The high pressure pump: Max Flow: 158L/min; 9.48m3/h,Max Power: 90kW,Max Pressure: 70MPa A. The characteristics of the high pressure pump 3D2A-S the structure of needle bearing between crankshaft and connecting rod, lower friction coefficient, very good lubrication, stable driving, low temperature suitable for long time operation. B. Applying fields: coal excavation with high pressure water ...