Product Overview
The Rexroth PGH4-21/050RE11VU2 (Material Number: R900932159) is a high-performance internal gear pump engineered by Bosch Rexroth for demanding industrial hydraulic systems. Operating on the proven internal gear principle, this fixed-displacement pump features a pinion gear driving an internally toothed ring gear, with a crescent-shaped filler piece separating the suction and pressure chambers. This design delivers exceptionally smooth, low-pulsation flow with minimal noise emission, making it ideal for applications where quiet operation and precise volumetric consistency are critical. The PGH4 series is a direct-fit, drop-in replacement for the widely used PGH4 internal gear pump family, offering reliable performance in continuous-duty industrial circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Internal Gear Pump (Hydraulic Gear Pump) |
| Model Designation | PGH4-21/050RE11VU2 |
| Material Number | R900932159 |
| Series | PGH4 (Internal Gear Pump Series) |
| Displacement | Approx. 50 cm³/rev (nominal size 050) |
| Operating Pressure | Continuous up to 210 bar; peak up to 250 bar (standard industrial grade) |
| Mounting & Connection | Standard ISO / Rexroth flange interface; SAE or DIN port connections |
| Drive Shaft | Cylindrical or splined shaft (per model code RE11 configuration) |
| Rotation Direction | Clockwise (standard, verify per suffix code) |
| Sealing Material | NBR / FKM (dependent on fluid compatibility) |
Engineering Features & Advantages
- Precision Internal Gear Performance: The pinion and internal ring gear mesh with a crescent filler piece to produce smooth, low-pulsation flow with excellent volumetric efficiency and minimal noise — ideal for noise-sensitive industrial environments.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened gear surfaces and a robust casing designed to withstand high radial and axial loads.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth PGH4 standards, ensuring drop-in installation without modification to existing hydraulic circuits.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The PGH4 series is a direct-fit, drop-in replacement for the widely used PGH4 internal gear pump family, offering reliable performance in continuous-duty industrial circuits.
PRODUCT IMAGES
Rexroth PGH4-21/050RE11VU2 / R900932159 Internal Gear Pump
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Rexroth PGH4-21/050RE11VU2 / R900932159 Internal Gear Pump. This Germany-made high-pressure hydraulic component features a fixed displacement internal gear design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.