力士樂(lè)Rexroth電液換向閥4WEH10H4X/6EG24N9K4
德國(guó)力士樂(lè)Rexroth電磁閥分類
力士樂(lè)Rexroth電磁閥從原理上分為三大類（即：直動(dòng)式、分步直動(dòng)式、先導(dǎo)式），而從閥瓣結(jié)構(gòu)和材料上的不同與原理上的區(qū)別又分為六個(gè)分支小類（直動(dòng)膜片結(jié)構(gòu)、分步重片結(jié)構(gòu)、先導(dǎo)膜式結(jié)構(gòu)、直動(dòng)活塞結(jié)構(gòu)、分步直動(dòng)活塞結(jié)構(gòu)、先導(dǎo)活塞結(jié)構(gòu)）。
1. 直動(dòng)式電磁閥：
原理：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(mén)打開(kāi)；斷電時(shí)，電磁力消失，彈簧把關(guān)閉件壓在閥座上，閥門(mén)關(guān)閉。
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(guò)25mm。
2.分布直動(dòng)式電磁閥：
原理：它是一種直動(dòng)和先導(dǎo)式相結(jié)合的原理，當(dāng)入口與出口沒(méi)有壓差時(shí)，通電后，電磁力直接把先導(dǎo)小閥和主閥關(guān)閉件依次向上提起，閥門(mén)打開(kāi)。當(dāng)入口與出口達(dá)到啟動(dòng)壓差時(shí)，通電后，電磁力先導(dǎo)小閥，主閥下腔壓力上升，上腔壓力下降，從而利用壓差把主閥向上推開(kāi)；斷電時(shí)，先導(dǎo)閥利用彈簧力或介質(zhì)壓力推 動(dòng)關(guān)閉件，向下移動(dòng)，使閥門(mén)關(guān)閉。
特點(diǎn)：在零壓差或真空、高壓時(shí)亦能可*動(dòng)作，但功率較大，要求必須水平安裝。
3.先導(dǎo)式電磁閥：力士樂(lè)Rexroth電液換向閥4WEH 10H4X/6EG24N9K4
原理：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)。
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H-4WEH10J4X/6EG24N9K4力士樂(lè)電液閥
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昆山雷德萊恩*銷(xiāo)售4WEH 10H4X/6EG24N9K4
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