Fire stop coupling to prevent the passage of flames.
The characteristic of the fire stop coupling (also called a collar) is that it is made of an intumescent material which, in the event of a fire, expands to compress the pipe, thus preventing the passage of flames, vapors, and combustion gases.
Available in the following diameters:
| Weight | N/A |
|---|---|
| Diameter | 100mm, 50mm, 63mm, 80mm |
| Brand | Sistem Air |