The CARBOCOLLAR CC-L is an intumescent collar composed of a circular, pre-cut steel casing to fit any pipe diameter and one or more layers of reactive graphite-based material that reacts when exposed to heat, closing the openings left by the installation’s combustible material<.
The CARBOCOLLAR CC-L is designed to maintain the fire resistance of fire rated walls and floors where they are traversed by the fire compartments. They can be used in rigid masonry or concrete walls, as well as flexible walls and concrete floors.