Product Overview
The Rexroth DBW 10 B2-52/100U6EG24N9K4 (Material Number R900917679) 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 circuits. This valve combines a pilot-operated pressure relief cartridge with a directional solenoid pilot valve, enabling two-stage pressure control: the main stage limits maximum system pressure via an adjustable pilot spring, while the integrated solenoid pilot valve allows remote electrical selection between pressure-holding and unloaded (depressurized) operation. With a nominal size of NG10 (size 10) and a pressure rating of 100 bar, this valve is engineered for reliable, low-leakage performance in demanding continuous-duty hydraulic power units, manifolds, and safety circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Solenoid Operated Pressure Relief Valve (Pilot-Operated) |
| Model Designation | DBW 10 B2-52/100U6EG24N9K4 / R900917679 |
| Nominal Size | NG10 (Size 10) — ISO 4401 / CETOP 5 mounting pattern |
| Pressure Rating | 100 bar (adjustable pilot pressure setting) |
| Solenoid Voltage | 24 V DC (EG24 designation) |
| Solenoid Type | Wet-pin DC solenoid, N9 design (high-performance, oil-immersed armature) |
| Electrical Connection | K4 — DIN EN 175301-803 (ISO 4400) plug connector, 3-pole + PE |
| Adjustment Element | B2 — Hex socket adjustment screw with lock nut, protected adjustment |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 interface, 4-port manifold pattern |
| Operating Principle | Pilot-operated relief with solenoid pilot valve for electrical unloading (2-stage) |
| Hydraulic Fluid | Mineral oil based hydraulic fluid per DIN 51524 (HL, HLP); ISO VG 32–68 typical |
Engineering Features & Advantages
- Precision Performance: The hydraulic valve — solenoid operated pressure relief valve (pilot-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- 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.
- Rated Capability: Rated for pressure ratings of 100 bar (adjustable pilot pressure setting), supporting stable operation across the full working range.
Typical Industrial Applications
The Rexroth DBW 10 B2-52/100U6EG24N9K4 (Material Number R900917679) 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 circuits.
PRODUCT IMAGES

REXROTH DBW 10 B2-52/100U6EG24N9K4 / R900917679 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 10 B2-52/100U6EG24N9K4 / R900917679 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.