上海維特銳在力士樂(lè)電磁閥方面，已有多年經(jīng)驗(yàn)，可為您提供安全放心的產(chǎn)品 力士樂(lè)先導(dǎo)式電磁閥由先導(dǎo)閥和主閥芯著形成通道組合而成；常閉型在未通電時(shí)，呈關(guān)閉狀態(tài)。當(dāng)線圈通電時(shí)，產(chǎn)生的磁力使動(dòng)鐵芯和靜鐵芯吸合，導(dǎo)閥口打開(kāi)，介質(zhì)流向出口，此時(shí)主閥芯上腔壓力減少，低于進(jìn)口側(cè)的壓力，形成壓差克服彈簧阻力而隨之向上運(yùn)動(dòng)，達(dá)到開(kāi)啟主閥口的目的，介質(zhì)流通。 力士樂(lè)電磁閥線圈斷電時(shí)，磁力消失，動(dòng)鐵芯在彈簧力作用下復(fù)位關(guān)閉先導(dǎo)口，此時(shí)介質(zhì)從平衡孔流入，主閥芯上腔壓力增大，并在彈簧力的作用下向下運(yùn)動(dòng)，關(guān)閉主閥口。
REXROTH先導(dǎo)式電磁閥通電時(shí)，電磁力把先導(dǎo)孔打開(kāi)，上腔室壓力迅速下降，在關(guān) 閉件周?chē)纬缮系拖赂叩膲翰睿黧w壓力推動(dòng)關(guān)閉件向上移動(dòng)，閥門(mén)打開(kāi)；斷電時(shí)，彈簧力把先導(dǎo)孔關(guān)閉，入口壓力通過(guò)旁通孔迅速腔室在關(guān)閥件周?chē)纬上碌蜕细叩膲翰?，流體壓力推動(dòng)關(guān)閉件向下移動(dòng)，關(guān)閉閥門(mén)。
力士樂(lè)先導(dǎo)式電磁閥特點(diǎn)：流體壓力范圍上限較高，可任意安裝（需定制）但必須滿足流體壓差條件。
力士樂(lè)電磁閥閥體全不銹鋼；對(duì)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(chǎng)合。氨用閥則不能采用銅材。 上海維特銳供應(yīng)的力士樂(lè)電磁閥有很多種，不同的REXROTH電磁閥在控制系統(tǒng)的不同位置發(fā)揮作用。 上海維特銳長(zhǎng)期供應(yīng)力士樂(lè)電磁閥的型號(hào)有
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