Neles ND9000 is an intelligent valve controller suitable for various rotary valves, linear-motion valves, and third-party control valve actuators. The controller supports HART, FOUNDATION Fieldbus, and PROFIBUS-PA communication protocols, provides local and remote configuration, and incorporates online, performance, and device self-diagnostics. With SIL 2 safety integrity and multiple explosion-proof certifications, the product is suitable for control valve regulation in industrial process control applications in hazardous areas such as refineries and chemical plants.
Neles ND9000 Intelligent Valve Controller
Neles
Neles ND9000 Intelligent Valve Controller
Intelligent valve positioning and control controller supporting multiple industrial communication protocols
- Category
- Valve Controllers
- Operating Temperature Range
- -40 to +85 °C / -40 to +185 °F, standard version
- Compatible Valve Types
- Rotary and linear-motion valves
Specifications
- Compatible Valve Types
- Rotary and linear-motion valves
- Actuator Compatibility
- Suitable for various control valve actuators and third-party actuators
- Communication Protocols
- HART, FOUNDATION Fieldbus, PROFIBUS-PA
- Configuration Methods
- Supports local and remote configuration
- Operating Temperature Range
- -40 to +85 °C / -40 to +185 °F, standard version
- Ingress Protection
- IP66 / NEMA 4X
- Diagnostic Functions
- Online, performance, communication, and device self-diagnostics, with diagnostic data storage
- Safety Integrity Level
- SIL 2
- Explosion-Proof Certifications
- ND9100: Ex ia/ib/ic/ec/nA, ATEX, IECEx, INMETRO, cCSAus, CCOE/PESO, KOSHA, and NEPSI; ND9200: Ex ia/ib/ic/ec/nA, ATEX and IECEx, Ex d, ATEX, IECEx, INMETRO, cCSAus, KOSHA, and NEPSI; ND9300: Ex ia/ib/ic/ec/nA, ATEX, IECEx, INMETRO, cCSAus, CCOE/PESO, and KOSHA, Ex d, ATEX, IECEx, INMETRO, cCSAus, KOSHA, and NEPSI; ND9400: Ex ia/ib/ic/ec/nA, ATEX, IECEx, INMETRO, cCSAus, CCOE/PESO, and KOSHA
Application scenarios
Hazardous-Area Industrial Control Valve Regulation
Installed on control valve actuators in industrial production areas with potentially explosive atmospheres, the controller provides intelligent valve positioning and regulation. The ND9000 series offers multiple explosion-protection certification configurations, with selected models supporting Ex d and SIL 2 safety integrity.
Refinery and Chemical Process Control Valves
Installed on rotary or linear-motion valve actuators in industrial processes such as refining and chemical production, the controller provides valve positioning and regulation. ND9000 is compatible with various control valve actuators and third-party actuators, and provides online, performance, communication, and device self-diagnostics.
Selection points
Compatible with Rotary and Linear-Motion Valves and Various Actuators
Suitable for rotary and linear-motion valves, and compatible with various control valve actuators and third-party actuators.
Supports Multiple Industrial Communication Protocols
Supports HART, FOUNDATION Fieldbus, and PROFIBUS-PA communication protocols.
Wide Operating Temperature Range and High Ingress Protection
The standard version operates from -40 to +85 °C and provides IP66/NEMA 4X protection.
Multiple Explosion-Protection Certifications and Hazardous-Area Versions
Depending on the specific model, ND9100, ND9200, ND9300, and ND9400 provide intrinsically safe, increased safety, non-sparking, or flameproof explosion-protection configurations, along with the corresponding area certifications.
Multi-Level Diagnostics and Diagnostic Data Storage
Supports online, performance, communication, and device self-diagnostics, as well as diagnostic data storage.
SIL 2 Safety Integrity Level
The product has a SIL 2 safety integrity level.
Installation notes
Electrical Entries and Enclosure Sealing
After wiring and maintenance, maintain the sealing integrity of the enclosure and cable entries to meet the IP66/NEMA 4X protection requirements.
Matching the Protection Type to the Hazardous Area
Before installation in a hazardous area, verify the explosion-protection markings and applicable certifications for the specific model, and ensure that the equipment protection type matches the hazardous area and installation requirements.
FAQ
What types of control valves and actuators are compatible with the Neles ND9000 intelligent valve controller?
ND9000 is suitable for rotary valves and linear-motion control valves. With appropriate mounting solutions, it can be used with various control valve actuators and supports mounting kits for third-party actuators. The specific mounting configuration must be confirmed based on the actual valve, actuator model, and application conditions.
Which industrial communication protocols does ND9000 support, and can it be integrated with an existing DCS system?
ND9000 supports HART, FOUNDATION Fieldbus, and PROFIBUS PA communication and can be integrated into mainstream DCS systems. During selection, the communication architecture of the site control system, device version, and explosion-proof requirements should be considered.
How do the diagnostic functions of ND9000 support control valve maintenance?
ND9000 provides device self-diagnostics, online diagnostics, performance diagnostics, and communication diagnostics, along with diagnostic data storage and easy-to-interpret data. These functions help identify performance changes in the valve control loop and provide a basis for proactive maintenance and process fluctuation control.
Is ND9000 suitable for use in hazardous areas or demanding industrial environments?
The standard version of Neles ND9000 is suitable for ambient temperatures from -40 to +85 °C and has an enclosure rating of IP66/NEMA 4X. ND9100, ND9200, ND9300, and ND9400 offer different combinations of Ex ia/ib/ic/ec/nA and, in some models, Ex d explosion-proof certifications. The applicable model and certification scope must be confirmed according to the requirements of the project area.
Can ND9000 be installed or replaced while the valve remains in process operation?
ND9000 supports hot swapping and can be installed on a valve in operation using the single-point calibration function. Before implementation, the site process safety requirements, valve status, and maintenance procedures should still be reviewed and confirmed.