Vertical air system vertical air system is the outdoor air through the fresh air unit processed by the vertical duct to the air-conditioned rooms, most of the new air unit located on the roof. For lower-storey building, the horizontal duct laying down new situation is more difficult to apply. For high-rise buildings, vertical wind tunnel to cross the fire district, Wuhan dampers, outlet required to set 70 ℃ blown dampers. In short, the flue damper, floors of tall buildings under its conditions permit, stratified by each fire district should set the air conditioning system. Smoke damper means mounted on the exhaust system pipe, damper effect, usually was turned on, when the gas pipeline fire when the temperature reaches 280oC automatically shut down in a certain period of time to meet the fire resistance stability and fire integrity requirements . Role play the role of smoke fire retardant fire damper valve air exhaust system of a complex, intricate piping. In the air supply system, the blower wind sent to the main channel must be assigned to each branch through the tube; in ventilation or exhaust system, wind or smoke pooled by the branch after the main channel into the exhaust fan discharge. So, whether it is air system or exhaust system, if there is no barrier, then the supply and the amount of smoke you can not control, no air or exhaust parts of a large number of air supply, exhaust the situation, and need air or exhaust air is not part of, or just a small amount of exhaust air, exhaust. In order to not require air, exhaust pipe parts cut off, requiring the valve means. Wuhan damper, Wuhan Han Wei Li Yuen damper, fire damper structure by heating Equipment Co., Ltd. Wuhan Han Wei Li Yuen. Wuhan damper, Wuhan Han Wei Li Yuen damper, damper structure is Wuhan Han Wei Li Yuen-being of Equipment Co., Ltd. (www.whhwly.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Jingli.