Smoke extract dampers control the targeted smoke extraction of escape and rescue routes
The thermal buoyancy during a fire causes the smoke to rise upwards. The room air induced in the upward movement of the combustion gases determines the flow of smoke laden air to be removed. If the flow of extract air through the smoke extract system is too low, the smoke-free zone will progressively move downwards. DIN 18232 outlines measures for ensuring a smoke-free zone and for the construction of smoke extract systems that both allow users of a building to escape safely and facilitate the operation of firefighters.
Excessive smoke and heat produced by a fire can be quickly removed from the building by means of powered smoke extract systems.
