氣動閥門是依靠壓縮空氣來驅動的閥門，主要由氣動執行機構配用各種型號的閥門組成。氣動閥門的型號很多，氣動調節閥、氣動球閥、qidongdiefadengdongliyuanweiqiyuanqudongdefamendoukeyibeichengweiqidongfamen。peiyongbutongdefujian，qidongfamenyoutiaojiexinghekaiguanxingliangzhongxingshi。qidongkaiguanxingfamenshiyikaodiancifaqiehuanqiyuan，laishixianfamendeqibi。zhuyaoyongzaigongkuangzhongzuojieduanhuojietongguandaojiezhiyong
，qidongtiaojiefaxingfamenxuyaopeiyongdingweiqi
，jieshoukongzhixitongfasongde4-20mA或1-5V等模擬信號，控製閥門的開度大小，用於要求調節管道介質參數的工況。並且可會根據用戶工況的需要選擇氣開型或氣關型。

        氣(qi)動(dong)閥(fa)門(men)的(de)使(shi)用(yong)要(yao)求(qiu)工(gong)況(kuang)現(xian)場(chang)要(yao)有(you)氣(qi)源(yuan)，並(bing)且(qie)要(yao)配(pei)用(yong)多(duo)種(zhong)附(fu)件(jian)。不(bu)像(xiang)電(dian)動(dong)閥(fa)門(men)連(lian)接(jie)電(dian)源(yuan)就(jiu)可(ke)以(yi)使(shi)用(yong)。雖(sui)然(ran)沒(mei)有(you)電(dian)動(dong)閥(fa)門(men)使(shi)用(yong)方(fang)便(bian)，但(dan)是(shi)在(zai)很(hen)多(duo)工(gong)況(kuang)依(yi)然(ran)是(shi)不(bu)可(ke)替(ti)代(dai)的(de)。也(ye)正(zheng)是(shi)因(yin)為(wei)氣(qi)動(dong)閥(fa)門(men)是(shi)氣(qi)源(yuan)驅(qu)動(dong)，所(suo)以(yi)氣(qi)動(dong)執(zhi)行(xing)機(ji)構(gou)的(de)組(zu)成(cheng)沒(mei)有(you)電(dian)子(zi)原(yuan)件(jian)。在(zai)輸(shu)送(song)一(yi)些(xie)珍(zhen)惜(xi)介(jie)質(zhi)或(huo)危(wei)險(xian)介(jie)質(zhi)的(de)時(shi)候(hou)，大(da)多(duo)也(ye)選(xuan)擇(ze)氣(qi)動(dong)閥(fa)門(men)，因(yin)為(wei)氣(qi)動(dong)閥(fa)門(men)有(you)自(zi)動(dong)複(fu)位(wei)功(gong)能(neng)。即(ji)在(zai)斷(duan)氣(qi)的(de)情(qing)況(kuang)下(xia)可(ke)根(gen)據(ju)工(gong)況(kuang)需(xu)要(yao)自(zi)動(dong)回(hui)複(fu)至(zhi)全(quan)開(kai)或(huo)全(quan)閉(bi)的(de)狀(zhuang)態(tai)。避(bi)免(mian)了(le)因(yin)為(wei)斷(duan)氣(qi)閥(fa)門(men)不(bu)動(dong)作(zuo)而(er)造(zao)成(cheng)損(sun)失(shi)或(huo)危(wei)險(xian)。

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