Bosch Rexroth | PVV21-1X045-018RA15DDMB
PVV21-1X/045-018RA15DDMB
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The PVV21-1X/045-018RA15DDMB pump is produced by Bosch Rexroth for the PV Fixed Displacement Pumps series and supplies constant hydraulic flow for automated machinery. The flange side displaces 45.4 cm³ per revolution, while the cover side displaces 18.0 cm³ per revolution so two circuits can be driven simultaneously. At 1500 min⁻¹ the flange outlet delivers 66 l/min and the cover outlet supplies 26 l/min, giving fixed flow rates for actuators that require steady volume. Continuous pressure limits reach 175 bar on the flange section and 210 bar on the cover section, letting each stage handle different working loads. Rotation is clockwise, aligning the shaft with right-hand prime movers used in typical industrial power units.
The pump tolerates speeds up to 1800 min⁻¹, setting the maximum drive motor setting for safe operation. The flange pressure port is on the top of the housing and is tapped for an SAE 1 in fitting, while the cover pressure port uses an SAE 3⁄4 in thread. Suction flow enters through an SAE 2 1⁄2 in port that reduces inlet restriction. NBR sealing material is fitted for compatibility with common hydraulic oils, and there is no through drive, so the unit must be installed at the end of a drive chain. The assembly weighs 20 kg, providing a rigid housing that can be handled without special lifting equipment.
Technical Specifications
Displacement (cover Side)
18.0 cm3/rev
Displacement (flange Side)
45.4 cm3/rev
Flow At 1500 Min-1 (cover)
26 l/min
Flow At 1500 Min-1 (flange)
66 l/min
Max Continuous Pressure (cover)
210 bar
Max Continuous Pressure (flange)
175 bar
Max Speed
1800 min-1
Pressure Port Position (flange)
Top (0 deg from inlet)
Pressure Port Size (cover)
SAE 3/4 in
Pressure Port Size (flange)
SAE 1 in
Rotation Direction
Clockwise (R)
Seal Material
NBR (M)
Suction Port Size
SAE 2 1/2 in
Through Drive
None
Weight
20 kg
1620 Old Apex Road
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