Passive Fire Protection | Drop In Fire Collar

Drop In Fire Collar

Allproof Drop in fire collars provide a simple and effective passive fire rating option for thin concrete floors or trapezoidal steel tray concrete floors. These 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.

Full Brochure

Brochure

Product Options
Codes & Drawings
Technical Details

40mm

50mm

65mm

80mm

100mm

150mm

Extendable 40mm

Extendable 50mm

Extendable 65mm

Extendable 80mm

Extendable 100mm

Standard

Code	Description	.pfd File	CAD File
DIFC40	40mm Allproof Drop In Fire Collar	DIFC40.pdf(307 KB)	DIFC40.dwg(244 KB)
DIFC50	50mm Allproof Drop In Fire Collar	DIFC50.pdf(317 KB)	DIFC50.dwg(263 KB)
DIFC65	65mm Allproof Drop In Fire Collar	DIFC65.pdf(302 KB)	DIFC65.dwg(252 KB)
DIFC80	80mm Allproof Drop In Fire Collar	DIFC80.pdf(309 KB)	DIFC80.dwg(267 KB)
DIFC100	100mm Allproof Drop In Fire Collar	DIFC100.pdf(312 KB)	DIFC100.dwg(277 KB)
DIFC150	150mm Allproof Drop In Fire Collar	DIFC150.pdf(357 KB)	DIFC150.dwg(380 KB)

Extendable 210

Code	Description	.pfd File	CAD File
DIFC40X210	40mm Allproof Drop In Fire Collar Extendable up to 210mm	DIFC40X210.pdf(137 KB)	DIFC40X210.dwg(367 KB)
DIFC50X210	50mm Allproof Drop In Fire Collar Extendable up to 210mm	DIFC50X210.pdf(140 KB)	DIFC50X210.dwg(162 KB)
DIFC65X210	65mm Allproof Drop In Fire Collar Extendable up to 210mm	DIFC65X210.pdf(142 KB)	DIFC65X210.dwg(169 KB)
DIFC80X210	80mm Allproof Drop In Fire Collar Extendable up to 210mm	DIFC80X210.pdf(148 KB)	DIFC80X210.dwg(171 KB)
DIFC100X210	100mm Allproof Drop In Fire Collar Extendable up to 210mm	DIFC100X210.pdf(149 KB)	DIFC100X210.dwg(186 KB)

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:

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

For test results please see our Fire Brochure literature.

Fire-Penetration-Schedule.xlsx(13 KB)