4WMM10J3X/手动换向阀

技术参数：

通径6、10、16、25

压力至35Mpa

流量至450L/min

介质：矿物质液压油或磷酸酯液压油

温度：-30~ 80℃

粘度：2.8~500mm2/s

流量：6通径（至60L/min）、10通径（至100L/min）、16通径（至300L/min）、25通径（至450L/min）

工作压力：6、10通径（油口A、B、P 至31.5MP a，油口T 至15MPa）。

16、25通径（油口A、B、P 至35MP a，油口T 至25MPa

众所周知，液压系统一般由能源部分（液压泵与原动机的统称）、控制部分（方向控制阀、压力控制阀及流量控制阀等各类液压控制阀的统称）、执行器（液压缸、液压马达及摆动液压马达的统称）和辅助部分（蓄能器、油箱、过滤器，压力表及压力开关、管件等的统称）四个部分组成。

说明

WMM型手动换向阀是通过手柄的转动使阀芯做轴向移动从而对油路进行切换的直动式换向滑阀。具有二位三通，二位四通和三位四通多种滑阀机能。并可选择定位设备和弹簧复位装置，采用板式连接。

 WMM…/型（带复位弹簧，不带定位设备）：

该阀由阀体、手柄、阀芯、一个或两个复位弹簧和推杆等组成。

当未操纵手柄时，阀芯被复位弹簧保持在中位或初始位置上，当向右或向左推动手柄2时，手柄通过铰链推动推杆并直接控制阀芯，阀芯便移动到要求的位置，从而获得所需要的流动截面。当手柄回到零位时，控制阀芯借助复位弹簧回到正常位置。这种阀的切换位置由手柄操纵确定。

WMM…/F型（不带复位弹簧，带定位设备）：

原理上与WMM…/基本相同，但这种形式的阀是有二个或者三个切换位置和一个定位设备的控制阀。因而所有切换位置是固定的。

插装阻尼器：

由于工作条件限制，切换过程中可能出现阀的流量超过阀性能曲线上规定的流量，这时需要采用阻尼器。它安装在阀的P腔或油路中。

WMM阀采用板式连接。较国内其它系统阀具有体积小，通流能力大，可靠性好等优点，可与相同通径的叠加阀使用。广泛应用于工程机械、煤矿机械、化工机械、轻工机械、机车等各行业中。

4WMM10J3X/手动换向阀型号

力士乐REXROTH定向滑阀，直接操作，手动驱动WMM 10

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方向控制阀 按用途分为单向阀和换向阀。单向阀：只允许流体在管道中单向接通，反向即切断。换向阀：改变不同管路间的通﹑断关系﹑根据阀芯在阀体中的工作位置数分两位﹑三位等；根据所控制的通道数分两通﹑三通﹑四通﹑五通等；根据阀芯驱动方式分手动﹑机动﹑电动﹑液动等。三位四通换向阀的工作原理。P 为供油口，O 为回油口，A ﹑B 是通向执行元件的输出口。当阀芯处於中位时，全部油口切断，执行元件不动；当阀芯移到右位时，P 与A 通，B 与O 通；当阀芯移到左位时，P 与B 通，A 与O 通。