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氣(qi)動(dong)(dong)角(jiao)座(zuo)閥(fa)廠家當工(gong)(gong)(gong)作介(jie)質(zhi)為(wei)蒸(zheng)汽或氣(qi)體(ti)時(shi),選擇該流動(dong)(dong)方向時(shi),可(ke)提(ti)高該產(chan)品的(de)流動(dong)(dong)密(mi)封性能,但由(you)于閥(fa)體(ti)中V性密(mi)封圈長時(shi)間接觸工(gong)(gong)(gong)作介(jie)質(zhi),從而對(dui)產(chan)品使(shi)用壽命(ming)有一定影響,另外,工(gong)(gong)(gong)作介(jie)質(zhi)為(wei)液體(ti)時(shi)不防(fang)水(shui)錘沖擊(ji)。