Rectangular cut-off fire dampers, with a single-plane cut-off partition, are the most frequently performed type by manufacturers. The main limitation of this type of flaps, for large cross-section cables, it is necessary to maintain the minimum length of a straight pipe section …

A fire breaks out in buildings, especially in high-rise and high-rise buildings that are appearing more and more often today, carries a great danger for their users. The smoke generated in the combustion process poses the greatest risk, which spreads …