Product Overview
The Rexroth 4WRAE 6 W07-2X/G24K31/F1V (Material No. R900728280) is a direct-operated, proportional directional valve from the proven Rexroth 4WRAE series, size 6 (NG6 / CETOP 3). It controls the direction and magnitude of flow in proportion to the electrical input signal supplied to its integrated proportional solenoids. The valve operates on a spool-in-sleeve principle, where the spring-centered control spool is positioned by two proportional solenoids acting against centering springs. This design delivers infinitely variable flow control with smooth, stepless transition, making it ideal for precise velocity, acceleration, and position control of hydraulic actuators in demanding industrial systems. The “W07” spool type provides a specific metering characteristic, while the “2X” series designation indicates the current component generation with established dimensional and functional interchangeability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Direct-Operated, Spool Type) |
| Model Designation | 4WRAE 6 W07-2X/G24K31/F1V |
| Material Number | R900728280 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Spool Type | W07 (proportional metering characteristic, closed-center transition) |
| Actuation | Two proportional solenoids, spring-centered, direct-operated |
| Operating Pressure | Up to 315 bar (working ports); tank port limited per manufacturer data |
| Nominal Flow | Approx. 7 L/min at 10 bar valve pressure differential (size 6 characteristic) |
| Electrical Supply | 24 V DC (G24), solenoid with integrated control electronics |
| Electrical Connection | K31 — component plug / connector per Rexroth standard |
| Seal Material | F1V — FKM (Viton) seals, suitable for mineral oil and selected phosphate ester fluids |
Engineering Features & Advantages
- Precision Performance: The integrated two proportional solenoids, spring-centered, direct-operated 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 315 bar and flow rates up to 7 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This design delivers infinitely variable flow control with smooth, stepless transition, making it ideal for precise velocity, acceleration, and position control of hydraulic actuators in demanding industrial systems.
PRODUCT IMAGES

Rexroth 4WRAE 6 W07-2X/G24K31/F1V / R900728280 Proportional Directional Valve
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Shop the genuine Rexroth 4WRAE 6 W07-2X/G24K31/F1V / R900728280 Proportional Directional Valve. This Germany-made 24 VDC hydraulic component features a direct-operated proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.