Duplomatic Piston Pump
The VPPM are variable displacement axial-piston pumps with variable swash plate, suitable for applications inside open circuits. They are available in three different frame sizes with maximum displacements up to 29, 46, 73 and 87 cm3/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 by adjustment screws. The pumps work with medium-high pressures (up to 280 bar continuous 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 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 types of controls.
The VPPL are axial piston pumps with displacement by means of an oscillating plate, suitable for medium pressure open circuit applications. They are available in seven sizes with displacements of 8,16, 22, 36, 46, 70 and 100 cm3/rev. The flow rate delivered by the pump is proportional to the number of revolutions and the angle of inclination of the swash plate, which can be modulated continously. The maximum inclination of the plate can be mechanically limited by means of adjustment screws. They are supplied with SAE J744 type connection flange – 2 holes and cylindrical keyed shaft end. Four different types of controls are available, according to the needs of use.
The HPR are variable displacement axial piston pumps, swash plate, for open circuit applications. They are available in seven sizes with nominal displacements from 55 to 280 cm3/rev. The flow rate delivered by the pump is proportional to the number of revolutions and to the angle of inclination of the oscillating plate. The maximum angle is limited mechanically by means of an adjustment screw. Thanks to the construction feautures, the HPR pumps are suitable for high operating pressures (420 bar continuous and 500 bar peak). All pumps are equipped with silencer in order to reduce noise emissions.