Fire exhaust valve manufacturers / price mechanical exhaust system installed on the ends of each branch pipe (flue gas inlet port) at, usually was turned off and meet the requirements of air leakage dampers, fire or smoke needed to open the manual and electric, from the row Valve smoke effect. Valves with decorative mouth or been called decorative treatment of the exhaust port [1]. General building exhaust system requires personnel to confirm and operate, so no sense temperature exhaust valve device. Usually installed in the upper portion of the building space or ceiling area. Exhaust valve interlock with fire detectors, fire smoke detectors in particular interlocking, by Discovery smoke early fires to open the valve of flue gas into the motor or solenoid mechanism driven automatic valves. The fan duct damper 2 Operating mode exhaust valves are generally used for the exhaust system, usually normally closed, smoke detector alarm signals emitted wholesale dampers when the fire, the fire control center DC24V voltage through the open exhaust valve, also You can manually open the valve manually damper, manual reset. After the valve is opened to emit electrical signal to the fire control center. According to requirements, but also with other devices interlock. Exhaust valve and outlet ordinary Grille or plate combination, may constitute exhaust vent. ¨ material; galvanized steel (T), stainless steel cold-rolled steel Dimensions; (C size) with duct size characteristics; usually was always open, smoke control center through electrical signals sent (DC24V) fire. Energize the motor actions performed within the organization, automatically open and close the valve, and output on an electrical signal. After the valve actuation DC motor drive reset. Manually open the valve operation, manual reset. ¨ ¨ materials; galvanized steel (T), stainless steel cold-rolled steel Dimensions; (C size) with duct size characteristics; usually was always open, smoke is sent to the control center via the electrical signal (DC24V) fire. Energize the motor actions performed within the organization, automatically open and close the valve, and output on an electrical signal. After the valve actuation DC motor drive reset. Manually open the valve operation, manual reset. ¨ wholesale damper, damper 2-year warranty, provided by the Shandong GREAT Tongcheng damper Fan Air Conditioning Equipment Co.. Shandong GREAT Fan Air Conditioning Equipment Co. (www.greatfengji.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. GREAT leadership in the staff warmly welcome all inquiries negotiations to create a better future GREAT.