The Neles ND9000 is the global benchmark intelligent valve positioner trusted in over 1.5 million critical control loops worldwide. Featuring proven spool-valve technology, ultra-low steady-state air consumption (as low as 0.15 Nl/min), and advanced online diagnostics (valve signature, performance metrics, friction analysis), it delivers ±0.35% accuracy across linear and rotary actuators. Fully compatible with HART 7, Foundation Fieldbus, and Profibus PA, the ND9000 integrates seamlessly with all major DCS/asset management systems and is certified for SIL 2/3 safety applications.
| Parameter | Specification |
|---|---|
| Input Signal | 4–20 mA + HART 7 / Foundation Fieldbus H1 / Profibus PA |
| Air Supply | 1.4–8 bar (20–115 psi) |
| Accuracy | ±0.35% F.S. |
| Air Consumption | 0.15 Nl/min (HART), 0 Nl/min (FF/PROFIBUS) |
| Stroke / Angle | Linear 10–120 mm; Rotary 30–120° |
| Temperature Range | -40°C to +85°C |
| Enclosure | IP66 / NEMA 4X, optional stainless steel |
| Hazardous Area | Ex ia, Ex d, Ex nA (ATEX, IECEx, FM, CSA) |
| SIL Capability | SIL 2 (SIL 3 in redundant configuration) |
Zero steady-state — the lowest in the industry.
Yes — in 1oo2 redundant configuration.
Typically under 60 seconds with one button press.
Email: edwardzhao@gbsxj.com
Phone: +8615000725058
