DGMPC7ABKBAK30威格士現(xiàn)貨
武穴黎翔機(jī)電設(shè)備有限公司專業(yè)經(jīng)營(yíng)美國(guó)威格士VICKERS，具體產(chǎn)品有威格士電磁閥...威格士換向閥....威格士減壓閥...威格士節(jié)流閥...威格士流量控制閥...威格士溢流閥...威格士葉片泵...威格士柱塞泵... 威格士全系列：大量現(xiàn)貨庫(kù)存，歡迎來(lái)電咨詢。
詢價(jià)聯(lián)系人：陳工
詢價(jià)熱線： 0713-8529058，18995766168
詢價(jià)QQ:1477538929， 2982072083
歡迎您的來(lái)電！
傳真：0713-6542758
主要分類1、電磁閥從原理上分為三大類：
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。
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。
分步直動(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，閥門打開。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；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。
先導(dǎo)式電磁閥
原理：通電時(shí)，電磁力把先導(dǎo)孔打開，上腔室壓力迅速下降，在關(guān) 閉件周圍形成上低下高的壓差，流體壓力推動(dòng)關(guān)閉件向上移動(dòng)，閥門打開；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)閥件周圍形成下低上高的壓差，流體壓力推動(dòng)關(guān)閉件向下移動(dòng)，關(guān)閉閥門。
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。
2、電磁閥從閥結(jié)構(gòu)和材料上的不同與原理上的區(qū)別，分為六個(gè)分支小類：直動(dòng)膜片結(jié)構(gòu)、分步直動(dòng)膜片結(jié)構(gòu)、先導(dǎo)膜片結(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)。
3、電磁閥按照功能分類：水用電磁閥、蒸汽電磁閥、制冷電磁閥、低溫電磁閥、燃?xì)怆姶砰y、消防電磁閥、氨用電磁閥、氣體電磁閥、液體電磁閥、微型電磁閥、脈沖電磁閥、液壓電磁閥 常開電磁閥、油用電磁閥、直流電磁閥、高壓電磁閥、防爆電磁閥等。
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DT15S2-060-K-11
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PVH131R13AF30A250000001001AE010A
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PVQ20-B2R-SE1S-20-C21-11-S2
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