BK-CF90 Model
· The BK-CF90 firewall are made by two semicircular swings held in open position by a brass fuse which at 72ºC releases two interior swings sticking themselves to the body of the firewall assuring a perfect sealing.
· The firewall substitutes the intumescent grilles.

BK-CF2/ED
· The BK-CF2/ED firewalls are made by an integrated circular shaped gate integrated inside a collar of asbestos-free cement.

Technical Data Sheet