Close the damper when the damper Usage (1) usually was turned on, when the fire in the flue gas exhaust pipe when the temperature reaches 280 degrees, and meet in a certain amount of time leakage of smoke and fire dampers installed integrity requirements, from the septum smoke fire retardant effect (2) allows the valve is closed by DC24V power; (electric type smoke damper) (3) or manual reset manually shut down; (4) closed DC24V electric reset; (automatic type smoke damper fire sample valve for manual operation inconvenient places) (4) output valve closed signal can be interlocked with other fire-fighting equipment. Structure of the main components: body, valve leaves, shafts, bushings, fuses, rectangular valve actuator thickness: L = 210,260 flange width of three to 30, 40 to 30 conventional design or ordering please W indicate size> 1250, the increase in the middle frame, blade separation. Body area ≥1m2 dampers price, actuators mounted two. Torsion actuator torque can be adjusted by three grades main fuse holders intraoperative parameters Operating temperature: 70 ℃ Valve fire rating: 1.5h air leakage; ≤700m3 / m2.h control voltage: DC24V operating current: 0.2A Micro Switch contact capacity: AC380V 3A all-entered the drag coefficient: <0.5 Installation of editing 1. damper with fan, exhaust fan interlock. 2. The operation of the valve mechanism side should be not less than 200mm of headroom to facilitate maintenance. 3. The valve must be checked before installation of the valve operating mechanism is intact, the action is flexible and effective. The damper should be installed in the duct segments close to the wall or floor, the fire dampers on both sides of the partition wall from the wall surface should not exceed 200mm, dampers and pipe insulation material on both sides of each 2.0m wide should be non-combustible material. 5. The damper should set up a separate hanger to prevent pipe deformation affecting its performance in case of fire. 6. damper fuse should be installed in a large piece of the side facing the fire risk. Damper module | Rui Xincheng air conditioning (certified) | Zhoukou damper provided by Rui Xincheng Air Conditioning Equipment Co., Texas. Texas Rui Xincheng Air Conditioning Equipment Co., Ltd. (www.dzrxckt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Rui Xincheng conditioning in leadership with the staff warmly welcome all inquiries negotiations to create a better future Rui Xincheng air conditioning.