REXROTH电磁阀液压装置中容易产生噪声的元件一般认为是泵和阀，阀中又以溢流阀和电磁换向阀等为主。产生噪声的因素很多。

    力士乐电磁阀的噪声有流速声和机械声二种。流速声中主要由油液振动、空穴以及液压冲击等原因产生的噪声。机械声中主要由阀中零件的撞击和磨擦等原因产生的噪声。

    REXROTH电磁阀由阀体、阀罩、电磁组件、弹簧及密封结构等部件组成，动铁芯底部的密封块借助弹簧的压力将阀体进气口关闭。通电后，电磁铁吸合，动铁芯上部带弹簧的密封块把排气口关闭，气流从进气口进入膜头，起到控制作用。

    当力士乐电磁阀失电时，电磁力消失，动铁芯在弹簧力作用下离开固定铁芯，向下移动，将排气口打开，堵住进气口，膜头气流经排气口排出，膜片恢复原来位置。在我们的制氧设备中，在透平膨胀机进口薄膜调节阀的紧急切断等处有应用。

    力士乐电磁阀爆炸性环境：必须选用相应防爆等级产品，露天安装或粉尘多场合应选用防水，防尘品种。

    REXROTH电磁阀公称压力应超过管内zui高工作压力。

上海维特锐在德国与REXROTH合作，可长期稳定供应REXROTH电磁阀，REXROTH换向阀，REXROTH油泵，REXROTH导轨，力士乐柱塞泵等产品

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