Product Overview
The Rexroth 4WRZE16E180-74/6EG24N9EK31/A1D3M (material number R901404455) is a high-response, pilot-operated proportional directional valve from the Rexroth 4WRZE series, designed for precise, continuous control of flow direction and magnitude in demanding industrial hydraulic systems. Featuring size 16 (NG16) nominal flow paths and a rated flow of approximately 180 L/min at a 10 bar (Δp) valve pressure differential, this valve utilizes a proportional solenoid with integrated position feedback to deliver infinitely variable spool positioning. The “E” spool designation provides a progressive flow characteristic with a closed-center (overlap) configuration, ensuring stable load holding and precise actuator control. Configured with 24 VDC solenoids (EG24), an N9 design variant, and an integrated amplifier with position transducer (EK31), this valve is engineered for closed-loop velocity and position control of cylinders and motors in injection molding, metallurgy, and heavy-duty motion control applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, 4-Way, 3-Position) |
| Model Designation | 4WRZE16E180-74/6EG24N9EK31/A1D3M |
| Material Number | R901404455 |
| Nominal Size | NG16 (Size 16) |
| Rated Flow | ≈ 180 L/min at Δp = 10 bar per land |
| Operating Pressure | Up to 350 bar (ports P, A, B); pilot pressure per Rexroth specification |
| Spool Type | E-type, closed center, progressive flow characteristic |
| Actuation | Proportional solenoid, dual (EG24), 24 VDC |
| Integrated Electronics | EK31 valve amplifier with inductive position transducer (closed-loop spool control) |
| Mounting & Connection | Subplate mounting per ISO 4401 / DIN 24340 (NG16 pattern); DIN EN 175301-803 solenoid connectors |
| Seal / Fluid Compatibility | N9 (NBR) seals; mineral oil based hydraulic fluids per DIN 51524 |
Engineering Features & Advantages
- Precision Performance: The integrated eK31 valve amplifier with inductive position transducer (closed-loop spool control) ensures precise, repeatable control with low hysteresis and stable performance 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 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 180 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
Configured with 24 VDC solenoids (EG24), an N9 design variant, and an integrated amplifier with position transducer (EK31), this valve is engineered for closed-loop velocity and position control of cylinders and motors in injection molding, metallurgy, and heavy-duty motion control applications.
PRODUCT IMAGES
Rexroth 4WRZE16E180-74/6EG24N9EK31/A1D3M / R901404455 Proportional Directional Valve
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Shop the genuine REXROTH 4WRZE16E180-74/6EG24N9EK31/A1D3M / R901404455 Proportional Directional Valve. This Germany-made 24 VDC hydraulic component features a pilot-operated proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.