Product Overview
The Rexroth 4WRZE16W6-180-74/6EG24N9K31/F1D3M (Material Number R90548124) is a high-response, pilot-operated proportional directional valve from the Rexroth WRZE series, size NG16 (Cetop 7 / ISO 4401-07). It functions as a continuous, infinitely variable directional control element that regulates both flow direction and flow magnitude in proportion to an electrical command signal. The valve utilizes a two-stage design in which a proportional pilot valve actuates the main spool, delivering high flow capacity with fast, precise response. Integrated position feedback of the main spool ensures accurate, repeatable metering of actuator motion, making this valve a core control component in demanding industrial hydraulic systems requiring smooth acceleration, deceleration, and load-independent velocity control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, Two-Stage) |
| Model Designation | 4WRZE16W6-180-74/6EG24N9K31/F1D3M |
| Material Number | R90548124 |
| Nominal Size | NG16 (ISO 4401-07 / Cetop 7) |
| Spool Type / Function | W6 — Proportional spool with position feedback, closed-center metering |
| Nominal Flow (Δp = 10 bar) | 180 L/min |
| Operating Pressure | Up to 315 bar (P, A, B ports); pilot stage rated accordingly |
| Actuation | Proportional solenoid, 24 V DC (EG24) |
| Electrical Interface | N9 — Central connector with integrated control electronics (OBE) |
| Spool Position Feedback | Integrated inductive position transducer (K31) |
| Seal Material | NBR (F1 — suitable for mineral oil based hydraulic fluids) |
| Mounting & Connection | Subplate mounting, ISO 4401-07-04-0 |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid, 24 V DC (EG24) 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 180 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
Integrated position feedback of the main spool ensures accurate, repeatable metering of actuator motion, making this valve a core control component in demanding industrial hydraulic systems requiring smooth acceleration, deceleration, and load-independent velocity control.
PRODUCT IMAGES


Rexroth 4WRZE16W6-180-74/6EG24N9K31/F1D3M / R90548124 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 4WRZE16W6-180-74/6EG24N9K31/F1D3M / R90548124 High-Response Solenoid Directional 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.