PGP-2X, PGP-3X Internal meshing gear pump

Comparative analysis of Rexroth internal meshing gear pump PGP-2X and PGP-3X：
1. Displacement and flow range
PGP-2X series
Displacement range: 6.3cm3/rev to 16cm3/rev (such as PGP2-2X/006RE20VE4, PGP2-2X/016RE20VE4).
Applicable scenarios: small and medium-sized flow requirements, such as low-noise environments such as machine tools, fans, lifting devices, etc.
Flow example: Calculated at a speed of 1450rpm, the flow rate of PGP2-2X/006RE20VE4 is about 9.1 L/min, and the flow rate of PGP2-2X/016RE20VE4 is about 23.2 L/min.
PGP-3X series
Displacement range: 20cm3/rev to 32cm3/rev (such as PGP3-3X/020RE07VE4, PGP3-3X/032RE07VE4).
Applicable scenarios: large flow requirements, such as injection molding machines, construction machinery, metallurgical equipment and other high-pressure and heavy-duty environments.
Flow example: Calculated at a speed of 1450rpm, the flow rate of PGP3-3X/020RE07VE4 is about 29L/min, and the flow rate of PGP3-3X/032RE07VE4 is about 46.4 L/min.

2. Pressure level and performance
Continuous working pressure：
Both series support a continuous working pressure of 210bar to meet the needs of medium and high pressure hydraulic systems.
Peak pressure: Some models of the PGP-3X series (such as PGP3-3X/022RE20VE4) have a higher design pressure and can be customized to more than 250bar.
Efficiency and longevity：
Sealing gap compensation technology: Both series use sliding bearings and sealing gap compensation, which can maintain high efficiency (volumetric efficiency ≥95%) even in low-viscosity media.
Life: FKM seals (fluorine rubber) adapt to a wide temperature range (-20℃ to +100℃), and have a life span of more than 2 million load cycles.
PGP-3X reinforcement: The bearing design is better, can withstand higher radial forces, and is suitable for heavy-duty working conditions.

3. Speed and noise
Speed range：
PGP-2X: 600-3600rpm, can still operate efficiently in low viscosity media.
PGP-3X: 500-3000rpm, optimized performance in low-speed operating conditions, suitable for heavy-duty start-up scenarios.
Noise control：
Both series optimize the gear meshing and floating ring compensation structure to reduce vibration by more than 30% and noise ≤72dB (depending on the model).
Advantages of PGP-2X: It is more compact in size and is suitable for space-constrained scenarios (such as inside machine tools).
PGP-3X balance: Although it is larger in size, the displacement density is higher, which can reduce the number of pump sets.