Product Overview
The Rexroth 4WRZE25W8-325-73/6EG24N9EK31/A1D3M (material number R900750126) is a high-response, pilot-operated proportional directional valve from the Rexroth WRZE series. It is designed to control the direction and magnitude of hydraulic flow in proportion to an electrical input signal, making it a core component in closed-loop and open-loop motion control systems. The valve features a size 25 (NG25) main stage with a 4-way, 3-position spool configuration (W8 spool type), a rated flow capacity of approximately 325 L/min at a 10 bar pressure differential per land, and an integrated pilot stage. The “6EG24” designation indicates a 24 V DC proportional solenoid with a nominal current of 6 A, while the “N9” suffix denotes a concealed manual override. The “EK31” and “A1D3M” suffixes specify the electrical connector type and the amplifier/control electronics interface respectively. This valve is engineered for precise, dynamic control of actuator position, velocity, and force in demanding industrial applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated) |
| Model Designation | 4WRZE25W8-325-73/6EG24N9EK31/A1D3M |
| Material Number | R900750126 |
| Valve Size | NG25 (Size 25) |
| Spool Type | W8 (4-way, 3-position, closed-center) |
| Rated Flow | 325 L/min (at Δp = 10 bar per land) |
| Operating Pressure | Up to 350 bar (main stage); pilot stage up to 315 bar |
| Solenoid Voltage | 24 V DC (nominal) |
| Solenoid Current | 6 A (nominal) |
| Electrical Connector | EK31 (component plug, 3-pole + PE) |
| Manual Override | N9 (concealed, detent-free) |
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: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
- Rated Capability: Rated for pressure ratings up to 350 bar and flow rates up to 325 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is engineered for precise, dynamic control of actuator position, velocity, and force in demanding industrial applications.
PRODUCT IMAGES





REXROTH 4WRZE25W8-325-73/6EG24N9EK31/A1D3M / R900750126 Proportional Directional Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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Shop the genuine REXROTH 4WRZE25W8-325-73/6EG24N9EK31/A1D3M / R900750126 High-Response Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a high-response pilot stage, delivering leak-free, reliable fluid control for heavy-duty industrial systems.