¨ 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. ¨ 2. Smoke fire control valve, normally open, 70 degrees closed, with 1, but more than a telecommunications signal input, remote control can eliminate the control room is closed, generally used for peacetime air, fire up a common air duct system, fire can control when off unneeded air make room; 3. normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, and one that is similar to, but different fusing temperature, generally used in fire smoke Crossing the firewall normally closed multi-leaf delivery outlet, the flue gas temperature exceeds 280 degrees automatically closed vertical fuse multi-leaf delivery outlet, close linkage exhaust fan. 1. Exhaust valve normally closed smoke damper (NC multi-leaf delivery outlet, telecommunications numbers turned 280 degrees blown off, or manually turned off) generally used in exhaust systems, you can install a suction port in exhaust fan when the fire control room is controlled by eliminating open galvanized sheet multi-leaf delivery outlet, the chain is closed also closed the exhaust fan. 2. The exhaust valves, with the three, each unit different names, some based on its operating temperature is called the exhaust valves, and some based on its use of nature called the damper, but only for the common damper device side of the fuse metal fuse into that kind of 280 degrees. 3. The automatic smoke damper (underground engineering) Fire subway ventilation and air conditioning systems, exhaust valve having automatic fire alarm equipment and gas extinguishing system linkage control functions. Each automatic smoke dampers with two independent electric control signal, 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. Exhaust port if you have 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. The company's main products are: 1, FP series of fan-coil ----- machine and scroll, the wind round, the overall condensed water, etc. accessories. 2, ZK series of modular air-conditioning unit, BFP series VAV units, the new wind generating units. 3, FK series aluminum alloy outlet, casual flow; DUP series of spherical vents, DUT series of spherical adjustable outlet, VDP series cyclone outlet, BLP series changed manifold outlet. 4, fire dampers, exhaust valves, fire control valve, exhaust port, outlet, air flow control valve, damper actuator valve actuator. 5, hook vibration, shock absorber damping, and other equipment. 6, various types of muffler, bend muffler, silencer duct, plenum chamber muffler blinds. 7, the fire temperature exhaust fan, Francis fan, fire ventilation dual tank centrifugal fans, axial fans, induced fan, ramps flow fan, the wind chassis and other products. 8, energy efficient new wind ventilators, dust purification equipment. 9, the major air conditioning manufacturers supporting a variety of table cold, heaters, humidifiers, air curtain, air curtain, air conditioning flaps and other accessories. Fire leafy outlet, Wuhu leafy outlet, Guangde outlet provided by the multi-leaf fan air-conditioning Equipment Co., Ltd. Shandong GREAT. 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.