液氧截止閥執行標準 設計與制造:JB/T7749-95 結構長度:GB/T12221-89 連接端:GB/T9113-2000,HG20592-97,SH3406-96GB/T12224-89 檢驗與試驗:JB/T7749-95 ?。鳎鳎鳎觯幔欤觯澹常叮担悖铮怼 ∫貉踅刂归y性能參數型號DJ41Y-16DJ41Y-16PDJ41Y-25DJ41Y-25PDJ41Y-40DJ41Y-40P工作壓力(MPa)1.62.54.0適用溫度(℃)-45-101-196適用介質液化天然氣、乙烯、丙烯等低溫介質材料閥體、閥蓋LCBLC3LCBLC3LCBLC3閥瓣、閥座鉻鎳鋼+鈷鉻鎢閥桿鉻鎳鋼