PVV21-1X/068-040LA15DDMB

The PVV21-1X/068-040LA15DDMB is a fixed displacement pump produced by Bosch Rexroth within the PV Fixed Displacement Pumps series. It supplies pressurized hydraulic fluid for automated circuits where consistent flow is required. The pump delivers 39.5 cm³ per revolution on the cover side, establishing the displacement for that stage. On the flange side, displacement rises to 67.5 cm³ per revolution to support higher volume demands downstream. Continuous operating pressure is limited to 160 bar on the cover side, providing a safe rating for actuators connected to that port. The flange side permits 175 bar of continuous pressure, enabling the adjacent circuit to run at a slightly higher working load. When driven at 1500 rpm, the cover side yields 59 l/min of flow, ensuring predictable supply to medium-sized hydraulic consumers. Under the same speed, the flange side outputs up to 100 l/min for devices needing greater volume. The unit is configured for anti-clockwise rotation, so drive selection and hose routing must match this direction. It is intended for operation with HLP mineral oil according to DIN 51524-2 to maintain lubrication and seal compatibility.

The pump accommodates speeds from 600 rpm to a maximum of 1800 rpm, allowing integration with engines or electric motors across typical industrial ranges. A SAE-B (J744) mounting flange aligns the housing with standard power take-off patterns, simplifying mechanical installation. The cover side pressure port is sized at SAE 3/4 inch, providing the correct thread for hose fittings dedicated to that circuit. The flange side uses a larger SAE 1 inch pressure port to handle the higher flow rate associated with its displacement. Suction is introduced through a SAE 2-1/2 inch connection, which minimizes inlet restriction and prevents cavitation. These dimensional interfaces help installers match pipework without adapters. The assembled pump weighs 20 kg, light enough for single-person handling during maintenance yet robust for continuous duty.