Bosch Rexroth | PGH4-3X032RE11VU2
PGH4-3X/032RE11VU2
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The PGH4-3X/032RE11VU2 gear pump is produced by Bosch Rexroth within the PGH High Pressure Gear Pumps series and provides the pressurized flow required in hydraulic automation circuits. Its displacement of 32.70 cm³ per revolution determines the volume delivered to cylinders and motors at each shaft turn. A continuous operating limit of 315 bar supports high-pressure work cycles, while a 350 bar peak rating absorbs brief load surges without damage. The pump rotates clockwise, so prime mover orientation must match the right-hand shaft direction. It functions between 200 and 3000 rpm, letting designers select slow control movements or fast traverse speeds from the same unit. A through-drive option allows another pump to mount in tandem on the same motor. Installation uses a 2-bolt 101-2 flange per ISO 3019-1 SAE A, and a 101.6 mm h8 pilot keeps the housing concentric with the mounting face.
An ambient temperature ceiling of 60 °C protects bearings and seals from external heat, while hydraulic fluid may reach 80 °C in the pressure gallery without exceeding design limits. FKM sealing resists this temperature and common mineral oils, maintaining leakage control over long service intervals. The 25 mm diameter shaft carries the torsional load required for the stated pressure and speed capabilities. Fluid enters through a 1 1⁄2 in suction port made to ISO 6162-1 S for low inlet losses and exits by a 1 in pressure port that follows ISO 6162-2 H to simplify manifold connections. These port sizes match the displacement so line velocities remain within safe limits. Combined, the thermal allowances, robust seals, shaft size, and port geometry broaden the pump’s suitability for compact power units and machine tool circuits.
Technical Specifications
Ambient Temperature Max
+60 °C
Direction Of Rotation
Clockwise (R)
Displacement
32.70 cm³/rev
Max Operating Pressure
315 bar
Max Pressure (peak)
350 bar
Mounting Flange
2-Bolt 101-2 (ISO 3019-1, SAE A)
Mounting Pilot Diameter
101.6 mm (h8)
Pressure Fluid Temp Max
+80 °C
Pressure Port
1 in (ISO 6162-2 H)
Seal Material
FKM
Shaft Diameter
25 mm
Speed Maximum
3000 rpm
Speed Minimum
200 rpm
Suction Port
1 1/2 in (ISO 6162-1 S)
Through-drive
Yes
1620 Old Apex Road
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