One-way valve structure, large pressure gauge with external oil and water, filter Power: 1800 watts Pressure: 0-30mpa Cooling: water-cooled design Safety: Motor overload protection without waterproof explosion valve. Power supply system: 220V/50Hz Working pressure: 0-38Mpa Motor power: 1.8Kw Compression stages: two-stage compression Speed: 2800rlmin Suction pressure: atmospheric pressure Net weight: 15Kg Cooling method: water-cooled With packaging weight: 17Kg Lubrication method: splash oil lubrication Length X width x height: 34×17X33 Safety setting: low pressure/high pressure safety valve Noise: 76Db Exhaust volume: 80L/min Ultimate pressure: 40MPA Ex-factory explosion-proof pressure: 30MPA.