... of Full-automatic oil pipe pressure test Performance of Hydrostatic Tester Water pressure testing machine is mainly used for tubing ... outer envelop, compulsive sealing. Voltage controlled, DC24V,DC24V Air supply,pressur 0.4-0.6kg,flowout,1m3/hour Technological ... pre-sealing——water suppling and air exhausting——close the water suppling and air exhausting valves——pressure setting——testing and recording—— ...