Product Overview
The Rexroth 4WRTE 16 E125L-46/6EG24EK31/A1M (Material Number R900979605) is a high-response, 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 4WRTE series, which features a two-stage design combining a pilot valve with a main spool stage. The valve utilizes proportional solenoid actuation to deliver infinitely variable spool positioning, enabling accurate directional control and velocity regulation of hydraulic actuators. With integrated position feedback and a high-response main stage, the 4WRTE 16 E125L-46/6EG24EK31/A1M is engineered for applications requiring fast dynamic response, minimal hysteresis, and excellent repeatability. The nominal size 16 (NG16) interface ensures compatibility with standard industrial mounting patterns, making it a direct replacement for OEM installations.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Pilot-Operated, High-Response) |
| Model Designation | 4WRTE 16 E125L-46/6EG24EK31/A1M |
| Material Number | R900979605 |
| Nominal Size | NG16 (DIN 24340 / ISO 4401) |
| Operating Pressure | Up to 350 bar (main stage); pilot pressure per internal design |
| Nominal Flow | 125 L/min at Δp = 10 bar per land |
| Actuation | Proportional solenoid, 24 V DC (EG24) |
| Electrical Connection | Component plug, industry standard (EK31) |
| Spool Type | E125L (progressive flow characteristic, closed-center) |
| Mounting & Connection | Subplate mounting, ISO 4401-16 / NG16 interface |
| Seal Material | NBR (standard industrial hydraulic fluid compatibility) |
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: Precision-manufactured to original Rexroth specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
The nominal size 16 (NG16) interface ensures compatibility with standard industrial mounting patterns, making it a direct replacement for OEM installations.
PRODUCT IMAGES



Rexroth 4WRTE 16 E125L-46/6EG24EK31/A1M / R900979605 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 4WRTE 16 E125L-46/6EG24EK31/A1M / R900979605 High-Response Directional Control Valve. This Germany-made 24V DC hydraulic component features a pilot-operated spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.