Installed in the central air-conditioning duct system, the working principle is easy to control the temperature of fusion of gold, the use of gravity acting and spring mechanism to close the valve. When a fire occurs, the flame duct invasion, high temperature fusible alloy valves melting Wuhan smoke damper, or make memory alloy deformed the valve automatically closes for duct and fire district throughout the occasion. The company in the country has a wide range of users, and has offices in Beijing, Xi'an, Changsha and other regions. The company has 1,200 square meters of production plants, and bending machines, shears, presses and other equipment a total of 15 sets. The company is committed to developing high-tech products and dedication to the cause of the development of environmentally friendly air-conditioning services, social services, and strive to build a set of their own high-tech, manufacturing, service-oriented, as one of the high-tech enterprises. Fire and smoke control valve, normally open, 70 degrees Wuhan smoke damper closed price, with one, but more than a telecommunications signal input, control room by eliminating remote control is off, generally used for peacetime air, fire, wind up a common duct system the damper can be controlled fire off unneeded air make room; normally open type smoke damper, damper 280 degrees fuse shut Wuhan procurement, normally open, output electrical signal, this and a similar, but different fusing temperature , generally used in a fire at the exhaust pipe through the firewall, the flue gas temperature over 280 degrees, turn off the automatic fuse, turn off the exhaust fan can be linked. Wuhan fire dampers, fire dampers, Wuhan Han Wei Wei Li Yuen provided by Wuhan Han Liyuan heating equipment Limited. Wuhan Han Wei Li Yuen-being of Equipment Co., Ltd. (www.whhwly.com) strong, credible, in Wuhan, Hubei fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wuhan Han Wei Li Yuen and you hand into the brilliant, for a better future!