Dezhou Plumper ventilation plant is specialized in the production of central air-conditioning equipment manufacturers supporting the end. Products in full accordance with the national standard, standard production line, advanced equipment, technology and stability. Normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, this and a similar, but different damper functions fusing temperature, generally used in fire exhaust pipe through the firewall, the flue gas temperature is more than 280 When the degree of automatic blown off, you can turn off the exhaust fan interaction. Our attention to credibility, and ensure the quality of products, focusing on small profits, rapid delivery dampers, and after-sales service system, many new buildings provide air conditioning equipment for fire dampers performance in recent years, from product quality and after-sales service, all get the user's satisfaction. Exhaust valves, with the above, each unit different names, some based on its operating temperature is called the exhaust valves, and some based on its use of nature called damper, but just an ordinary damper device side fuse metal replaced That kind of blown 280 degrees. Automatic smoke damper (Metro Engineering) fire subway ventilation and air conditioning systems, exhaust valves have automatic fire alarm equipment and gas extinguishing system linkage control functions. Each automatic smoke dampers have two independent electric damper control signal specifications, respectively, by EMCS, gas consumption system to monitor, control signals are DC24V ± 10% signal. Each automatic smoke dampers have six independent feedback signal (three open place, three off place) feedback signals are normally open dry contact signal. Damper principle, rich ventilation equipment (certified), Heze, Shandong Dezhou Plumper dampers provided by ventilation plant. Dezhou Plumper ventilation plant (#) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Rich ventilation equipment in leadership with the staff warmly welcome all inquiries negotiations to create rich, ventilation a better future.