電(dian)動截止(zhi)閥(fa)(fa)(fa)(fa)開啟(qi)時(shi)，閥(fa)(fa)(fa)(fa)瓣的(de)(de)開啟(qi)高(gao)度，為公稱(cheng)直徑的(de)(de)25%～30%時(shi)，流量已達到(dao)大(da)，表(biao)示閥(fa)(fa)(fa)(fa)門(men)已達全(quan)(quan)開位置(zhi)。所(suo)以截止(zhi)閥(fa)(fa)(fa)(fa)的(de)(de)全(quan)(quan)開位置(zhi)，應(ying)由閥(fa)(fa)(fa)(fa)瓣的(de)(de)行(xing)(xing)(xing)(xing)程(cheng)來決定。閥(fa)(fa)(fa)(fa)桿經調質及表(biao)面氮化處理,有良好的(de)(de)抗腐蝕性和抗擦傷性。可(ke)采用各(ge)(ge)種配(pei)管法蘭標準及法蘭密(mi)封(feng)(feng)(feng)面型(xing)式(shi),滿足各(ge)(ge)種工(gong)(gong)(gong)(gong)程(cheng)需要(yao)和用戶(hu)(hu)要(yao)求(qiu)。閥(fa)(fa)(fa)(fa)體(ti)材料品種齊全(quan)(quan),填(tian)料、墊片可(ke)根據實際工(gong)(gong)(gong)(gong)況(kuang)或用戶(hu)(hu)要(yao)求(qiu)合(he)理選配(pei),能適(shi)(shi)用與各(ge)(ge)種壓(ya)力、溫度及介質工(gong)(gong)(gong)(gong)況(kuang)。倒密(mi)封(feng)(feng)(feng)采用螺紋連接密(mi)封(feng)(feng)(feng)座(zuo)或本體(ti)堆(dui)焊奧氏體(ti)不(bu)銹(xiu)鋼(gang)而(er)成,密(mi)封(feng)(feng)(feng)可(ke)靠(kao),填(tian)料更(geng)換(huan)可(ke)在不(bu)停機(ji)情況(kuang)下進(jin)行(xing)(xing)(xing)(xing)方便快捷(jie)不(bu)影響(xiang)系統(tong)(tong)運(yun)行(xing)(xing)(xing)(xing),電(dian)動截止(zhi)閥(fa)(fa)(fa)(fa)倒密(mi)封(feng)(feng)(feng)采用螺紋連接密(mi)封(feng)(feng)(feng)座(zuo)或本體(ti)堆(dui)焊奧氏體(ti)不(bu)銹(xiu)鋼(gang)而(er)成，密(mi)封(feng)(feng)(feng)可(ke)靠(kao)，更(geng)換(huan)填(tian)料可(ke)在不(bu)停機(ji)情況(kuang)下進(jin)行(xing)(xing)(xing)(xing)，方便快捷(jie)，不(bu)影響(xiang)系統(tong)(tong)運(yun)行(xing)(xing)(xing)(xing)。 配(pei)有多回(hui)轉式(shi)電(dian)動裝置(zhi)，具有殼體(ti)小(xiao)，重量輕，功(gong)能全(quan)(quan)，并可(ke)與遠程(cheng)電(dian)腦配(pei)套使(shi)用，也可(ke)按用戶(hu)(hu)要(yao)求(qiu)選配(pei)電(dian)動裝置(zhi)。電(dian)動截止(zhi)閥(fa)(fa)(fa)(fa)適(shi)(shi)用于(yu)公稱(cheng)壓(ya)力PN1．6～16MPa，工(gong)(gong)(gong)(gong)作(zuo)溫度-29～550℃的(de)(de)石油、化工(gong)(gong)(gong)(gong)、制藥、化肥(fei)、電(dian)力行(xing)(xing)(xing)(xing)業等各(ge)(ge)種工(gong)(gong)(gong)(gong)況(kuang)的(de)(de)管路上，切斷或接通管路介質。