Product Overview
The Rexroth 4WRPH6CB40L-20/G24Z4/M (Material Number: 0811404061) is a high-response, direct-operated proportional directional valve from the renowned Bosch Rexroth WRPH series. Engineered for precise control of flow direction and magnitude in hydraulic systems, this valve features a 4-way, 3-position spool design with a nominal size of NG6 (CETOP 3 / ISO 4401-03). The “CB40L” spool type provides a specific flow characteristic optimized for smooth, progressive metering, while the integrated Z4 spring return ensures a defined fail-safe center position. The “G24” designation indicates a 24 V DC proportional solenoid with integrated position feedback, enabling closed-loop control when paired with a suitable amplifier card. This valve is a critical component in demanding industrial applications requiring high dynamic response, low hysteresis, and excellent repeatability for precise velocity, position, and force control of hydraulic actuators.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (4-Way, 3-Position) |
| Model Designation | 4WRPH6CB40L-20/G24Z4/M |
| Material Number | 0811404061 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Operating Pressure | Up to 315 bar (P, A, B ports); 210 bar (T port) |
| Nominal Flow Rate | 40 L/min at Δp = 10 bar per land |
| Spool Type | CB40L (Progressive flow characteristic, closed center) |
| Actuation | Proportional Solenoid, 24 V DC (G24) |
| Electrical Connection | Component plug, 4-pin (Z4) |
| Feedback | Integrated position transducer (M) |
| Mounting & Connection | Subplate mounting, ISO 4401-03-04-0-05 |
Engineering Features & Advantages
- Precision Performance: The integrated integrated position transducer (M) 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: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
- Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 40 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is a critical component in demanding industrial applications requiring high dynamic response, low hysteresis, and excellent repeatability for precise velocity, position, and force control of hydraulic actuators.
PRODUCT IMAGES


Rexroth 4WRPH6CB40L-20/G24Z4/M / 0811404061 Proportional Directional Valve
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Shop the genuine Rexroth 4WRPH6CB40L-20/G24Z4/M / 0811404061 Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a 4-way proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.