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的(de)主要分(fen)類介紹        

NFETB320A180MB

       ASCO電(dian)(dian)磁(ci)閥(fa)(fa)(fa)（Solenoid valve）是用(yong)電(dian)(dian)磁(ci)控(kong)(kong)(kong)制(zhi)(zhi)的工(gong)業設備(bei)，是用(yong)來控(kong)(kong)(kong)制(zhi)(zhi)流體的自動化基礎元件(jian)，屬于(yu)執行器，并不限于(yu)液壓、氣動。用(yong)在工(gong)業控(kong)(kong)(kong)制(zhi)(zhi)系統(tong)中調整介質的方(fang)向、流量、速度(du)和其他的參數。電(dian)(dian)磁(ci)閥(fa)(fa)(fa)可以配合不同的電(dian)(dian)路來實現預期(qi)的控(kong)(kong)(kong)制(zhi)(zhi)，而控(kong)(kong)(kong)制(zhi)(zhi)的精度(du)和靈活性(xing)都能(neng)夠保證。電(dian)(dian)磁(ci)閥(fa)(fa)(fa)有很多種，不同的電(dian)(dian)磁(ci)閥(fa)(fa)(fa)在控(kong)(kong)(kong)制(zhi)(zhi)系統(tong)的不同位置發揮作用(yong)，常用(yong)的是單向閥(fa)(fa)(fa)、安全閥(fa)(fa)(fa)、方(fang)向控(kong)(kong)(kong)制(zhi)(zhi)閥(fa)(fa)(fa)、速度(du)調節閥(fa)(fa)(fa)等。

接下來分享ASCO電磁閥的主要分類如下：

1、電磁閥從原(yuan)理上分(fen)為三大類：

直動式電(dian)磁閥(fa)

原理：通(tong)電時(shi)，電磁(ci)線圈產生電磁(ci)力把關閉件從(cong)閥座上(shang)提(ti)起，閥門打(da)開；斷電時(shi)，電磁(ci)力消失，彈簧把關閉件壓(ya)在閥座上(shang)，閥門關閉。

特點：在真空、負壓、零(ling)壓時(shi)能正常工作，但(dan)通徑(jing)一般(ban)不超過25mm。

分步直動(dong)式電磁(ci)閥(fa)

原(yuan)理：它是一種(zhong)直(zhi)動(dong)和先(xian)(xian)導式相結合的原(yuan)理，當入口(kou)(kou)與(yu)出口(kou)(kou)沒有壓(ya)(ya)(ya)(ya)差(cha)(cha)(cha)時，通電后，電磁(ci)力(li)直(zhi)接(jie)把先(xian)(xian)導小閥(fa)(fa)和主(zhu)閥(fa)(fa)關閉件(jian)依次向上提起，閥(fa)(fa)門打開(kai)。當入口(kou)(kou)與(yu)出口(kou)(kou)達到(dao)啟動(dong)壓(ya)(ya)(ya)(ya)差(cha)(cha)(cha)時，通電后，電磁(ci)力(li)先(xian)(xian)導小閥(fa)(fa)，主(zhu)閥(fa)(fa)下腔壓(ya)(ya)(ya)(ya)力(li)上升，上腔壓(ya)(ya)(ya)(ya)力(li)下降，從而利用壓(ya)(ya)(ya)(ya)差(cha)(cha)(cha)把主(zhu)閥(fa)(fa)向上推開(kai)；斷(duan)電時，先(xian)(xian)導閥(fa)(fa)利用彈(dan)簧(huang)力(li)或介質壓(ya)(ya)(ya)(ya)力(li)推動(dong)關閉件(jian)，向下移動(dong)，使閥(fa)(fa)門關閉。

特點：在零壓(ya)差或真空(kong)、高壓(ya)時亦能可*動作(zuo)，但功率較(jiao)大，要求必須水平(ping)安裝(zhuang)。

先導(dao)式電磁閥

原理(li)：通電(dian)(dian)(dian)時(shi)，電(dian)(dian)(dian)磁力(li)(li)把先導孔打(da)(da)開(kai)，上腔(qiang)室壓力(li)(li)迅(xun)速(su)下(xia)降，在(zai)關(guan)(guan)(guan)(guan) 閉(bi)件(jian)周圍形成(cheng)上低下(xia)高的(de)壓差(cha)，流(liu)(liu)體(ti)壓力(li)(li)推動關(guan)(guan)(guan)(guan)閉(bi)件(jian)向上移(yi)動，閥門打(da)(da)開(kai)；斷(duan)電(dian)(dian)(dian)時(shi)，彈簧力(li)(li)把先導孔關(guan)(guan)(guan)(guan)閉(bi)，入(ru)口壓力(li)(li)通過旁通孔迅(xun)速(su)腔(qiang)室在(zai)關(guan)(guan)(guan)(guan)閥件(jian)周圍形成(cheng)下(xia)低上高的(de)壓差(cha)，流(liu)(liu)體(ti)壓力(li)(li)推動關(guan)(guan)(guan)(guan)閉(bi)件(jian)向下(xia)移(yi)動，關(guan)(guan)(guan)(guan)閉(bi)閥門。

特(te)點：流(liu)體壓力范(fan)圍上限(xian)較高，可(ke)任(ren)意安裝(zhuang)（需定制）但必須滿足流(liu)體壓差條件(jian)。

2、電(dian)磁(ci)閥從閥結構和材(cai)料上的(de)(de)不同(tong)與原理上的(de)(de)區別，分(fen)(fen)為六個分(fen)(fen)支小類(lei)：直(zhi)(zhi)動膜片(pian)結構、分(fen)(fen)步直(zhi)(zhi)動膜片(pian)結構、先(xian)導膜片(pian)結構、直(zhi)(zhi)動活塞結構、分(fen)(fen)步直(zhi)(zhi)動活塞結構、先(xian)導活塞結構。

3、電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)按(an)照功能分類：水用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、蒸汽電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、制冷(leng)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、低(di)溫電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、燃氣(qi)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、消防(fang)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、氨用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、氣(qi)體電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、液體電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、微型電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、脈沖電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、液壓電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa) 常開電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、油(you)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、直流電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、高壓電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)、防(fang)爆電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)等。

       ASCO電磁閥電(dian)(dian)磁閥里有(you)密閉的腔(qiang)，在不同(tong)位(wei)置開有(you)通孔(kong)，每個孔(kong)連(lian)接不同(tong)的油(you)管(guan)，腔(qiang)中間是(shi)活(huo)(huo)(huo)塞(sai)，兩面是(shi)兩塊電(dian)(dian)磁鐵(tie)，哪(na)面的磁鐵(tie)線圈通電(dian)(dian)閥體(ti)就會被(bei)吸引(yin)到哪(na)邊，通過(guo)(guo)控(kong)制閥體(ti)的移動來(lai)開啟或關閉不同(tong)的排(pai)油(you)孔(kong)，而(er)進(jin)油(you)孔(kong)是(shi)常開的，液壓油(you)就會進(jin)入(ru)不同(tong)的排(pai)油(you)管(guan)，然后通過(guo)(guo)油(you)的壓力來(lai)推動油(you)缸的活(huo)(huo)(huo)塞(sai)，活(huo)(huo)(huo)塞(sai)又帶動活(huo)(huo)(huo)塞(sai)桿，活(huo)(huo)(huo)塞(sai)桿帶動機械裝置。這樣通過(guo)(guo)控(kong)制電(dian)(dian)磁鐵(tie)的電(dian)(dian)流通斷就控(kong)制了機械運動。