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Passive Fire Protection
Passive Fire Protection

Drop In Fire Collar

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Passive fire protection DIFC top down drop in fire collar concrete floor slab install render
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Drop in fire collar DIFC passive fire control device plumbing pipe service penetration smoke fire seal insulation product thumbnail
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Passive fire protection DIFC top down drop in fire collar concrete floor slab install render
composite trapezoidal comfloor passive fire protection floor waste drain fire collar drop in top down install render

Allproof Drop-in fire collars offer a straightforward and efficient passive fire rating solution for thin concrete floors or trapezoidal steel tray concrete floors. These floors, featuring profile changes on the underside of the slab, pose challenges for conventional fire collars fixed beneath a floor slab.

Designed, manufactured, and tested in New Zealand for NZ projects, Drop-in fire collars can be retrofitted around pipes, easily dropping into position and fixed from above. The unique extendable tab allows for adjusting the collar to varying depths of composite floor slabs. DIFCs provide a passive fire protection system for composite floor penetrations on various plumbing services. Assessment confirms that Allproof DIFCs’ Fire Resistance Level (FRL) equals that of composite floors with tray profiles of 60mm, 80mm, and 210mm.

These collars have also undergone testing to provide passive fire protection on floor waste systems, flat slabs, and plasterboard ceilings.

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Allproof passive fire products have been tested on plumbing and electrical service penetrations. To assist with product research and technical information our test literature has been presented in documents relevant to the service penetration that requires fire rating.

Extendable 210 - Drop In Fire Collar

Extendable 300 - Drop In Fire Collar

 

 

Suitable For Fitting With:

  • Thin concrete floors (minimum 70mm)
  • Trapezoidal steel tray concrete floors (composite floors)

Features:

  • Installed and fixed from top side of slab
  • Can be retrofit around pipe
  • Made from Galvanised steel

Installation Instructions:

  1. Core drill hole to specified diameter to suit pipe size.
  2. Install drop in fire collar fixing with two metal pin anchors. (Floor waste installs require the tabs to be recessed into the slab).
  3. Ensure collar on underside of slab is exposed no greater than 80mm and recessed in slab no more than 5mm.
  4. Insert pipework through collar.
  5. Seal gaps between concrete/collar and collar/pipe with 15mm depth of Allproof MAS310 or Bostik Fireban One intumescent sealant.
  6. Allproof recommends any thermal or acoustic lagging maintains a 50mm separation to the fire collar.

Fire-Penetration-Schedule.xlsx

Fire-Penetration-Schedule.pdf

Composite Flooring

Flat Slab

Revit Files

BPIR

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PRODUCT ENQUIRY

We love to help with technical questions and provide further product information, however please note that we don’t provide costs direct to the market. For quotes and prices please direct your enquiry through your preferred installer and/or merchant. Please see our FAQ’s for further information on this.


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    PRODUCT ENQUIRY

    We love to help with technical questions and provide further product information, however please note that we don’t provide costs direct to the market. For quotes and prices please direct your enquiry through your preferred installer and/or merchant. Please see our FAQ’s for further information on this.