HTF series fire temperature exhaust fan system state-level "Spark" product of the project, with excellent performance, high temperature performance, high efficiency, covering less than the centrifugal fan, easy installation features. 2, HTF Fire fan high temperature performance: Fan tested in accordance with GBJ45-82 Fire Code standards, establish higher standards of corporate internal control to ensure that the system can run continuously at 300 ℃ high temperature for 60 minutes or more, under 100 ℃ temperature conditions Continuous 20 hours / times without damage, widely used in high-level civil, oven, underground garages, tunnels and other occasions. 3, performance HTF Fire fan performance table is listed in the most efficient range of performance, according to the air volume is divided into five-point performance axial fan rain hat, according to prevail in the selection of the performance table. Fire fan factory 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 technical documentation or ordering requirements. [1] HTF exhaust fan Technical Data Sheet centrifugal fan device is essentially a constant flow of change. When constant speed centrifugal fan pressure - flow theory curve should be a straight line losses due to internal centrifugal fan selection and installation, the actual curve is curved. Pressure generated by the centrifugal fan in severely affected the intake air temperature or density changes. Minimum pressure for a given gas flow, generated the highest intake air temperature (air density minimum). For a given pressure and flow characteristic curve selection and installation of exhaust fans, there is a power flow characteristic curve When the blower running at constant speed for a given flow, reducing the power required with intake air temperature rises. ventilation fan outlet valve manufacturers, Boxing fans, air-conditioning equipment by Texas Hao Yang Hao Yang air conditioning Equipment Limited. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hao Yang air conditioning and you hand into the brilliant, for a better future!