Wuhan damper installed in the central air-conditioning duct procurement system works extremely fluxing temperature control Wuhan smoke damper, by the action of gravity and spring mechanism closes the valve. When a fire occurs, Wuhan damper manufacturers, flame duct invasion, high temperature melting fusible alloy valves, or to make memory alloy deformed the valve automatically closes for the duct and the fire district throughout the occasion. Ventilation and air conditioning systems damper settings and choose (1) of the duct through the fire district; (2) through the ventilation, air conditioning and major engine room fire hazard or a large room at the walls and floor (3) vertical wind pipe and each level of the horizontal pipe junction duct damper should be located, but each of its multi-story building fire district ventilation and air conditioning systems are set up independently, then the horizontal and vertical duct manifold sub-region of the junction of the fire not to set fire damper damper manufacturers _ Wuhan 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.