4-72型離(li)(li)心式通風(feng)(feng)(feng)機(ji)(ji)可輸送(song)(song)空氣(qi)(qi)和其(qi)(qi)他不(bu)(bu)自燃(ran)的(de)、對(dui)(dui)人體(ti)無害的(de)、對(dui)(dui)鋼(gang)(gang)材無腐蝕(shi)性(xing)(xing)的(de)氣(qi)(qi)體(ti)。氣(qi)(qi)體(ti)內不(bu)(bu)允許有粘(zhan)性(xing)(xing)物(wu)質，所含塵土(tu)及硬質顆粒物(wu)不(bu)(bu)大于150mg/立(li)方。氣(qi)(qi)體(ti)溫度不(bu)(bu)得超過80°C。該風(feng)(feng)(feng)機(ji)(ji)具有良好(hao)的(de)氣(qi)(qi)動性(xing)(xing)能、運轉平(ping)衡、振動小(xiao)、效率高、壽命(ming)長等(deng)(deng)特點(dian)。廣泛適用(yong)于工礦企業(ye)、大型建筑物(wu)、賓館(guan)酒(jiu)樓(lou)等(deng)(deng)室內通氣(qi)(qi)換氣(qi)(qi)。B4-72型防(fang)爆型離(li)(li)心式通風(feng)(feng)(feng)機(ji)(ji)、主(zhu)要(yao)有鋁葉輪(lun)(lun)、機(ji)(ji)殼、進風(feng)(feng)(feng)口(kou)等(deng)(deng)部(bu)分(fen)與防(fang)暴電(dian)機(ji)(ji)組成(cheng)(cheng)、可作為易燃(ran)揮發性(xing)(xing)氣(qi)(qi)體(ti)的(de)通風(feng)(feng)(feng)換氣(qi)(qi)只(zhi)用(yong)、其(qi)(qi)性(xing)(xing)能和安裝(zhuang)尺寸同于4-72型。F4-72型為防(fang)腐型離(li)(li)心式通風(feng)(feng)(feng)機(ji)(ji)，主(zhu)要(yao)用(yong)不(bu)(bu)銹鋼(gang)(gang)（或玻(bo)璃鋼(gang)(gang)）材質制成(cheng)(cheng)的(de)葉輪(lun)(lun)、機(ji)(ji)殼、進風(feng)(feng)(feng)口(kou)等(deng)(deng)部(bu)分(fen)與電(dian)機(ji)(ji)組成(cheng)(cheng)，可用(yong)于輸送(song)(song)腐蝕(shi)性(xing)(xing)氣(qi)(qi)體(ti)，其(qi)(qi)性(xing)(xing)能與安裝(zhuang)尺寸同于4-72型。