QDQ641F氣動切斷閥QDY421F液動緊急切斷閥，型號材質壓力口徑溫度、設計選型安裝、生產制造廠家產地價格
QDQ641F氣動切斷閥：公稱通徑：50～300mm；公稱壓力： ～ ；適用介質：天然氣、液化氣、液氨；適用溫度：-40～+80℃。
QDY421F液動緊急切斷閥：公稱通徑：15～200mm；公稱壓力： ～ ；適用介質：天然氣、液化氣、液氨；適用溫度：-40～+80℃。


截止閥標簽：J41H/W/Y/N/F/截止閥,J44W角式截止閥,J541W不銹鋼傘齒輪截止閥,J61W/H/Y截止閥,J41W美標API不銹鋼截止閥,J961W/Y/H焊接截止閥,DS/J61H焊接式水封截止閥,J965Y/J961Y美標電動Y型截止閥,DJ61Y鍛鋼低溫截止閥,DJ41W低溫截止閥,J11H/Y/J61H/Y/W美標鍛鋼截止閥,JY44W角式截止閥,SLJ41Y節流截止放空閥,TP41Y閥套式排污閥,JK41H/Y真空截止閥,U41SM法蘭柱塞閥,U11SFM內螺紋柱塞閥,UJ41SM柱塞閥,J41N燃氣截止閥,QDQ421F氣動緊急切斷閥,ZCRB燃氣緊急切斷閥,JY41F燃氣日式截止閥,SDQD421F手動帶氣動緊急切斷閥,QDQ641F氣動切斷閥,QDY421F液動緊急切斷閥,J11B/J21B/J6IB/J41B液氨用截止閥,JY41W氧氣用截止閥,KJ41F不銹鋼截止閥,高壓鍛鋼抗硫角式雙作用節流截止放空閥、KFJ41Y/F、FJ541Y、FJ941Y、SLJ41Y、SLJ44Y、KFJ41Y/F,平衡式節流截止閥,TP41Y/F、TP541Y/F不銹鋼閥套式排污閥