Product Overview
The Rexroth DBW 20 B2-5X 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 pilot-operated pressure relief cartridge with a directional solenoid pilot valve, enabling both continuous pressure regulation and remote electrical venting of the main stage. The DBW 20 B2-5X is engineered for high-pressure industrial systems where reliable overpressure protection and controlled depressurization are critical. Its robust construction and proven spool-and-poppet pilot architecture deliver stable pressure control, fast response to electrical signals, and long service life in demanding continuous-duty applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pilot-Operated Pressure Relief Valve with Solenoid Control |
| Model Designation | DBW 20 B2-5X |
| Nominal Size (NG) | NG20 (DIN 24340 / ISO 6264 mounting pattern) |
| Operating Pressure | Up to 315 bar (standard industrial grade, pressure adjustment dependent) |
| Pressure Adjustment Range | B2 pressure stage — adjustable via set screw, typical range up to 315 bar |
| Solenoid Actuation | Directional solenoid pilot valve for electrical unloading / venting of main stage |
| Mounting & Connection | Subplate mounting per ISO 6264 / DIN 24340, NG20 interface |
| Series | 5X (component series 50–59, installation and connection dimensions unchanged) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP) per DIN 51524 |
| Seal Material | NBR (standard); FKM available for elevated temperature service |
Engineering Features & Advantages
- Precision Pressure Control: Pilot-operated main stage with a balanced poppet design delivers accurate, repeatable pressure limitation with minimal hysteresis and stable operation across the full adjustment range.
- Solenoid-Controlled Unloading: Integrated directional solenoid pilot valve enables rapid electrical venting of the main stage, allowing remote depressurization and system unloading without manual intervention.
- Fast Response Dynamics: Optimized pilot flow paths and low-inertia solenoid armature ensure quick opening and closing transitions, protecting downstream components from pressure spikes.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- 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
Its robust construction and proven spool-and-poppet pilot architecture deliver stable pressure control, fast response to electrical signals, and long service life in demanding continuous-duty applications.
PRODUCT IMAGES
REXROTH DBW 20 B2-5X 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 Solenoid Operated Pressure Relief Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.