Product Overview
The Rexroth DBEM 20-71/315YG24K4V (Material No. R901344450) is a pilot-operated proportional pressure relief valve designed for precise, continuous electro-proportional control of system pressure in industrial hydraulic circuits. Part of the Bosch Rexroth DBEM series, this valve combines a pilot-operated relief valve architecture with a proportional solenoid actuator, enabling stepless pressure adjustment proportional to the electrical command signal. The DBEM 20-71/315YG24K4V is engineered for applications requiring accurate pressure regulation, smooth ramping, and dynamic response, making it a critical control component in modern hydraulic power units, presses, and injection molding systems. With a nominal size of NG20 and a maximum pressure rating of 315 bar, this valve delivers reliable performance in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Relief Valve (Pilot-Operated) |
| Model Designation | DBEM 20-71/315YG24K4V / R901344450 |
| Nominal Size | NG20 (DIN 24340 / ISO 4401) |
| Maximum Operating Pressure | 315 bar (pilot stage) |
| Pressure Adjustment Range | Up to 315 bar, stepless proportional control |
| Actuation Type | Proportional Solenoid (24 V DC) |
| Solenoid Voltage | 24 V DC (G24 designation) |
| Electrical Connection | K4V — Component plug, DIN EN 175301-803 |
| Mounting & Connection | Subplate mounting, ISO 4401 / DIN 24340 standard interface |
| Control Signal | Analog proportional current (0–800 mA typical, via proportional amplifier) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLPD per DIN 51524) |
| Seal Material | NBR (standard); FKM available on request |
Engineering Features & Advantages
- Precision Performance: The proportional pressure relief valve (pilot-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
With a nominal size of NG20 and a maximum pressure rating of 315 bar, this valve delivers reliable performance in demanding industrial environments.
PRODUCT IMAGES

REXROTH DBEM 20-71/315YG24K4V / R901344450 Proportional 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 DBEM 20-71/315YG24K4V / R901344450 Pressure Relief Valve. This Germany-made 24V DC hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.