力士乐比例阀4WRTE10V100L-46/6EG24K31/A1M，上海韦米机电设备有限公司主营产品之一，销售热线： ；联系人：雷青；业务QQ：---；手机微信： ； ；传真 ；原厂直销，质量保障，价格优惠！

作为变速箱和液压系统的制造商,传动和控制专家力士乐为风机制造商提供系统解决方案.
博世力士乐是全球领先的传动与控制技术专家。凭借在传动、控制以及行走机械领域内的丰富经验，博世力士乐为全球80多个国家,50多万家客户提供量身定制的解决方案，是世界工业及工厂自动化、行走机械应用与可再生能源应用市场上的佼佼者。
  
2008年博世力士乐全球销售额近59亿欧元，拥有超过35,300多名*员工。
自1978年开始，博世力士乐就开始了在中国的业务，并在上海、北京、常州和深圳建立了工厂。

 液压元件分类
　　动力元件：齿轮泵、叶片泵、柱塞泵、螺杆泵；
　　执行元件：液压缸、活塞液压缸、柱塞液压缸、摆动液压缸、组合液压缸；
　　液压马达：齿轮式液压马达、叶片液压马达、柱塞液压马达；
　　控制元件：方向控制阀、单向阀、换向阀；
　　压力控制阀：溢流阀、减压阀、顺序阀、压力继电器等；
　　流量控制阀：节流阀、调速阀、分流阀；

授权代理销售BOSCH-REXROTH博士-力士乐液压元件:电子单元，压力开关，压力继电器，液压马达，齿轮泵，减压阀，换向阀，叶片泵,电磁阀变量泵,先导式减压阀,柱塞泵,电磁阀,叠加阀,溢流阀，比例阀...

 
液控伺服阀主要是指电液伺服阀,它在接受电气模拟信号后，相应输出调制的流量和压力。它既是电液转换元件，也是功率放大元件，它能够将小功率的微弱电气输入信号转换为大功率的液压能（流量和压力）输出。在电液伺服系统中，它将电气部分与液压部分连接起来，实现电液信号的转换与液压放大。电液伺服阀是电液伺服系统控制的核心。
液控伺服阀是在伺服系统中将电信号输入转换为功率较大的压力或流量压力信号输出的执行元件。它是一种电液转换和功率放大元件。伺服阀的灵敏度高，快速性好，能将很小的电信号（例如10毫安）转换成很大的液压功率（如几十匹马力以上），可以驱动多种类型的负载。过去人们曾把喷嘴档板阀、射流管或滑阀伺服马达等液压放大装置都列入伺服阀范围内。20世纪70年代以来，伺服阀一般仅指电液伺服阀。
力士乐比例阀4WRTE10V100L-46/6EG24K31/A1M
R900954258 4WRTE10V100L-4X/6EG24K31/A1M
力士乐REXROTH三位四通高响应换向阀、先导式、电气位置反馈和集成电子放大版（OBE）4WRTE
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R900969573 4WRTE10X00L-4X/6EG24ETK31/A1M-592
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R901276446 4WRTE16E1-200L-4X/6EG24ETK31/A5M-280
R901254937 4WRTE16E1-200L-4X/6EG24ETK31/A5M=LB
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R901126879 4WRTE16E1-200L-4X/6EG24K31/F1V
R901072855 4WRTE16E1-200L-4X/6EG24TK31/A5M
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R900978843 4WRTE16E125L-4X/6EG24K31/A5M=LB
R901098097 4WRTE16E125L-4X/6EG24TK31/A5M
R901101121 4WRTE16E125P-4X/6EG24ETK31/A5WB15M
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R901117758 4WRTE16E200L-4X/6EG24EK31/A5V
R900978844 4WRTE16E200L-4X/6EG24K31/A5M=LB
R901358702 4WRTE16E200L-4X/6EG24K31/F1V
R901347336 4WRTE16E200L-4X/6EG24TK31/A1V
R901422660 4WRTE16E200L-4X/6EG24TK31/F1M
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R901348137 4WRTE16E200R-4X/6EG24K31/A5M
R901313717 4WRTE16E200R-4X/6EG24TK31/A5M=LB
R900971602 4WRTE16E200S-4X/6EG24K31/A1WB152M
R901418231 4WRTE16E220L-4X/6EG24ETK31/A1M
R901430240 4WRTE16E220L-4X/6EG24K31/A1M
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力士乐比例阀4WRTE10V100L-46/6EG24K31/A1M

伺服阀的主阀一般来说和换向阀一样是滑阀结构，只不过阀芯的换向不是靠电磁铁来推动，而是靠前置级阀输出的液压力来推动，这一点和电液换向阀比较相似，只不过电液换向阀的前置级阀是电磁换向阀，而伺服阀的前置级阀是动态特性比较好的喷嘴挡板阀或射流管阀。
也就是说，伺服阀的主阀是靠前置级阀的输出压力来控制的，而前置级阀的压力则来自于伺服阀的入口p，假如p口的压力不足，前置级阀就不能输出足够的压力来推动主阀芯动作。
而我们知道，当负载为零的时候，如果四通滑阀完全打开，p口压力=t口压力+阀口压力损失（忽略油路上的其它压力损失），如果阀口压力损失很小，t口压力又为零，那么p口的压力就不足以供给前置级阀来推动主阀芯，整个伺服阀就失效了。所以伺服阀的阀口做得偏小，即使在阀口全开的情况下，也要有一定的压力损失，来维持前置级阀的正常工作。
力士乐比例阀4WRTE10V100L-46/6EG24K31/A1M
力士乐REXROTH高响应方向阀，先导，带集成电控装置（OBE）和电气位置反馈4WRDE -5X
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力士乐REXROTH三位四通高响应换向阀，先导操作，具有电气位置反馈4WRD...XN
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