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产品简介：

插装阀已经广泛应用于多种工程机械、物料搬运机械和农业机械。在常被忽视的工业领域中，插装阀的应用在不断的扩大。特别是在许多重量和空间的限制的场合中，传统工业液压阀束手无策，而插装阀却大显身手。在某些应用场合，插装阀是提高生产力和竞争力的选择

新型插装阀的功能正不断被开发出来。这些新开发成果将保证将来可持续的生产效益。过去的经验证明：想象力的贫乏是采用插装阀实现生产既期效益的限制。

插装阀单元的工作状态 记油口A、B、x的压力分别为pA、pB、px， 作用面积分别为AA、AB、Ax， 阀芯上端复位弹簧力为Ft ， 当 pxAx Ft >pAAA pBAB 时 阀口关闭 ； 当 pxAx Ft ≤ pAAA pBAB 时 阀口开启。

实际工作时，阀芯的受力状况是通过油口x的通油方式控制的。

X通回油箱，阀口开启；

x与进油口相通，阀口关闭。

改变油口通油方式的阀称为先导阀。

插装阀的应用

三通阀 由两个方向阀组件并联而成，对外形成一个压力油口、一个工作油口和一个回油口。三通插装阀的工作状态数取决于先导换向阀的工作位置数。

四通阀由两个三通阀并联而成

先导阀可以是一个三位四通换向阀

先导阀也可以是两个二位四通换向阀或四个二位三通换向阀

四通插装阀的工作状态数取决于先导换向阀的工作位置数。

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