Product Overview
The Rexroth DBW 20 A2-52/315-6EG24N9K4 (material number R900921754) is a pilot-operated, solenoid-controlled pressure relief valve from the proven DBW series, designed for precise system pressure limitation and electrical unloading in industrial hydraulic power units. The valve combines a main poppet-type pressure relief stage with a pilot stage that is actuated by a wet-pin DC solenoid, allowing the system pressure to be vented to tank on command or held at the preset cracking pressure. With a size 20 (NG20 / CETOP 8) mounting pattern and a pressure rating of 315 bar, this valve is engineered for high-pressure circuits requiring dependable overload protection and controlled pressure release. The integrated solenoid enables remote electrical switching of the pressure function, making the DBW 20 A2-52/315-6EG24N9K4 a standard choice for safety-related and sequence-controlled hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Solenoid Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBW 20 A2-52/315-6EG24N9K4 |
| Material Number | R900921754 |
| Nominal Size | NG20 (Size 20 / CETOP 8) |
| Operating Pressure | Up to 315 bar (pressure adjustment range 315 bar) |
| Actuation | Solenoid operated, wet-pin DC solenoid, 24 V DC (G24) |
| Electrical Connection | DIN EN 175301-803 (DIN 43650) connector, N9 designation |
| Mounting & Connection | Subplate mounting, ISO 4401 / CETOP 8 interface, 4-way porting (P, T, A, B) |
| Working Principle | Pilot-operated poppet design with solenoid unloading function |
| Hydraulic Fluid | Mineral oil based hydraulic fluid per DIN 51524 (HL, HLP) |
Engineering Features & Advantages
- Precision Pressure Control: Pilot-operated poppet stage delivers accurate, repeatable cracking pressure and stable pressure limitation across the full 315 bar range, minimizing pressure overshoot during load spikes.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
The integrated solenoid enables remote electrical switching of the pressure function, making the DBW 20 A2-52/315-6EG24N9K4 a standard choice for safety-related and sequence-controlled hydraulic systems.
PRODUCT IMAGES
Rexroth DBW 20 A2-52/315-6EG24N9K4 / R900921754 Solenoid Operated Pressure Relief Valve
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- 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Rexroth DBW 20 A2-52/315-6EG24N9K4 / R900921754 Proportional Pressure Relief Valve. This Germany-made 24 VDC hydraulic component features a piloted design with solenoid actuation, delivering leak-free, reliable fluid control for heavy-duty industrial systems.