Bosch Rexroth | A10VSO45DFR31L-PPA12N00-SO149
A10VSO45DFR/31L-PPA12N00 SO149
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The A10VSO45DFR/31L-PPA12N00 SO149 pump belongs to the A10VSO Variable Pumps series from Bosch Rexroth and supplies regulated flow for hydraulic automation circuits. A DFR pressure-flow control adjusts swashplate angle so discharge follows pressure and load demands, and a differential pressure setting of 14 bar (200 psi) keeps adequate inlet conditions across the compensator. Every revolution displaces 45 cm³ of fluid, providing 81 l/min at 1800 rpm and 117 l/min at rated speed. The unit operates continuously at a nominal pressure of 280 bar (4100 psi) and accepts transient peaks to 350 bar (5100 psi). Counter-clockwise rotation matches common prime movers, while a maximum permitted speed of 3100 rpm covers short bursts; at full displacement the limit is 2600 rpm to avoid cavitation and excessive heat.
Mechanical loading reaches 200 Nm of torque at 280 bar, indicating drivetrain sizing for the intended duty. A 1 1/2 in SAE suction port under ISO 6162-1 standards accepts low-pressure supply lines, and a 1 in SAE working port in the same pattern handles pressure delivery to actuators. Case drainage exits through a 7/8-14 UNF-2B thread, and control oil connects on a 7/16-20 UNF-2B pilot port, both per ISO 11926. No through-drive is provided, so the pump is installed as a standalone unit without tandem mounting. These connection sizes and the absence of a secondary drive simplify plumbing and reduce envelope requirements in compact power packs.
Technical Specifications
Control Type
DFR Pressure-Flow
Differential Pressure Standard
14 bar (200 psi)
Displacement (per Rev)
45 cm3
Drain Port Thread
7/8-14 UNF-2B (ISO 11926)
Max Flow At 1800 Rpm
81 l/min
Max Flow At Nnom
117 l/min
Max Permitted Speed
3100 rpm
Max Speed At Vgmax
2600 rpm
Max Torque At 280 Bar
200 Nm
Maximum Pressure
350 bar (5100 psi)
Nominal Pressure
280 bar (4100 psi)
Pilot Port Thread
7/16-20 UNF-2B (ISO 11926)
Rotation
Counter-Clockwise
Suction Port Size
1 1/2 in SAE (ISO 6162-1)
Through Drive
None
Working Port Size
1 in SAE (ISO 6162-1)
1620 Old Apex Road
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