Product Overview
The Rexroth 4WRTE27W8-500L-46/6EG24K31/A1M (Material Number: R900977344) is a high-performance, pilot-operated proportional directional valve designed for precise control of flow direction and magnitude in demanding industrial hydraulic systems. Featuring a four-way, three-position spool configuration with integrated position feedback, this valve delivers exceptional dynamic response and repeatability. The “W8” spool type provides a specific metering characteristic optimized for smooth velocity control of actuators, while the “500L” designation indicates a nominal flow capacity of 500 L/min at a 10 bar pressure drop per land. The integrated digital amplifier (type 4WRTE) with ±10 V or 4–20 mA command interface ensures precise electrical actuation via dual proportional solenoids, enabling seamless integration into modern closed-loop control architectures. Manufactured by Bosch Rexroth, this valve is a direct-fit replacement for OEM systems requiring reliable, high-resolution hydraulic motion control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, 4-Way, 3-Position) |
| Model Designation | 4WRTE27W8-500L-46/6EG24K31/A1M / R900977344 |
| Spool Type | W8 – Progressive flow characteristic with fine metering at low signal |
| Nominal Flow Rate | 500 L/min (at Δp = 10 bar per land) |
| Operating Pressure | Up to 350 bar (working ports); pilot pressure up to 315 bar |
| Actuation | Dual proportional solenoids with integrated position feedback (LVDT) |
| Electrical Interface | 24 V DC solenoid; command signal ±10 V or 4–20 mA; enable input |
| Mounting & Connection | ISO 4401-08 (NG25) subplate mounting; DIN 24 V connector |
| Seal Material | NBR (Buna-N) – compatible with mineral oil-based hydraulic fluids |
| Filtration Requirement | ISO 4406 class 18/16/13 or better (β10 ≥ 75) |
Engineering Features & Advantages
- Precision Performance: The W8 spool profile delivers progressive flow characteristics with excellent resolution at low command signals, enabling smooth acceleration and deceleration of heavy loads without shock or vibration.
- 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
Manufactured by Bosch Rexroth, this valve is a direct-fit replacement for OEM systems requiring reliable, high-resolution hydraulic motion control.
PRODUCT IMAGES
REXROTH 4WRTE27W8-500L-46/6EG24K31/A1M / R900977344 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 4WRTE27W8-500L-46/6EG24K31/A1M / R900977344 High-Response Solenoid Directional Valve. This Germany-made hydraulic component features a high-response pilot control, delivering leak-free, reliable fluid control for heavy-duty industrial systems.