介紹SMC電磁閥工作原理

SMC電磁閥通常與單作用氣動執行機構配套使用，兩位是兩個位置可控：開-關，三通是有三個通道通氣，一般情況下1個通道與氣源連接，另外兩個通道1個與執行機構的進氣口連接，1個與執行機構排氣口連接，具體的工作原理可以參照單作用氣動執行機構的工作原理圖。 兩位五通SMC電磁閥通(tong)常與(yu)雙作(zuo)用(yong)氣(qi)(qi)動執(zhi)行機構配套使用(yong)，兩(liang)位(wei)是兩(liang)個(ge)(ge)(ge)位(wei)置可控：開-關，五(wu)通(tong)是有五(wu)個(ge)(ge)(ge)通(tong)道通(tong)氣(qi)(qi)，其中(zhong)1個(ge)(ge)(ge)與(yu)氣(qi)(qi)源連(lian)接，兩(liang)個(ge)(ge)(ge)與(yu)雙作(zuo)用(yong)氣(qi)(qi)缸的外部(bu)氣(qi)(qi)室(shi)的進出(chu)氣(qi)(qi)口(kou)連(lian)接，兩(liang)個(ge)(ge)(ge)與(yu)內部(bu)氣(qi)(qi)室(shi)的進出(chu)氣(qi)(qi)口(kou)接連(lian)，具體的工作(zuo)原理可參照(zhao)雙作(zuo)用(yong)氣(qi)(qi)動執(zhi)行機構工作(zuo)原理在氣(qi)(qi)路（或液路）上(shang)來(lai)說(shuo)，兩(liang)位(wei)三通(tong)SMC電磁閥(fa)具有1個(ge)(ge)(ge)進氣(qi)(qi)孔(kong)(kong)（接進氣(qi)(qi)氣(qi)(qi)源）、1個(ge)(ge)(ge)出(chu)氣(qi)(qi)孔(kong)(kong)（提供給目標(biao)設備氣(qi)(qi)源）、1個(ge)(ge)(ge)排氣(qi)(qi)孔(kong)(kong)（一般安(an)裝(zhuang)一個(ge)(ge)(ge)消聲器，如(ru)果(guo)不怕噪(zao)音(yin)的話也可以不裝(zhuang)）。

 兩位五通SMC電磁閥具有1個進氣孔（接進氣氣源）、1個正動作出氣孔和1個反動作出氣孔（分別提供給目標設備的一正一反動作的氣源）、1個正動作排氣孔和1個反動作排氣孔（安裝消聲器）。 對于小型自動控制設備，氣管一般選用8~12mm的工業膠氣管。在電氣上來說，兩位三通SMC電磁閥一般為單電控（即單線圈），兩位五通SMC電磁閥一般為雙電控（即雙線圈）。線圈電壓等級一般采用DC24V、AC220V等。 兩位三通SMC電磁閥分為常閉型和常開型兩種，常閉型指線圈沒通電時氣路是斷的，常開型指線圈沒通電時氣路是通的。 常閉型兩位三通SMC電磁閥動作原理：給線圈通電，氣路接通，線圈一旦斷電，氣路就會斷開，這相當于“點動"。 常開型兩位三通單電控SMC電磁閥動作原理：給線圈通電，氣路斷開，線圈一旦斷電，氣路就會接通，這也是“點動"。 兩位五通雙電控SMC電磁閥動作原理：給正動作線圈通電，則正動作氣路接通（正動作出氣孔有氣），即使給正動作線圈斷電后正動作氣路仍然是接通的，將會一直維持到給反動作線圈通電為止。 給反動作線圈通電，則反動作氣路接通（反動作出氣孔有氣），即使給反動作線圈斷電后反動作氣路仍然是接通的，將會一直維持到給正動作線圈通電為止。這相當于“自鎖"。 基于兩位五通雙電控SMC電磁閥的(de)(de)(de)(de)(de)(de)(de)(de)這種特性，在(zai)(zai)(zai)(zai)(zai)設計(ji)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控制回(hui)路(lu)(lu)或(huo)(huo)編(bian)制PLC程(cheng)序的(de)(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)候，可(ke)以(yi)讓SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)線圈(quan)(quan)動(dong)(dong)作(zuo)1~2秒就(jiu)可(ke)以(yi)了，這樣(yang)可(ke)以(yi)保護SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)線圈(quan)(quan)不(bu)(bu)容易損壞。 SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)在(zai)(zai)(zai)(zai)(zai)液(ye)(ye)路(lu)(lu)系統(tong)中用來實現液(ye)(ye)路(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)(de)通(tong)(tong)(tong)(tong)斷或(huo)(huo)液(ye)(ye)流方(fang)向(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)改(gai)變，它一(yi)(yi)(yi)般具有一(yi)(yi)(yi)個(ge)(ge)(ge)可(ke)以(yi)在(zai)(zai)(zai)(zai)(zai)線圈(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)驅動(dong)(dong)下滑動(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)在(zai)(zai)(zai)(zai)(zai)不(bu)(bu)同(tong)(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)位(wei)(wei)(wei)置時(shi)(shi)(shi)(shi)，SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)通(tong)(tong)(tong)(tong)路(lu)(lu)也(ye)就(jiu)不(bu)(bu)同(tong)(tong)(tong)。閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)的(de)(de)(de)(de)(de)(de)(de)(de)工作(zuo)位(wei)(wei)(wei)置有幾(ji)個(ge)(ge)(ge)，該SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)就(jiu)叫幾(ji)位(wei)(wei)(wei)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)體(ti)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)接口(kou)(kou)，也(ye)就(jiu)是(shi)(shi)(shi)(shi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)通(tong)(tong)(tong)(tong)路(lu)(lu)數，有幾(ji)個(ge)(ge)(ge)通(tong)(tong)(tong)(tong)路(lu)(lu)口(kou)(kou)，該SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)就(jiu)叫幾(ji)通(tong)(tong)(tong)(tong)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。 SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)安(an)(an)裝(zhuang)后，一(yi)(yi)(yi)般所(suo)有接口(kou)(kou)都(dou)應該是(shi)(shi)(shi)(shi)連(lian)接好(hao)了的(de)(de)(de)(de)(de)(de)(de)(de)，所(suo)謂工作(zuo)位(wei)(wei)(wei)置指(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)(shi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)的(de)(de)(de)(de)(de)(de)(de)(de)位(wei)(wei)(wei)置。閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)在(zai)(zai)(zai)(zai)(zai)線圈(quan)(quan)不(bu)(bu)通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)處在(zai)(zai)(zai)(zai)(zai)甲位(wei)(wei)(wei)置，在(zai)(zai)(zai)(zai)(zai)線圈(quan)(quan)通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)處在(zai)(zai)(zai)(zai)(zai)乙位(wei)(wei)(wei)置，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)在(zai)(zai)(zai)(zai)(zai)不(bu)(bu)同(tong)(tong)(tong)位(wei)(wei)(wei)置時(shi)(shi)(shi)(shi)，對(dui)各接口(kou)(kou)起到或(huo)(huo)接通(tong)(tong)(tong)(tong)或(huo)(huo)封閉(bi)的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用。SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)二(er)(er)位(wei)(wei)(wei)是(shi)(shi)(shi)(shi)指(zhi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)(xin)(xin)有兩(liang)個(ge)(ge)(ge)不(bu)(bu)同(tong)(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)工作(zuo)位(wei)(wei)(wei)置（開(kai)、關(guan)(guan)）。 SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)二(er)(er)通(tong)(tong)(tong)(tong)、三(san)(san)通(tong)(tong)(tong)(tong)指(zhi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)體(ti)上(shang)有兩(liang)個(ge)(ge)(ge)、三(san)(san)個(ge)(ge)(ge)通(tong)(tong)(tong)(tong)道(dao)口(kou)(kou)； 比如二(er)(er)位(wei)(wei)(wei)二(er)(er)通(tong)(tong)(tong)(tong)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)(shi)(shi)(shi)一(yi)(yi)(yi)進(jin)一(yi)(yi)(yi)出(chu)(chu)（二(er)(er)個(ge)(ge)(ge)通(tong)(tong)(tong)(tong)道(dao)、zui普通(tong)(tong)(tong)(tong)常(chang)見） 二(er)(er)位(wei)(wei)(wei)三(san)(san)通(tong)(tong)(tong)(tong)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)控制液(ye)(ye)體(ti)是(shi)(shi)(shi)(shi)一(yi)(yi)(yi)進(jin)二(er)(er)出(chu)(chu)（兩(liang)出(chu)(chu)分(fen)別(bie)是(shi)(shi)(shi)(shi)一(yi)(yi)(yi)個(ge)(ge)(ge)常(chang)開(kai)一(yi)(yi)(yi)個(ge)(ge)(ge)常(chang)閉(bi)）；氣動(dong)(dong)換(huan)向(xiang)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)(shi)(shi)(shi)一(yi)(yi)(yi)進(jin)一(yi)(yi)(yi)出(chu)(chu)一(yi)(yi)(yi)排氣；液(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)一(yi)(yi)(yi)進(jin)一(yi)(yi)(yi)出(chu)(chu)一(yi)(yi)(yi)回(hui)油(you)。國內(nei)外的(de)(de)(de)(de)(de)(de)(de)(de)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)從(cong)原(yuan)(yuan)理(li)上(shang)分(fen)為(wei)三(san)(san)大(da)類(lei)（即：直動(dong)(dong)式(shi)、分(fen)步直動(dong)(dong)式(shi)、先(xian)(xian)導(dao)(dao)(dao)(dao)式(shi)），而(er)從(cong)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)結(jie)(jie)(jie)構(gou)和材(cai)料上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)同(tong)(tong)(tong)與原(yuan)(yuan)理(li)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)區別(bie)又分(fen)為(wei)六個(ge)(ge)(ge)分(fen)支(zhi)小(xiao)類(lei)（直動(dong)(dong)膜片(pian)結(jie)(jie)(jie)構(gou)、分(fen)步重片(pian)結(jie)(jie)(jie)構(gou)、先(xian)(xian)導(dao)(dao)(dao)(dao)膜式(shi)結(jie)(jie)(jie)構(gou)、直動(dong)(dong)活(huo)(huo)塞(sai)結(jie)(jie)(jie)構(gou)、分(fen)步直動(dong)(dong)活(huo)(huo)塞(sai)結(jie)(jie)(jie)構(gou)、先(xian)(xian)導(dao)(dao)(dao)(dao)活(huo)(huo)塞(sai)結(jie)(jie)(jie)構(gou)）。直動(dong)(dong)式(shi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：原(yuan)(yuan)理(li)：通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)線圈(quan)(quan)產生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)把(ba)(ba)關(guan)(guan)閉(bi)件(jian)(jian)從(cong)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座上(shang)提起，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)打開(kai)；斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)消失，彈(dan)簧把(ba)(ba)關(guan)(guan)閉(bi)件(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)在(zai)(zai)(zai)(zai)(zai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座上(shang)，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)關(guan)(guan)閉(bi)。特點：在(zai)(zai)(zai)(zai)(zai)真空、負壓(ya)(ya)(ya)(ya)(ya)、零壓(ya)(ya)(ya)(ya)(ya)時(shi)(shi)(shi)(shi)能正(zheng)常(chang)工作(zuo)，但通(tong)(tong)(tong)(tong)徑一(yi)(yi)(yi)般不(bu)(bu)超過(guo)25mm。 分(fen)布直動(dong)(dong)式(shi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：原(yuan)(yuan)理(li)：它是(shi)(shi)(shi)(shi)一(yi)(yi)(yi)種直動(dong)(dong)和先(xian)(xian)導(dao)(dao)(dao)(dao)式(shi)相結(jie)(jie)(jie)合的(de)(de)(de)(de)(de)(de)(de)(de)原(yuan)(yuan)理(li)，當(dang)入(ru)口(kou)(kou)與出(chu)(chu)口(kou)(kou)沒(mei)有壓(ya)(ya)(ya)(ya)(ya)差時(shi)(shi)(shi)(shi)，通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)直接把(ba)(ba)先(xian)(xian)導(dao)(dao)(dao)(dao)小(xiao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)關(guan)(guan)閉(bi)件(jian)(jian)依次向(xiang)上(shang)提起，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)打開(kai)。當(dang)入(ru)口(kou)(kou)與出(chu)(chu)口(kou)(kou)達到啟動(dong)(dong)壓(ya)(ya)(ya)(ya)(ya)差時(shi)(shi)(shi)(shi)，通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)先(xian)(xian)導(dao)(dao)(dao)(dao)小(xiao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)下腔壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)上(shang)升，上(shang)腔壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)下降，從(cong)而(er)利用壓(ya)(ya)(ya)(ya)(ya)差把(ba)(ba)主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)向(xiang)上(shang)推(tui)(tui)(tui)開(kai)；斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)，先(xian)(xian)導(dao)(dao)(dao)(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)利用彈(dan)簧力(li)(li)(li)或(huo)(huo)介質壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)推(tui)(tui)(tui)動(dong)(dong)關(guan)(guan)閉(bi)件(jian)(jian)，向(xiang)下移動(dong)(dong)，使閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)關(guan)(guan)閉(bi)。特點：在(zai)(zai)(zai)(zai)(zai)零壓(ya)(ya)(ya)(ya)(ya)差或(huo)(huo)真空、高壓(ya)(ya)(ya)(ya)(ya)時(shi)(shi)(shi)(shi)亦(yi)能可(ke)*動(dong)(dong)作(zuo)，但功率較大(da)，要(yao)求必須(xu)水(shui)平安(an)(an)裝(zhuang)。先(xian)(xian)導(dao)(dao)(dao)(dao)式(shi)SMC電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：原(yuan)(yuan)理(li)：通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)把(ba)(ba)先(xian)(xian)導(dao)(dao)(dao)(dao)孔(kong)(kong)打開(kai)，上(shang)腔室壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)迅速下降，在(zai)(zai)(zai)(zai)(zai)關(guan)(guan)閉(bi)件(jian)(jian)周(zhou)圍形成(cheng)上(shang)低下高的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)差，流體(ti)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)推(tui)(tui)(tui)動(dong)(dong)關(guan)(guan)閉(bi)件(jian)(jian)向(xiang)上(shang)移動(dong)(dong)，閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)打開(kai)；斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)(shi)(shi)，彈(dan)簧力(li)(li)(li)把(ba)(ba)先(xian)(xian)導(dao)(dao)(dao)(dao)孔(kong)(kong)關(guan)(guan)閉(bi)，入(ru)口(kou)(kou)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)通(tong)(tong)(tong)(tong)過(guo)旁通(tong)(tong)(tong)(tong)孔(kong)(kong)迅速腔室在(zai)(zai)(zai)(zai)(zai)關(guan)(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)件(jian)(jian)周(zhou)圍形成(cheng)下低上(shang)高的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)差，流體(ti)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)推(tui)(tui)(tui)動(dong)(dong)關(guan)(guan)閉(bi)件(jian)(jian)向(xiang)下移動(dong)(dong)，關(guan)(guan)閉(bi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)。