Product Overview
The Rexroth PGH4-30/020RE11VU2 (Material Number: R900974700) 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 shaft driving an internally toothed ring gear, with a crescent-shaped filler piece separating the suction and pressure zones. 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 platform, ensuring seamless integration into existing hydraulic power units and machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Internal Gear Pump (Hydraulic Gear Pump) |
| Model Designation | PGH4-30/020RE11VU2 / R900974700 |
| Series | PGH4 (Internal Gear Pump Platform) |
| Displacement | 20 cm³/rev (nominal, per model code “020”) |
| Operating Pressure | Continuous up to 250 bar; peak pressure up to 280 bar (standard PGH4 industrial grade) |
| Speed Range | Up to 3,000 rpm (dependent on fluid viscosity and operating pressure) |
| Mounting & Connection | Standard ISO 4-bolt flange mounting; SAE / DIN port connections |
| Rotation Direction | Clockwise (standard configuration, per model code) |
| Hydraulic Fluid | Mineral oil HL/HLP per DIN 51524; viscosity range 10–300 mm²/s |
| Shaft Type | Cylindrical shaft with key (standard industrial interface) |
Engineering Features & Advantages
- Precision Internal Gear Design: The pinion shaft and internal ring gear mesh with a crescent filler piece to create a sealed, low-shear pumping chamber, delivering smooth, nearly pulsation-free flow with excellent volumetric efficiency.
- Low Noise Emission: The internal gear principle inherently reduces pressure ripple and cavitation, resulting in significantly quieter operation compared to external gear pumps — ideal for noise-sensitive industrial environments.
- Industrial Reliability: Built for continuous duty under severe industrial conditions, with hardened gear surfaces and a robust casing that withstands high pressure and thermal cycling.
- Direct Fit Replacement: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
The PGH4 series is a direct-fit, drop-in replacement for the widely used PGH4 internal gear pump platform, ensuring seamless integration into existing hydraulic power units and machinery.
PRODUCT IMAGES
Rexroth PGH4-30/020RE11VU2 / R900974700 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 PGH4-30/020RE11VU2 / R900974700 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.