Bosch Rexroth | PVV4-1X122RD
PVV4-1X/122RD
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The PVV4-1X/122RD belongs to the PV Fixed Displacement Pumps series manufactured by Bosch Rexroth for closed-loop hydraulic automation. The pump displaces 121.6 cm³ per revolution so each shaft turn moves a fixed fluid volume for accurate circuit sizing. It supports a continuous outlet pressure of 175 bar, maintaining stable actuation forces in medium-pressure systems. A maximum flow of 177 l/min at 1500 rpm provides predictable delivery for cylinders or motors running at common drive speeds. The shaft may reach 1800 rpm when the inlet is held at 1 bar absolute, which permits higher power density without damaging cavitation. A minimum operating speed of 600 rpm lets the unit supply fluid in low-speed, low-noise applications. Clockwise rotation defines how it couples to prime movers, and the pressure port is positioned on the top at 0° from the inlet to streamline vertical piping layouts. The suction port is sized at SAE 2 in so it can accept large hoses that reduce inlet restriction.
An allowable inlet pressure of 0.83 to 2.4 bar absolute protects the pump against vapor formation while drawing oil from the reservoir. Operation with HLP mineral oil according to DIN 51524-2 ensures seal compatibility and stable lubrication. A viscosity range of 13 to 860 mm²/s covers cold start conditions through to fully warmed service. The fluid temperature window of −10 to +70 °C supports outdoor machinery that sees seasonal changes. Required cleanliness to ISO 4406 20/18/15 limits particle contamination and extends service life. Mounting follows the SAE J744 flange pattern so the housing bolts directly to standard engine or bell-housing interfaces. The pressure port is sized at SAE 1 1/4 in to match common high-flow fittings, and a weight of 23 kg influences bracket design and handling during maintenance.
Technical Specifications
Continuous Outlet Pressure
175 bar
Displacement
121.6 cm³/rev
Fluid Cleanliness
ISO 4406 20/18/15
Fluid Temperature Range
-10 to +70 °C
Inlet Pressure (abs)
0.83 to 2.4 bar
Max Flow At 1500 Rpm
177 l/min
Maximum Speed (1 Bar Inlet)
1800 rpm
Minimum Speed
600 rpm
Mounting Style
SAE J744 Flange
Pressure Fluid
HLP Mineral Oil (DIN 51524-2)
Pressure Port Position
Top (0° From Inlet)
Pressure Port Size
SAE 1 1/4 in
Rotation
Clockwise
Suction Port Size
SAE 2 in
Viscosity Range
13 to 860 mm²/s
Weight
23 kg
1620 Old Apex Road
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