SMC電磁閥在介質方面有些什么重要的要求，SMC電磁閥

SMC電磁閥在介質方面有些什么重要的要求，SMC電磁閥
SMC電磁閥在控制閥芯的轉動或移動。這都要解決長期動作閥桿動密封的外泄漏難題；唯有電磁閥是用電磁力作用于密封在電動調節閥隔磁套管內的鐵芯完成，不存在動密封，所以外漏易堵。
電動閥力矩控制不易，容易產生內漏，甚拉斷閥桿頭部；電磁閥的結構型式容易控制內泄漏，直降為零。所以，電磁閥使用特別安全，尤其適用于腐蝕性、有毒或高低溫的介質。
SMC電磁閥系統簡單，便接電腦，價格低謙。電磁閥本身結構簡單，價格也低，比起調節閥等其它種類執行器易于安裝維護。更顯著的是所組成的自控系統簡單得多，價格要低得多。
SMC電磁閥是開關信號控制，與工控計算機連接十分方便。在當今電腦普及，價格大幅下降的時代，電磁閥的優勢就更加明顯。SMC電磁閥動作快遞，功率微小，外形輕巧。
SMC電磁閥響應(ying)時間可(ke)以短幾個(ge)毫(hao)(hao)秒，即使是導式電磁閥也可(ke)以控制在幾十毫(hao)(hao)秒內。由于自(zi)成回路，比之(zhi)其(qi)它自(zi)控閥反(fan)應(ying)更靈(ling)敏(min)。

SMC電磁閥在介質方面有些什么重要的要求，SMC電磁閥
SMC電磁閥由導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)著形成(cheng)通(tong)道(dao)組合而成(cheng);常(chang)閉(bi)型 在(zai)(zai)未通(tong)電(dian)(dian)(dian)(dian)(dian)時(shi)(shi),呈關(guan)閉(bi)狀態(tai).當線(xian)圈通(tong)電(dian)(dian)(dian)(dian)(dian)時(shi)(shi),產(chan)生(sheng)(sheng)的(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)(li)(li)使動(dong)(dong)(dong)鐵(tie)芯(xin)和(he) 靜鐵(tie)芯(xin)吸合,導(dao)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)打開(kai)(kai)(kai),介質(zhi)流(liu)(liu)向出口(kou)(kou)(kou),此(ci)時(shi)(shi)主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)上(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)減(jian) 少,低于(yu)進口(kou)(kou)(kou)側的(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li),形成(cheng)壓(ya)(ya)(ya)(ya)差(cha)(cha)克服彈(dan)簧阻力(li)(li)(li)(li)(li)而隨之向上(shang)(shang)運動(dong)(dong)(dong), 達(da)到開(kai)(kai)(kai)啟(qi)主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)的(de)(de)目的(de)(de),介質(zhi)流(liu)(liu)通(tong).當線(xian)圈斷(duan)電(dian)(dian)(dian)(dian)(dian)時(shi)(shi),磁(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)(li)(li)消(xiao)失,動(dong)(dong)(dong) 鐵(tie)芯(xin)在(zai)(zai)彈(dan)簧力(li)(li)(li)(li)(li)作(zuo)用(yong)下(xia)復(fu)位關(guan)閉(bi)導(dao)口(kou)(kou)(kou),此(ci)時(shi)(shi)介質(zhi)從平衡孔流(liu)(liu)入,主 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)上(shang)(shang)腔(qiang)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)增大(da)(da),并在(zai)(zai)彈(dan)簧力(li)(li)(li)(li)(li)的(de)(de)作(zuo)用(yong)下(xia)向下(xia)運動(dong)(dong)(dong),關(guan)閉(bi)主閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou). 常(chang)開(kai)(kai)(kai)式(shi)原(yuan)理正(zheng)好相反.如(ru):SLA,DF（φ15 以(yi)上(shang)(shang)口(kou)(kou)(kou)徑(jing)(jing)）,ZCZ 等. （圖三是典型結構圖） 電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)選(xuan)(xuan)(xuan)型 :適用(yong)性(xing)管(guan)路(lu)中的(de)(de)流(liu)(liu)體(ti)(ti)必須(xu)和(he)選(xuan)(xuan)(xuan)用(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)系(xi)列(lie)型號中標(biao)(biao)定的(de)(de)介質(zhi)致. 流(liu)(liu)體(ti)(ti)的(de)(de)溫度(du)必須(xu)小(xiao)于(yu)選(xuan)(xuan)(xuan)用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)標(biao)(biao)定溫度(du). 電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)允許(xu)液體(ti)(ti)粘(zhan)度(du)般(ban)(ban)在(zai)(zai) 20CST 以(yi)下(xia),大(da)(da)于(yu) 20CST 應(ying)(ying)注(zhu)(zhu)明. 工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha)(cha),管(guan)路(lu)zui高(gao)(gao)壓(ya)(ya)(ya)(ya)差(cha)(cha)在(zai)(zai)小(xiao)于(yu) 0.04MPa 時(shi)(shi)應(ying)(ying)選(xuan)(xuan)(xuan)用(yong)如(ru) ZS,2W,ZQDF,ZCM 系(xi)列(lie)等直(zhi)動(dong)(dong)(dong)式(shi)和(he)分步(bu)直(zhi)動(dong)(dong)(dong)式(shi); zui低工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha)(cha)大(da)(da)于(yu) 0.04MPa 時(shi)(shi) 可(ke)選(xuan)(xuan)(xuan)用(yong)導(dao)式(shi)（壓(ya)(ya)(ya)(ya)差(cha)(cha)式(shi)）電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa);zui高(gao)(gao)工(gong)作(zuo)壓(ya)(ya)(ya)(ya)差(cha)(cha)應(ying)(ying) 小(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)zui大(da)(da)標(biao)(biao)定壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li);般(ban)(ban)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)都是單向工(gong)作(zuo),因此(ci)要(yao)(yao)(yao)注(zhu)(zhu) 意(yi)是否有反壓(ya)(ya)(ya)(ya)差(cha)(cha),如(ru)有安(an)(an)裝(zhuang)止回(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa). 流(liu)(liu)體(ti)(ti)清潔度(du)不高(gao)(gao)時(shi)(shi)應(ying)(ying)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)前安(an)(an)裝(zhuang)過(guo)濾器,般(ban)(ban)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)對介質(zhi)要(yao)(yao)(yao)求清潔度(du)要(yao)(yao)(yao)好. 注(zhu)(zhu)意(yi)流(liu)(liu)量孔徑(jing)(jing)和(he)接管(guan)口(kou)(kou)(kou)徑(jing)(jing);電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)般(ban)(ban)只有開(kai)(kai)(kai)關(guan)兩(liang)位控制;條(tiao)件允 許(xu)請安(an)(an)裝(zhuang)旁路(lu)管(guan),便于(yu)維修;有水(shui)錘現象時(shi)(shi)要(yao)(yao)(yao)定制電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)開(kai)(kai)(kai)閉(bi)時(shi)(shi) 間調節. 注(zhu)(zhu)意(yi)環境(jing)溫度(du)對電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)影響 電(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)和(he)消(xiao)耗功率應(ying)(ying)根(gen)據輸出容量選(xuan)(xuan)(xuan)取(qu),電(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)般(ban)(ban)允許(xu) ±10%左右,必須(xu)注(zhu)(zhu)意(yi)交(jiao)流(liu)(liu)起動(dong)(dong)(dong)時(shi)(shi) VA 值較高(gao)(gao). 二,可(ke)靠性(xing) 電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)分為常(chang)閉(bi)和(he)常(chang)開(kai)(kai)(kai)二種;般(ban)(ban)選(xuan)(xuan)(xuan)用(yong)常(chang)閉(bi)型,通(tong)電(dian)(dian)(dian)(dian)(dian)打開(kai)(kai)(kai),斷(duan)電(dian)(dian)(dian)(dian)(dian)關(guan) 閉(bi);但在(zai)(zai)開(kai)(kai)(kai)啟(qi)時(shi)(shi)間很(hen)長關(guan)閉(bi)時(shi)(shi)很(hen)短(duan)時(shi)(shi)要(yao)(yao)(yao)選(xuan)(xuan)(xuan)用(yong)常(chang)開(kai)(kai)(kai)型了. 壽命(ming)試驗,工(gong)廠般(ban)(ban)屬于(yu)型式(shi)試驗項目,確切地說我國還(huan)沒有電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)標(biao)(biao)準(zhun),因此(ci)選(xuan)(xuan)(xuan)用(yong)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)時(shi)(shi)慎重. 動(dong)(dong)(dong)作(zuo)時(shi)(shi)間很(hen)短(duan)頻率較高(gao)(gao)時(shi)(shi)般(ban)(ban)選(xuan)(xuan)(xuan)取(qu)直(zhi)動(dong)(dong)(dong)式(shi),大(da)(da)口(kou)(kou)(kou)徑(jing)(jing)選(xuan)(xuan)(xuan)用(yong)快速系(xi)列(lie). 三,安(an)(an)全性(xing) 般(ban)(ban)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)不防(fang)水(shui), 在(zai)(zai)條(tiao)件不允許(xu)時(shi)(shi)請選(xuan)(xuan)(xuan)用(yong)防(fang)水(shui)型, 工(gong)廠可(ke)以(yi)定做. 電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)zui高(gao)(gao)標(biao)(biao)定公稱壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li)定要(yao)(yao)(yao)超(chao)過(guo)管(guan)路(lu)內的(de)(de)zui高(gao)(gao)壓(ya)(ya)(ya)(ya)力(li)(li)(li)(li)(li),否則使 用(yong)壽命(ming)會縮(suo)短(duan)或(huo)產(chan)生(sheng)(sheng)其它意(yi)外情況. 有腐蝕性(xing)液體(ti)(ti)的(de)(de)應(ying)(ying)選(xuan)(xuan)(xuan)用(yong)全不銹鋼型,強腐蝕性(xing)流(liu)(liu)體(ti)(ti)宜選(xuan)(xuan)(xuan)用(yong)塑料王 （SLF）電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa). 爆炸性(xing)環境(jing)必須(xu)選(xuan)(xuan)(xuan)用(yong)相應(ying)(ying)的(de)(de)防(fang)爆產(chan)品(pin)(pin). 四,經濟性(xing) 有很(hen)多電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)以(yi)通(tong)用(yong),但在(zai)(zai)能滿足以(yi)上(shang)(shang)三點(dian)的(de)(de)基礎上(shang)(shang)應(ying)(ying)選(xuan)(xuan)(xuan)用(yong)zui經 濟的(de)(de)產(chan)品(pin)(pin)

SMC電磁閥在介質方面有些什么重要的要求，SMC電磁閥