Product Overview
The Rexroth DBW 10 A2-53/50-6EG24N9K4 (Material No. R900731666) is a pilot-operated, solenoid-controlled pressure relief valve from the proven Rexroth DBW series. It is designed as a normally closed pressure control valve that limits system pressure and provides electrical unloading of a hydraulic circuit via a directional seated solenoid valve. The main valve stage operates on a balanced piston (spool) principle, with the pilot stage controlling the opening of the main poppet against the adjustable spring setting. The integrated 6EG24N9K4 solenoid (24 V DC, high-power wet-pin design) enables remote electrical selection between pressure-limiting and unloading functions. With a size 10 (NG10) mounting interface to ISO 6264 / DIN 24340, this valve is a direct-fit, drop-in replacement for OEM installations and is engineered for continuous duty in demanding industrial power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Solenoid Operated Pressure Relief Valve (Pilot-Operated, Pressure Control) |
| Model Designation | DBW 10 A2-53/50-6EG24N9K4 |
| Material / Order Number | R900731666 |
| Size / Nominal Diameter | NG10 (Size 10) per ISO 6264 / DIN 24340 |
| Pressure Adjustment Range | Up to 50 bar (adjustable spring stage, code “50”) |
| Solenoid Actuation | 24 V DC wet-pin directional seated solenoid, high-power design (code 6EG24N9K4) |
| Operating Pressure | Standard Industrial Grade (up to rated bar, per Rexroth DBW series data) |
| Mounting & Connection | Subplate mounting, ISO 6264 / DIN 24340 NG10 interface, 4-way port pattern (P, T, A, B) |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP) per DIN 51524 |
Engineering Features & Advantages
- Precision Pressure Control: Pilot-operated balanced piston design delivers accurate, repeatable pressure limiting with minimal hysteresis and stable performance across the full adjustment range.
- Electrical Unloading Function: The integrated 24 V DC solenoid allows remote switching between pressure-holding and depressurized (unloaded) states, ideal for energy-saving pump start/stop and accumulator circuits.
- 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
With a size 10 (NG10) mounting interface to ISO 6264 / DIN 24340, this valve is a direct-fit, drop-in replacement for OEM installations and is engineered for continuous duty in demanding industrial power units.
PRODUCT IMAGES


REXROTH DBW 10 A2-53/50-6EG24N9K4 / R900731666 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DBW 10 A2-53/50-6EG24N9K4 / R900731666 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.