Product Overview
The Rexroth 4WRZE 10 W6-85-73/6EG24N9ETK31/A1D3M (Material Number R900765029) is a high-response, pilot-operated proportional directional valve designed for precise control of flow direction and magnitude in industrial hydraulic systems. Featuring a size 10 (NG10) four-way spool design with integrated position feedback, this valve delivers exceptional dynamic response and repeatability for demanding motion control applications. The “W6” spool type provides a specific metering characteristic optimized for smooth velocity transitions, while the integrated OBE (On-Board Electronics) amplifier with ±10 V or 4–20 mA command interface eliminates the need for external control cards. As a core component in Rexroth’s proportional valve portfolio, the 4WRZE series is engineered for continuous duty in high-cycle industrial environments where precise actuator positioning and force control are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, 4-Way) |
| Model Designation | 4WRZE 10 W6-85-73/6EG24N9ETK31/A1D3M |
| Material Number | R900765029 |
| Size / Nominal Diameter | NG10 (Size 10) |
| Spool Type | W6 — Progressive flow characteristic with defined overlap |
| Nominal Flow Rate | 85 L/min at Δp = 10 bar per land |
| Operating Pressure | Up to 315 bar (system); pilot pressure 25–315 bar |
| Actuation | Proportional solenoid with integrated OBE electronics |
| Electrical Command Signal | ±10 V DC or 4–20 mA (configurable) |
| Solenoid Voltage | 24 V DC (EG24) |
| Electrical Connector | K31 — Component plug, 6-pole + PE |
| Seal Material | N9 — NBR (Nitrile) for mineral oil |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid with integrated OBE electronics ensures precise, repeatable control with low hysteresis and stable performance 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 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 85 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
As a core component in Rexroth’s proportional valve portfolio, the 4WRZE series is engineered for continuous duty in high-cycle industrial environments where precise actuator positioning and force control are critical.
PRODUCT IMAGES

Rexroth 4WRZE 10 W6-85-73/6EG24N9ETK31/A1D3M / R900765029 Proportional Directional 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 4WRZE 10 W6-85-73/6EG24N9ETK31/A1D3M / R900765029 Solenoid Directional Control Valve. This Germany-made hydraulic component features a high-response pilot stage, delivering leak-free, reliable fluid control for heavy-duty industrial systems.