新型的伺服阀正试图克服这些缺点,例如利用电致伸缩元件的伺服阀,使结构大为简化。，另一个方向是研制特殊的工作油（如电气油）。这种工作油能在电磁的作用下改变系数。利用这一性质就可通过电信号直接控制油流。
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4WS2EM16-2X/200B12T315K8CV-114德国力士乐比例阀 比例伺服阀 方向伺服阀 伺服控制器 电液比例阀是一种按输入的电信号连续地、按比例地控制液压系统的液流方向、流量和压力的
的详细信息
（3）电液式 电液式是指采用力矩马达和喷嘴挡板的结构为先导控制级的比例阀。对力矩马达输入不同的电信号，并通过同它连接在一起的挡板（有时力矩马达的衔铁就是挡板）输出位移或角位移，改变挡板和喷嘴之间的距离，使喷嘴喷出的油液流阻产生变化，进而控制输小参数。
型号 4WS2EM...XN
4通伺服阀
4WS2EM16-2X/200B12T315K8CV-114比例阀三种形态
（1）电磁式 电磁式是指采用比例电磁铁作为电气一机械转换元件的比例阀，比例电磁铁将输入的电流信号转换成力、位移机械信号输出．进而控制压力、流量及方向等参数。
（2）电动式 电动式是指采用直流伺服电动机作为电气一机械转换元件的比例阀，直流伺服电动机将输入的电信号．转换成旋转运动转速，再经丝杆螺母、齿轮齿条或齿轮凸轮等减速装置和变换机构，输出力与位移，进一步控制液压参数。
规格6
元件系列2X
*大工作压力210/315 bar
*大流量48 l/min
应用根据防爆指示94/9/EC94/9/EC
型号 4WS2EM...XN
4通伺服阀
规格10
元件系列5X
*大工作压力315bar
*大流量180 l/min
应用根据防爆指示94/9/EC
环境温度范围–30 °C * +70 °C
型号 4WS2EM...XH and 4WS2EM…VH1
4通伺服阀
规格10
元件系列5X
*大工作压力315 bar
*大流量180 l/min
应用根据防爆指示94/9/EC
适用于美国FM许可"VH1"
环境温度范围–20 °C*60 °C
4WS2EM16-2X/200B12T315K8CV-114德国力士乐比例阀 比例伺服阀 方向伺服阀 伺服控制器
电液比例阀是一种按输入的电信号连续地、按比例地控制液压系统的液流方向、流量和压力的阀类。它由机械(http://www.chemdrug.com/sell/22/)比例转换装置和液压控制阀本体两大部分构成.前者将输入的电信号连续地按比例地转换为机械力和位移输出，后者在接受这种机械力和位移之后、按比例连续地输出压力和流量.
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R9006176784WS2EM6-2X/5B12ET210K17EV
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R9011201594WS2EM10-5X/20B11T315K31CV-102
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R9011191564WS2EM10-5X/75B11XHET210K31EV-100
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R9011088514WS2EM10-5X/75B11XHE315K31EV
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R9011014694WS2EM10-5X/75B11T315K8CV-104
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R9010914764WS2EM6-2X/25B11ET315K17EV
4WS2EM16-25/200B12T315-K8CV-114 R900944630力士乐伺服阀结构比较复杂,造价高,对油的质量和清洁度要求高。
新型的伺服阀正试图克服这些缺点,例如利用电致伸缩元件的伺服阀,使结构大为简化。，另一个方向是研制特殊的工作油（如电气油）。这种工作油能在电磁的作用下改变系数。利用这一性质就可通过电信号直接控制油流。
4WS2EM16-25/200B12T315-K8CV-114 R900944630力士乐伺服阀由永磁力矩马达,喷嘴,阀芯,阀套和控制腔组成(见图)。当输入线圈通入电流时,向右移动,使右边喷嘴的节流作用加强,流量减少,右侧背压上升；同时使左边喷嘴节流作用减小,流量增加,左侧背压下降。阀芯两端的作用力失去平衡, 阀芯遂向左移动。德国原装力士乐REXROTH比例换向阀4WS2EM16-24/200B12T315K8CV-114功能类似伊顿威格士伺服阀SM4系列，先导式2级比例方向阀，带主阀芯和集成电子元件(OBE)的电气位置反馈，设计系列3X 系列30至39，主要用于冶金等行业控制流量的方向和大小。
优势供应电厂力士乐伺服阀，伊顿EH油泵，贺德克蓄能器皮囊等顶轴油系统以及旁路系统进口备件的上海恒传机电设备有限公司值得您百度一下联系宋工！
规格10
元件系列5X
**大工作压力315 bar
**大流量180 l/min
应用根据防爆指示94/9/EC
适用于美国FM许可"VH1"
环境温度范围–20 °C至60 °C
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R900937090 4WS2EM10-4X/5B2ET315K8EV
R900937019 4WS2EM16-2X/150B12ET315K8DV
R900936559 4WS2EM10-4X/75B2ET315K8EV
R900935472 4WS2EM10-4X/10B1T315K8AM
R900935340 4WS2EM10-4X/10B2ET315K8EV
R900934353 4WS2EM10-4X/30B2ET315K8EV
R900932667 4WS2EM10-5X/75B11-315K31EV
R900931560 4WS2EM16-2X/150B12ET315K8DM
R900925566 4WS2EM10-4X/20B3ET315K8BM
R900924424 4WS2EM10-5X/75B11T210K31EV
R900922944 4WS2EM16-2X/150B12ET210K8EM
R900922801 4WS2EM10-5X/90B11ET315K31EV
R900922452 4WS2EM10-4X/10B2T315K8DM
R900917408 4WS2EM10-4X/75B3ET315K8AM
R900909297 4WS2EM10-5X/45B11ET315K31EV
R900909227 4WS2EM10-5X/20B11ET315K31EV
R900909226 4WS2EM10-5X/30B11ET210K31EV
R900909219 4WS2EM10-5X/75B11ET315K31EV
R900907956 VT 17217-1X/0 (MOD.VT-SR1/0 4WS2EM10)
R900907337 4WS2EM10-4X/45B2T315K8EV
R900905399 4WS2EM10-4X/30B2T315K8DM
R900901181 4WS2EM10-4X/45B2ET315CEV
