Description

Metso ND9103HN Electro‑Pneumatic Smart Valve Positioner

Technical Specifications

• Product Model: ND9103HN
• Brand: Metso (Neles‑Valmet)
• Warranty: One Year
• Input Signal: 4‑20 mA DC control signal, HART protocol
• Supply Air Pressure: 1.4‑8 bar (20‑115 psi) instrument air
• Operating Temperature: ‑40 °C ~ +85 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Fast pneumatic output response for valve stroke regulation
• Protection Class: IP66 / NEMA 4X field housing
• Accuracy Class: Positioning accuracy ±0.5 % full stroke
• Output Frequency: Not applicable
• Air Consumption: Optimized steady‑state air consumption
• Actuator Support: Single‑acting / double‑acting linear and rotary pneumatic actuators
• Communication: HART digital communication; compatible with NE724/S1 local user interface module
• Mounting: Complies with VDI/VDE 3845 standard for actuator mounting
• Certifications: ATEX / IECEx intrinsically‑safe options available
• Diagnostics: Valve signature monitoring, travel deviation, supply‑air fault, instrument self‑diagnosis
• Humidity: 5‑95 % RH non‑condensing
• Weight: 2.27 kg
• Dimensions: Standard ND9000‑series positioner mechanical footprint
• 

Product Overview

ND9103HN is Metso ND9000‑series modular smart electro‑pneumatic valve positioner. It converts 4‑20 mA control signal from DCS/PLC into precise pneumatic output to drive control‑valve actuators. Supports HART remote configuration and diagnostic functions, and can be fitted with NE724/S1 local display‑keypad module for on‑site commissioning. Integrated valve health monitoring assists predictive maintenance for control valves. Extensively deployed in chemical, oil‑gas, power‑generation and pulp‑&‑paper plants. Surplus and refurbished tested spare positioner for legacy‑process‑plant instrument replacement projects.

Application Notes

‑ Use dry, clean instrument air meeting ISO 8573‑1 quality requirements. ‑ Perform full stroke auto‑calibration after mechanical installation or LUI‑module swap. ‑ Respect actuator single‑acting / double‑acting configuration setting. ‑ Typical deployment: process‑plant smart‑valve‑positioner spare‑part stocking.