Bosch Rexroth | PVQ21-1X068-046RA15UUMB
PVQ21-1X/068-046RA15UUMB
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The PVQ21-1X/068-046RA15UUMB pump is produced by Bosch Rexroth within the PV Fixed Displacement Pumps series for constant-flow hydraulic automation tasks. Its internal arrangement provides two fixed outputs of 45.9 cm³ per revolution on the cover side and 67.5 cm³ per revolution on the flange side, allowing dual-circuit supply from a single housing. Rotation is clockwise, so it couples to right-hand drive engines or electric motors without altering shaft orientation. A cylindrical drive shaft aligns directly with standard couplings, while the SAE-B 101-2 mounting flange positions the pump securely on common power units. The design omits a through drive, reducing length and eliminating secondary leakage points. Total mass is 20 kg, enabling one-person handling during installation or service.
Under continuous duty, the cover section sustains 140 bar, while the flange section tolerates 210 bar, so the larger stage can support higher system pressures. At 1,500 rpm the cover section reaches 70 l/min and the flange section attains 100 l/min, giving operators distinct circuit capacities from a single prime mover. The pump must run at no less than 600 rpm to maintain internal lubrication and volumetric efficiency. Pressure ports are sized for SAE 3/4 on the cover side and SAE 1 on the flange side, matching the flow levels to standard hose fittings. A shared suction port with an SAE 2 1/2 connection minimizes inlet losses for both stages. NBR seals are used throughout to resist typical mineral hydraulic oils and maintain leak-tight performance over temperature changes.
Technical Specifications
Direction Of Rotation
Clockwise (R)
Displacement (cover Side)
45.9 cm3/rev
Displacement (flange Side)
67.5 cm3/rev
Drive Shaft Type
Cylindrical (A)
Max Continuous Pressure (cover Side)
140 bar
Max Continuous Pressure (flange Side)
210 bar
Max Flow (cover Side @1500 Min–1)
70 l/min
Max Flow (flange Side @1500 Min–1)
100 l/min
Min Speed
600 min–1
Mounting Flange
SAE-B 101-2 (B)
Pressure Connection (cover Side)
SAE 3/4
Pressure Connection (flange Side)
SAE 1
Seal Material
NBR (M)
Suction Connection
SAE 2 1/2
Through Drive
None
Weight
20 kg
1620 Old Apex Road
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