AF COLLAR (Diam. 30-315 mm)

AF COLLAR is a cylindrical stainless-steel element, containing one or more layers of intumescent material with high thermo-expansion power that allows complete internal space sealing when heated. During a fire, the tube deforms due to the heat and progressively burns while the intumescent part of the collar expands until it occupies the entire internal space, ensuring resistance to smoke and flames. AF COLLAR is a firestop collar certified under EN 1366-3 up to EI 240 sealing of mechanical and electrical system penetrations in walls and floors (for sanitary, rainwater, vent, insulated, multilayer, corrugated, plastic pipes, also when bundled together and which contain electrical cables). 

ETA 16/0891

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