A metal shell produced in two hinged halves, lined with intumescent material, to be placed around combustible pipes and fixed to compartment walls and floors with all steel anchors (supplied) to provide up to four hours fire protection.

Features and benefits:

  • Tested at Exova BM Trada to BS EN 1366-3.
  • Tested at Exova Warrington to BS 476-20.
  • Fully tested for up to 240 minutes' integrity and insulation.
  • Ultra-slim flange and body design ensures easy installation in awkward situations.
  • Tested at Exova BM TRADA.
  • Simple single click clasp.
  • Supplied with blockwork fixings.
  • 100 times minimum expansion of active product.
  • Water resistant.
  • Non-corrosive - inert product.


Used to seal plastic (unplasticized polyvinyl chloride (PVC-U), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (PVC-C), polypropylene (PP), polyethylene (PE), high density polyethylene (HDPE), polypropylene random copolymer (PPR), Friatherm and acrylonitrile butadiene styrene (ABS)) pipes as they pass through fire compartment walls and floors. In a fire, the intumescent lining of the metal collar expands and crushes the heat softened plastic pipe leaving a potential path for fire completely sealed.

Standard product features


Metal pre-lined with intumescent.



Fire resistance:

  • To BS 476-20: Up to four hours' integrity and insulation on block/ concrete.
  • To BS-EN 1366-3: Up to 60 minutes integrity and insulation on drywall or 120 minutes in conjunction with Firetherm Intubatt, blockwork or floors.

NBS Specification

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This product is associated with the following NBS Create clause:
45-45-70/436 Pipe collars

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Firetherm Intumescent and Insulation Supplies Ltd


+44 (0)1322 551010

Product reference



[55 mm]
[82 mm]
[110 mm]
[160 mm]
[200 mm]
[Special order]
Insert requirement, available up to 355 mm.

Manufacturer details

Unit F,
Acorn Industrial Park,
Crayford Road,
Kent, DA1 4FT
Tel +44 (0)1322 551010
Fax +44 (0)1322 552727
NBS Plus
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