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Duplomatic PVD - Variable Displacement Vane Pump with Direct Adjuster (Sizes 25 - 45)

Duplomatic
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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 PVD pumps are variable displacement vane pumps with a mechanical type of pressure compensator.

 
  • They allow instantaneous adjustment of the flow rate according to the circuit requirements. The consequence is that energy consumption is reduced and adequate in every phase of the cycle.
  • The pump group is complete with hydrostatic axial compensation distribution plates that improve the volumetric efficiency and reduce wear of the components.
  • The pressure compensator keeps the cam ring of the pumping group in the eccentric position with use of an adjustable load spring. When the delivery pressure equals the pressure corresponding to the spring setting, the cam ring is moved toward the center, adjusting the flow rate to the values required by the plant.
  • In zero flow demand conditions, the pump delivers oil only to compensate any possible bleedings and pilotings, keeping the circuit pressure constant.
  • The compensator response times are very low such as to allow elimination of the pressure relief valve.

Description 25 28 35 45
Geometric Displacement (UNI ISO 3662) 16 cm³/rev 20cm³/rev 25 cm³/rev 31.5 cm³/rev
Actual Displacement 17,9 cm³/rev 22,1 cm³/rev 26,9 cm³/rev 34,5cm³/rev
Maximum Flow at 1450 rpm and p = 80 bar  25 l/min  29 l/min 36,2l/min   45,6 l/min
Max Working Pressure  120 bar 100 bar 100 bar 100 bar
Pressure Adjustment Range  20 ÷ 120 bar   30 ÷ 100 bar   30 ÷ 100 bar 30 ÷ 100 bar
Maximum Drain port Pressure allowed 1 bar 1 bar  1 bar  1 bar
Rotation Speed Range 800 ÷ 1800 rpm 800 ÷ 1800 rpm 800 ÷ 1800 rpm 800 ÷ 1800 rpm
Rotation Direction Clockwise (seen from the outlet shaft side) Clockwise (seen from the outlet shaft side) Clockwise (seen from the outlet shaft side)  Clockwise (seen from the outlet shaft side)
Shaft Loads  Radial and Axial loads are not Allowed Radial and Axial loads are not Allowed Radial and Axial loads are not Allowed Radial and Axial loads are not Allowed
 Version H Max Applicable Torque on Shaft  110 Nm 197 Nm 400 Nm 740 Nm
 Version K Max Applicable Torque on Shaft 70 Nm - - -
 Ambient Temperature Range -20/ 50 °C -20/ 50 °C -20/ 50 °C -20/ 50 °C
 Fluid Temperature Range -10/ 50 °C -10/ 50 °C -10/ 50 °C -10/ 50 °C
Recommended Viscosity 22 ÷ 68 cSt 22 ÷ 68 cSt 22 ÷ 68 cSt 22 ÷ 68 cSt
 Mass  7,3 kg 12 kg 32 kg 44 kg

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Vat Reg Number: 846644204 Company Registration Number: 5230249

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