Intumescent Fire Collars & Sleeves

Intumescent fire collars and sleeves are passive fire protection products designed to seal service penetrations where pipes or cables pass through fire-resistant walls and floors. In the event of a fire, the intumescent material expands, closing gaps created by melting plastic pipes or cable insulation and helping to maintain fire compartmentation.

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Why Are Intumescent Fire Collars and Sleeves Important?

Unprotected service penetrations can allow fire and smoke to spread rapidly between compartments. Intumescent fire collars and sleeves help restore the fire-resistance of walls and floors, supporting compliance with building regulations and fire safety standards. They are a critical component of any passive fire protection strategy in residential, commercial, and industrial buildings.

Where Are Intumescent Fire Collars and Sleeves Used?

These products are commonly installed around plastic pipes, bundled cables, and mixed services that penetrate fire-rated structures. Typical applications include apartment buildings, offices, hospitals, schools, and industrial premises where maintaining fire separation is essential.

Choosing the Right Intumescent Fire Collars and Sleeves

Selecting the correct intumescent fire collars and sleeves depends on pipe material, diameter, substrate type, and required fire resistance period. Always ensure products are tested and certified for the specific application and installed in accordance with manufacturer guidance and relevant standards.

Supporting Passive Fire Protection Compliance

Correctly specified and installed intumescent fire collars and sleeves help demonstrate compliance with passive fire protection requirements, supporting fire risk assessments, inspections, and long-term building safety.

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angled view of a long reddish astro pillow sausage flat with a textured fabric and a small tag attached

Astroflame Intumescent Fire Pillows

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  • 120 minute fire rating
  • Available in 3 sizes - Sausage, Small, Large
  • Certified to EN 13501-2
5 out of 5 stars

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£7.29 ex VAT

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angled view of astroflame pfp putty pad internal single installed flat showing red interior and white outer edges

Astroflame Intumescent Putty Pads for Internal Electrical Sockets

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  • Provides up to 90 minutes fire resistance
  • Available in single or double sized pads
  • Tested to EN 1366-3: 2004 and BS EN 1364-1
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£2.49 ex VAT

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Angled view of an astroflame 4hr intumescent pipe collar 32mm showing the red metal collar and fixing tabs

Small 4hr Intumescent Pipe Collars - Astroflame

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  • 240 minute fire rating
  • Suitable for pipe diameters of 32mm - 55mm
  • Tested to BS 476: Part 20 and EN 1366: Part 3
4.3 out of 5 stars

From: £17.84 inc VAT

£14.87 ex VAT

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Angled view of astroflame 4hr intumescent pipe collar 90mm in bright red with black interior lining

Medium 4hr Intumescent Pipe Collars – Astroflame

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  • 240 minute fire rating
  • Suitable for pipe diameters of 110mm - 160mm
  • CE and UKCA marked
5 out of 5 stars

From: £20.95 inc VAT

£17.46 ex VAT

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Astroflame 4hr intumescent pipe collars large shown at an angle with a red metal outer ring and black inner lining

Large 4hr Intumescent Pipe Collars – Astroflame

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  • 240 minute fire rating
  • Suitable for pipe diameters of 200mm
  • CE and UKCA marked
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£123.19 inc VAT

£102.66 ex VAT

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End view of thermal pipe sleeve 17mm showing insulation material and silver outer covering

Astroflame Thermal Fire Rated Pipe Sleeve

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  • 120 minute fire rated
  • Available for pipe diameters from 17 - 169mm
  • Tested to BS 476-20/22
4 out of 5 stars
£28.57 inc VAT

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£21.21 ex VAT

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Angled view of intumescent duct sleeve 110mm with reflective silver outer covering and dark inner material

Astroflame Intumescent Duct Sleeve

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  • 120 minutes fire rating
  • Available in various widths from 110 - 308mm
  • Tested to BS 476 parts 20 & 22
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From: £38.58 inc VAT

£32.15 ex VAT

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Edge view of affbatt60 showing fire batt insulation panel with white coating and label

Astroflame Fire Resistant Batt

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  • 240 minute fire rated
  • Available in two size: 140Kgm² & 160Kgm²
  • Tested to BS 476: Part 20
  • Certifire approved
5 out of 5 stars

From: £51.65 inc VAT

£43.04 ex VAT

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astroflame 4hr intumescent pfp fr pipe wrap 55mm showing front view with black and white grid pattern

Astroflame 4hr Intumescent PFP FR Pipe Wraps

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  • Up to 240 minute fire rated
  • Suitable for pipe diameters of 55mm - 160mm
  • CE marked and tested to BS EN 13501 parts 1 & 2
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£4.99 ex VAT

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angled view of a single box insert made from a rough textured brown material with a contoured shape inside

Astroflame Fire and Acoustic Socket Box Insert

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  • 120 minute fire rated
  • Available for single and double sockets
  • Tested to BS EN 1363-1 and 1364-1
4.4 out of 5 stars

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£4.04 ex VAT

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Angled view of a single box cover showing textured grey material and two metal pins inside

Astroflame Intumescent Socket Box Cover

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  • 120 minute fire rated
  • Available in single or double box sizes
  • Tested to BS 476-20
4 out of 5 stars

From: £16.10 inc VAT

£13.42 ex VAT

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Front view of an intumescent downlight cover small showing its cone shape and small openings

Astroflame Intumescent Downlight Cover

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  • 60 minute fire rating
  • Available in a range of diameters: 150 - 350mm
  • Tested to BS EN 1365-2: 2000
4 out of 5 stars
£15.98 inc VAT

From: £14.78 inc VAT

£12.32 ex VAT

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angled view of the astroflame fire rated luminaire canopy single showing its textured surface and shape

Astroflame Fire Rated Luminaire Canopy

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  • 60 minute fire rating
  • Available in a range of heights: 300 - 1200mm
  • Tested to BS 476-20 & 23 clause 5
  • Certifire approved
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From: £41.45 inc VAT

£34.54 ex VAT

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astroflame fire rated luminaire cover small shown from an angled view displaying its square shape and textured surface

Astroflame Fire Rated Luminaire Cover

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  • 60 minute fire rated
  • Available in 2 sizes: Square or Rectangle
  • Tested to BS 476-23
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From: £81.98 inc VAT

£68.32 ex VAT

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