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Duplomatic VPPM – Variable Displacement Axial Piston Pump

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Duplomatic Oleodinamica represents the real alternative in the hydraulics market.

Duplomatic’s wide range of products and worldwide service network, grant its users a real competitive advantage.The Duplomatic VPPM pumps are variable displacement axial-piston pumps with variable swash plate, suitable for applications with open circuits.

  • They are available in three different frame sizes with maximum displacements up to 29, 46, 73 and 87cm3/rev.
  • The pump flow rate is proportional to the rotation speed and to the angle of the swash plate, which can be continuously modulated. The maximum and minimum angle can be limited mechanically via suitable regulating screws.
  • The pumps feature medium-high working pressures (up to 280 bar constant and 350 bar peak). Thanks to some particular design features, these pumps are able to bear high axial and radial loads on the shaft.
  • They are usually supplied with a ISO 3019/2 mounting flange, with the exception of the rear and intermediate pumps, if multiple pumps, which are only available with a SAE J744 2-holes flange and a SAE J744 splined shaft.
  • They are available with seven different types of regulating control, each according to the application needs.

Product Specification

Description  029  046 073 087
Maximum Displacement  29 cm³/rev   46 cm³/rev   73 cm³/rev 87 cm³/rev
Continuous Maximum Delivery Pressure (Relative) 280 bar 280 bar  280 bar  250 bar
Intermittent Maximum Delivery Pressure (Relative)  315 bar   315 bar  315 bar  280 bar
Peak Maximum Delivery Pressure (Relative)  350 bar  350 bar  350 bar  315 bar
Maximum Rotation Speed at Maximum Displacement  3000 rpm 2600 rpm 2200 rpm 1850 rpm
Rotation Direction  Clockwise or Anticlockwise (Looking at the Drive Shaft) Clockwise or Anticlockwise (Looking at the Drive Shaft) Clockwise or Anticlockwise (Looking at the Drive Shaft) Clockwise or Anticlockwise (Looking at the Drive Shaft)
Hydraulic Connection SAE Flange Fittings SAE Flange Fittings SAE Flange Fittings SAE Flange Fittings
Type of Mounting (Single Pump)  ISO 3019/2 Flange   ISO 3019/2 Flange  ISO 3019/2 Flange   ISO 3019/2 Flange
Ambient Temperature Range  -15 / +70 °C -15 / +70 °C -15 / +70 °C -15 / +70 °C
Fluid Temperature Range -25 / +80 °C -25 / +80 °C -25 / +80 °C -25 / +80 °C
Recommended Viscosity 15 ÷ 35 cSt  15 ÷ 35 cSt  15 ÷ 35 cSt  15 ÷ 35 cSt
Mass (Empty Single Pump)  18 kg 24 kg 33 kg 33 kg

Duplomatic – VPPM – Variable Displacement Axial- Piston Pumps – Data Sheet

Additional Information

Manufacturer

Duplomatic

Hydraulic Pump Units

Piston Pump

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