1.HTF-Ⅰ, HTF-Ⅱ, said pressure type fire temperature exhaust fan exhaust fan, leaf type with axial flow: HTF-Ⅰ (single speed) and HTF-Ⅱ (double speed) in two; HTF- Ⅲ, HTF-Ⅳ representation pressure fire temperature exhaust professionals; 2, HTF-X for silencer type fire temperature exhaust fan, the user can choose according to the actual needs of different kinds; 3, HTF-W Series rooftop fire temperature row Smoke dedicated fan, the user can choose according to the actual needs of flame-retardant fiberglass hood or steel hood; 4, HTF-D for low pressure type fire temperature exhaust fan; 5. Special note: GYF and HTF series fan is similar products. 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, rescue "sentinel" setting will tunnel into. Disaster-proof exhaust fan in different regions, make full use of fire exhaust fan deviated and fixed at both ends of the tunnel as a rescue station into a new channel hot air and smoke exhaust fan fire, ventilation must be maintained at a positive cross-channel port 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 the new air into the tunnel cross passages and safety inside, waiting area while ensuring the required fresh air in the tunnel area according to different accident Disaster different ventilation mode. When the "sentinel" Disaster ventilation scheme implemented when the train designated rescue, all in "sentinel" range Contact cross channel settings can be reversed to obtain fresh wind from the fan inside the secure tunnel. high temperature exhaust fan fire exhaust fan Shenyang _ _ Chenyu air conditioning services provided by wucheng Limited Chenyu air conditioning equipment. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.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 Chenyu air conditioning and you hand into the brilliant, for a better future!