XGZ (HTF) series fire temperature exhaust fan for high-rise and underground buildings and tunnels, drying room and other high-temperature exhaust or ventilation. Capable of continuous operation at 300 ℃ high temperature for 60 minutes or more, the medium temperature at 100 ℃ continuous operation 20 hours / times without damage, fire is the ideal necessary facilities. Model: XGZ-Ⅰ type of single-speed high-temperature exhaust fan, XGZ-Ⅱ type of two-speed high-temperature exhaust fan, can one machine (ie normal ventilation and temperature exhaust); XGZ-Ⅲ type dedicated to the roof discharge temperature XGZ-Ⅳ type of package double silencer exhaust fan, there are special requirements for noise and temperature exhaust ventilation place; gas.