HTF fire exhaust fan, 2015 factory wholesale HTF fire exhaust fan. Sales Hotline: 0534-6350444 HTF series fire temperature exhaust fan for high-rise buildings, underground buildings and tunnels, drying room and other high-temperature exhaust or ventilation. Capable of continuous operation at 280 ℃ high temperature for 30 minutes or more, the medium temperature at 100 ℃ continuous operation 20 hours / times without damage, fire is the ideal necessary facilities. Fire temperature exhaust fan performance models illustrate a selection and performance of fan performance table lists the performance in the most efficient range, according to the performance of the air volume is divided into five operating points, according to prevail in the selection of the performance table. Factory fan qualified under rated air flow, total pressure value error does not exceed ± 5%, the performance of the selection table is a performance standard state, regardless of the state performance standards are technical documents or ordering requirements prevail. 2, the fan installation can be divided into horizontal and roof type, for wind, total pressure, mounting dimensions and other properties have special requirements. 3, HTF-Ⅰ, HTF-Ⅱ, said pressure type fire temperature exhaust fan, leaf type with axial flow: HTF-Ⅰ (single speed) and HTF-Ⅱ (double speed) of two; HTF-Ⅲ, HTF -Ⅳ representation pressure fire temperature exhaust dedicated 4, HTF-X for silencer type fire temperature exhaust fan, the user can choose according to the actual needs of different species. 5, HTF-W Series rooftop fire temperature exhaust fan, the user can choose according to the actual needs of flame-retardant fiberglass hood or steel hood. 6, HTF-D for low pressure type fire temperature exhaust fan. 7. Special Note: GYF and HTF series fan is similar products.