Product Overview
The Rexroth 4WRKE25E350L-35/6EG24ETK31/A1D3M (Material Number: R900704202) is a high-performance, pilot-operated proportional directional valve designed for precise control of flow direction and magnitude in demanding industrial hydraulic systems. Manufactured by Bosch Rexroth, this valve belongs to the 4WRKE series, which is renowned for its robust construction, high flow capacity, and exceptional dynamic response. The valve operates on a two-stage principle: a proportional pilot valve (with a nominal size of 6) controls the main spool of the second stage (nominal size 25). The “E” designation indicates a high-response, position-controlled design with integrated electronics, ensuring precise spool positioning and repeatable performance. The “350L” code signifies a nominal flow rate of 350 L/min at a 10 bar pressure drop per land, while the “L” denotes a linear flow characteristic. This valve is a critical component in systems requiring accurate velocity and position control of actuators, such as in injection molding machines, metallurgical equipment, and testing rigs. Its integrated digital amplifier (ETK31) with 24 V DC supply and A1D3M interface ensures seamless integration into modern control architectures, providing superior command tracking and stability.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated) |
| Model Designation | 4WRKE25E350L-35/6EG24ETK31/A1D3M |
| Material Number | R900704202 |
| Nominal Size (NG) | 25 (Main Stage), 6 (Pilot Stage) |
| Nominal Flow Rate | 350 L/min (at Δp = 10 bar per land) |
| Operating Pressure | Up to 350 bar (P, A, B ports); 315 bar (T port) |
| Pilot Pressure | Minimum 25 bar; Maximum 315 bar |
| Control Spool Type | E-type, linear characteristic, spring-centered |
| Actuation | Proportional solenoid with integrated digital amplifier (ETK31) |
| Electrical Supply | 24 V DC (nominal), 6 A max |
Engineering Features & Advantages
- Precision Performance: The integrated proportional solenoid with integrated digital amplifier (ETK31) ensures precise, repeatable control with low hysteresis and stable performance across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- 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 350 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This valve is a critical component in systems requiring accurate velocity and position control of actuators, such as in injection molding machines, metallurgical equipment, and testing rigs.
PRODUCT IMAGES
Rexroth 4WRKE25E350L-35/6EG24ETK31/A1D3M / R900704202 Proportional Directional Valve
âš¡ 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 4WRKE25E350L-35/6EG24ETK31/A1D3M / R900704202 Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a pilot-operated design with integrated electronics, delivering leak-free, reliable fluid control for heavy-duty industrial systems.