Specifications: Power Supply:220v 50hz Power: 1.8kw Rotating Speed:2800r/Min Working Pressure:0-30mpa Lubricating System:splash Type Compress Mode:two-stage Compression Cooling Mode:water Cooling Weight:15.8kg Size:360180370mm Noise:85db Application: Air Tightness Test, Pressure Vessel, Withstand Pressure Experiment and Other Industrial Fields Packing List: 1x Main Machine 1x Water Pump 2x Pressure Relief Screw 1x Breath Nozzle 1x Water Pipe 4x Explosion-proof Disc 5x Filter Element 1x Set of O-rings 1x Flter.