Neles NDX
Neles NDX valve controller provides a solution for all valve brands in a wide range of applications regardless of customer or industry. The product delivers all the robustness and reliability you’d expect from a valve controller by Neles. At the same time it is extremely easy to install and use.
Product Introduction
Products Description
Neles NDX is an advanced intelligent electrical valve positioner. It uses high-precision sensors and advanced digital control algorithms to ensure that the valve responds to control signals quickly and accurately, optimizes process control efficiency, and has a wide temperature range (-40°C to +80°C), suitable for extreme climate conditions.
Function
- Optimize gas circuit design, reduce factory compressed air usage, and save energy costs.
- Intelligent algorithms automatically adapt to different valve types and actuator characteristics, reduce commissioning time, and optimize dynamic response.
- NDX has a one-click automatic calibration function, and parameter settings are performed via Bluetooth or Wi-Fi to improve commissioning convenience.
- Quickly adapt to different valve characteristics and reduce manual commissioning time.
- By adjusting gain and damping parameters, optimize valve dynamic performance and avoid oscillation or slow response problems.
- NDX non-contact position feedback technology has high resolution and repeatability of up to ±0.5%, ensuring accurate valve positioning and improving process control stability.


Neles NDX improves the accuracy and efficiency of valve control, intelligent diagnosis and predictive maintenance, and can detect valve friction, response speed, air source pressure and other parameters in real time, and warn potential faults in advance.
TECHNICAL SPECIFICATIONS
|
HART |
Protocol rev. 6 / 7 |
|
Supply power |
Loop powered, 4–20 mA |
|
Min. control signal |
3.8 mA |
|
Current max |
120 mA |
|
Impedance at 20mA |
485 Ω |
|
Maximum voltage |
30 VDC |
|
Over current protection |
active over 35 mA |
|
Standard temperature range |
-40° to +85 °C |
Through HART or fieldbus protocol, it can be seamlessly integrated into DCS or PLC system, greatly improving the level of automation management, and can adjust parameters remotely, improve operation and maintenance efficiency, reduce downtime, optimize process flow and improve production efficiency.
Neles NDX intelligent valve positioner has high-quality materials, which can extend valve life, reduce mechanical wear, increase equipment service life, reduce failure rate, and avoid excessive maintenance and reduce maintenance costs through data-driven maintenance.
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