3通直動式電磁閥SMC型號構成 

它是一種直動(dong)和先(xian)(xian)(xian)導(dao)式相結合的原理，當入口(kou)與(yu)出口(kou)沒有壓差(cha)(cha)時(shi)，通電后，電磁力(li)(li)(li)(li)直接把先(xian)(xian)(xian)導(dao)小閥(fa)(fa)和主(zhu)閥(fa)(fa)關(guan)閉(bi)件依次(ci)向上(shang)提起，閥(fa)(fa)門(men)打開。當入口(kou)與(yu)出口(kou)達(da)到啟動(dong)壓差(cha)(cha)時(shi)，通電后，電磁力(li)(li)(li)(li)先(xian)(xian)(xian)導(dao)小閥(fa)(fa)，主(zhu)閥(fa)(fa)下(xia)(xia)腔壓力(li)(li)(li)(li)上(shang)升，上(shang)腔壓力(li)(li)(li)(li)下(xia)(xia)降，從而利用壓差(cha)(cha)把主(zhu)閥(fa)(fa)向上(shang)推開;斷電時(shi)，先(xian)(xian)(xian)導(dao)閥(fa)(fa)利用彈簧(huang)力(li)(li)(li)(li)或介質(zhi)壓力(li)(li)(li)(li)推動(dong)關(guan)閉(bi)件，向下(xia)(xia)移動(dong)，使閥(fa)(fa)門(men)關(guan)閉(bi)。

通電(dian)時(shi)電(dian)磁(ci)線圈產生足夠的電(dian)磁(ci)力把運(yun)動部件(jian)(jian)(由磁(ci)芯、閥(fa)桿、上下部的膜片/密封件(jian)(jian)構成)從閥(fa)座上提起，閥(fa)門開啟;斷電(dian)時(shi)彈簧力把運(yun)動部件(jian)(jian)壓在閥(fa)座上，閥(fa)門關閉。

特(te)點:1.在真(zhen)空、負壓(ya)(ya)、零壓(ya)(ya)時能正常工作，但(dan)通(tong)徑一般不超過(guo)25mm。

在(zai)一些特(te)(te)殊的(de)(de)工(gong)作場所，和用在(zai)特(te)(te)殊介(jie)質(zhi)的(de)(de)電磁(ci)閥(fa)，例如(ru)有酸堿性介(jie)質(zhi)的(de)(de)工(gong)作環境，黃銅和不(bu)銹鋼材質(zhi)的(de)(de)電磁(ci)閥(fa)產品均(jun)容易被腐蝕，所以用特(te)(te)殊材質(zhi)（工(gong)程塑(su)料PVC、 CPVC、UPVC、ABS或聚四氟等）做(zuo)成的(de)(de)塑(su)料電磁(ci)閥(fa)在(zai)耐腐蝕性能上特(te)(te)別優秀

2.在零壓差或真(zhen)空、高壓時亦可動(dong)作，但功率(lv)較(jiao)大，要求(qiu)必須水平(ping)安裝。

電磁(ci)閥(fa)從閥(fa)結(jie)(jie)(jie)構(gou)和材料上的不同與原理上的區(qu)別，分(fen)(fen)為(wei)六個(ge)分(fen)(fen)支小類：直動(dong)膜片(pian)結(jie)(jie)(jie)構(gou)、分(fen)(fen)步直動(dong)膜片(pian)結(jie)(jie)(jie)構(gou)、先導(dao)膜片(pian)結(jie)(jie)(jie)構(gou)、直動(dong)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)、分(fen)(fen)步直動(dong)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)、先導(dao)活(huo)塞(sai)結(jie)(jie)(jie)構(gou)。

電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)按照功能分類(lei)：水用電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、蒸汽電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、制(zhi)冷電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、低溫電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、燃氣(qi)電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、消防電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、氨用電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、氣(qi)體電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、液體電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、微型電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、脈沖電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、液壓電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、常(chang)開電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、油用電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、直流電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、高壓電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)、防爆(bao)電(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)(fa)(fa)等。

3通直動式電磁閥SMC型號構成