Texas where good quality roof exhaust fan, how much the price Tel: 18653444408 Manager Wu roof exhaust fan with molded axial flow impeller, built high temperature motor (arrangement specialized motor cooling systems), rain hood, the base pan of water. High temperature performance, high efficiency, small size, easy installation, and other advantages. Optional two-speed motors can be achieved in one machine (ie, usually at high temperature exhaust smoke and fire), arranged after the electrical control box can be remotely controlled automatically. Press GA211-1999 Fire fan high temperature test methods, can run at 400 ℃ more than 100 minutes of continuous high temperature, medium temperature at 100 ℃ continuous operation 20 hours / time is not damaged, has been the provinces, municipalities approved for the fire department Roof fire smoke ventilation applications. HTF fans unique product structure: transport gas is not in direct contact with the motor and arranged a special motor cooling system. Can be used as temperature, humidity, corrosion-resistant type roof fans, used in electric power, petroleum, chemical, metallurgy and other high-temperature, high humidity industrial applications of roof ventilation.