Product Overview
The Rexroth 4WRZE32W8-520-73/6EG24N9K31/A1D3M (Material Number: R900769053) is a high-performance, pilot-operated proportional directional valve manufactured by Bosch Rexroth. Engineered for precise control of flow direction and magnitude in demanding hydraulic systems, this valve features a size 32 (NG32) main stage with a 4-way, 3-position (4/3) spool configuration. The “W8” spool type provides a specific flow metering characteristic, while the integrated proportional solenoid actuation allows for infinitely variable control of actuator speed and direction. With a nominal flow capacity of 520 L/min and a maximum operating pressure of 350 bar, this valve is a critical component in high-power industrial hydraulic circuits requiring exceptional dynamic response and repeatability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated) |
| Model Designation | 4WRZE32W8-520-73/6EG24N9K31/A1D3M |
| Material Number | R900769053 |
| Valve Size | NG32 (Size 32) |
| Spool Type / Configuration | W8 Spool, 4-Way, 3-Position (4/3) |
| Nominal Flow Rate | 520 L/min (at Δp = 10 bar per land) |
| Maximum Operating Pressure | 350 bar (Ports P, A, B); 210 bar (Port T) |
| Actuation Type | Proportional Solenoid, 24 V DC (EG24) |
| Electrical Connection | Component Plug, 6-Pin (N9) |
| Mounting & Connection | Subplate Mounting, ISO 4401-08 / DIN 24340 Form NG32 |
| Seal Material | NBR (Nitrile Rubber), suitable for mineral oil-based hydraulic fluids |
Engineering Features & Advantages
- Precision Performance: The proportional directional valve (pilot-operated) delivers precise, repeatable performance with low hysteresis and stable control 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings of 350 bar (Ports P, A, B); 210 bar (Port T) and flow rates up to 520 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
With a nominal flow capacity of 520 L/min and a maximum operating pressure of 350 bar, this valve is a critical component in high-power industrial hydraulic circuits requiring exceptional dynamic response and repeatability.
PRODUCT IMAGES
Rexroth 4WRZE32W8-520-73/6EG24N9K31/A1D3M / R900769053 Proportional Directional Valve
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Shop the genuine Rexroth 4WRZE32W8-520-73/6EG24N9K31/A1D3M / R900769053 Proportional Directional Valve. This Germany-made 24 VDC hydraulic component features a high-response proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.