Product Overview
The Rexroth DBW 20 B2-5X/350U6EG24N9K4 (Material No. R900977675) is a pilot-operated, solenoid-controlled pressure relief valve from the proven DBW series, size NG20 (nominal bore 20). It functions as a two-stage pressure control valve in which a direct-acting pilot stage commands a main poppet/spool stage, providing precise system pressure limitation and safe unloading of hydraulic circuits. The integrated directional solenoid allows the valve to be electrically switched between pressure-relief mode and unloaded circulation mode, making it a combined pressure and directional control element for demanding industrial power units. The “5X” designation identifies the current series with standardized, interchangeable mounting dimensions, ensuring drop-in compatibility with existing Rexroth installations.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pilot-Operated Solenoid Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBW 20 B2-5X/350U6EG24N9K4 |
| Material Number | R900977675 |
| Nominal Size | NG20 (Size 20, ISO 6264 mounting pattern) |
| Pressure Adjustment Range | Up to 350 bar (adjustment element “350”) |
| Operating Pressure | Standard Industrial Grade (rated to 350 bar) |
| Solenoid Voltage | 24 V DC (EG24 high-performance wet-pin solenoid) |
| Electrical Connection | N9 — standard DIN EN 175301-803 (ISO 4400) connector, K4 designation |
| Mounting & Connection | Subplate mounting, ISO 6264 / Manufacturer Interface |
| Working Principle | Pilot-operated two-stage; solenoid-controlled unloading |
Engineering Features & Advantages
- Precision Pressure Limiting: The pilot stage provides accurate, low-hysteresis pressure control, maintaining stable system pressure even under fluctuating flow and load conditions.
- Solenoid-Controlled Unloading: The EG24 directional solenoid enables electrical switching between pressure-relief and unloaded circulation, allowing energy-efficient pump off-loading during idle cycles.
- High-Pressure Capability: Rated for continuous operation up to 350 bar, suitable for high-pressure industrial power units and demanding duty cycles.
- 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 standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The integrated directional solenoid allows the valve to be electrically switched between pressure-relief mode and unloaded circulation mode, making it a combined pressure and directional control element for demanding industrial power units.
PRODUCT IMAGES
REXROTH DBW 20 B2-5X/350U6EG24N9K4 / R900977675 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 B2-5X/350U6EG24N9K4 / R900977675 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.