Product Overview
The Rexroth 4WE 6 D73-62/EG24N9K4/A12 (Material No. R900546257) is a direct-operated, solenoid-actuated directional spool valve from the proven Rexroth 4WE 6 series. Designed for the control of start, stop, and direction of fluid flow in industrial hydraulic systems, this valve features a 3-position, 4-way (4/3) spool configuration with a “D” type center condition (closed center, all ports blocked in the neutral position). The valve is actuated by a high-performance wet-pin AC/DC solenoid on one side (single solenoid, spring return) operating at 24 V DC nominal voltage, with the designation “EG24” indicating the solenoid voltage and “N9” denoting the standard manual override. The “K4” suffix identifies the ISO 4401-03 (CETOP 3 / NG6) standard mounting interface, ensuring drop-in compatibility with a vast range of industrial manifolds and subplates. With a maximum operating pressure of 350 bar and a nominal flow capacity of up to 60 L/min, this valve delivers precise, repeatable directional control for demanding industrial duty cycles.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Spool Valve (4/3 Way, Direct-Operated) |
| Model Designation | 4WE 6 D73-62/EG24N9K4/A12 |
| Material Number | R900546257 |
| Spool Type / Center Condition | Type “D” — Closed Center (P, A, B, T blocked in neutral) |
| Number of Positions | 3 Positions (Spring-Centered Neutral) |
| Actuation Type | Single Wet-Pin Solenoid, Spring Return |
| Solenoid Voltage | 24 V DC (EG24 designation) |
| Manual Override | Standard N9 (detent-type, concealed) |
| Operating Pressure | Up to 350 bar (P, A, B ports); 160 bar max at T port |
| Nominal Flow Rate | Up to 60 L/min (at Δp = 5 bar per path) |
| Mounting & Connection | ISO 4401-03 |
Engineering Features & Advantages
- Precision Performance: The solenoid directional spool valve (4/3 way, direct-operated) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- 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 standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 350 bar and flow rates up to 60 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a maximum operating pressure of 350 bar and a nominal flow capacity of up to 60 L/min, this valve delivers precise, repeatable directional control for demanding industrial duty cycles.
PRODUCT IMAGES

REXROTH 4WE 6 D73-62/EG24N9K4/A12 / R900546257 Solenoid Directional Spool Valve
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Shop the genuine REXROTH 4WE 6 D73-62/EG24N9K4/A12 / R900546257 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a 4/3-way design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.