Neles ND7000 Digital Valve Controller
Product Overview
The Neles ND7000 Digital Valve Controller is a smart, reliable, and future-proof solution for precise valve automation across all control valve actuators and industry sectors. Designed to deliver exceptional performance for both linear and rotary valves, it features advanced HART communication, SIL 2 certification, and robust diagnostics for optimized process control. With its IP66/NEMA 4X enclosure and wide temperature range, the ND7000 thrives in harsh environments, making it ideal for industries such as oil and gas, chemical processing, and water treatment. Its modular design and easy configuration ensure seamless integration and long-term reliability.
Key Features
- Versatile Compatibility: Supports linear and rotary valves, single- and double-acting actuators.
- HART Communication: Enables real-time data access and integration with major DCS systems.
- Robust Design: IP66/NEMA 4X enclosure withstands harsh environmental conditions.
- SIL 2 Certified: Meets IEC 61508 standards for safety-critical applications.
- Advanced Diagnostics: Self-diagnostic and online performance monitoring for predictive maintenance.
- Easy Configuration: Simple auto-calibration and local/remote setup for fast commissioning.
- Low Power Consumption: Energy-efficient design reduces operational costs.
- Hot Swap Support: Allows 1-point calibration for installation on live process valves.
Technical Specifications
| Parameter |
Specification |
| Input Signal |
4-20 mA with HART |
| Supply Pressure |
1.4–8 bar (20–115 psi) |
| Air Capacity |
5.5 Nm³/h at 4 bar (3.2 scfm at 58 psi) |
| Operating Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Protection Rating |
IP66, NEMA 4X |
| Certifications |
ATEX, IECEx, INMETRO, Ex ia/Ex nA, SIL 2 (IEC 61508) |
| Weight |
Approx. 3.4 kg (7.5 lbs) |
| Material |
Aluminum housing with polymer coating |
| Mounting |
IEC 60534-6 (linear), VDI/VDE 3845 (rotary) |
| Communication Protocol |
HART |
Applications
The Neles ND7000 is designed for a wide range of industrial valve control applications:
- Oil and Gas: Precise valve control in upstream, midstream, and downstream processes.
- Chemical Processing: Reliable operation in corrosive and high-pressure environments.
- Water Treatment: Efficient flow control in water and wastewater systems.
- Power Generation: Optimizes valve performance in steam and gas turbine systems.
- Pulp and Paper: Supports valve automation in pulp processing and paper production.
Frequently Asked Questions
What types of valves can the ND7000 control?
It supports both linear and rotary valves, single- and double-acting actuators.
Is the ND7000 suitable for hazardous environments?
Yes, it is certified for ATEX, IECEx, and INMETRO, including Ex ia and Ex nA approvals.
How does the ND7000 support diagnostics?
It provides self-diagnostic and online performance monitoring for predictive maintenance.
Can the ND7000 be installed on live process valves?
Yes, it supports hot swap with 1-point calibration for installation without process interruption.
What communication protocol does the ND7000 use?
It uses HART for seamless integration with distributed control systems.
Contact Us
For more information about the Neles ND7000 Digital Valve Controller, pricing, or to request a demo, contact our team:
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