Product Overview
The Rexroth 4WRTE25W8-220L-46/6EG24K31/A1M (Material Number R901093690) is a high-performance, pilot-operated proportional directional valve with integrated position feedback and electrical position transducer. Part of the renowned Rexroth 4WRTE series, this valve is engineered for precise, continuous control of flow direction and magnitude in demanding industrial hydraulic systems. The “W8” spool designation provides a specific flow metering characteristic optimized for smooth velocity control, while the “220L” indicates a nominal flow capacity of 220 L/min at a 10 bar pressure drop per land. The integrated OBE (On-Board Electronics) with a 24 VDC supply and K31 electrical interface ensures accurate, repeatable spool positioning, making it ideal for closed-loop applications requiring high dynamic response and excellent repeatability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, with Position Feedback) |
| Model Designation | 4WRTE25W8-220L-46/6EG24K31/A1M / R901093690 |
| Nominal Flow Rate | 220 L/min at Δp = 10 bar per metering land |
| Operating Pressure | Up to 350 bar (P, A, B ports); 315 bar (T port) – Standard Industrial Grade |
| Spool Type | W8 – Progressive flow characteristic with fine metering in center range |
| Actuation | Proportional solenoid with integrated OBE (On-Board Electronics) and inductive position transducer |
| Electrical Supply | 24 VDC (nominal), K31 connector – 6-pin + PE |
| Control Signal | ±10 V or 4–20 mA (factory configurable via OBE) |
| Mounting & Connection | ISO 4401-08-09-0-94 (NG25) subplate mounting; ISO 6264 port pattern |
| Filtration Requirement | ISO 4406 (c) 18/16/13 or better (β10 ≥ 75) |
| Seal Material | NBR (standard); FKM available on request |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid with integrated OBE (On-Board Electronics) and inductive position transducer ensures precise, repeatable control with low hysteresis and stable performance 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: 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 350 bar and flow rates up to 220 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The integrated OBE (On-Board Electronics) with a 24 VDC supply and K31 electrical interface ensures accurate, repeatable spool positioning, making it ideal for closed-loop applications requiring high dynamic response and excellent repeatability.
PRODUCT IMAGES
REXROTH 4WRTE25W8-220L-46/6EG24K31/A1M / R901093690 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 4WRTE25W8-220L-46/6EG24K31/A1M / R901093690 High-Response Solenoid Directional Valve. This Germany-made 220V hydraulic component features a high-response pilot control, delivering leak-free, reliable fluid control for heavy-duty industrial systems.