Product Overview
The Rexroth DBW20B2-5X/315-6EG24N9K4 (Material Number R900907684) is a pilot-operated, solenoid-controlled pressure relief valve designed for precise system pressure limitation and electrical unloading in industrial hydraulic power units. Part of the proven Rexroth DBW series (Size 20, Component Series 5X), this valve combines a pilot-operated pressure relief cartridge with a directional solenoid valve for two-stage pressure control. The main stage utilizes a balanced poppet design that responds to pilot pressure to regulate system pressure with minimal hysteresis, while the integrated solenoid pilot valve (type 6E, 24 V DC) enables electrical switching between pressure-limiting and unloading functions. The valve is engineered for subplate mounting per ISO 6264 (NG20 interface) and is widely deployed in high-pressure hydraulic circuits requiring reliable overpressure protection, remote pressure staging, or safety interlock logic.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Operated Pressure Relief Valve (Pilot-Operated) |
| Model Designation | DBW20B2-5X/315-6EG24N9K4 / R900907684 |
| Size / Nominal Diameter | NG20 (Size 20) per ISO 6264 |
| Pressure Adjustment Range | Up to 315 bar (maximum setting) |
| Solenoid Voltage | 24 V DC (type 6E solenoid) |
| Operating Pressure | Standard Industrial Grade (Up to 315 bar rated) |
| Mounting & Connection | Subplate mounting, ISO 6264 NG20 interface |
| Seal Material | N9 (NBR / Buna-N) standard industrial seals |
| Adjustment Type | Adjustable pressure setting (hex socket / hand knob per model variant) |
Engineering Features & Advantages
- Precision Performance: Pilot-operated main poppet stage delivers accurate pressure limitation with low pressure override and minimal hysteresis, ensuring stable system pressure even under varying flow demands.
- Solenoid-Controlled Unloading: The integrated 24 V DC directional solenoid valve enables electrical switching between pressure-limiting mode and depressurized circulation, supporting energy-efficient pump unloading and automated safety circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust cast housing and hardened internal components resistant to contamination and pressure spikes.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth standards, including ISO 6264 NG20 mounting pattern and R900907684 material number traceability.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
The valve is engineered for subplate mounting per ISO 6264 (NG20 interface) and is widely deployed in high-pressure hydraulic circuits requiring reliable overpressure protection, remote pressure staging, or safety interlock logic.
PRODUCT IMAGES
REXROTH DBW20B2-5X/315-6EG24N9K4 / R900907684 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 DBW20B2-5X/315-6EG24N9K4 / R900907684 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.