The HTF(A)-W fire and smoke exhaust roof fan adopts a modular high-flow impeller, with a built-in high-temperature motor (equipped with a dedicated motor cooling system), rainproof wind cap, and flashing base. It features excellent high-temperature resistance, high efficiency, compact size, and easy installation. Optional dual-speed motor enables dual functionality (i.e., normal ventilation and high-temperature smoke exhaust during fire emergencies). When equipped with an electrical control box, it can be remotely and automatically controlled. According to the GA211-1999 high-temperature resistance test method for fire fans, it can operate continuously for over 100 minutes at 400°C and for 20 hours per session at a medium temperature of 100°C without damage. It has been approved by fire departments across various provinces and cities in China for roof-type fire and smoke exhaust ventilation applications.
The unique product structure of the HTF(A)-W roof smoke exhaust fan: The conveyed gas does not come into direct contact with the motor, and it is equipped with a dedicated motor cooling system. It can be used as a temperature-resistant, humidity-resistant, and corrosion-resistant roof fan, suitable for roof smoke exhaust and ventilation in high-temperature, high-humidity industrial environments such as power, petroleum, chemical, and metallurgical industries.