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HYDAC賀德(dé)克(kè)3019736綫(xiàn)圈(quān)230V配WSM08130現貨庫存(cún)
先導(dǎo)式(shì)電(diàn)磁閥(fá)
原理:通電(diàn)時,電(diàn)磁力把(bǎ)先(xiān)導孔打(dǎ)開(kāi),上腔(qiāng)室(shì)壓力(lì)迅速下(xià)降,在關(guān) 閉件周圍(wéi)形成(chéng)上低(dī)下(xià)高(gāo)的(dí)壓(yā)差,流體壓(yā)力推動(dòng)關閉件向(xiàng)上移動,閥(fá)門(mén)打(dǎ)開(kāi);斷(duàn)電時,彈簧(huáng)力(lì)把先(xiān)導(dǎo)孔關閉,入口(kǒu)壓力通(tōng)過(guò)旁通孔(kǒng)迅(xùn)速腔室(shì)在關閥(fá)件周(zhōu)圍形成(chéng)下(xià)低上高的壓差(chà),流體(tǐ)壓(yā)力推(tuī)動關(guān)閉件(jiàn)向下移(yí)動,關閉閥門。
特點(diǎn):流體(tǐ)壓力範(fàn)圍上限較高(gāo),可(kě)任意(yì)安裝(需(xū)定(dìng)製(zhì))但必(bì)須滿(mǎn)足流體壓(yā)差(chà)條(tiáo)件(jiàn)。

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