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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.
This product has been used in a wide variety of projects using a com floor since its launch.
Most plumbing merchants who are located in areas that service tradespersons constructing multi level buildings (i.e. Auckland city centre) now stock this item on their shelves due to its popularity.
At the core of the Allproof passive fire protection product range is the advanced intumescent technology. This enables Allproof to offer products with performance and design advantages for engineers and installers of passive fire protection products.
Allproof’s intumescent material expands when exposed to heat and as its volume increases with significant expansion pressure, it produces a stable char. The intumescent char formed is a poor conductor of heat, retarding heat transfer and retaining the integrity and insulation of service penetrations through otherwise fire-resistance rated walls or floors.
A New Zealand owned company specialising in the manufacture of plumbing and drainage products and systems.
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