Product Overview
The Rexroth PR4-30/3,15-700RA01M08 is a pilot operated pressure relief valve engineered for precise system pressure limitation and overload protection in industrial hydraulic circuits. Manufactured by Bosch Rexroth, a global benchmark in hydraulic component design, this valve combines a pilot stage with a main poppet/spool stage to deliver accurate pressure control with minimal hysteresis, even at high flow rates. The PR4 series is designed to protect downstream components from pressure spikes while maintaining stable system pressure during continuous operation. With a nominal pressure setting of 700 bar and a pilot ratio designated by the 3,15 code, this valve is suited for demanding high-pressure applications where reliability and repeatability are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Pressure Relief Valve |
| Model Designation | PR4-30/3,15-700RA01M08 |
| Operating Pressure | Up to 700 bar (pressure setting code) |
| Pilot Ratio | 3,15 (pilot stage ratio) |
| Mounting & Connection | Standard ISO / Rexroth interface (cartridge or subplate configuration per RA01 code) |
| Adjustment Type | Manual adjustment (M08 designation) |
Engineering Features & Advantages
- Precision Performance: Pilot operated design ensures accurate pressure setting and low pressure override characteristics, minimizing system shock and energy loss.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction that resists contamination and wear.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in installation without modification.
- Stable Pressure Control: The 3,15 pilot ratio provides smooth, stable operation across the full flow range, reducing noise and vibration.
Typical Industrial Applications
This valve is commonly used in plastic injection molding machines, metallurgical presses, construction and marine hydraulics, and CNC machine tools where precise pressure limitation and overload protection are essential for safe and efficient operation.
PRODUCT IMAGES


REXROTH PR4-30/3,15-700RA01M08 Pilot Operated Pressure Relief Valve
⚡ 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 PR4-30/3,15-700RA01M08 / R901088622 Pilot Operated Pressure Relief Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.