Bosch Rexroth | PVV4-1X122R
PVV4-1X/122R
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The PVV4-1X/122R pump belongs to the PV Fixed Displacement Pumps series from Bosch Rexroth and supplies constant hydraulic flow to automated machinery. Its displacement is 121.6 cm³ per revolution, so each shaft turn delivers a fixed volume for predictable actuator movement. At 1500 min-1 the pump provides a maximum flow of 177 l/min, supporting medium-duty circuits that need steady throughput. Continuous outlet pressure is rated at 175 bar, balancing force transmission with component longevity. The pressure fluid must be HLP mineral oil conforming to DIN 51524-2 to maintain lubrication and sealing. A cleanliness class of ISO 4406 20/18/15 is specified to limit particulate wear, and porting keeps the flow direction independent of shaft rotation while the shaft itself turns clockwise.
Permitted fluid temperature spans from -10 °C to +70 °C, allowing operation without viscosity extremes in normal plant environments. The shaft must rotate at least 600 min-1 to sustain internal lubrication, and with standard fluid it may reach 1800 min-1 for higher output. When HFD-R fire-resistant fluid is used the maximum speed drops to 1200 min-1 to control heat generation. Cavitation avoidance requires the inlet absolute pressure to stay above 0.9 bar, yet it must not exceed 2.4 bar to protect shaft seals. These operating limits define how the PVV4-1X/122R integrates into hydraulic power units and keep the fixed-displacement design working reliably in automated plant motion loops.
Technical Specifications
Cleanliness Class
ISO 4406 20/18/15
Continuous Outlet Pressure
175 bar
Direction Of Flow
Independent Of Rotation
Displacement
121.6 cm3/rev
Fluid Temperature Max
+70 °C
Fluid Temperature Min
-10 °C
Inlet Absolute Pressure Max
2.4 bar
Max Flow (n=1500 Min-1)
177 l/min
Max Speed (hfd-r Fluid)
1200 min-1
Max Speed (standard Fluid)
1800 min-1
Minimum Inlet Absolute Pressure
0.9 bar
Minimum Speed
600 min-1
Pressure Fluid
HLP mineral oil (DIN 51524-2)
Rotation Direction
Clockwise
1620 Old Apex Road
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