Variable displacement pump pumps with direct regulator The RV1Ds are variable displacement pump pumps with mechanical pressure compensator. The pressure compensator maintains in an eccentric position the State Ring of the Pompante Group by means of a adjustable load spring: when the pressure in the delivery equals the pressure corresponding to the calibration of the spring, the State ring is moved to the center by instantly adapting the scope provided to the values ​​required by the system. The Pompante Group is equipped with hydrostatic axial compensation distribution discs that improve its volumetric performance by reducing the wear of the components. The pumps are divided into four dimensional groups, with displacements from 16 to 120 cm3/lap with operating pressure up to 120 bar. Available with time of rotation, with rectangular flange and conical tree with key or ISO 3019/2 flange and cylindrical tree with key. This product replaces the PVD pump, out of production