Product Overview
The Rexroth 4WRPH6CA24L-21/G24Z4/V-855 (Material Number: R901391845) is a high-response, pilot-operated proportional directional valve from the renowned Rexroth WRPH series. Engineered for precise electro-hydraulic control of flow direction and magnitude, this valve features a 4-way, 3-position spool configuration with a closed-center design. The integrated proportional solenoid actuates the main spool proportionally to the electrical input signal, enabling smooth, infinitely variable control of actuator speed and direction. With its high-response characteristics and robust construction, this valve is a critical component in demanding industrial hydraulic systems requiring fast dynamic response, accurate positioning, and reliable operation under continuous duty cycles.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (4-Way, 3-Position) |
| Model Designation | 4WRPH6CA24L-21/G24Z4/V-855 / R901391845 |
| Operating Pressure | Up to 315 bar (standard industrial grade, pilot and main stage dependent) |
| Nominal Flow Rate | Size 6 (NG6) – flow optimized per spool type CA24L |
| Actuation | Proportional solenoid, 24 V DC (G24Z4), with integrated position feedback |
| Spool Type | CA24L – closed center, progressive flow characteristics |
| Mounting & Connection | Subplate mounting, ISO 4401-03 (CETOP 3 / NG6) interface |
| Seal Material | NBR (standard); FKM available on request |
Engineering Features & Advantages
- Precision Performance: High-response proportional solenoid and optimized spool geometry deliver fast, accurate flow control with minimal hysteresis and excellent repeatability, ensuring precise actuator positioning and velocity regulation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust pilot stage and wear-resistant spool/bushing pairing for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, including mounting interface, electrical connections, and hydraulic characteristics.
- Advanced Control Integration: Designed for use with Rexroth proportional amplifiers or modern digital controllers, enabling closed-loop position, velocity, or force control strategies.
- Energy Efficiency: Closed-center spool minimizes parasitic flow losses in neutral position, reducing heat generation and improving overall system efficiency.
Typical Industrial Applications
This high-response proportional directional valve is ideally suited for demanding motion control applications across various heavy industries. Typical uses include plastic injection molding machines (clamping, injection, and ejection control), metallurgical presses (forging, stamping, and deep drawing), CNC machine tools (feed axes and tool changers
PRODUCT IMAGES
Rexroth 4WRPH6CA24L-21/G24Z4/V-855 / R901391845 High-Response Proportional Directional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH 4WRPH6CA24L-21/G24Z4/V-855 / R901391845 Solenoid Directional Control Valve. This Germany-made 24V DC hydraulic component features a high-performance spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
