ALLPROOF Drop-In Fire Collars (DIFC) provide a simple and effective passive fire rating option for plastic pipes, cables or pair coils through thin concrete floors or trapezoidal steel tray concrete floors.
These composite floors feature profile changes on the underside of the slab and make it difficult to fire rate with a conventional fire collar fixed to the underside of a floor slab. Standard DIFC fits floors up to 210mm thick. Custom product available for thicker floors.
SUITABLE FOR FITTING WITHIN:
• Thin concrete floors (minimum 70mm)
• Trapezoidal steel tray concrete floors (composite floors)
• Installed and fixed from top side of slab
• Can be retrofitted around services
• Made from galvanised steel
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