The Valmet Neles ND Series, including models ND9103HX8T, ND9106HX8T, ND9203HE8T, ND9206HE8T and ND7106HX8, are advanced smart electro-pneumatic valve positioners. They deliver precise and reliable control for industrial valves.
These positioners use digital technology to ensure accurate valve positioning. They provide real-time feedback for optimal performance in critical process control applications. The devices are loop-powered, integrating seamlessly with 4-20mA control signals and HART communication protocols. This enables remote monitoring and configuration.
| Parameter | Details |
|---|---|
| Input Signal | 4-20 mA DC, HART 7 compatible |
| Supply Pressure | 0.2 to 0.7 MPa (2 to 7 bar) |
| Output Pressure Range | 0.02 to 0.6 MPa (0.2 to 6 bar) |
| Positioning Accuracy | ±0.25% of full scale |
| Enclosure Protection | IP66 / IP67 |
| Ambient Temperature | -40°C to +85°C (-40°F to +185°F) |
| Communication Protocol | HART 7, FOUNDATION Fieldbus (optional on select models) |
| Mounting Standard | IEC 60534-6-1 / VDI/VDE 3845 |
The Valmet Neles ND Series positioners are engineered for critical process control in industries requiring high reliability:
Q: What is the difference between ND9100 and ND9200 series models? A: The ND9100 series is designed for quarter-turn valves (ball, butterfly, plug valves), while the ND9200 series is optimized for linear valves (globe, control valves).
Q: Can these positioners be used in hazardous areas? A: Yes, select models are ATEX, IECEx, and CSA certified for use in Zone 1/21 and Zone 2/22 hazardous locations.
Q: How often do I need to calibrate the positioner? A: With automatic calibration functionality, routine calibration is typically only needed every 2–3 years or after maintenance.
Q: Is HART communication required for operation? A: No, the positioners operate with a basic 4-20mA signal, but HART unlocks remote configuration and diagnostic capabilities.
For inquiries, technical support, or to request a quote, reach out to us directly:
wechat/what's app/phone number:+8613472860702
Our team of industrial automation experts is ready to assist with product selection, configuration, and after-sales support.
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