If you are willing to wholesale fire damper actuators from one of the famous fire damper actuators suppliers in China,Website:http://www.chinaactuators.com, or you are going to check fire and smoke damper actuators, air damper actuators, electric rotary actuators, hvac damper actuator price with a such factory, Star Win Actuators Manufacture Co.,Ltd is always at your service.ActuatorsStar Win s actuator is a type of motor that is responsible for moving or controlling a mechanism or system.It is operated by typically electric current, An actuator is the mechanism by which a control system acts upon an environment. The control system can be simple (a fixed mechanical or electronic system), software-based (e.g. a printer driver, robot control system), a human, or any other input.Fire Damper ActuatorsFire damper actuators are drive smoke and fire dampers in ductworkWhere the duct passes through a firewall or firecurtain. A probe connected to the actuator is installed in the run of the duct and detects smoke, either in the air which has been extracted from or is being supplied to a room, or elsewhere within the run of the duct. Once smoke is detected, the actuator will automatically close the smoke damper until it is manually re-opened.Type selectionThe marked in colors items,same color must choose one item for a product;Non- marked items choose as your requirement, showed No means without the function.