Details temperature of high-temperature exhaust fan fire HTF HTF fire exhaust fan is widely used in high-rise buildings, drying room, underground garages, subways, tunnels and other occasions and sent fire smoke exhaust ventilation. Fire fan by GA211-1999 htf temperature exhaust fan fire test methods, can run at 400 ℃ more than 100 minutes of continuous high temperature, medium temperature at 100 ℃ continuous operation 20 hours / times without damage, has been the major cities in the country approved for use by the fire department. Fans of the series can be installed in accordance with the requirements of occasions, peripherals silencer box, made HTF (A) -X box-shaped exhaust fan fire. Fire exhaust fan set Location: Distance tunnel fire exhaust fan should not be too close to the side wall, so as not to affect the ventilation exhaust fan fire tunnel wall arranged for a minimum distance from 20 cm two-speed exhaust fan fire, rescue "sentinel." The tunnel is divided into different settings Disaster area, make full use of fire exhaust fan deviated and fixed at both ends of the tunnel as a rescue station into fresh air and exhaust channels, cross ventilation openings must maintain positive pressure state, to prevent flue gas flow channel. ventilation air from the direction of the incident tunnel through a secure tunnel to cross the channel, inhibiting the flue gas into a cross-channel and tunnel accident did not occur to meet the evacuees facing fresh air into the tunnel cross passages and safety, at the same time waiting area needed to ensure fresh air in the tunnel area according to different accident Disaster different ventilation mode. When the "sentinel" Disaster ventilation scheme implemented when the train rescue point in the "sentinel" range for all of the cross-channel contact set the fan can be reversed within a secure tunnel made from fresh wind. temperature exhaust fan fire _ Chenyu air conditioning (certified) _ Yingkou City exhaust fan provided by Wu Chen Yu Air Conditioning Equipment Co.. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.