Applied mechanical exhaust system is 280 ℃ damper, usually is normally closed when the fire broke by automatic fire alarm interlock signal automatically open fire damper application, along with a manual actuator, they can be opened manually, but also in fire Remote Control Center open (ie joint control, manual control, automatic control in three ways). In order to prevent false alarms general practice fire protection system to manual mode, when the fire occurred is confirmed by the control room or field manually turned on, and the linkage exhaust fan is turned on. 2.1 normally 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 automatically closes the valve closed .2.1.3 output signals, interlocking exhaust fan to stop .2.1.4 manually shut down, manually open .2.2 normally closed smoke damper, the following functions: normally closed smoke damper, and Name two movements smoke damper. 2.2.1 usually was normally closed when the fire broke out, Shijiazhuang fire dampers, by the control center DC24V power input, output valve rapid opening valve signal .2.2.2, .2.2.3 manual fan interlock control fire smoke turned on, Manual reset Close .2.2.4 when the pipe temperature reaches 280 ℃, fuse action, the valve is closed again .2.3 remote control type smoke damper (rope-controlled) function as follows: 2.3.1 has a normally closed smoke fire All functions can be remote valves 2.3.2 manually open, manual reset Close .2.3.3 rope controlling the distance standard 6m (long customizable) 2.4 automatic reset type smoke damper functions are as follows: 2.4.1 usually was often closed state, when the fire broke out, from the control center DC24V power input, the valve automatically opens .2.4.2 when the pipe temperature reaches 280 ℃, the fuse action, the valve automatically closes .2.4.3 .2.4.4 valve can be opened manually after opening without manual reset, simply enter DC24V power, the valve can be automatically reset to its original closed position (this feature is limited to the first temperature sensor is not operating, fire dampers installation, such as temperature sensors need to be replaced after the operation temperature sensors can still use this feature ) .2.4.5 valve open signal output, damper specifications, interlock control exhaust fan start and stop .2.4.6 If memory alloy temperature sensor, can be used repeatedly without replacement Shijiazhuang dampers, up Swiss mechanical and electrical, fire dampers Prices rose by Rui HVAC Electrical Equipment Factory. Shijiazhuang dampers, up Swiss mechanical and electrical, fire dampers price rose Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, For the latest information, contact: province.