... efficiency and long life 2.Strength,High pressure 3.Low noise,low pulsation 4.Displacement: 40~100ml/r Hydraullic gear pump ... ,and DU slide bearing,all these keep low pulsation,low noise and long life.Full option of shafts,flanges and ports ... United States, Canada, Mexico, Argentina, Brazil Group 3.5 Low Noise and High Pressure Hydraulic Pump for Heary Industrial