Product Overview
The Rexroth KKDER8UA/HN0V (Material No. R901070050) is a high-performance proportional directional valve from the Rexroth KKDER series, engineered for precise, continuous control of flow direction and magnitude in demanding industrial hydraulic systems. Utilizing a direct-operated proportional solenoid with a robust spool-and-sleeve design, this valve converts an electrical input signal into a proportional hydraulic output, enabling smooth, infinitely variable control of actuator speed and direction. The KKDER8UA/HN0V is a size 8 (NG8 / CETOP 3) valve with a nominal flow capacity suited to medium-power circuits, and it serves as a critical interface component in closed-loop and open-loop control architectures where accurate motion control, fast response, and repeatable metering are essential. As a genuine Rexroth proportional valve, it delivers the dynamic performance and long service life expected in modern industrial automation and mobile hydraulic applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Direct-Operated, Solenoid Actuated) |
| Model Designation | KKDER8UA/HN0V / R901070050 |
| Manufacturer | Rexroth (Bosch Rexroth) |
| Size / Nominal Diameter | NG8 (CETOP 3 / ISO 4401-03) |
| Actuation Type | Proportional Solenoid, Direct-Operated |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, per Rexroth specification) |
| Spool Configuration | Proportional spool with metering lands for fine flow control |
| Mounting & Connection | Subplate mounting, ISO 4401-03 / CETOP 3 interface |
| Electrical Interface | Proportional solenoid with integrated position feedback (per model code) |
Engineering Features & Advantages
- Precision Proportional Metering: The spool-and-sleeve metering geometry delivers infinitely variable flow control proportional to the electrical command signal, enabling accurate velocity and position regulation of hydraulic actuators.
- Fast Dynamic Response: Direct solenoid actuation provides rapid spool positioning with minimal hysteresis, supporting high-cycle industrial control loops and precise motion profiles.
- Integrated Feedback Capability: The “UA” designation indicates a valve configured with position feedback, ensuring high repeatability and closed-loop control accuracy when paired with Rexroth proportional amplifiers.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened spool and sleeve components resistant to contamination and wear.
- Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
As a genuine Rexroth proportional valve, it delivers the dynamic performance and long service life expected in modern industrial automation and mobile hydraulic applications.
PRODUCT IMAGES
REXROTH KKDER8UA/HN0V / R901070050 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 KKDER8UA/HN0V / R901070050 Solenoid Directional Spool Valve. This Germany-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.