Texas's largest manufacturers produce positive outlet to find pressure delivery outlet Hao Feng [] Sales Hotline: 13573487358 pressure delivery outlet: Role: In the event of a fire, the motor will turn on the interior air, temperature sense smoke or manually fire alarm will be turned on, a positive pressure fan tower roof opens automatically pressurized air to air shaft, the front room of the stairs by a steady stream of pressurized air outlet will air on the front chamber, the front room to maintain a positive pressure, ensure smoke will not spread in the region, while giving space to escape. When the temperature is higher than 280 ° C were no longer escape the possibility of its internal fuse will blow, air automatically shut down to prevent the fire from spreading. Application: National high-rise building fire smoke design specification, these parts should set up a separate mechanical exhaust system 1: do not have the natural conditions of the stairwell smoke, fire elevator room or shared room. 2: natural smoke the stairwell, it does not have the front room of natural smoke. 3: closed refuge floors.