力士乐4WRDE系列先导式高频响方向阀，带电位反馈规格10至32；安装面按ISO 4401；控制流量的方向和大小；适合对动力、位置、速度和压力进行闭环控制；通过一个2级伺服阀进行先导控制；通过感应位置监测器对主阀芯进行位置感应；集成电控器（OBE）。

力士乐4WRDE系列比例阀为3位4通控制换向阀，带2级伺服阀先导控制.带电子位置反馈和内装控制电子元件通径25通径25油口位置按ISO4401.
编码:4401-08-07-0-94 
阀芯W对称的阀芯重叠从P到A及B对称的阀芯，开口从A及B到T带大约公称截面积的3%. 
流量:350350L/min, 阀压力降=10bar
特性曲线形式: L线性系列 5X系列50至59 先导6L伺服先导阀, 通经6 电压24+24V 直流电压特殊保护型式
不带特殊保护型式控制油ET内部进油，内部回油电子接口K9元件接头按DIN43650-AM2.
不带插头(单独订货)叠加阀不带叠加板换向阀密封MNBR密封，适用于矿物油(HL,HLP)按DIN51524,其它的液体请。
力士乐Rexroth先导式高频响方向控制换向阀订货号/型号：
R901104990 4WRDE32W600L-5X/6L24K9/M
R901102032 4WRDE16V1-200L-5X/6L24K9/V
R901098903 4WRDE16W125L-5X/6L24ETK9/WG152M
R901097831 4WRDE10V50L-5X/6L15EK9/M-280
R901097630 4WRDE10V25L-5X/6L15K9/VR-280
R901096430 4WRDE16W200L-5X/6L24K9/WG152M
R901096284 4WRDE32V600L-5X/6L24K9/VR-881
R901095834 4WRDE10W1-100L-5X/6L24K9/V
R901095362 4WRDE25V220L-5X/6L15ETK9/WG152M
R901095318 4WRDE32W600L-5X/6L24K9/WG152M
R901094073 4WRDE10V1-100L-5X/6L24K9/V
R901093985 4WRDE16W200L-5X/6L24EK9/M
R901092003 4WRDE10V50L-5X/6L24EK9/MR
R901089060 4WRDE10E50P-5X/6L24K9/MR
R901085389 4WRDE25V220L-5X=6L15ETK9/WG152M
R901085388 4WRDE16V125L-5X=6L15ETK9/M
R901085364 4WRDE16W1-200L-5X/6L24TK9/M
R901083593 4WRDE25V350P-5X/6L24K9/MR
R901082785 4WRDE16V125P-5X/6L24TK9/M
R901079991 4WRDE27W500L-5X/6L24K9/MR-280
R901079988 4WRDE16W1-125L-5X/6L24K9/MR-280
R901079986 4WRDE16W1-200L-5X/6L24K9/MR-280
R901079949 4WRDE25V000S-5X/6L15K9/VR-469
R901079507 4WRDE25E1-350L-5X/6L24K9/WG152MR
R901079142 4WRDE27W1-500P-5X/6L24K9/WG152MR
R901078593 4WRDE16E1-125L-5X/6L24ETK9/WG152MR
R901078127 4WRDE10V1-100P-5X/6L24TK9/MR
R901075852 4WRDE25V220L-5X/6L24TK9/WG152M-280
R901075442 4WRDE16V125L-5X/6L24TK9/M-280
R901074358 4WRDE16V125L-5X/6L24ETK9/M-280
R901134300 4WRDE16Q2-200P-5X/6L15K9/WG152MR
R901132087 4WRDE25V1-350L-5X/6L15K9/VR-280
R901131864 4WRDE16V125L-5X/6L24ETK9/WG152MR
R901131452 4WRDE25V350L-5X/6L15EK9/M
R901130863 4WRDE32V600L-5X/6L24K9/MR-576
R901130612 4WRDE16V200P-5X/6L24ETK9/MR-280
R901130572 4WRDE32E400L-5X/6L24EK9/MR
R901130248 4WRDE10V100S-5X/6L15ETK9/MR
R901129743 4WRDE32V600L-5X/6L24K9/MR-202
R901127196 4WRDE16V200P-5X/6L24K9/VR-576
R901127194 4WRDE10V100P-5X/6L24K9/VR-576
R901125441 4WRDE25V350L-5X/6L24K9/VR-576
R901125425 4WRDE16V125L-5X/6L24K9/V-576
R901122858 4WRDE32V600L-5X/6L24ETK9/MR
R901121801 4WRDE10V1-50L-5X/6L15K9/VR-280
R901120775 4WRDE25E3-350P-5X/6L24ETK9/WG152M
R901118086 4WRDE10V1-50S-5X/6L24K9/WG152MR
R901117439 4WRDE16E125L-5X/6L15EK9/WG152M
R901116616 4WRDE32V1-400L-5X/6L24K9/WG152MR
R901074350 4WRDE32V400L-5X/6L24K9/MR
R901072877 4WRDE10V50L-5X/6L24TK9/MR-280
R901072551 4WRDE16V125L-5X/6L24TK9/V
R901070226 4WRDE32V400L-5X/6L24K9/WG152MR
R901068907 4WRDE10V25L-5X/6L24TK9/M
R901068457 4WRDE25V220L-5X/6L15K9/MR-881
R901067986 4WRDE32E600L-5X/6L24K9/M
R901067238 4WRDE16V125L-5X/6L24ETK9/MR
R901065914 4WRDE10E100L-5X/6L24EK9/M-280
R901026677 4WRDE25W350L-5X/6L24ETK9/M
R901160405 4WRDE16V1-125L-5X/6L24TK9/M-280
R901147771 4WRDE25E1-220L-5X/6L24K9/M
R901102032 4WRDE16V1-200L-5X/6L24K9/V