Damper Actuators
A damper actuator is an electromechanical device that serves as the driver of a ventilation system, translating an electrical control signal into a physical rotating force. These components are mounted directly onto the shaft of a damper to precisely position its blades, thereby regulating airflow within a duct or terminal unit. Actuators receive signals—typically proportional (0-10V or 4-20mA), two-position (open/close), or floating—from a direct digital controller or thermostat. They use internal gearing and a motor to rotate the damper shaft to a commanded position, ensuring accurate and continuous modulation of air volume or tight sealing against smoke and fire. Damper Actuators are critical for maintaining the intended function of modern HVAC systems. They enable precise zone temperature control (in VAV systems), manage fresh air intake, and ensure that safety components, such as fire and smoke dampers, operate instantly and reliably during an emergency, optimizing both comfort and safety.