Technical parameters Model Item JGD-1 JGD-2 JGD-3 Working pressure Mpa (kgf/cm2) 1．0(10) 1．6 (16) 2．5 (25) Explosion pressure Mpa (kgf/cm2) 2．0 (20) 3．0 (30) 4．5 (45) Vacuum Kpa (mm/Hg) 53．3 (400) 86．7 (650) 100 (750) Applicable Temperature ℃ -15℃-115℃(-30℃-250℃ under special conditions) Applicable media Air,compressed air,water,sea water,oil,acid,alkali,and so on