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德国 Rexroth/力士乐 4WRBKE27W430SJ-1X/6ZG24K31/A1D3M 比例阀
技术参数
通径 10 至 35
3X 系列
工作压力 350 bar
流量 3000 L/min
特征描述
先导控制二级比例方向阀
用于控制液流的方向和大小
通过比例电磁铁控制
使用电位置反馈
内置放大器
比例阀是一种新型的液压控制装置。在普通压力阀、流量阀和方向阀上,用比例电磁铁替代原有的控制部分,按输入的电气信号连续地、按比例地对油流的压力、流量或方向进行远距离控制。比例阀一般都具有压力补偿性能,输出压力和流量可以不受负载变化的影响
比例阀由直流比例电磁铁与液压阀两部分组成,比例阀实现连续控制的核心是采用了比例电磁铁,比例电磁铁种类繁多,但工作原理基本相同,它们都是根据比例阀的控制需要开发出来的
电液比例阀简称比例阀。普通液压阀只能通过预调的方式对液流的压、流量进行定值控制。但是当设备机构在工作过程中要求对液压系统的压力、流量参数进行调节或连续控制,例如.要求工作台在工作进给时按慢、快、慢连续变化的速度实现进给,或按一定精度模拟某个控制曲线实现旅力控制.普通液压阀则实现不了。这时可以用电液比例阀对液压系统进行控制。
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。它山电-机械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.
常规型号如下:
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4WRPH6C3B40L-2X/G24K0/M-750
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4WRPH6C4B25P-2X/G24Z4/M
4WRPH6C4B40L-2X/G24K0/M-750
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4WRPH6C4B24L-2X/G24K0/M-750
4WRPH6C3B24L-2X/G24K0/M-750
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4WRPH6C4B40L-2X/G24K0/M-750
4WRPH6CB25P-2X/G24Z4/M