Bosch Rexroth | P2GH5125GF2022RE1120U2
P2GH5/125+GF2/022RE11+20U2
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The P2GH5/125+GF2/022RE11+20U2 pump unit belongs to the PGH High Pressure Gear Pumps series produced by Bosch Rexroth. It is intended for hydraulic automation where a single drive shaft powers two gear stages arranged as a tandem. The clockwise direction of rotation matches common industrial motor setups, preventing cross-port reversal in fixed installations. The primary stage has a displacement of 125.30 cm³ per revolution, so each revolution delivers a defined volume of oil to the circuit. At a reference speed of 1450 rpm and 10 bar, this section supplies 179.8 l/min, allowing large actuators to move quickly. A maximum operating pressure of 350 bar lets the primary stage handle heavy loads without cavitation. The permissible speed spans from 200 rpm to 3000 rpm, which offers flexibility for variable-speed drives. Connection is made through an SAE high-pressure flange to secure the high flow, while an SAE two-hole flange conforming to ISO 3019-1 supports the housing and maintains shaft alignment during continuous duty.
The secondary stage serves auxiliary functions that need lower flow but sustained pressure. Its displacement is 22.0 cm³ per revolution, establishing a smaller delivery volume suited to control circuits. When driven at 1450 rpm and 10 bar it outputs 31.9 l/min, sufficient for pilot valves or cooling lines. Continuous pressure capability is 180 bar, and an intermittent limit of 210 bar permits short overloads during peak demand. The allowable speed range extends from 600 rpm to 3000 rpm, so the secondary stage remains lubricated when the prime mover runs at low idle yet can keep pace with maximum shaft speed. Together, both stages provide a compact source of matched flows and pressures for complex hydraulic systems.
Technical Specifications
Direction Of Rotation
Clockwise
Primary Displacement
125.30 cm³/rev
Primary Flow At 1450 Rpm (10 Bar)
179.8 l/min
Primary Line Connection
SAE High-Pressure Flange
Primary Max Operating Pressure
350 bar
Primary Max Speed
3000 rpm
Primary Min Speed
200 rpm
Primary Mounting Flange
SAE 2-Hole (ISO 3019-1)
Pump Configuration
Tandem (2 Pumps)
Secondary Continuous Pressure
180 bar
Secondary Displacement
22.0 cm³/rev
Secondary Flow At 1450 Rpm (10 Bar)
31.9 l/min
Secondary Intermittent Pressure
210 bar
Secondary Max Speed
3000 rpm
Secondary Min Speed
600 rpm
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