Fire resistant collars
When combustible pipes burn away, openings appear in the floor or walls through which fire can spread. Fire resistant collars prevent propagation of fire by expanding through heat, thus closing off the openings and making them fire resistant.
How does a fire resistant collar work?
When combustible (plastic) pipes burn away during a fire, openings appear in fire resistant walls. Fire resistant collars are affixed around such pipes to prevent fire from spreading to other compartments. They expand through heat, thus closing off the openings and making them fire resistant.
- The fire resistant collars are installed around combustible pipes.
- They contain a high-quality intumescent material that expands when the temperature reaches about 150°C.
- The pipe burns and the intumescent material fills up the opening to prevent the fire from spreading any further.