REXROTH直動(dòng)式電磁閥有常閉型和常開(kāi)型二種,。常閉型斷電時(shí)呈關(guān)閉狀態(tài),，當(dāng)線圈通電時(shí)產(chǎn)生電磁力，使動(dòng)鐵芯克服彈簧力同靜鐵芯吸合直接開(kāi)啟閥,，介質(zhì)呈通路,；

    REXROTH電磁閥它由閥體、閥罩,、電磁組件,、彈簧及密封結(jié)構(gòu)等部件組成，動(dòng)鐵芯底部的密封塊借助彈簧的壓力將閥體進(jìn)氣口關(guān)閉,。

    力士樂(lè)電磁閥通電后,，電磁鐵吸合，動(dòng)鐵芯上部帶彈簧的密封塊把排氣口關(guān)閉,，氣流從進(jìn)氣口進(jìn)入膜頭,，起到控制作用。當(dāng)失電時(shí),，電磁力消失,，動(dòng)鐵芯在彈簧力作用下離開(kāi)固定鐵芯。

    上海維特銳在德國(guó)設(shè)有分公司，專(zhuān)做進(jìn)口儀器儀表,，氣動(dòng)液壓類(lèi)產(chǎn)品15年,，長(zhǎng)期供應(yīng)力士樂(lè)電磁閥、REXROTH泵,、力士樂(lè)放大器（可調(diào)現(xiàn)貨）

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    力士樂(lè)電磁閥線圈斷電時(shí)電磁力消失,，動(dòng)鐵芯在彈簧力的作用下復(fù)位，直接關(guān)閉閥口,，介質(zhì)不通,。結(jié)構(gòu)簡(jiǎn)單，動(dòng)作可靠,，在零壓差和微真空下正常工作,。常開(kāi)型正好相反。如小于φ6流量通徑的電磁閥,。