1. The construction and installation of fire dampers with fan, exhaust fan interlock. 2. The operation of the valve mechanism side should be not less than 200mm of headroom to facilitate maintenance. 3. Install the valve must be checked before the valve operating mechanism is intact Wuhan manual dampers, the action is flexible and effective. The damper duct segments 4. damper should be installed close to the wall or floor, the fire dampers on both sides of the partition wall from the wall surface should not exceed 200mm, dampers on each side of the pipeline within the scope of its 2.0m insulation materials should be non-combustible material. 5. The damper should set up a separate hanger to prevent pipe deformation affecting its performance in case of fire. 6. damper fuse should be installed in a large piece of the side facing the fire risk. Vertical air system vertical air system is the outdoor air through the fresh air treatment units, delivered through a vertical duct air-conditioned rooms, most of the new air unit located on the roof. For the lower storey building Wuhan electric damper, horizontal duct laying new situation is more difficult to apply. For high-rise buildings, vertical wind tunnel to cross the fire district, required to set the blown air outlet damper 70 ℃. In short, the story of tall buildings under its conditions permitting, should be stratified by each fire district an air conditioning system. Wuhan electric damper | Wuhan Han Wei Li Yuen (certified) | damper provided by Wuhan Han Wei Liyuan heating equipment Limited. Wuhan Han Wei Li Yuen-being of Equipment Co., Ltd. (www.whhwly.com) is a leader in Wuhan, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. In Wuhan Han Wei Li Yuen leadership with the staff warmly welcome all inquiries negotiations to create Wuhan Han Wei Li Yuen a better future.