Product Overview
The Rexroth 4WRZE 10 W8-50-73/6EG24N9EK31/F1D3V (Material Number: R900949749) is a high-performance, pilot-operated proportional directional valve designed for precise control of flow direction and magnitude in demanding industrial hydraulic systems. Manufactured by Bosch Rexroth, this valve features a size 10 (NG10) four-way, three-position spool design with integrated position feedback and an onboard digital amplifier (OBE). The 4WRZE series utilizes a proportional solenoid to actuate the main spool, enabling infinitely variable directional control and smooth velocity regulation of hydraulic actuators. With a rated flow capacity of approximately 50 L/min at a 10 bar pressure drop per land, this valve is engineered for applications requiring high dynamic response, excellent repeatability, and low hysteresis. The integrated electronics (6EG24N9EK31) provide a 24 VDC supply with a command signal interface, simplifying system integration and eliminating the need for external amplification. The F1D3V designation indicates a specific spool overlap and flow characteristic optimized for precise position and velocity control in closed-loop applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, 4-Way, 3-Position) |
| Model Designation | 4WRZE 10 W8-50-73/6EG24N9EK31/F1D3V |
| Material Number | R900949749 |
| Size / Nominal Diameter | NG10 (Size 10) per ISO 4401 / CETOP 5 |
| Operating Pressure | Up to 315 bar (system pressure); pilot pressure up to 315 bar |
| Rated Flow | Approx. 50 L/min at Δp = 10 bar per land |
| Spool Type | W8-50-73 (progressive flow characteristic, specific overlap) |
| Actuation | Proportional solenoid with integrated digital amplifier (OBE) |
| Electrical Supply | 24 VDC (nominal), 6EG24N9EK31 configuration |
| Command Signal | Analog ±10 V or 4–20 mA (configurable via integrated electronics) |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid with integrated digital amplifier (OBE) ensures precise, repeatable control with low hysteresis and stable performance across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 50 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The F1D3V designation indicates a specific spool overlap and flow characteristic optimized for precise position and velocity control in closed-loop applications.
PRODUCT IMAGES
Rexroth 4WRZE 10 W8-50-73/6EG24N9EK31/F1D3V / R900949749 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 W8-50-73/6EG24N9EK31/F1D3V / R900949749 High-Response Solenoid Directional Valve. This Germany-made 24V DC hydraulic component features a high-response pilot control, delivering leak-free, reliable fluid control for heavy-duty industrial systems.