Neles ND9103HN provides HART valve positioning with a medium-capacity spool for appropriately selected pneumatic actuators.
Neles ND9103HN HART Valve Controller
The Neles ND9103HN is an intelligent valve controller for pneumatic control valves, combining a 4–20 mA input with HART communication. It belongs to Valmet’s ND9000 family and uses the medium-capacity 03 spool configuration. Choose this version where the actuator requirements call for that pneumatic capacity and the installation does not require hazardous-area approval.
The model code is important when replacing an existing controller. ND9103HN identifies a specific communication and approval configuration; it is not a general description for every ND9103 unit. Compare the full nameplate, actuator information and required accessories before ordering.
Technical Specifications
| Parameter | Specification / Selection Note |
|---|---|
| Model | ND9103HN |
| Brand / family | Neles / Valmet ND9000 |
| Input and communication | 4–20 mA with HART |
| Power | Loop powered |
| Spool | 03: medium capacity; actuator stroke volume 1–3 dm³ under manufacturer selection guidance |
| Actuator action | Single or double acting with appropriate configuration |
| Valve movement | Rotary or linear with suitable mounting components |
| Enclosure protection | IP66 / NEMA 4X |
| Standard temperature | −40 to +85 °C; check accessory and actual-unit limits |
| Supply air pressure | 1.4–8 bar; observe the actuator rating |
| Pneumatic ports | G 1/4 |
| Cable entry | M20 × 1.5 |
| Hazardous-area approvals | None for suffix N |
What the Model Code Specifies
The 03 spool is the medium-capacity option. Valmet’s selection guidance associates it with an actuator stroke volume of 1–3 dm³. That is a starting point for selection, not a substitute for checking the movement time and pneumatic arrangement of the complete valve assembly.
The H designation identifies the HART version. The N designation means that the controller has no hazardous-area approvals. If the mounting location requires a certified device, a suitable approved configuration must be selected instead of treating enclosure protection as an explosion-protection rating.
Installation and Control System Compatibility
The ND9000 platform can be configured for single-acting or double-acting actuators and for rotary or linear valve movement. The controller still needs the appropriate mounting components, feedback arrangement and commissioning settings for the actual valve assembly.
For a replacement, identify the actuator manufacturer and model, action type, stroke volume and mounting kit. A controller that fits the existing bracket may still need a different shaft adapter or pneumatic connection arrangement. Confirm these items in the quotation rather than assuming that accessories shown in a photograph are included.
Check host compatibility and the device revision when preparing HART tools or asset-management software. HART communication does not make the unit interchangeable with FOUNDATION Fieldbus or PROFIBUS PA versions. Review the existing input circuit and engineering requirements before changing communication versions.
Local Setup and Maintenance Information
The ND9000 family provides local and remote configuration and diagnostic functions. These can help personnel review operating information, commission the controller and investigate valve behavior. Available software and device files should match the installed revision.
Calibration follows mechanical installation and configuration of the assembly. Confirm valve direction, actuator action and feedback alignment using the manufacturer instructions. Perform any movement test under the site’s approved work procedures; this product page is not an instruction to stroke an operating valve.
ND9103HN Compared with Related Models
Compared with ND9102HN, the principal code difference is the spool capacity: 03 identifies the medium-capacity selection, while 02 identifies the low-capacity selection. Do not choose between them solely by enclosure appearance or valve nominal size; use the actuator data and response requirement.
The base ND9103HN code does not specify the T internal position-transmitter option found in ND9103HNT. If your system requires a separate analog position feedback circuit, request confirmation of the complete transmitter configuration and wiring requirements.
For a broader view of communication and approval options, see the Neles ND9103 series overview. Keep the offered full code on the purchase order when comparing alternatives.
Information to Include in Your Enquiry
Send a readable nameplate photograph together with the required quantity and delivery destination. For a replacement, include the valve tag, actuator model and photographs of the existing mounting and tubing. These details help distinguish a controller-only requirement from a complete mounting package.
State whether brackets, shaft adapters, fittings or cable glands are required. Ask for the offered condition, included documents, warranty terms and delivery timing to be confirmed in writing. This page does not assert live stock, a fixed lead time or a particular manufacturing date.
Before approving a substitute, resolve differences in the full model code and accessory scope. Our valve positioner replacement checklist provides a practical way to organize the information needed for that review.
Frequently Asked Questions
Is ND9103HN a HART model?
Yes. H identifies the 4–20 mA HART communication version. Check the device revision and host requirements when selecting configuration files.
Can ND9103HN be used where hazardous-area certification is required?
The N version has no hazardous-area approvals. Specify an appropriate approved configuration for that installation and verify the supplied device’s documentation.
Does this model include a separate position transmitter?
The listed code has no T option. A separate analog feedback requirement should be stated explicitly when requesting a quotation.
Does the product photograph show everything included?
The written quotation defines the delivery scope. Confirm all mounting and connection accessories before ordering.
Manufacturer Documents and Quotation
Technical information on this page is based on Valmet’s ND9000 technical datasheet and installation and maintenance instructions. Use the documents applicable to the actual supplied revision for installation and detailed limits.
Contact Wuhan Yuli with your Neles ND9103HN requirement, actuator details and target delivery date. Request a written quotation identifying the exact configuration, accessories, condition and commercial terms. The complete specification should be agreed before the order is placed.
