Category: normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, and one that is similar to, but different damper wholesale fusing temperature, generally used in the exhaust pipe through the firewall fire, smoke when the temperature exceeds 280 degrees automatic fuse off, you can turn off the exhaust fan interaction. Exhaust port: If you installed the necessary piping exhaust valve, use an ordinary single Grille can; otherwise required plate discharges, it is also the institution with the smoke damper. Fire control valve dampers installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned on, when the gas pipeline fire when the temperature reached 70 ℃, fusible film fuse, the valve automatically closes under the force of the torsion spring within a certain period of time to meet the fire resistance stability and fire integrity requirements, from smoke fire retardant valves. When the valve is closed, the output off signal to send fire control valve fire dampers installed in the ventilation and air conditioning systems, return air duct on the road, usually was turned on, when a fire in the pipeline when the gas temperature reaches 70 ℃, fusible film fuse, valves torsion force automatic shut customized best flue damper, in a certain period of time to meet the fire resistance stability and fire integrity requirements, since the role of smoke fire retardant effect of the valve. When the valve is closed, the output off signal. Smoke damper: Install exhaust system pipeline, usually generally was closed when the fire manually or electrically open, played the role of smoke fire dampers installed in the central air-conditioning duct system works easily fusible alloy. temperature control, the use of gravity acting and spring mechanism closes the valve. Stainless steel flue damper when a fire occurs manufacturers, flame invasion duct, high temperature causes the fusible alloy melting on the valve, or to memory alloy deforms the valve automatically closes, for air duct and the fire district throughout occasions. Products term damper installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned on, when a fire in the pipeline when the gas temperature reaches 70 ℃, fusible film fuse, the valve automatically closes under the force of the torsion spring, within a certain period of time to meet the fire resistance stability and fire integrity requirements, since the role of smoke fire retardant effect of the valve. When the valve is closed, the output off signal. Smoke damper installed in the exhaust system pipeline, usually generally was closed when the fire manual or electric opening, from the smoke effect. When the internal temperature of the flue gas exhaust pipe 280 ℃ close the flue damper, in a certain period of time to meet the fire resistance stability and fire integrity requirements, from the valve exhaust effects. 2 Product Principle installed in the central air-conditioning duct system works easily fusing temperature control gold using gravity acting and spring mechanism closes the valve. When a fire occurs, the fire invaded the duct, high temperature causes the fusible alloy melting on the valve, or to memory alloy deforms the valve automatically closes, for air duct and the fire district throughout occasions. 3 Product Categories damper flue damper 1. The damper manufacturing process, normally open, 70 degrees is closed, usually installed in the duct through the firewall, fires off the role, you can set the output electrical signals, temperature automatic smoke fire More than 70 degree valve when the valve is closed, the linkage to send (s) off the fans; flue damper manufacturing process | Lianyungang flue damper | GREAT GREAT fan by fan Air Conditioning Equipment Co. Shandong. Shandong GREAT Fan Air Conditioning Equipment Co. (www.greatfengji.com) strong, credible, Shandong Texas fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead into the brilliant GREAT and you work for a better future!