Product Overview
The Rexroth 4WE10JA50/EG24N9K4/M (Material Number R901278782) is a high-performance direct-operated solenoid directional control valve from the renowned Rexroth 4WE10 series. Engineered for precise control of start, stop, and direction of hydraulic fluid flow, this 4-way, 3-position valve features a J-type spool configuration and is actuated by a wet-pin AC/DC solenoid with a nominal voltage of 24V DC. The “N9” designation indicates the presence of a concealed manual override, while the “K4” suffix denotes an ISO 4401-05 (NG10 / CETOP 5) standard mounting interface with a spring return and detent mechanism. This valve is a critical component in industrial hydraulic systems requiring reliable, repeatable directional control of actuators, cylinders, and motors.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Control Valve (4-Way, 3-Position) |
| Model Designation | 4WE10JA50/EG24N9K4/M / R901278782 |
| Series | Rexroth 4WE10 Series (Size 10 / NG10 / CETOP 5) |
| Spool Type | Type J (Closed Center, All Ports Blocked in Neutral) |
| Actuation | Solenoid Actuated, Spring Return / Detent |
| Solenoid Voltage | 24V DC (EG24) |
| Manual Override | Concealed Manual Override (N9) |
| Operating Pressure | Up to 350 bar (P, A, B ports); 210 bar (T port) |
| Nominal Flow Rate | Up to 120 L/min (dependent on spool position and pressure differential) |
| Mounting & Connection | ISO 4401-05-04-0-05 / CETOP 5 / NG10 Subplate Mounting |
| Hydraulic Fluid | Mineral Oil (HL, HLP) per DIN 51524; Viscosity Range 10–800 mm²/s |
Engineering Features & Advantages
- Precision Performance: The integrated solenoid Actuated, Spring Return / Detent ensures precise, repeatable control with low hysteresis and stable performance 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 up to 350 bar and flow rates up to 120 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is a critical component in industrial hydraulic systems requiring reliable, repeatable directional control of actuators, cylinders, and motors.
PRODUCT IMAGES

Rexroth 4WE10JA50/EG24N9K4/M / R901278782 Solenoid Directional Control Valve
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WE10JA50/EG24N9K4/M / R901278782 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a 4-way, spring-centered design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.