REXROTH直動(dòng)式電磁閥有常閉型和常開型二種。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啟閥，介質(zhì)呈通路；當(dāng)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)簡單，動(dòng)作可靠，在零壓差和微真空下正常工作。常開型正好相反。如小于φ6流量通徑的電磁閥。
力士樂電磁閥通電時(shí)，電磁線圈產(chǎn)生電磁力把關(guān)閉件從閥座上提起，閥門打開；斷電時(shí)，電磁力消失，彈簧把關(guān)閉件壓在閥座上，閥門關(guān)閉。
REXROTH電磁閥特點(diǎn)：在真空、負(fù)壓、零壓時(shí)能正常工作，但通徑一般不超過25mm。
當(dāng)力士樂電磁閥線圈斷電時(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)簡單，動(dòng)作可靠，在零壓差和微真空下正常工作。常開型正好相反。如小于φ6流量通徑的電磁閥。 REXROTH力士樂電磁閥閥體全不銹鋼；對于強(qiáng)腐蝕的介質(zhì)必須選用隔離膜片式。中性介質(zhì)，也宜選用銅合金為閥殼材料的電磁閥，否則，閥殼中常有銹屑脫落，尤其是動(dòng)作不頻繁的場合。氨用閥則不能采用銅材。 上海維特銳德國REXROTH電磁閥，REXROTH換向閥，REXROTH油泵，REXROTH導(dǎo)軌報(bào)價(jià)
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