Product Overview
The Rexroth 4WRZE32W9-520-73/6EG24N9EK31/F1D3M (material number R900392841) is a pilot-operated, two-stage proportional directional valve with electrical position feedback on the main spool. As part of the Rexroth 4WRZE series, this valve is designed for continuous, high-dynamic control of flow direction and flow magnitude in industrial hydraulic systems. The valve operates on a proven proportional solenoid principle: a pilot stage with a proportional solenoid controls the pilot pressure acting on both ends of the main spool, while an integrated position transducer (LVDT) continuously monitors main spool position and closes the control loop via the associated valve amplifier. The size 32 (NG32) main stage, combined with a nominal flow capacity of 520 L/min at a 10 bar pressure drop per land, makes this valve suitable for demanding applications requiring precise, repeatable actuation of large hydraulic actuators. The 4WRZE design is a direct, drop-in replacement for original Rexroth proportional directional valves, ensuring full dimensional and functional compatibility with existing manifolds and control electronics.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, Two-Stage) |
| Model Designation | 4WRZE32W9-520-73/6EG24N9EK31/F1D3M |
| Material Number | R900392841 |
| Valve Size | NG32 (Size 32) |
| Spool Type / Configuration | W9 — Proportional spool with position feedback, closed-center (fail-safe) configuration |
| Nominal Flow Rate | 520 L/min at Δp = 10 bar per land |
| Operating Pressure | Up to 350 bar (main stage, standard industrial grade) |
| Pilot Pressure | Internal or external pilot supply, dependent on system configuration |
| Solenoid Voltage | 24 V DC (EG24) |
| Electrical Connection | N9 — Standard industrial connector with integrated position feedback (LVDT) |
| Feedback / Control | EK31 — Integrated position transducer for closed-loop spool position control |
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: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- 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 350 bar and flow rates up to 520 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The size 32 (NG32) main stage, combined with a nominal flow capacity of 520 L/min at a 10 bar pressure drop per land, makes this valve suitable for demanding applications requiring precise, repeatable actuation of large hydraulic actuators.
PRODUCT IMAGES
REXROTH 4WRZE32W9-520-73/6EG24N9EK31/F1D3M / R900392841 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 4WRZE32W9-520-73/6EG24N9EK31/F1D3M / R900392841 High-Response Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a high-response pilot stage, delivering leak-free, reliable fluid control for heavy-duty industrial systems.