. HTF (A) series fire temperature exhaust axial fan overview, features 1. HTF (A) series fire temperature exhaust axial fan, the basic form of axial-flow structure, the use of high temperature exhaust air motor chassis, with a special motor cooling system. With excellent performance, high temperature performance, high efficiency, covering less than the centrifugal fan, easy installation features. 2. HTF (A) series fire temperature exhaust axial fan through the "National Fire Equipment Quality Supervision and Inspection Center" qualified, the performance of the leading domestic level, by more than 30 provinces across the country recognized by the fire department. The fans sold in Beijing, Tianjin, Shanghai, Chongqing, Zhejiang, Guangdong, Jiangsu, Shandong, Henan, Hebei, Anhui, Hunan, Sichuan, Liaoning, Hubei, Shaanxi, Jilin, Inner Mongolia, Shanxi, Guizhou, Heilongjiang, Fujian, Jiangxi, Yunnan , Shenzhen and other provinces (municipalities) and autonomous regions. 3. Excellent high temperature performance exhaust fan: Fan tested to meet fire code standards GBJ45-82 fan with a unique design, high temperature motor built-in, configure the motor cooling system can operate continuously at 300 ℃ high temperature over 100 minutes, the temperature of 100 ℃ condition Continuous 20 hours / times without damage, widely used in senior civil, oven, underground garages, tunnels and other occasions; 4. Wide range of applications: according to the different requirements of senior civil construction, the use of variable-speed or multi-speed drive form, in order to achieve one machine (ie, when used through ventilation and fire temperature exhaust) purposes; leaf type into Axial (HTF (A) -Ⅰ, Ⅱ) and Francis HTF (A) -IG, also making roof type, style silencer. And centrifugal fan air flow and the difference between the axis is parallel to the axial fan called, (such as firefighting exhaust fan) and vice versa is a centrifugal fan (such as fan coil fan). Axial fans and centrifugal fan cabinet The fundamental difference in the mechanical structure of the fan: axial fan blade diameter is limited to the diameter of the exhaust fan housing, and the centrifugal fan, there is no limitation in this regard, you can use the blade forward or backward blades for wind pressure of require adaptation broader. And do cabinet handle htf muffler exhaust fan in the noise indicators have obvious advantages. Due to the general use of the lower number of revolutions of the motor, motor power, with a lot more power. If ventilation systems usually used, as far as possible cabinet centrifugal fan, fire smoke is not commonly used system swf exhaust fan, high temperature axial fan is more economical! Centrifugal fan axial fans than the combined amount of wind and a large selection pressure on the advantage (mainly referring to the fan efficiency and noise performance)! Centrifugal fans and axial fans difference is: 1, changed the flow of centrifugal fan duct within the media, but does not change the flow of axial fan duct within the medium; 2, the former air volume and pressure are large, air volume and pressure which are low; 3, the former is more complex installation, which is relatively simple to install; 4, the former general and fan motors are connected via the shaft, which is usually in the fan motor; 5, the former often installed in the air conditioning unit inlet and outlet of the boiler drums, Fan, etc., which were often installed in the duct or duct outlet front end. jgf exhaust fan, Tangshan exhaust fan, exhaust fan from Shandong GREAT fan manufacturers to provide air-conditioning Limited. Air Conditioning Equipment Co., Ltd. Shandong GREAT fan (www.greatfengji.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement and innovative ideas will lead you hand into the brilliant GREAT for a better future!