氣(qi)動(dong)閥(fa)門(men)是(shi)使(shi)用(yong)最(zui)廣(guang)泛(fan)的(de)工(gong)業(ye)控(kong)製(zhi)儀(yi)表(biao)之(zhi)一(yi),主(zhu)要(yao)由(you)氣(qi)動(dong)執(zhi)行(xing)機(ji)構(gou)和(he)各(ge)個(ge)型(xing)號(hao)的(de)普(pu)通(tong)閥(fa)門(men)組(zu)成(cheng)。與(yu)電(dian)動(dong)閥(fa)門(men)的(de)區(qu)別(bie)就(jiu)是(shi)執(zhi)行(xing)機(ji)構(gou)的(de)不(bu)同(tong),雖(sui)然(ran)在(zai)使(shi)用(yong)時(shi)相(xiang)對(dui)沒(mei)有(you)電(dian)動(dong)閥(fa)門(men)方(fang)便(bian),但(dan)是(shi)在(zai)很(hen)多(duo)場(chang)合(he)比(bi)電(dian)動(dong)閥(fa)門(men)更(geng)加(jia)適(shi)用(yong)。而(er)且(qie)在(zai)價(jia)格(ge)方(fang)麵(mian)也(ye)比(bi)電(dian)動(dong)閥(fa)門(men)便(bian)宜(yi)。哪(na)些(xie)工(gong)況(kuang)應(ying)選(xuan)氣(qi)動(dong)閥(fa)門(men)呢(ne)?
和(he)電(dian)動(dong)閥(fa)門(men)比(bi),氣(qi)動(dong)閥(fa)門(men)更(geng)適(shi)用(yong)於(yu)防(fang)爆(bao)的(de)場(chang)合(he)。主(zhu)要(yao)原(yuan)因(yin)是(shi)氣(qi)動(dong)閥(fa)門(men)驅(qu)動(dong)源(yuan)為(wei)氣(qi)源(yuan),氣(qi)動(dong)執(zhi)行(xing)機(ji)構(gou)裏(li)麵(mian)沒(mei)有(you)電(dian)子(zi)原(yuan)件(jian),用(yong)在(zai)易(yi)燃(ran)易(yi)爆(bao)的(de)場(chang)合(he)時(shi),就(jiu)算(suan)發(fa)生(sheng)故(gu)障(zhang)也(ye)不(bu)會(hui)像(xiang)電(dian)動(dong)閥(fa)門(men)一(yi)樣(yang)容(rong)易(yi)產(chan)生(sheng)火(huo)花(hua)而(er)帶(dai)來(lai)安(an)全(quan)隱(yin)患(huan)。雖(sui)然(ran)根(gen)據(ju)這(zhe)些(xie)工(gong)況(kuang)也(ye)生(sheng)產(chan)出(chu)了(le)防(fang)爆(bao)電(dian)動(dong)閥(fa)門(men),但(dan)是(shi)從(cong)價(jia)格(ge)及(ji)性(xing)能(neng)來(lai)看(kan),如(ru)果(guo)工(gong)況(kuang)現(xian)場(chang)有(you)氣(qi)源(yuan)還(hai)是(shi)應(ying)該(gai)選(xuan)擇(ze)氣(qi)動(dong)球(qiu)閥(fa)、氣動蝶閥等氣動閥門來使用。
在輸送有毒危險介質的工況一般也應該選擇耐腐蝕氣動閥門,yinweiqidongfamenjuyouguzhangfuweigongneng,yonghuzaidinghuoshishuominggongkuangxuanzekaiguanxingqidongfamen,zaifashengguzhanghuozheqiyuanduandiaodeshihou,qidongfamenkeyigenjuyonghuxuyaozidonghuifuquanguanhuozhequankaidezhuangtai。laibaohugongkuangdeanquan。zhedianshiyibandiandongfamensuobujubeide。
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