light weight, low fuel consumption,high efficiency,low noises,slight tremor, easy starting, get to the level of international GZB40A 3-cylinders Plunger PumpTechnical Parameters Working Pressure: 1-4MPAFlow:40L/MINThrow:10mRotating Speed700-800R/MINPower2.2-3KWLight weight, Low fuel consumption, High efficiency, Low noises, Light tremor,Easily start. GZ B40A 3-cylinders Plunger Pump