Bosch Rexroth | PVV4-1X122L
PVV4-1X/122L
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The PVV4-1X/122L pump belongs to the PV Fixed Displacement Pumps series produced by Bosch Rexroth. It supplies a fixed volume of hydraulic fluid to automated circuits, providing predictable flow for actuators and valves. The displacement is 121.6 cm³ per revolution, so each shaft turn delivers that volume to the pressure line. A left, anti-clockwise rotation is specified to match motor output direction in standard power packs. The unit handles up to 175 bar continuously, allowing stable operation in medium-pressure systems. At 1500 rpm it produces 177 l/min, supporting cylinders and motors that require high flow. The pump operates with HLP hydraulic oil according to DIN 51524-2, ensuring compatibility with common mineral-based fluids. Installation follows the flange style defined by SAE J744, permitting direct mounting to electric or combustion prime movers. The overall weight is 23 kg, which needs consideration for bracket and frame loading.
Speed limits define the usable operating window: the shaft may run as slow as 600 rpm for low-flow standby conditions and as fast as 1800 rpm when inlet pressure is 1 bar. The mounting flange conforms to the SAE-C pattern, including a 127 mm pilot diameter for centering and 17.5 mm bolt holes for secure attachment under load. Pressure porting uses an SAE 1 1/4 inch connection with a 7/16-14 UNC-2B thread, delivering the outlet flow to the circuit without adaptors. The suction side is sized at SAE 2 inch and carries a 1/2-13 UNC-2B thread; the larger inlet reduces velocity and helps prevent cavitation at high delivery rates. Together these port dimensions accommodate the rated flow while maintaining acceptable pressure drop throughout the hydraulic loop.
Technical Specifications
Direction Of Rotation
Left (Anti-Clockwise)
Displacement
121.6 cm3/rev
Max Continuous Pressure
175 bar
Max Flow At 1500 Min–1
177 l/min
Max Speed (1 Bar Inlet)
1800 min–1
Minimum Speed
600 min–1
Mounting Flange
SAE-C
Mounting Flange Bolt Hole Ø
17.5 mm
Mounting Flange Pilot Ø
127 mm
Mounting Style
Flange (SAE J744)
Pressure Connection Size
SAE 1 1/4 in
Pressure Connection Thread
7/16-14 UNC-2B
Pressure Fluid
HLP To DIN 51524 Part 2
Suction Connection Size
SAE 2 in
Suction Connection Thread
1/2-13 UNC-2B
Weight
23 kg
1620 Old Apex Road
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