1) combination fire smoke damper 复合式防火防烟阀2) smoke fire damper 排烟防火阀 1. This paper analyses the problems about the control of the mechanical smoke extraction system,and discusses the problem about smoke fire dampers and smoke exhausting fans. 分析了机械排烟系统的有关控制问题,对...
PURPOSE: A combination fire diffusion prevention and smoke prevention damper is provided, which makes the inside of the body portion automatically closed by a blocking plate when the internal air temperature rises over the set temperature.;CONSTITUTION: A combination fire diffusion prevention and smoke...
you need to be prepared. Tunnel dampers play an important role in regulating tunnel air flow to prevent exhaust gases from building up. In the event of a fire, they also vent the tunnel of toxic fumes—protecting passengers from inhaling the dangerous smoke....
device, be arranged in a unitary structure which can be mounted outside a duct containing a fire and/or smoke damper with which the actuator/link is associated or be in the form of a cartridge which can be mounted at one end on the blade actuator of a fire and/or smoke damper. ...
device, be arranged in a unitary structure which can be mounted outside a duct containing a fire and/or smoke damper with which the actuator/link is associated or be in the form of a cartridge which can be mounted at one end on the blade actuator of a fire and/or smoke damper. ...