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特點：
本蝶閥采用的是三維(wei)偏心原理(li)設計，使密(mi)(mi)封(feng)(feng)面(mian)的空間(jian)運動(dong)軌跡達(da)到(dao)理(li)想化，密(mi)(mi)封(feng)(feng)面(mian)相互之間(jian)無(wu)磨擦(ca)、無(wu)干(gan)涉(she)，加(jia)之密(mi)(mi)封(feng)(feng)材(cai)料選擇得(de)當，從而使蝶閥的密(mi)(mi)封(feng)(feng)性、耐(nai)(nai)腐蝕(shi)性、耐(nai)(nai)高(gao)溫性和耐(nai)(nai)磨性等得(de)到(dao)了可(ke)靠的保證。其主要特點如下：1、操作力矩小(xiao)，操作方便，省力靈巧；2、三維(wei)偏心結構(gou)，使蝶板越(yue)關越(yue)緊，其密(mi)(mi)封(feng)(feng)性能可(ke)靠，達(da)到(dao)零泄漏；3、耐(nai)(nai)高(gao)壓、耐(nai)(nai)腐蝕(shi)、耐(nai)(nai)磨損、使用壽(shou)命長等。

蝶(die)(die)(die)閥用(yong)(yong)(yong)途：蝶(die)(die)(die)閥是指關閉(bi)件為(wei)圓盤，圍繞閥軸旋(xuan)轉(zhuan)(zhuan)來(lai)達到開啟與關閉(bi)的(de)(de)一(yi)種閥，在管(guan)道上(shang)主(zhu)要(yao)起切斷和節流作(zuo)用(yong)(yong)(yong)。蝶(die)(die)(die)閥啟閉(bi)件是一(yi)個圓盤形的(de)(de)蝶(die)(die)(die)板(ban)(ban)，在閥體內繞其(qi)自身(shen)的(de)(de)軸線旋(xuan)轉(zhuan)(zhuan)，從(cong)而達到啟閉(bi)或調(diao)節的(de)(de)目的(de)(de)。蝶(die)(die)(die)閥全開到全關通(tong)常是小(xiao)于(yu)90° ，蝶(die)(die)(die)閥和蝶(die)(die)(die)桿(gan)本身(shen)沒有自鎖(suo)能(neng)力，為(wei)了蝶(die)(die)(die)板(ban)(ban)的(de)(de)定位，要(yao)在閥桿(gan)上(shang)加裝蝸輪減速器。采(cai)用(yong)(yong)(yong)蝸輪減速器，不僅可(ke)以使蝶(die)(die)(die)板(ban)(ban)具有自鎖(suo)能(neng)力，使蝶(die)(die)(die)板(ban)(ban)停止在任意位置上(shang)，還能(neng)改善閥門(men)的(de)(de)操作(zuo)性能(neng)。工(gong)業(ye)專(zhuan)用(yong)(yong)(yong)蝶(die)(die)(die)閥的(de)(de)特點能(neng)耐高溫，適用(yong)(yong)(yong)壓力范(fan)圍也較高，閥門(men)公(gong)稱通(tong)徑大，閥體采(cai)用(yong)(yong)(yong)碳(tan)鋼制(zhi)造，閥板(ban)(ban)的(de)(de)密封圈采(cai)用(yong)(yong)(yong)金屬(shu)環代替橡膠環。大型高溫蝶(die)(die)(die)閥采(cai)用(yong)(yong)(yong)鋼板(ban)(ban)焊接制(zhi)造，主(zhu)要(yao)用(yong)(yong)(yong)于(yu)高溫介質的(de)(de)煙風(feng)道和煤氣(qi)管(guan)道。

蝶(die)(die)閥(fa)(fa)(fa)選用規則：閥(fa)(fa)(fa)桿(gan)(gan)(gan)直徑：對(dui)多回(hui)轉類明(ming)桿(gan)(gan)(gan)閥(fa)(fa)(fa)門(men)(men)(men)(men)。便不能(neng)組(zu)裝(zhuang)(zhuang)(zhuang)成電動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)門(men)(men)(men)(men)。因此，如(ru)果電動(dong)(dong)(dong)(dong)(dong)(dong)蝶(die)(die)閥(fa)(fa)(fa)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)允許通(tong)(tong)過的(de)(de)(de)最大閥(fa)(fa)(fa)桿(gan)(gan)(gan)直徑不能(neng)通(tong)(tong)過所(suo)配(pei)閥(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)閥(fa)(fa)(fa)桿(gan)(gan)(gan)。電動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)空心輸出(chu)軸的(de)(de)(de)內徑必需(xu)大于(yu)明(ming)桿(gan)(gan)(gan)閥(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)閥(fa)(fa)(fa)桿(gan)(gan)(gan)外(wai)徑。對(dui)局部回(hui)轉閥(fa)(fa)(fa)門(men)(men)(men)(men)以(yi)及多回(hui)轉閥(fa)(fa)(fa)門(men)(men)(men)(men)中的(de)(de)(de)暗桿(gan)(gan)(gan)閥(fa)(fa)(fa)門(men)(men)(men)(men)，雖不用考(kao)慮(lv)閥(fa)(fa)(fa)桿(gan)(gan)(gan)直徑的(de)(de)(de)通(tong)(tong)過問題，但在選配(pei)時亦應充沛(pei)考(kao)慮(lv)閥(fa)(fa)(fa)桿(gan)(gan)(gan)直徑與鍵槽的(de)(de)(de)尺寸，使組(zu)裝(zhuang)(zhuang)(zhuang)后能(neng)正(zheng)常工(gong)作(zuo)(zuo)。操作(zuo)(zuo)力矩：操作(zuo)(zuo)力矩是(shi)選擇(ze)閥(fa)(fa)(fa)門(men)(men)(men)(men)電動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)的(de)(de)(de)最主(zhu)要(yao)參數。電動(dong)(dong)(dong)(dong)(dong)(dong)蝶(die)(die)閥(fa)(fa)(fa)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)過程(cheng)可由(you)行程(cheng)、轉矩或軸向(xiang)推(tui)力的(de)(de)(de)大小來控(kong)制。由(you)于(yu)閥(fa)(fa)(fa)門(men)(men)(men)(men)電動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)的(de)(de)(de)工(gong)作(zuo)(zuo)特性和利用率(lv)取決于(yu)閥(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)種類、裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)工(gong)作(zuo)(zuo)規范及閥(fa)(fa)(fa)門(men)(men)(men)(men)在管線或設(she)備上(shang)的(de)(de)(de)位置(zhi)(zhi)， 閥(fa)(fa)(fa)門(men)(men)(men)(men)電動(dong)(dong)(dong)(dong)(dong)(dong)蝶(die)(die)閥(fa)(fa)(fa)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)是(shi)實現閥(fa)(fa)(fa)門(men)(men)(men)(men)程(cheng)控(kong)、自(zi)控(kong)和遙控(kong)不可缺少的(de)(de)(de)設(she)備。因此，正(zheng)確選擇(ze)閥(fa)(fa)(fa)門(men)(men)(men)(men)電動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，對(dui)防止(zhi)出(chu)現超負(fu)荷(he)現象(工(gong)作(zuo)(zuo)轉矩高(gao)于(yu)控(kong)制轉矩)至關重(zhong)要(yao)。通(tong)(tong)常，正(zheng)確選擇(ze)閥(fa)(fa)(fa)門(men)(men)(men)(men)電動(dong)(dong)(dong)(dong)(dong)(dong)蝶(die)(die)閥(fa)(fa)(fa)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)的(de)(de)(de)依據。