在使用SMC電磁閥安裝之前需要注意哪些步驟？

在使用SMC電磁閥安裝之前需要注意哪些步驟？
SMC電磁閥在電磁力將導閥打開，導閥設在主閥口上，此時主閥上腔的壓力通過導閥口卸荷，主閥下腔壓力大于上腔壓力，在利用壓力差和電磁力的共同作用下使主閥芯向上運動，電磁閥打開，介質流通；線圈斷電時，電磁力消失，在動鐵芯的自重和彈簧力的作用下關閉導閥孔，此時介質在平衡孔中進入主閥上腔，使上腔壓力升高，在彈簧力和壓力的作用下關閉主閥，介質斷流。 常開型與此相反；在零壓差或高壓時可靠工作，但功率及體積較大；導式電磁閥：由導閥和主閥芯連著形成通道，常閉型電磁閥電磁前驅通電時，產生的電磁力使導閥打開，介質流向出口，主閥上腔壓力迅速下降，在主閥上下腔內形成壓差克服彈簧力而隨之向上運動，主閥開啟，介質暢通流暢，電磁閥開啟；線圈斷電時，電磁力消失，動鐵芯在彈簧力的作用下復位，封閉導閥，介質從平衡孔中流入，主閥芯上腔壓力增大，并在彈簧力的作用下向下運動，封閉主閥，介質斷流，電磁閥封閉。常開型與此相反；體積小，功率低，但介質壓差范圍受限，管道中壓力必需知足開啟的壓差前提。
SMC電磁閥的對流體通路的開關功能是通過其內部的電磁動鐵芯的晉升或落下來實現的，而動鐵芯的動作是由電磁線圈的通電或斷電來完成；
當入(ru)口與出口達到啟動(dong)(dong)壓(ya)(ya)(ya)差(cha)(cha)時，通(tong)電(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)力(li)(li)導(dao)(dao)(dao)(dao)小閥(fa)，主(zhu)閥(fa)下(xia)(xia)(xia)腔(qiang)(qiang)壓(ya)(ya)(ya)力(li)(li)上(shang)(shang)升，上(shang)(shang)腔(qiang)(qiang)壓(ya)(ya)(ya)力(li)(li)下(xia)(xia)(xia)降，從而利(li)用(yong)壓(ya)(ya)(ya)差(cha)(cha)把(ba)主(zhu)閥(fa)向上(shang)(shang)推(tui)開；斷電(dian)(dian)(dian)(dian)時，導(dao)(dao)(dao)(dao)閥(fa)利(li)用(yong)彈簧力(li)(li)或(huo)介質(zhi)壓(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)閉(bi)(bi)件(jian)，向下(xia)(xia)(xia)移(yi)動(dong)(dong)，使閥(fa)門關(guan)(guan)(guan)閉(bi)(bi)。   特點(dian)： 在(zai)(zai)零壓(ya)(ya)(ya)差(cha)(cha)或(huo)真空、高壓(ya)(ya)(ya)時亦能可(ke)*動(dong)(dong)作(zuo)，但功(gong)率較(jiao)(jiao)大，要求必須(xu)水(shui)平安(an)裝(zhuang)(zhuang)。   3）導(dao)(dao)(dao)(dao)式電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)：   原(yuan)理：通(tong)電(dian)(dian)(dian)(dian)時，電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)力(li)(li)把(ba)導(dao)(dao)(dao)(dao)孔(kong)打開，上(shang)(shang)腔(qiang)(qiang)室壓(ya)(ya)(ya)力(li)(li)迅(xun)速下(xia)(xia)(xia)降，在(zai)(zai)關(guan)(guan)(guan)閉(bi)(bi)件(jian)周圍形成上(shang)(shang)低下(xia)(xia)(xia)高的(de)壓(ya)(ya)(ya)差(cha)(cha)，流(liu)體壓(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)閉(bi)(bi)件(jian)向上(shang)(shang)移(yi)動(dong)(dong)，閥(fa)門打開；斷電(dian)(dian)(dian)(dian)時，彈簧力(li)(li)把(ba)導(dao)(dao)(dao)(dao)孔(kong)關(guan)(guan)(guan)閉(bi)(bi)，入(ru)口壓(ya)(ya)(ya)力(li)(li)通(tong)過旁通(tong)孔(kong)迅(xun)速腔(qiang)(qiang)室在(zai)(zai)關(guan)(guan)(guan)閥(fa)件(jian)周圍形成下(xia)(xia)(xia)低上(shang)(shang)高的(de)壓(ya)(ya)(ya)差(cha)(cha)，流(liu)體壓(ya)(ya)(ya)力(li)(li)推(tui)動(dong)(dong)關(guan)(guan)(guan)閉(bi)(bi)件(jian)向下(xia)(xia)(xia)移(yi)動(dong)(dong)，關(guan)(guan)(guan)閉(bi)(bi)閥(fa)門。   特點(dian)： 流(liu)體壓(ya)(ya)(ya)力(li)(li)范圍上(shang)(shang)限較(jiao)(jiao)高，可(ke)任意(yi)安(an)裝(zhuang)(zhuang)（需定制）但必須(xu)滿(man)足流(liu)體壓(ya)(ya)(ya)差(cha)(cha)條件(jian)。   2.電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)從閥(fa)結(jie)(jie)構(gou)和(he)材(cai)料上(shang)(shang)的(de)不同與原(yuan)理上(shang)(shang)的(de)區(qu)別，分(fen)(fen)為六個分(fen)(fen)支(zhi)小類：   直(zhi)(zhi)動(dong)(dong)膜片(pian)結(jie)(jie)構(gou)、分(fen)(fen)步直(zhi)(zhi)動(dong)(dong)膜片(pian)結(jie)(jie)構(gou)、導(dao)(dao)(dao)(dao)膜片(pian)結(jie)(jie)構(gou)、直(zhi)(zhi)動(dong)(dong)活(huo)塞(sai)結(jie)(jie)構(gou)、分(fen)(fen)步直(zhi)(zhi)動(dong)(dong)活(huo)塞(sai)結(jie)(jie)構(gou)、導(dao)(dao)(dao)(dao)活(huo)塞(sai)結(jie)(jie)構(gou)。   3、電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)-功(gong)能分(fen)(fen)類   水(shui)用(yong)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa) 大通(tong)徑燃氣電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa) 蒸汽電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa) 制冷(leng)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa) 三(san)通(tong)電(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)