High temperature performance: Fan Test in line with GB / T13274-91 "general purposes technical conditions" and GA211-2009 "fire exhaust fan high temperature test methods" Fire Code standards, the fan with a unique design, high temperature motor Built-configured exhaust fan motor cooling system specifications to run at more than 100 minutes of continuous high temperature 300 ℃ conditions, at a temperature of 100 ℃ for 20 hours / time is not damaged. Widely used in high-rise buildings, underground garage, subway tunnels and other occasions. Using a wide range: you can use according to how senior civil claim without exhaust fan with variable speed or multi-speed exhaust fan drive form, in order to achieve one machine (that usually use through ventilation and fire temperature exhaust) aims : leaf-type axial flow into the exhaust HTF (GYF) -I, II, D1, D2, and Francis smoke HTF (GYF) -III, IV, can also be made rooftop silencer type. Easy to install exhaust fan factory, covering less than the centrifugal fan exhaust fan installation and maintenance: a kitchen fan is indispensable key kitchen equipment, recommended not installed in the ceiling, to be installed in the engine room, the roof or wall and so easy maintenance of the place. Second, due to the long hours in the kitchen fan temperature, humidity, fumes gas. Regular maintenance is indispensable work. Failure: 1, the impeller blade leads to oily curvature, angle deformation, air volume total pressure parameters decreased significantly, reaching less than exhaust requirements. 2, the impeller oil stains causes the impeller to lose balance, increase shock, damage to the bearings. 3, harsh environments parts easily rust, damaged fan. Exhaust fan price, rose Rui Electric (certified), exhaust fan, ventilation and air conditioning provided by the liter Swiss mechanical and electrical equipment factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In liters Swiss electromechanical leadership with the staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical better future.