The Neptronic L-T-R Actuator Series delivers dependable, high-torque performance for large dampers, valves, and air-handling systems. Built for large dampers, air-handling units, and valve control applications, these actuators combine robust mechanical strength with precise control and long-term reliability.
Each actuator is the result of Neptronic’s decades of expertise in intelligent HVAC control. The L-T-R Series provides the perfect balance between strength and responsiveness, ensuring smooth operation even in the most demanding environments.

With torque ranges up to 40 Nm, the series is equipped to handlelarge-scale dampers and valves without compromise.

Compatible with On/Off, Floating, 2–10 VDC, 4–20 mA or multi-signal controls, making retrofits and new builds simpler and faster.

Detects foam and drains only as needed, conserving water andenergy.
| Feature | Specification |
| Torque Range | Up to ~40 Nm (≈360 in.lb) |
| Control Signals | On/Off, Floating, 2–10 VDC, 4–20 mA |
| Power Supply | 24 Vac/30 Vdc and 120/240 Vac options |
| Rotation | 0-90° standard, adjustable stroke option |
| Manual Override | Built-in clutch for manual operation |
| Fail-Safe Option | Available on select models |
Head Office
National Environmental Products Ltd.
Neptronic
400 Boulevard Lebeau
Montréal (Québec) H4N 1R6 Canada
E-mail: contact@neptronic.com
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