Neles™ NDX™ next generation valve controller

One controller can do it all

valve controller for a valve and actuator assembly

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 would expect from a valve controller by Valmet. At the same time it is extremely easy to install and use.

Benefits

Reliability

Wear‑free design ensures repeatable performance and dependable operation

Operational savings

Measurable cost reductions through lower supply-air consumption and less instrumentation requirements

Ease

Fast, intuitive installation and simplifed commissioning using touch screen or remote connection minimizes human error and reduces maintenance time

Universal compatibility

One controller works across virtually all valve brands, actuator types, and control systems, using standard communication protocols providing versatility that reduces inventory requirements and streamlines plant standardization

Features

  • Optimized performance
  • Superior diagnostics and data storage capabilities
  • Local and remote configuration
  • Easy interpretation of diagnostics data
  • For rotary and linear valves
  • Valve stroke length up to 220 mm
  • Single and double acting versions
  • Low air consumption
  • Reliable and robust design
  • Device self diagnostics
  • On-line, performance and communication diagnostics
  • Intrinsically safe and explosion proof
  • SIL 2 capable

Specifications

Temperature range: -40 ... +85 °C / -40 ... +185 °F
Communication: HART, FOUNDATION™ Fieldbus
Protection class: IP66 / NEMA 4X enclosure
Approvals: Ex ia / Ex nA: ATEX, IECEx, cCSAus, CCOE/PESO, KOSHA, CCC
  Ex d: ATEX, IECEx, cCSAus (pending), CCOE/PESO, KOSHA, CCC

Downloads

Universal valve control performance

Universal and sustainable valve control performance – for all valves, industries and applications. One controller can do it all. Modularity makes it the easy choice. Designed for sustainable performance. See the Neles NDX animation to learn more.

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Modular next generation valve controller

The Neles NDX has universal performance, meaning it can be put on top of any valve or actuator. The next-generation valve controller is a versatile solution for all actuator sizes, linear or rotary action.

The NDX has been designed to meet the needs of varying markets and industries, like petrochemical, chemical, and oil and gas. It provides interoperability to the most common automation systems. In addition, we have been developing the usability and simplicity of the controller based on customer feedback. These developments enable safer and even more reliable day-to-day operations.

Sustainability and efficiency at the core

The Neles NDX offers significant savings in air consumption and, consequently, in energy efficiency. The pneumatic relay of the controller has been redesigned so that it consumes approximately 80 to 90 percent less air than the conventional controllers. Thanks to the lower air consumption, the NDX provides significant energy savings and reduces CO2 emissions throughout its lifecycle.

Reliability with long experience

Did you know we have a long history in the design and manufacture of valve positioners? For over 60 years, we have provided best in class Neles™ control valves for pulp and paper industry. During the years, we have grown into a global provider of valve controllers for variety of industries. We interviewed Niklas Lindfors, Director, Positioners, about our journey to becoming a pioneer in positioner manufacturing.

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The development of Neles NDX valve controller

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Neles NDX training videos

Neles NDX part 1 – Types

Neles NDX part 1 – Types

In part 1, learn about the available Neles NDX positioner types, the valve or actuator applications where installed, and the process environment in which they are best suited.
Neles NDX part 2 – Pneumatic connections

Neles NDX part 2 – Pneumatic connections

In part 2, learn how the uniquely designed Neles NDX positioner reduces stock management with the versatility of a few simple adjustments of the check valve and exhaust adapters when making the pneumatic connections.
Neles NDX part 3 – Maintenance and spare parts

Neles NDX part 3 – Maintenance and spare parts

In part 3, learn the proper maintenance method for accessing the various internal components inside Neles NDX and how to replace the parts when needed.
Neles NDX part 4 – Operating principle

Neles NDX part 4 – Operating principle

In part 4, understand how the components found inside the Standard or Compact type of Neles NDX housings function together.
Neles NDX part 5 – Mounting and commissioning

Neles NDX part 5 – Mounting and commissioning

In part 5, see a demonstration of the fast mounting method and easy calibration method of the Neles NDX valve controller on a Neles globe valve.
Neles NDX - simple installation

Neles NDX - simple installation

Neles NDX™ valve controller is simple to install
Neles NDX - contactless position measurement

Neles NDX - contactless position measurement

Neles NDX™ valve controller delivers robust contactless position measurement
Neles NDX - versatile pneumatics

Neles NDX - versatile pneumatics

Neles NDX™ valve controller offers versatile pneumatics
Neles NDX - guided startup

Neles NDX - guided startup

Neles NDX™ valve controller provides a simple guided startup
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