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RELATED ARTICLES電(dian)動(dong)硬(ying)密(mi)封(feng)截(jie)止(zhi)閥(fa):電(dian)動(dong)法蘭截(jie)止(zhi)閥(fa)和(he)電(dian)動(dong)閘(zha)閥(fa)是(shi)同(tong)屬壹個類(lei)型(xing)的閥門(men),是由電(dian)動(dong)執(zhi)行(xing)機(ji)構(gou)和(he)截(jie)止(zhi)閥(fa)兩部分(fen)組(zu)成,電(dian)動(dong)法蘭截(jie)止(zhi)閥(fa)的啟(qi)閉件(jian)是(shi)塞(sai)形(xing)的閥瓣,密(mi)封(feng)面(mian)呈平(ping)面(mian)或(huo)錐面(mian),閥瓣沿流(liu)體(ti)的中(zhong)心(xin)線(xian)作直(zhi)線(xian)運動。閥(fa)桿(gan)的運動形(xing)式(shi),有升降桿式(shi)(閥(fa)桿(gan)升降(jiang),手輪不(bu)升降(jiang)),也有升降旋(xuan)轉(zhuan)桿(gan)式(shi)(手輪與閥(fa)桿(gan)壹起(qi)旋(xuan)轉(zhuan)升(sheng)降(jiang),螺母設在(zai)閥體(ti)上(shang))。電(dian)動(dong)法蘭截(jie)止(zhi)閥(fa)只(zhi)適(shi)用(yong)於全(quan)開和全(quan)關,不(bu)允許作調節和節(jie)流(liu)。

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