The intumescent fire doors grills are manufactured in a material which with fire it converts into foam blocking the passage of flames; the firewall gates incorporate a fuse which from 72º melts and triggers the two layers assuring a perfect sealing; intumescent necks are manufactured in a material which melts at 150º and per expansion it closes de duct where it is installed.
Intumescent collars. Made of graphite which melts at 150ºC sealing the duct where is installed.
The rectangular intumescent grills act as a firewall, they have been developed to allow a free ...
The circular intumescent grills act as a firewall, they have been developed to allow a free ...