Product Overview
The Rexroth DBW 20 B2-52/315U6EG24N9K4 is a pilot-operated, solenoid-controlled pressure relief valve designed for precise system pressure limitation and electrical unloading in industrial hydraulic circuits. Part of the renowned Rexroth DBW series, this valve combines a main pressure relief stage with a directional solenoid pilot valve, enabling both continuous pressure regulation and remote electrical venting of the system. The valve operates on a balanced piston principle, where system pressure acts against a spring-loaded pilot poppet; when the set pressure is reached, the pilot stage opens, causing the main spool to shift and divert excess flow to the tank. The integrated solenoid (EG24 = 24 V DC) allows the valve to be electrically unloaded or switched between pressure settings, making it ideal for high-pressure industrial applications requiring reliable, repeatable pressure control up to 315 bar.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Solenoid Operated Pressure Relief Valve) |
| Model Designation | DBW 20 B2-52/315U6EG24N9K4 |
| Operating Pressure | Up to 315 bar (rated pressure) |
| Mounting & Connection | Subplate mounting, ISO 6264 / DIN 24340 (NG20 interface) |
| Actuation | Solenoid pilot valve (24 V DC, EG24) |
| Adjustment Type | Adjustable pressure setting via spring-loaded pilot stage |
| Nominal Size | NG20 (DIN 24340 / ISO 6264) |
| Seal Material | N9 (NBR, suitable for mineral oil-based hydraulic fluids) |
Engineering Features & Advantages
- Precision Performance: Pilot-operated design ensures accurate and stable pressure limitation with minimal hysteresis, even under fluctuating flow conditions.
- Electrical Unloading: Integrated 24 V DC solenoid allows remote electrical unloading or switching between pressure settings, enhancing system flexibility and energy efficiency.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and high-quality sealing for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification.
- Versatile Pressure Control: Adjustable pressure range up to 315 bar, suitable for a wide variety of high-pressure hydraulic systems.
Typical Industrial Applications
This valve is commonly used in plastic injection molding machines, metallurgical presses, hydraulic power units, and CNC machine tools where precise pressure control and electrical unloading are critical. It is also found in marine and offshore hydraulic systems, construction machinery, and test stands requiring reliable overpressure protection and remote pressure switching.
PRODUCT IMAGES
REXROTH DBW 20 B2-52/315U6EG24N9K4 Solenoid 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 DBW 20 B2-52/315U6EG24N9K4 Solenoid Operated 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.