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低溫閥

DJQ系列氣動低溫緊急切斷閥

此類型專用低溫緊急切斷閥適用于低溫貯槽上切斷流通介質(zhì),特別是在出現(xiàn)火情故障時能及時切斷介質(zhì)。廣泛用于LNG、液態(tài)乙烯及其它低溫介質(zhì),具有體積小、重量輕、密封可靠、緊急切斷迅速可靠和防靜電的特點。

This type is special emergency cut-off valve is suitable for low temperature storage tank at low temperature on cut off circulation medium, especially in the event of a fire failure can promptly cut off the medium. Widely used in LNG, ethylene and other low temperature liquid medium, has small volume, light weight, reliable sealing, reliable emergency stop quickly and anti-static characteristics.

▋低溫緊急切斷閥主要技術(shù)參數(shù):

公稱壓力/Nominal pressure:4.0MPa

設(shè)計溫度/Design temperature:-196℃~+70℃

適用介質(zhì)/Applicable medium:LNG 、LO2、LN2、LAr

連接方式/Connection method:插焊

公稱通徑/Nominal diameter:25mm~50mm

強度試驗壓力/Strength test pressure:4.0MPa

氣密性試驗壓力/Air tightness test pressure:1.6MPa

方向密封試驗壓力/direction of seal test pressure:0.4MPa

氣缸氣源壓力/Air pressure cylinder:0.4~0.6MPa

緊急切斷溫度/Emergency cut-off temperature:+70℃

緊急切斷時間/Emergency cut-off time:<2秒

▋主要零部件材料:

閥體、閥蓋: CF8

閥瓣、閥桿: S30408

閥瓣密封件:PCTFE

主要零部件名稱 Main components name材料 Materials
閥體/Valve bodyZG0Cr18Ni9
閥瓣/Valve disc0Cr18Ni9Ti
閥蓋/Valve coverZG0Cr18Ni9
閥桿/Valve stem0Cr18Ni9
主密封件/Main sealPTFE或PCTFE
氣缸/cylinder鑄鋁
支架/stents鑄鋁
型號/Model主要外形和連接尺寸 Main form and the connection size (mm)重量 Weight
HH1D0D1DBW1W2M(kg)
DJQ-20P189478Ф20Ф25.5Ф100880Ф130Rc?7.2
DJQ-25P240530Ф25Ф32.5Ф100890Ф130Rc?7.7
DJQ-32P250489Ф32Ф38.5Ф1008105Ф130Rc?7.3
DJQ-40P227567Ф40Ф45.5Ф1258120Ф160Rc?13.2
DJQ-50P230570Ф50Ф57.5Ф12510140Ф160Rc?14.5

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