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Hydraulic Pumps
Explore our range of hydraulic pumps for industrial, mobile, construction and agricultural applications. The collection includes gear pumps, piston pumps, vane pumps and variable displacement pumps for reliable operation in demanding hydraulic systems.
We supply solutions for new equipment, maintenance and replacement projects, with selection based on pressure, flow rate, displacement, mounting and shaft type.
Contact IMPEX CONNECT with the pump model or technical requirements to find a suitable solution.
Gear Pumps
Gear Pumps
Piston Pumps
Piston Pumps
Vane Pumps
Vane Pumps
Accessories for pumps
Accessories for pumps
IMPEX ENGINEERING TOOLS
Size the pump. Know the power.
Calculate hydraulic pump flow, displacement, speed and drive power. Turn your operating point into a clear selection enquiry.
01 / Your operating point
Enter the pump displacement and shaft speed to calculate delivered flow and the power needed at your pressure.
cm³/rev
l/min
rpm
kW
bar
Outlet minus inlet pressure. For low-pressure tank suction, outlet gauge pressure is usually a close approximation.
Mechanical output at the drive shaft, not electrical input power.
Efficiency & drive reserve
%
%
%
Applied only to the preliminary motor rating. Calculated pump power stays unchanged.
Defaults: ηv = 92%, ηhm = 90%. These are editable assumptions, not manufacturer performance data. Use values for your operating point.
Try an example:
Explore pump types
Fixed or variable displacement · use effective Vg
Vg · n · Δp● Live calculation
02 / Calculated results
Delivered flow—l/min
Required shaft power—kW
| Pump displacement | — |
|---|---|
| Delivered flow | — |
| Shaft speed | — |
| Hydraulic output power | — |
| Required shaft torque | — |
| Estimated pump power loss | — |
| Overall pump efficiency | — |
| Theoretical flow (no leakage) | — |
—
Preliminary motor rating
Next listed metric rating above shaft power + reserve. Confirm starting torque, duty and motor data before selection.
Calculated at full available shaft power. Allow a reserve or reduce the operating point for actual selection.
Shaft power vs. pressure difference
Calculated trend from 0 to your Δp, with fixed displacement, speed and efficiencies. Not a manufacturer performance curve.
Preliminary steady-state calculation. It does not verify a specific pump model or replace manufacturer curves and engineering selection. Pump power loss is not a complete system cooling calculation. No allowance for acceleration, cold starts or pressure transients is included.