Gear pumps (DUPLOMATIC)


The GP pumps are fixed displacement external gear pumps with axial clearance compensation.

  • They give high volumetric flows even with high operating pressures, a low noise level, and they have a high endurance thanks to the balancing system of the loads on the guide bushings.
  • They are divided into three size groups, with displacements of up to 9,1 - 27,9 and 87,6 cm3/rev respectively, and with operating pressures of up to 250 bar (standard) and up to 310 bar (version for high pressures H).
  • They are available with clockwise, anticlockwise and reversible rotation, with tapered shaft (standard). Other kind of shaft are available upon request.
  • They are available in multiple versions, and can be combined in multi-flow groups, with a splined connection motion system that guarantees high power performances.


The 1P pumps are fixed displacement external gear pumps with axial clearance compensation.

  • They give high volumetric flows even with high operating pressures, a low noise level, and they have a high endurance thanks to the balancing system of the loads on the guide bushings.
  • They are available with displacements going from 1,1 to 8,0 cm3/rev and with operating pressures of up to 230 bar.
  • They are available with clockwise rotation direction and with tapered shaft.
  • The hydraulic connection is with BSP threaded ports type.


IGP pumps are volumetric displacement pumps with internal gears, available in five sizes, each divided into a range of different displacement.

  • The pumps feature high volumetric performance levels, thanks to both radial and axial compensation in proportion to operating pressure, in addition to low noise levels.
  • Optimal load distribution and special friction bearings enable continuous duty at high pressures and ensure extended pump lifetime.
  • IGP pumps are also available in multiple versions which can be combined to make multi-flow groups.

Product Manager

Paulo Faustino