Comparing Hydraulic Pumps

Comparing different types of hydraulic pumps and their maximum pressures and flow.

Type of PumpMaximum Pressure (bar)Maximum Flow (l/min)Comment
Centrifugal203000
Gear175300Positive displacement
Vane175500Positive and variable displacement
Axial Piston - port-plate300500Positive and variable displacement
Axial Piston - valved700650Positive and variable displacement
In-line Piston1000100Positive and variable displacement

Unit Conversions

  • 1 bar = 1×10⁵ Pa = 14.5 psi
  • 1 l/s = 2.1 cfm = 15.9 gal (US)/min