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Intumescent Therm-A-Grille

From £14.10 Each (Prices shown exclude VAT)
Brand: Intumescent Seals
Product Code:
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100x100x38mm
150x150x38mm
200x200x38mm
225x225x38mm
250x250x38mm
300x300x38mm
350x350x38mm
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450x450x38mm
500x500x38mm
550x550x38mm
600x600x38mm
150x100x38mm
150x200x38mm
150x250x38mm
150x300x38mm
150x350x38mm
150x400x38mm
150x450x38mm
150x500x38mm
150x550x38mm
150x600x38mm
200x100x38mm
200x150x38mm
200x250x38mm
200x300x38mm
200x350x38mm
200x400x38mm
200x450x38mm
200x500x38mm
200x550x38mm
200x600x38mm
225x75x38mm
250x100x38mm
250x150x38mm
250x200x38mm
250x300x38mm
250x350x38mm
250x400x38mm
250x450x38mm
250x500x38mm
250x550x38mm
250x600x38mm
300x100x38mm
300x150x38mm
300x200x38mm
300x250x38mm
300x350x38mm
300x400x38mm
300x450x38mm
300x500x38mm
300x550x38mm
300x600x38mm
350x100x38mm
350x150x38mm
350x200x38mm
350x250x38mm
350x300x38mm
350x400x38mm
350x450x38mm
350x500x38mm
350x550x38mm
350x600x38mm
400x100x38mm
400x150x38mm
400x200x38mm
400x250x38mm
400x300x38mm
400x350x38mm
400x450x38mm
400x500x38mm
400x550x38mm
400x600x38mm
450x100x38mm
450x150x38mm
450x200x38mm
450x250x38mm
450x300x38mm
450x350x38mm
450x400x38mm
450x500x38mm
450x550x38mm
450x600x38mm
500x100x38mm
500x150x38mm
500x200x38mm
500x250x38mm
500x300x38mm
500x350x38mm
500x400x38mm
500x450x38mm
500x550x38mm
500x600x38mm
550x100x38mm
550x150x38mm
550x200x38mm
550x250x38mm
550x300x38mm
550x350x38mm
550x400x38mm
550x450x38mm
550x500x38mm
550x600x38mm
600x100x38mm
600x150x38mm
600x200x38mm
600x250x38mm
600x300x38mm
600x350x38mm
600x400x38mm
600x450x38mm
600x500x38mm
600x550x38mm
100mm Diameter
120mm Diameter
125mm Diameter
150mm Diameter
200mm Diameter
250mm Diameter
350mm Diameter
Available in the below colours:
Black
Other Quantities available and Bulk Offers:
Each £14.10
Each £16.98
Each £21.84
Each £22.72
Each £23.34
Each £33.23
Each £39.96
Each £48.51
Each £60.52
Each £69.12
Each £84.90
Each £97.02
Each £13.71
Each £20.61
Each £26.02
Each £31.28
Each £33.96
Each £37.60
Each £41.84
Each £46.09
Each £53.85
Each £17.53
Each £23.21
Each £24.74
Each £27.90
Each £32.75
Each £39.42
Each £40.02
Each £53.98
Each £56.60
Each £17.82
Each £18.63
Each £30.32
Each £35.78
Each £39.83
Each £44.87
Each £49.72
Each £57.00
Each £63.06
Each £19.57
Each £41.24
Each £48.27
Each £53.36
Each £61.85
Each £72.77
Each £23.84
Each £33.35
Each £36.03
Each £37.68
Each £38.69
Each £48.03
Each £55.76
Each £67.51
Each £80.71
Each £84.05
Each £28.06
Each £37.36
Each £43.36
Each £45.36
Each £48.60
Each £52.83
Each £57.22
Each £59.85
Each £76.70
Each £23.31
Each £50.69
Each £53.12
Each £64.27
Each £70.35
Each £78.34
Each £26.50
Each £55.79
Each £59.42
Each £87.62
Each £26.61
Each £41.90
Each £49.07
Each £66.70
Each £73.98
Each £77.62
Each £81.86
Each £94.60
Each £30.24
Each £76.41
Each £78.83
Each £81.98
Each £83.68
Each £92.17
Each £20.15
Each £20.35
Each £36.27
Each £55.53
Description
Specification
Additional Information
Product Downloads

Therm-A-Grille consists of two sheets of steel mesh that have been coated with a graphite based intumescent material. The coating thickness has been optimized to ensure rapid activation whilst maintaining a high free area and good air flow rate.

The sheets are folded to form a box section which gives the assembly high strength and rigidity, provides a flange for fixing and carries an intumescent edge seal. There is very little heat transfer between the two grille plates to ensure good insulation.

Therm-A-Grilles are 38mm thick for fitting to any 30 minute or 60-minute fire door.  Please note that all sizes are listed as width x height.

Therm-A-Grille is available in stock sizes ranging from 100 x 100mm up to 600 x 600mm, in 50mm steps, in any combination of width and height. It can also be produced to special order in any intermediate size.

Therm-A-Grille is fitted as supplied into any vertical aperture and does not require any additional mastic sealant to its perimeter. Fixing should be by 2” No. 8 steel screws at 150mm centres through the mesh forming the flange.

The grille should be fitted centrally within the thickness of the fire resisting element. For stud and plaster walls or any element where a void is present a steel sleeve should be provided to line the full depth of the aperture. to its perimeter. Fixing should be by 2” No. 8 steel screws at 150mm centres through the mesh forming the flange.

The grille should be fitted centrally within the thickness of the fire resisting element. For stud and plaster walls or any element where a void is present a steel sleeve should be provided to line the full depth of the aperture. Facia or louvre plates may be fitted to the substrate surface.

There is often a requirement for a ventilation aperture to be cut into a fire resisting compartment wall or door. This penetration breaches the integrity of the element so it is necessary to fit a suitable fire resistant ventilator unit.

Therm-A-Grille offers a specially designed solution to the problem by providing a light weight intumescent ventilator core with excellent airflow characteristics and rapid activation in the event of a fire.

The fire performance of Therm-A-Grille has been proved in tests carried out to BS 476 Part 22 1987 where a grille measuring 570 x 570mm obtained an integrity and insulation rating of 66 minutes when mounted in a fire door panel. The free area of the grille is over 50% so the 600 x 600mm size vent has an effective ventilation aperture of 185,000mm2.

Technical PDFs
Therm-A-Grille.pdf
Date Added: 17/08/2017
File Type: pdf
Test Evidence
Chiltern test RF99141B.pdf
Date Added: 30/11/2017
File Type: pdf
Description

Therm-A-Grille consists of two sheets of steel mesh that have been coated with a graphite based intumescent material. The coating thickness has been optimized to ensure rapid activation whilst maintaining a high free area and good air flow rate.

The sheets are folded to form a box section which gives the assembly high strength and rigidity, provides a flange for fixing and carries an intumescent edge seal. There is very little heat transfer between the two grille plates to ensure good insulation.

Therm-A-Grilles are 38mm thick for fitting to any 30 minute or 60-minute fire door.  Please note that all sizes are listed as width x height.

Specification

Therm-A-Grille is available in stock sizes ranging from 100 x 100mm up to 600 x 600mm, in 50mm steps, in any combination of width and height. It can also be produced to special order in any intermediate size.

Therm-A-Grille is fitted as supplied into any vertical aperture and does not require any additional mastic sealant to its perimeter. Fixing should be by 2” No. 8 steel screws at 150mm centres through the mesh forming the flange.

The grille should be fitted centrally within the thickness of the fire resisting element. For stud and plaster walls or any element where a void is present a steel sleeve should be provided to line the full depth of the aperture. to its perimeter. Fixing should be by 2” No. 8 steel screws at 150mm centres through the mesh forming the flange.

The grille should be fitted centrally within the thickness of the fire resisting element. For stud and plaster walls or any element where a void is present a steel sleeve should be provided to line the full depth of the aperture. Facia or louvre plates may be fitted to the substrate surface.

Additional Information

There is often a requirement for a ventilation aperture to be cut into a fire resisting compartment wall or door. This penetration breaches the integrity of the element so it is necessary to fit a suitable fire resistant ventilator unit.

Therm-A-Grille offers a specially designed solution to the problem by providing a light weight intumescent ventilator core with excellent airflow characteristics and rapid activation in the event of a fire.

The fire performance of Therm-A-Grille has been proved in tests carried out to BS 476 Part 22 1987 where a grille measuring 570 x 570mm obtained an integrity and insulation rating of 66 minutes when mounted in a fire door panel. The free area of the grille is over 50% so the 600 x 600mm size vent has an effective ventilation aperture of 185,000mm2.

Product Downloads
Therm-A-Grille.pdf
Date Added: 17/08/2017
File Type: pdf
Chiltern test RF99141B.pdf
Date Added: 30/11/2017
File Type: pdf

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