Product Overview
The Rexroth 4WRZE10W8-85-73/6EG24N9K31/F1D3M (material number R901094002) is a pilot-operated, two-stage proportional directional valve from the Rexroth WRZE series, designed for continuous, high-resolution control of flow direction and flow magnitude in industrial hydraulic systems. The valve combines a pilot stage equipped with a proportional solenoid and a main stage spool that is positioned hydraulically, delivering smooth, stepless actuation proportional to the electrical command signal. With an NG10 (size 10) nominal bore and a rated flow of approximately 85 L/min at a 10 bar (Δp) valve pressure drop, this valve is engineered for precise velocity, acceleration, and position control of hydraulic actuators in demanding closed-loop and open-loop applications. The integrated on-board electronics (OBE) with a ±10 V or 4–20 mA command interface, together with a spring-centered main spool, ensures repeatable, hysteresis-optimized performance and safe fail-safe behavior upon loss of signal.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (pilot-operated, two-stage) |
| Model Designation | 4WRZE10W8-85-73/6EG24N9K31/F1D3M |
| Material Number | R901094002 |
| Nominal Size | NG10 (Size 10) per ISO 4401 / DIN 24340 |
| Spool Type / Flow Characteristic | W8 spool, progressive flow characteristic |
| Rated Flow | ≈ 85 L/min at Δp = 10 bar per metering edge |
| Operating Pressure | Up to 315 bar (main stage, P/A/B ports); pilot pressure per Rexroth specification |
| Actuation | Proportional solenoid, pilot-operated with hydraulic main spool positioning |
| Solenoid Voltage | 24 V DC (EG24) |
| Electrical Interface | Integrated on-board electronics (OBE), command value ±10 V / 4–20 mA |
| Seal / Design Variant | N9 (NBR seals), K31 (design series), F1D3M (feedback / spool position variant)</td |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid, pilot-operated with hydraulic main spool positioning 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 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 85 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With an NG10 (size 10) nominal bore and a rated flow of approximately 85 L/min at a 10 bar (Δp) valve pressure drop, this valve is engineered for precise velocity, acceleration, and position control of hydraulic actuators in demanding closed-loop and open-loop applications.
PRODUCT IMAGES
Rexroth 4WRZE10W8-85-73/6EG24N9K31/F1D3M / R901094002 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WRZE10W8-85-73/6EG24N9K31/F1D3M / R901094002 Solenoid Operated Directional Valve. This Germany-made 24V DC hydraulic component features a high-performance spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.