... ,LN2,LCO2,LNG 2)Set Pressure:1.58Mpa 3)Working Temperature:-196~+40 1)Suitable Medium:LQ2,LAir,LN2,LCO2,LNG2 ... )Set Pressure:1.58Mpa3)Working Temperature:-196~+404)nomianl pressure:4Mpa5)nominal diameter:7mm6)outlet &inlet ... ,and Security situation of the gas system DA-07 Brass Low Temperature Dewar Safety valve