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黃(huang)銅(tong)截(jie)止(zhi)閥(fa)(fa)(fa)的(de)(de)啟(qi)(qi)閉件是塞(sai)形的(de)(de)閥(fa)(fa)(fa)瓣,密封(feng)面(mian)(mian)呈(cheng)平(ping)面(mian)(mian)或錐面(mian)(mian),閥(fa)(fa)(fa)瓣沿流體的(de)(de)中心線作直線運動。閥(fa)(fa)(fa)桿(gan)的(de)(de)運動形式,有(you)(you)(you)升(sheng)(sheng)(sheng)降(jiang)桿(gan)式(閥(fa)(fa)(fa)桿(gan)升(sheng)(sheng)(sheng)降(jiang),手輪(lun)不升(sheng)(sheng)(sheng)降(jiang)),也有(you)(you)(you)升(sheng)(sheng)(sheng)降(jiang)旋(xuan)轉桿(gan)式(手輪(lun)與閥(fa)(fa)(fa)桿(gan)一起(qi)旋(xuan)轉升(sheng)(sheng)(sheng)降(jiang),螺(luo)母(mu)設在(zai)閥(fa)(fa)(fa)體上)。黃(huang)銅(tong)截(jie)止(zhi)閥(fa)(fa)(fa)主體材料有(you)(you)(you)錫青(qing)銅(tong)C83600,鋁青(qing)銅(tong)C95800和(he)鎳(nie)鋁青(qing)銅(tong)C95500等,填(tian)料及閥(fa)(fa)(fa)座密封(feng)采(cai)用(yong)(yong)聚四氟(fu)乙(yi)烯和(he)氟(fu)橡(xiang)膠,內螺(luo)紋制造(zao)標準有(you)(you)(you)G螺(luo)紋、BSP螺(luo)紋和(he)NPT螺(luo)紋。適(shi)(shi)用(yong)(yong)介(jie)質:適(shi)(shi)用(yong)(yong)于(yu)淡水、海水、燃油(you)和(he)t≤120℃的(de)(de)蒸汽。全(quan)銅(tong)法蘭截(jie)止(zhi)閥(fa)(fa)(fa)是利用(yong)(yong)閥(fa)(fa)(fa)瓣控制啟(qi)(qi)閉的(de)(de)閥(fa)(fa)(fa)門,是使(shi)用(yong)(yong)廣泛的(de)(de)一種青(qing)銅(tong)閥(fa)(fa)(fa)門之(zhi)一,銅(tong)截(jie)止(zhi)閥(fa)(fa)(fa)擁有(you)(you)(you)開閉過(guo)程中密封(feng)面(mian)(mian)之(zhi)間摩擦力(li)小,比較耐用(yong)(yong),開啟(qi)(qi)高(gao)度不大,制造(zao)容(rong)易,維(wei)修方便等優點(dian),不僅適(shi)(shi)用(yong)(yong)于(yu)中低(di)壓,而且適(shi)(shi)用(yong)(yong)于(yu)高(gao)壓。