Brandstoppande krage (50 mm.)
Brick cup is made of material which is extending considerably under the influence of high temperatures. This material is located in metal nozzles which can be installed around plastic pipes, attached to walls or ceilings, and immured in a floor or in walls. It is usually used in plastic pipes which are built in a floor or a wall.
In fire condition the material extends, squeezes a pipe and fills an opening. It is checked with PVC, HDPE, MDPE, ABS and propylene pipes, which will react differently.
Fire resistance capacity: EI120