Product Overview
The Rexroth 4WRZE 10 W8-85-7X/6EG24N9ETK31/F1D3M (Material Number R900724781) is a pilot-operated, two-stage proportional directional valve designed for precise, continuous control of flow direction and magnitude in industrial hydraulic systems. As part of the Rexroth 4WRZE series, this valve utilizes a high-response proportional solenoid pilot stage acting on a main spool, delivering smooth, infinitely variable metering of actuator motion. With an NG10 (size 10) main stage and a nominal flow capacity of 85 L/min at a 10 bar pressure drop per land, this valve is engineered for applications demanding fast response, excellent repeatability, and low hysteresis. The integrated on-board electronics (OBE) with a 24 V DC supply and command value input of ±10 V enables direct interfacing with modern machine control systems, making it a core component in closed-loop position, velocity, and force control architectures.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, Two-Stage) |
| Model Designation | 4WRZE 10 W8-85-7X/6EG24N9ETK31/F1D3M |
| Material Number | R900724781 |
| Valve Size | NG10 (Size 10) |
| Spool Type / Flow Characteristic | W8 — Progressive flow characteristic, symmetrical spool |
| Nominal Flow Rate | 85 L/min at Δp = 10 bar per metering land |
| Operating Pressure | Up to 315 bar (P, A, B ports); pilot stage rated to 315 bar |
| Pilot Supply | Internal pilot oil supply, external pilot oil drain (ET) |
| Actuation | Proportional solenoid, single-side control (6E) |
| Electrical Supply | 24 V DC (G24) |
| Command Value Input | ±10 V DC (N9), integrated on-board electronics (OBE) |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid, single-side control (6E) 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: 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 on-board electronics (OBE) with a 24 V DC supply and command value input of ±10 V enables direct interfacing with modern machine control systems, making it a core component in closed-loop position, velocity, and force control architectures.
PRODUCT IMAGES
Rexroth 4WRZE 10 W8-85-7X/6EG24N9ETK31/F1D3M / R900724781 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 W8-85-7X/6EG24N9ETK31/F1D3M / R900724781 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.