電動對夾三偏心硬密封蝶閥安裝維護注意事項：

1、對(dui)夾(jia)式電動(dong)蝶(die)閥(fa)不能換向(xiang)(xiang)或(huo)換向(xiang)(xiang)動(dong)作緩慢，一般是因(yin)潤滑(hua)(hua)不良、彈(dan)簧被卡住或(huo)損壞(huai)、油污(wu)或(huo)雜質(zhi)卡住滑(hua)(hua)動(dong)部分等原因(yin)引起(qi)的(de)。對(dui)此，應先(xian)檢查油霧器的(de)工作是否正常;潤滑(hua)(hua)油的(de)粘度是否合適(shi)。必(bi)要時(shi)，應更換潤滑(hua)(hua)油，清洗對(dui)夾(jia)式電動(dong)蝶(die)閥(fa)的(de)滑(hua)(hua)動(dong)部分，或(huo)更換彈(dan)簧和(he)對(dui)夾(jia)式電動(dong)蝶(die)閥(fa)。

2、對夾式電(dian)動蝶(die)閥(fa)經長時間使用后易(yi)出現閥(fa)芯密封(feng)圈磨(mo)損(sun)、閥(fa)桿和(he)閥(fa)座損(sun)傷的(de)現象，導致閥(fa)內(nei)氣(qi)體泄漏(lou)，閥(fa)的(de)動作緩(huan)慢或不(bu)能正常換向等故障。此時，應更換密封(feng)圈、閥(fa)桿和(he)閥(fa)座，或將對夾式電(dian)動蝶(die)閥(fa)變新。

3、若電(dian)(dian)(dian)磁先導閥的進(jin)、排(pai)氣孔被(bei)油泥等雜物(wu)堵塞，封閉(bi)不嚴，活(huo)(huo)動鐵芯(xin)被(bei)卡(ka)死，電(dian)(dian)(dian)路有故障(zhang)(zhang)等，均可(ke)導致對夾式電(dian)(dian)(dian)動蝶閥不能正常換向(xiang)。對前(qian)3種情況應清洗先導閥及活(huo)(huo)動鐵芯(xin)上的油泥和雜質。而(er)電(dian)(dian)(dian)路故障(zhang)(zhang)一般又分為(wei)控制電(dian)(dian)(dian)路故障(zhang)(zhang)和電(dian)(dian)(dian)磁線圈故障(zhang)(zhang)兩類。

在(zai)檢查(cha)電(dian)(dian)(dian)(dian)路(lu)故障(zhang)前，應先(xian)將對夾式電(dian)(dian)(dian)(dian)動(dong)蝶(die)閥(fa)的(de)手動(dong)旋鈕轉動(dong)幾下，看對夾式電(dian)(dian)(dian)(dian)動(dong)蝶(die)閥(fa)在(zai)額定(ding)的(de)氣壓(ya)(ya)(ya)下是否能正常換向(xiang)，若能正常換向(xiang)，則是電(dian)(dian)(dian)(dian)路(lu)有故障(zhang)。檢查(cha)時，可用(yong)儀表測量電(dian)(dian)(dian)(dian)磁線圈的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，看是否達(da)到了額定(ding)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，如果電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)過低(di)，應進一步檢查(cha)控制(zhi)電(dian)(dian)(dian)(dian)路(lu)中的(de)電(dian)(dian)(dian)(dian)源(yuan)和相關聯(lian)的(de)行程開(kai)關電(dian)(dian)(dian)(dian)路(lu)。