Bosch Rexroth | PSV80SV25-6974049-62
PSV80/SV25 6974049 62
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The PSV80/SV25 6974049 62 pump assembly is produced by Bosch Rexroth within the PSV Variable Vane Pumps series for adjustable fluid delivery in hydraulic automation. Its primary stage uses a variable-displacement vane design, allowing the flow to change with demand. A displacement of 118 cm³ per revolution determines the volume transferred each shaft turn, while a flow rate of 234.7 L/min at 100 psi and 1800 rpm meets mid-range circuit requirements. The unit can slow to 750 rpm for light duty or accelerate to 1800 rpm for maximum output, and it tolerates system pressures up to 1500 psi without internal damage. Case pressure is limited to 10 psig to protect shaft seals, and an inlet vacuum limit of 6 inHg is set to prevent cavitation. Right-hand rotation matches conventional clockwise prime movers, ensuring straightforward drivetrain coupling.
The assembly incorporates a secondary pressure-compensated vane section that supplements flow when circuit demand rises. This auxiliary pump delivers 42 cm³ per revolution, providing 20 gpm at 1800 rpm so parallel functions can be supplied without oversizing the main stage. It withstands system pressures up to 1000 psi, offering a lower-pressure branch for auxiliary actuators. Right-hand rotation on the secondary side aligns both stages to the same drive direction, simplifying shaft design. A flange machined to ISO 3019-1 standard furnishes a familiar mounting interface, and the pump can be installed in any orientation to fit compact power-unit layouts.
Technical Specifications
Primary Displacement
118 cm³/rev
Primary Flow @ 100 Psi, 1800 Rpm
234.7 L/min
Primary Max Case Pressure
10 psig
Primary Max Inlet Vacuum
6 inHg
Primary Max Speed
1800 rpm
Primary Max System Pressure
1500 psi
Primary Min Speed
750 rpm
Primary Mount Position
Any
Primary Mounting
Flange To ISO 3019-1
Primary Pump Type
Variable Displacement Vane
Primary Rotation
Right-Hand Only
Secondary Displacement
42 cm³/rev
Secondary Flow @ 1800 Rpm
20 gpm
Secondary Max System Pressure
1000 psi
Secondary Pump Type
Pressure-Compensated Vane
Secondary Rotation
Right-Hand Only
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