Bosch Rexroth | PVV21-1X055-046RA15DDMB
PVV21-1X/055-046RA15DDMB
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The PVV21-1X/055-046RA15DDMB pump belongs to the PV Fixed Displacement Pumps series and is produced by Bosch Rexroth for hydraulic automation systems that require a steady flow source. It turns clockwise and delivers 45.9 cm3 per revolution on the cover side and 55.2 cm3 per revolution on the flange side, so two different circuit sections can be supplied from one housing. When driven at 1500 min-1, the cover side output reaches 70 l/min while the flange side reaches 80 l/min. The pump can start operating at 600 min-1 and continue up to a maximum of 1800 min-1, giving a broad usable speed range for machine designers. A drive shaft torque capacity of 250 Nm allows direct coupling to industrial electric or combustion engines without overloading the shaft.
The unit withstands 140 bar continuous pressure on the 45.9 cm3 section and 175 bar on the 55.2 cm3 section, enabling different working pressures within the same assembly. Hydraulic connections follow SAE patterns secured with UNC screws, with a 3/4 inch SAE pressure port on the cover side and a 1 inch SAE pressure port on the flange side to match standard tube sizes. A 2 1/2 inch SAE suction port feeds both pumping groups and minimizes inlet velocity to reduce cavitation risk. The assembled pump weighs 20 kg, which simplifies mounting on power packs or directly on machine frames while still providing the strength needed to handle the rated pressures. The UNC fasteners used in the SAE ports simplify service because standard tools are sufficient during field repairs.
Technical Specifications
Displacement (cover Side)
45.9 cm3/rev
Displacement (flange Side)
55.2 cm3/rev
Drive Shaft Max Torque
250 Nm
Max Continuous Pressure (45.9 Cm3)
140 bar
Max Continuous Pressure (55.2 Cm3)
175 bar
Max Flow At 1500 Min-1 (45.9 Cm3)
70 l/min
Max Flow At 1500 Min-1 (55.2 Cm3)
80 l/min
Max Speed
1800 min-1
Min Speed
600 min-1
Ports
SAE (UNC Screws)
Pressure Port (cover Side)
SAE 3/4 in
Pressure Port (flange Side)
SAE 1 in
Rotation
Clockwise
Suction Port
SAE 2 1/2 in
Weight
20 kg
1620 Old Apex Road
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