PVH057R02AA10B25200000100100010A

The PVH057R02AA10B25200000100100010A pump belongs to the PVH and PVE Open-Circuit Piston Pumps series from Vickers and supplies controlled hydraulic flow for automation circuits. It delivers 57.4 cm³ per revolution (3.50 in³ per revolution), so each shaft turn produces a fixed volume that simplifies system calculations. The housing bolts to machinery with an SAE C four-bolt flange, and drive torque is transmitted through a 4-bolt C, 14-tooth 12/24 external spline shaft that projects 2.20 inches. Rotation is right-hand clockwise, matching power units that turn in the CW direction. A single fluorocarbon shaft seal contains fluid under elevated temperatures, and case drainage is handled by a bottom-mounted .750-16 SAE O-ring port that returns leakage to tank. The unit offers no auxiliary mounting capability, dedicating the entire envelope to primary pumping duties.

The pump uses a pressure-compensated load-sense (PCLS) control, maintaining a 20 bar (290 psi) differential between load and control pressures so flow automatically adjusts to demand. An internal pressure limiter restricts outlet pressure to 250 bar (3,625 psi) to protect downstream components. Fluid enters through a 2-1/2 inch suction port and exits a 1-3/8 inch C61 outlet port; these sizes reduce inlet losses and keep discharge velocity within recommended limits. The design includes no diagnostic pressure ports, requiring external tees for gauge connections when monitoring is needed. Together, these hydraulic features combine with the previously noted mechanical construction to provide a compact, open-circuit source of reliable pressure and flow for mobile or industrial machinery.