Valmet Neles™ NDX Valve Controller Performance Perfected

The Neles™ NDX valve controller from Valmet is a next-generation intelligent valve positioner designed to deliver superior control performance, diagnostics, and reliability across all valve types and process industries. Engineered for both rotary and linear valves, and compatible with single- and double-acting actuators, the NDX offers a universal solution for precise valve automation.

Its robust and compact design eliminates external mounting linkages and additional instrumentation, simplifying installation and reducing potential points of failure. The controller supports local and remote configuration, with intuitive diagnostics that recommend corrective actions, making commissioning and maintenance faster and more efficient.

Key Features:

• Optimized control performance for rotary and linear valves
• Superior diagnostics including online, performance, and communication monitoring
• Device self-diagnostics and data storage capabilities
• Low air consumption for energy efficiency and operational savings
• Touchscreen interface and remote access for easy setup
• SIL 2 capable, intrinsically safe and explosion-proof design
• Wide compatibility with valve stroke lengths up to 220 mm

Technical Specifications:

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

The NDX controller is designed to reduce air supply usage, streamline stock management, and minimize maintenance costs. Its modular architecture and compatibility with Valmet’s mounting kits make it easy to retrofit across a wide range of valve brands and applications.

Whether used in chemical processing, energy production, or water treatment, the Neles™ NDX ensures reliable, efficient, and safe valve control—backed by decades of automation expertise.