Internal fans are usually install a pressure delivery outlet, the outlet What role do the following to analyze simple:? If there is a fire in the front room pressure delivery outlet situation, emission of smoke inside the fan will turn positive pressure self-blower or manual fire alarm disaster turned positive electrical outlet will offer independent, open pressure between the positive pressure of the house at the top of the tower fan and exports, deprived of air inside, the front of the room exit stairs. This will be a smooth interior room air circulation method leaves much pressure delivery outlet, maintain a positive pressure in front of the room, to ensure that the smoke can not spread to this place, but it can also be as a place of refuge. When the temperature is more than 280 degrees Celsius big time could not have survived the pressure delivery outlet, it will break inside the fuse, and then shut itself down, to prevent the fire from spreading. The factory produced positive outlet is often used in the design and planning of fire smoke emissions inside, but it's in some places also need to set a separate mechanical smoke emission system outlet pressure wind speed of not more than 7m / s, and pressure values: stairwell for 40pa ~ 50pa front room, shared room, fire elevator room, closed refuge floors of 25pa ~ 30pa, wind exhaust port is not greater than 10m / s. Pressure delivery outlet specifications, pressure delivery outlet, rich ventilation equipment provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Plumper ventilation equipment into the brilliant and you work for a better future!