Exhaust valve means belonging to a subsidiary of buildings. Prices damper, smoke machine The utility model is to solve the current common when using public flue damper, smoke machine smoke is not smooth problems and provide a common use of the common flue exhaust smoke smooth valve. The utility model comprises a housing (3) round damper manufacturer, its structure points are on one side of the housing (3) having a smoke machine can be connected to the exhaust pipe (1) of the pipeline (2), housing (3) Set on the active axis tilt direction of the other side of the flange duct (7) (6) on (11) has an active cover (9), the wind pipe (10), housing (3 facing on ) is provided with a filter inside (12) of network support (5). 1. dampers, normally open, 70 degrees is closed, usually installed in the duct through the firewall, fires off the role, you can set the output electrical signal, the temperature exceeds 70 degrees when the valve is closed, the linkage to send (s) off the fans; 2 . smoke fire control valve, normally open, 70 degrees closed, with 1, but more an electrical signal input, remote control can eliminate the control room is closed, generally used for peacetime air, fire up a common air duct system, a fire can Close unneeded makeup air control rooms; 3. normally open type smoke damper, 280 degrees blown off the manual valve, normally open, output electrical signal, and a similar check this, just different fusing temperature, the general application to fire the exhaust pipe through the firewall, the flue gas temperature exceeds 280 degrees when automatic fuse closed damper, linkage to close the exhaust fan. Smoke damper Type: normally open type smoke damper 2. normally closed smoke damper 3. Remote control type smoke damper (rope control type) 4. Automatic reset type smoke damper 2.1 Chang open-type smoke damper functions are as follows: 2.1.1 usually was always open when the fire broke out, the rear control center DC24V power output, the valve automatically closes 2.1.2 When the pipe temperature reaches 280 ℃, fuse action, the valve. 2.1.3 Automatic shut-off signal output valve interlock exhaust fans stop 2.1.4 manually shut down, manually open the normally closed 2.2 smoke damper, smoke damper movement known as secondary functions are as follows: 2.2. 1 usually was normally closed smoke damper, when the fire broke out, from the control center DC24V power input, quickly open the valve 2.2.2 valve open signal output, interlock control exhaust fan fire. 2.2.3 manual open, manual reset Close. 2.2.4 when the pipe temperature reaches 280 ℃, the fuse action, the valve is closed again. 2.3 remote control type smoke damper (rope control type) 150 degrees damper damper low price _ _ Chizhou damper from Shandong GREAT Air Conditioning Equipment Co., Ltd. Fan. 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.