Product Overview
The Rexroth 4WRZ 10 W6-85-71/6EG24N9ETK4/D3M (Material Number R900704206) is a pilot-operated, two-stage proportional directional valve with electrical position feedback, designed for precise control of flow direction and magnitude in industrial hydraulic systems. The valve utilizes a high-response proportional solenoid pilot stage acting on a main spool, delivering infinitely variable directional control proportional to the electrical command signal. With a nominal size of NG10 (size 10) and a rated flow of 85 L/min at a 71 bar pressure differential, this valve is engineered for demanding applications requiring smooth, accurate actuator velocity control, fast response, and excellent repeatability. The integrated position feedback of the main spool ensures high control accuracy and dynamic performance, making it a preferred solution for closed-loop motion control in heavy-duty industrial machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, Two-Stage) |
| Model Designation | 4WRZ 10 W6-85-71/6EG24N9ETK4/D3M |
| Material Number | R900704206 |
| Nominal Size | NG10 (Size 10) |
| Spool Type / Flow Characteristic | W6 — Progressive flow characteristic, symmetrical spool |
| Rated Flow | 85 L/min at Δp = 71 bar per land |
| Operating Pressure | Up to 315 bar (system pressure, port P/A/B); pilot pressure up to 315 bar |
| Pilot Stage Actuation | Proportional solenoid, 24 V DC (EG24), with integrated position feedback |
| Electrical Connection | Component plug, 6-pole + PE (N9), with integrated electronics (ETK4) |
| Feedback / Control | Main spool position feedback via inductive displacement transducer; closed-loop control |
| Mounting & Connection | Subplate mounting, ISO 4401-05 / CETOP 5 / NG10 interface |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (pilot-operated, two-stage) delivers precise, repeatable performance with low hysteresis and stable control 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: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
- 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
The integrated position feedback of the main spool ensures high control accuracy and dynamic performance, making it a preferred solution for closed-loop motion control in heavy-duty industrial machinery.
PRODUCT IMAGES
REXROTH 4WRZ 10 W6-85-71/6EG24N9ETK4/D3M / R900704206 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 4WRZ 10 W6-85-71/6EG24N9ETK4/D3M / R900704206 Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.