操動控制電磁鐵時，先導閥的控制滑閥在彈簧力作用  下處在“Fail-Safe”功能位置中，主級滑閥處在其彈簧對中的中  間位置。  在集成電子控制器中將設定值與主級控制滑閥的位置實際值  進行比較。 如果存在控制偏差，就會驅動控制電磁鐵，  以改變磁力的方式對先導滑閥進行調整。 經過控制截面的體  積流量使得主控制滑閥移動，相對于設定值 0.5...10 V   以 20...100％ 比例調節其行程。 如果設定值 ＜±0.5 V，  則主級的控制滑閥就會在對中彈簧作用下保持在被遮蓋的中  間位置。  要么在內部通過接口 P，或者在外部通過接口 X 將控制油供  應給先導閥。 可以在內部通過接口 T 或者在外部通過接口 Y   回流到油箱。

電源故障  如果發生故障，或者當電纜斷線時，集成式電子控制器就會  將控制電磁鐵斷電，先導滑閥進入“Fail-Safe”功能位置，  并且將主級的控制油腔卸空。 主級控制滑閥在彈簧作用下進  入中間位置。

德國Rexroth伺服電磁閥（帶電氣位置反饋（LvdtDC/DC±10V），4WRL1032）：

4WRL10V–55M3X/G24Z4/M、4WRL10V–55M3X/G24TZ4/M、4WRL10V–55M3X/G24ETZ4/M、4WRL10V–85M3X/G24Z4/M、4WRL10V–85M3X/G24TZ4/M、4WRL10V–85M3X/G24ETZ4/M
0811J04309 4WRLE16XZ110SJ-3X/G24K0/A1M-768、0811J04277 4WRLE16X200L-3X/G24TK0/B5M-780、0811J04253 4WRLE16X200M-3X/G24K0/A1WG02M-776、0811A04658 4WRLE10X85M-3X/G24K0/A1WG02M-813、0811404717 4WRLE10W4-80SJ-3X/G24K0/A102M-864、0811404716 4WRLE10X50SJ-3X/G24K0/A1M-800、0811404715 4WRLE10E1-80SJ-3X/G24ETK0/A1M、0811404713 4WRLE10E80SJ-3X/G24ETK0/A1M、0811404712 4WRLE10W1-80SJ-3X/G24EK0/A102M-756、0811404711 4WRLE10W4-80SJ-3X/G24K0/A1M、0811404708 4WRLE10W1-80SJ-3X/G24EK0/A102M-744、0811404707 4WRLE10W80SJ-3X/G24ETK0/A1M、0811404706 4WRLE10E1-80SJ-3X/G24K0/A1M-755、0811404704 4WRLE10W50SJ-3X/G24ETK0/A1M、0811404703 4WRLE10W1-80SJ-3X/G24K0/A1M、0811404702 4WRLE10W80SJ-3X/G24K0/A1M、0811404701 4WRLE10E1-80SJ-3X/G24K0/A1M、0811404700 4WRLE10E80SJ-3X/G24K0/A1M、0811404687 4WRLE10V70P-3X/G24K0/A1M、0811404683 4WRLE10V85M-3X/G24ETK0/A1M-810、0811404681 4WRLE10V85M-3X/G24ETK0/F1M、0811404680 4WRLE10Q3-85M-3X/G24ETK0/A1M、0811404678 4WRLE10V55M-3X/G24ETK0/A1M-810、0811404677 4WRLE10X85M-3X/G24K0/A1M-0811、0811404673 4WRLE10V1-85M-3X/G24ETK0/A1M、0811404672 4WRLE10V1-85M-3X/G24K0/A1M、0811404670 4WRLE10Q4-85M-3X/G24ETK0/A1M、0811404668 4WRLE10Q4-85M-3X/G24TK0/A1M、0811404665 4WRLE10Q5-85M-3X/G24ETK0/A1M、0811404664 4WRLE10V85M-3X/G24K0/B5M、0811404663 4WRLE10V55M-3X/G24K0/B5M、0811404662 4WRLE10V85M-3X/G24ETK0/A1M、0811404661 4WRLE10V55M-3X/G24ETK0/A1M、0811404660 4WRLE10V85M-3X/G24TK0/A1M、0811404659 4WRLE10V55M-3X/G24TK0/A1M、0811404657 4WRLE10V55M-3X/G24ETK0/A1V、0811404656 4WRLE10X85M-3X/G24ETK0/A1M-812、0811404653 4WRLE10V85M-3X/G24K0/A1M、0811404652 4WRLE10V55M-3X/G24K0/A1M、0811404588 4WRLE35R5-1100SJ-3X/G24EK0/A1M-868、0811404587 4WRLE35Q5-1000M-3X/G24EK0/A1WG02M、0811404585 4WRLE35X1000M-3X/G24K0/A1M-848、0811404583 4WRLE35V1000M-3X/G24K0/A1M-834、0811404580 4WRLE35Q3-1000M-3X/G24TK0/A1M、0811404579 4WRLE35V1000M-3X/G24K0/A1M、0811404578 4WRLE35X500M-3X/G24EK0/A1M-812、0811404577 4WRLE35X1000M-3X/G24K0/A1M-812、0811404576 4WRLE35X1000M-3X/G24EK0/A1M-812、0811404575 4WRLE35X500M-3X/G24K0/A1M-812、0811404574 4WRLE27V1-430M-3X/G24K0/F1M
0811404573 4WRLE25V370M-3X/G24K0/F1M、0811404572 4WRLE27Q3-550P-3X/G24K0/A1M
0811404571 4WRLE27Q5-430M-3X/G24EK0/A1WG02M、0811404570 4WRLE25V370M-3X/G24EK0/F1M、0811404568 4WRLE25X370M-3X/G24TK0/A1M-0811、0811404567 4WRLE27Q3-430M-3X/G24K0/A1WG02M、0811404566 4WRLE25Q3-370M-3X/G24K0/A1WG02M
0811404560 4WRL35V1000M-3X/G24Z4/M-923、0811404508 4WRLE35R5-1100SJ-3X/G24EK0/A102M-745、0811404506 4WRL35W2-1100S-3X/G24Z4/M、0811404505 4WRLE35W3-1100SJ-3X/G24EK0/A102M-745、0811404504 4WRLE35W1100SJ-3X/G24K0/A1M、0811404503 4WRLE35W5-600SJ-3X/G24EK0/A102M-745、0811404502 4WRLE35W1100SJ-3X/G24EK0/A102M-744、0811404501 4WRL35W1100S-3X/G24Z4/02M-767、0811404500 4WRL35E1100S-3X/G24Z4/M、0811404498 4WRLE25V370M-3X/G24ETK0/A1M、0811404496 4WRL25V300P-3X/G24Z4/M、0811404494 4WRLE35W1100SJ-3X/G24K0/A1M-732、0811404493 4WRLE27W430SJ-3X/G24K0/A1M-732
0811404492 4WRLE25W4Z350SJ-3X/G24K0/A1M-732、0811404489 4WRL25EZ000S-3X/G24Z4/M-867、0811404488 4WRLE25WZ350SJ-3X/G24K0/A1V、0811404485 4WRLE27E4-430SJ-3X/G24K0/A1M、0811404481 4WRLE25EZ350SJ-3X/G24ETK0/A1M、0811404480 4WRLE25WZ350SJ-3X/G24K0/A1M-759、0811404479 4WRLE27W3-430SJ-3X/G24EK0/A102M-745、0811404478 4WRLE27E430SJ-3X/G24K0/A1M、0811404477 4WRLE27X430SJ-3X/G24EK0/A102M-782、0811404474 4WRLE25W350SJ-3X/G24EK0/A102M-745、0811404473 4WRLE25W350SJ-3X/G24EK0/A102M-756
0811404472 4WRLE25W4Z350SJ-3X/G24K0/A1M、0811404471 4WRLE25W4Z350SJ-3X/G24ETK0/A1M、0811404470 4WRLE25W3-350SJ-3X/G24EK0/A102M-756
0811404467 4WRLE25W3-350SJ-3X/G24EK0/A102M-745、0811404466 4WRLE25EZ350SJ-3X/G24TK0/A1M、0811404462 4WRLE27W430SJ-3X/G24K0/A1M-758、0811404461 4WRLE25WZ350SJ-3X/G24K0/A1M-758、0811404459 4WRLE25E4-350SJ-3X/G24K0/A1M
0811404458 4WRLE27W430SJ-3X/G24K0/A1M、0811404457 4WRLE25W1Z350SJ-3X/G24K0/A1M、0811404456 4WRLE25WZ350SJ-3X/G24K0/A1M、0811404455 4WRLE25E1Z350SJ-3X/G24K0/A1M、0811404454 4WRLE25EZ350SJ-3X/G24K0/A1M
0811404453 4WRLE25WZ350SJ-3X/G24ETK0/A102M-749、0811404452 4WRLE25WZ350SJ-3X/G24EK0/A1M-561、0811404444 4WRLE25V1-370M-3X/G24K0/A1M、0811404443 4WRLE27W4-430SJ-3X/G24ETK0/A102M-745、0811404442 4WRLE27Q4-430M-3X/G24TK0/A1M、0811404441 4WRLE27Q4-430M-3X/G24K0/A1M、0811404440 4WRLE27W1-430M-3X/G24EK0/A1M-769、0811404439 4WRLE25W1-370M-3X/G24EK0/A1M-769
R901131953 4WRLE25Q3-370M-3X/G24K0/A1M、R901102544 4WRLE16W1-180SJ-3X/G24K0/A1M、R901089293 4WRLE16V200M-3X/G24ETK0/A1M、R901132613 4WRLE16V1-200M-3X/G24TK0/A1V、R901132535 4WRLE16V120M-3X/G24TK0/A1V、R901131728 4WRLE25V370M-3X/G24K0/B5M、R901131008 4WRLN27Q4-430M-3X/MXY/24CA6A、R9011208117 4WRLE16V200L-3X/G24ETK0/A1M、R9011208116 4WRLE16V120L-3X/G24ETK0/A1M、R901126915 4WRLE35E1-1100SJ-3X/G24K0/A1M、R901125761 4WRL27E430S-3X/G24EZ4/M、R901124948 4WRLE25EZ350SJ-3X/G24K0/A1WG082M、R901124887 4WRLE25E4-350SJ-3X/G24EK0/A1M、R901118992 4WRLE25V370M-3X/G24ETK0/F1M、R901118991 4WRLE16V1-120M-3X/G24K0/F1M、R901111711 4WRLE35V1000M-3X/G24EK0/F1M、R901106966 4WRLE10Q4-85M-3X/G24K0/A1M
R901102544 4WRLE16W1-180SJ-3X/G24K0/A1M、R901097659 4WRLE10E80SJ-3X/G24TK0/A1M、R901095626 4WRL16E1Z180S-3X/G24ETZ4/M、R901094014 4WRLE16V1-120M-3X/G24TK0/A1M、R901091344 4WRLE10V55M-3X/G24K0/F1M、R901089293 4WRLE16V200M-3X/G24ETK0/A1M、R901088123 4WRLE16Q5-200M-3X/G24ETK0/A1M
R901087984 4WRLE16V200M-3X/G24EK0/A1M、R901086253 4WRL16EZ180S-3X/G24ETZ4/M

        德國Rexroth三位四通伺服換向閥4WRLE的功能說明：當沒有操動控制電磁鐵時，先導閥的控制滑閥在彈簧力作用  下處在“Fail-Safe”功能位置中，主級滑閥處在其彈簧對中的中  間位置。  在集成電子控制器中將設定值與主級控制滑閥的位置實際值  進行比較。 如果存在控制偏差，就會驅動控制電磁鐵，  以改變磁力的方式對先導滑閥進行調整。 經過控制截面的體  積流量使得主控制滑閥移動，相對于設定值 0.5...10 V   以 20...100％ 比例調節其行程。 如果設定值 ＜±0.5 V，  則主級的控制滑閥就會在對中彈簧作用下保持在被遮蓋的中  間位置。  要么在內部通過接口 P，或者在外部通過接口 X 將控制油供  應給先導閥。 可以在內部通過接口 T 或者在外部通過接口 Y   回流到油箱。

電源故障  如果發生故障，或者當電纜斷線時，集成式電子控制器就會  將控制電磁鐵斷電，先導滑閥進入“Fail-Safe”功能位置，  并且將主級的控制油腔卸空。 主級控制滑閥在彈簧作用下進  入中間位置。

        德國Rexroth伺服電磁閥（帶電氣位置反饋（LvdtDC/DC±10V），4WRL1032）：

4WRL10V–55M3X/G24Z4/M、4WRL10V–55M3X/G24TZ4/M、4WRL10V–55M3X/G24ETZ4/M、4WRL10V–85M3X/G24Z4/M、4WRL10V–85M3X/G24TZ4/M、4WRL10V–85M3X/G24ETZ4/M
0811J04309 4WRLE16XZ110SJ-3X/G24K0/A1M-768、0811J04277 4WRLE16X200L-3X/G24TK0/B5M-780、0811J04253 4WRLE16X200M-3X/G24K0/A1WG02M-776、0811A04658 4WRLE10X85M-3X/G24K0/A1WG02M-813、0811404717 4WRLE10W4-80SJ-3X/G24K0/A102M-864、0811404716 4WRLE10X50SJ-3X/G24K0/A1M-800、0811404715 4WRLE10E1-80SJ-3X/G24ETK0/A1M、0811404713 4WRLE10E80SJ-3X/G24ETK0/A1M、0811404712 4WRLE10W1-80SJ-3X/G24EK0/A102M-756、0811404711 4WRLE10W4-80SJ-3X/G24K0/A1M、0811404708 4WRLE10W1-80SJ-3X/G24EK0/A102M-744、0811404707 4WRLE10W80SJ-3X/G24ETK0/A1M、0811404706 4WRLE10E1-80SJ-3X/G24K0/A1M-755、0811404704 4WRLE10W50SJ-3X/G24ETK0/A1M、0811404703 4WRLE10W1-80SJ-3X/G24K0/A1M、0811404702 4WRLE10W80SJ-3X/G24K0/A1M、0811404701 4WRLE10E1-80SJ-3X/G24K0/A1M、0811404700 4WRLE10E80SJ-3X/G24K0/A1M、0811404687 4WRLE10V70P-3X/G24K0/A1M、0811404683 4WRLE10V85M-3X/G24ETK0/A1M-810、0811404681 4WRLE10V85M-3X/G24ETK0/F1M、0811404680 4WRLE10Q3-85M-3X/G24ETK0/A1M、0811404678 4WRLE10V55M-3X/G24ETK0/A1M-810、0811404677 4WRLE10X85M-3X/G24K0/A1M-0811、0811404673 4WRLE10V1-85M-3X/G24ETK0/A1M、0811404672 4WRLE10V1-85M-3X/G24K0/A1M、0811404670 4WRLE10Q4-85M-3X/G24ETK0/A1M、0811404668 4WRLE10Q4-85M-3X/G24TK0/A1M、0811404665 4WRLE10Q5-85M-3X/G24ETK0/A1M、0811404664 4WRLE10V85M-3X/G24K0/B5M、0811404663 4WRLE10V55M-3X/G24K0/B5M、0811404662 4WRLE10V85M-3X/G24ETK0/A1M、0811404661 4WRLE10V55M-3X/G24ETK0/A1M、0811404660 4WRLE10V85M-3X/G24TK0/A1M、0811404659 4WRLE10V55M-3X/G24TK0/A1M、0811404657 4WRLE10V55M-3X/G24ETK0/A1V、0811404656 4WRLE10X85M-3X/G24ETK0/A1M-812、0811404653 4WRLE10V85M-3X/G24K0/A1M、0811404652 4WRLE10V55M-3X/G24K0/A1M、0811404588 4WRLE35R5-1100SJ-3X/G24EK0/A1M-868、0811404587 4WRLE35Q5-1000M-3X/G24EK0/A1WG02M、0811404585 4WRLE35X1000M-3X/G24K0/A1M-848、0811404583 4WRLE35V1000M-3X/G24K0/A1M-834、0811404580 4WRLE35Q3-1000M-3X/G24TK0/A1M、0811404579 4WRLE35V1000M-3X/G24K0/A1M、0811404578 4WRLE35X500M-3X/G24EK0/A1M-812、0811404577 4WRLE35X1000M-3X/G24K0/A1M-812、0811404576 4WRLE35X1000M-3X/G24EK0/A1M-812、0811404575 4WRLE35X500M-3X/G24K0/A1M-812、0811404574 4WRLE27V1-430M-3X/G24K0/F1M
0811404472 4WRLE25W4Z350SJ-3X/G24K0/A1M、0811404471 4WRLE25W4Z350SJ-3X/G24ETK0/A1M、0811404470 4WRLE25W3-350SJ-3X/G24EK0/A102M-756
0811404467 4WRLE25W3-350SJ-3X/G24EK0/A102M-745、0811404466 4WRLE25EZ350SJ-3X/G24TK0/A1M、0811404462 4WRLE27W430SJ-3X/G24K0/A1M-758、0811404461 4WRLE25WZ350SJ-3X/G24K0/A1M-758、0811404459 4WRLE25E4-350SJ-3X/G24K0/A1M
0811404458 4WRLE27W430SJ-3X/G24K0/A1M、0811404457 4WRLE25W1Z350SJ-3X/G24K0/A1M、0811404456 4WRLE25WZ350SJ-3X/G24K0/A1M、0811404455 4WRLE25E1Z350SJ-3X/G24K0/A1M、0811404454 4WRLE25EZ350SJ-3X/G24K0/A1M
0811404453 4WRLE25WZ350SJ-3X/G24ETK0/A102M-749、0811404452 4WRLE25WZ350SJ-3X/G24EK0/A1M-561、0811404444 4WRLE25V1-370M-3X/G24K0/A1M、0811404443 4WRLE27W4-430SJ-3X/G24ETK0/A102M-745、0811404442 4WRLE27Q4-430M-3X/G24TK0/A1M、0811404441 4WRLE27Q4-430M-3X/G24K0/A1M、0811404440 4WRLE27W1-430M-3X/G24EK0/A1M-769、0811404439 4WRLE25W1-370M-3X/G24EK0/A1M-769
R901131953 4WRLE25Q3-370M-3X/G24K0/A1M、R901102544 4WRLE16W1-180SJ-3X/G24K0/A1M、R901089293 4WRLE16V200M-3X/G24ETK0/A1M、R901132613 4WRLE16V1-200M-3X/G24TK0/A1V、R901132535 4WRLE16V120M-3X/G24TK0/A1V、R901131728 4WRLE25V370M-3X/G24K0/B5M、R901131008 4WRLN27Q4-430M-3X/MXY/24CA6A、R9011208117 4WRLE16V200L-3X/G24ETK0/A1M、R9011208116 4WRLE16V120L-3X/G24ETK0/A1M、R901126915 4WRLE35E1-1100SJ-3X/G24K0/A1M、R901125761 4WRL27E430S-3X/G24EZ4/M、R901124948 4WRLE25EZ350SJ-3X/G24K0/A1WG082M、R901124887 4WRLE25E4-350SJ-3X/G24EK0/A1M、R901118992 4WRLE25V370M-3X/G24ETK0/F1M、R901118991 4WRLE16V1-120M-3X/G24K0/F1M、R901111711 4WRLE35V1000M-3X/G24EK0/F1M、R901106966 4WRLE10Q4-85M-3X/G24K0/A1M
R901102544 4WRLE16W1-180SJ-3X/G24K0/A1M、R901097659 4WRLE10E80SJ-3X/G24TK0/A1M、R901095626 4WRL16E1Z180S-3X/G24ETZ4/M、R901094014 4WRLE16V1-120M-3X/G24TK0/A1M、R901091344 4WRLE10V55M-3X/G24K0/F1M、R901089293 4WRLE16V200M-3X/G24ETK0/A1M、R901088123 4WRLE16Q5-200M-3X/G24ETK0/A1M
R901087984 4WRLE16V200M-3X/G24EK0/A1M、R901086253 4WRL16EZ180S-3X/G24ETZ4/M

        Rexroth三位四通伺服換向閥4WRLE的特征：先導式 4/3-伺服換向閥 NG10 ～ NG35，遮蓋度約為 20 ％； 先導閥 NG6，配有控制活塞和鋼套，伺服性能可靠，單側操作，4/4 斷電時處于 Fail-safe 功能位置；控制電磁鐵，配有電子位置反饋器和集成式電子控制器  (OBE)，出廠時已校準 ； 主級配有位置反饋器；電子補償、校準遮蓋度；線性滑閥，配有防扭轉裝置； 流量特性： S = 漸增式、NG16, 25, 27，帶有負載平衡口 C1/C2；用于閥板安裝，NG10 接口的位置符合 ISO 4401-05-05-0-05, NG16 接口的位置符合 ISO 4401-07-07-0-05，NG25/27 接口的位置符合 ISO 4401-08-08-0-05，NG35 接口的位置符合 ISO 4401-10-09-0-05；安裝板根據規格參數表，NG10 RC 45055, NG16 RC 45057, NG25/27 RC 45059 和 NG35 RD 45060（單獨訂購）；符合 DIN 43563-AM6 標準的線纜插座， 參見規格參數表 RD 08008的特征：先導式 4/3-伺服換向閥 NG10 ～ NG35，遮蓋度約為 20 ％； 先導閥 NG6，配有控制活塞和鋼套，伺服性能可靠，單側操作，4/4 斷電時處于 Fail-safe 功能位置；控制電磁鐵，配有電子位置反饋器和集成式電子控制器  (OBE)，出廠時已校準 ； 主級配有位置反饋器；電子補償、校準遮蓋度；線性滑閥，配有防扭轉裝置； 流量特性： S = 漸增式、NG16, 25, 27，帶有負載平衡口 C1/C2；用于閥板安裝，NG10 接口的位置符合 ISO 4401-05-05-0-05, NG16 接口的位置符合 ISO 4401-07-07-0-05，NG25/27 接口的位置符合 ISO 4401-08-08-0-05，NG35 接口的位置符合 ISO 4401-10-09-0-05；安裝板根據規格參數表，NG10 RC 45055, NG16 RC 45057, NG25/27 RC 45059 和 NG35 RD 45060（單獨訂購）；符合 DIN 43563-AM6 標準的線纜插座， 參見規格參數表 RD 08008