• No regular control test according to ÖNORM H 6027
• Integrated high-temperature resistant cold smoke barrier
• Low pressure loss
• Insensitive to moisture, no corrosive metal parts
• Simple installation and retrofitting

The PROCOL-ALM FLI90 fire protection closure with integrated cold smoke barrier for surface mounting is used to seal off air ducts made of spiral ducts.

It consists of a plastic housing that is resistant up to 200°C with internal and external insulation layers.

In the event of a fire, the intumescent layer expands - the pipe cross-section is sealed and heat transfer to the side facing away from the fire is restricted.

Permitted separating components

Distance regulation