- Heavy-duty intumescent air transfer grille for doors, walls and ducts.
- In the event of a fire, the slats fuse and give a complete seal in 2 minutes.
- Gives up to 2 hours resistance to fire.
- EI rating of 2 hours when used with a cover grille.
- Tested in accordance with BS 476 Parts 20 and 22:1987, BS EN 1634-1:2014, BS EN 1364-5:2017 and NEN 6069:2005+A1:2016.
- Galvanised steel framework protects graphite intumescent core by preventing inward deformation.
- Suitable for use in external walls and areas with high humidity.
- May be used horizontally or vertically.
- Compatible with Rytons 125mm Dia. AirCore® range.
ACFIRE125 – Rytons 125mm AirCore® Intumescent RytBlock
General Details
Free Area:
- 5,150mm² (51.5cm²) per unit.
Size:
- 118mm Dia. x 43mm D (see image gallery above).
- CAD drawing available by email.
Colours:
- Steel grey.
Composition:
- Z275 galvanised steel framework.
- Metal slats with graphite intumescent core.
Installation:
- Refer to the Documents tab above for fitting instructions according to application.
- Insert into Rytons 125mm Dia. AirCore® tube and bed into position with an intumescent sealant.
- Due to the majority of house fires starting inside the home, we recommend positioning the block at the internal end of the tube.
- Alternatively/additionally, if there is an identified risk of a fire starting externally, position the intumescent block behind the external grille.
- The upper edge of the intumescent grille should be no higher than 3m from floor level.
- The lower edge of the intumescent grille should be no closer than 200mm to floor level.
Handling Information:
- Weight: 0.17kg.
Reference Material:
- BS 476-20:1987 – Fire tests on building materials and structures. Method for determination of the fire resistance of elements of construction (general principles).
- BS 476-22:1987 – Fire tests on building materials and structures. Method for determination of the fire resistance of non-loadbearing elements of construction.
- BS EN 1634-1:2014 – Fire resistance and smoke control tests for door and shutter assemblies, openable windows and elements of building hardware. Fire resistance test for door and shutter assemblies and openable windows.
- BS EN 1364-5:2017 – Fire resistance tests for non-loadbearing elements. Air transfer grilles.
- European fire protection classification EI (Insulation). The ability of a specimen of a separating element to restrict the temperature rise of the unexposed face to below specified levels.
NBS Specification:
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Documents
AAC125LP – Rytons Super Acoustic LookRyt® AirCore®
44 dB (Dn,e,w).
7,400mm² (74cm²) Equivalent Area
7,400mm² (74cm²) Equivalent Area
AAC125HP – Rytons Super Acoustic Controllable LookRyt® AirCore®
43 dB open / 50 dB closed (Dn,e,w)
8,500mm² (85cm²) Equivalent Area
8,500mm² (85cm²) Equivalent Area
AC7HP – Rytons Baffled Controllable LookRyt® AirCore®
6,500mm² (65cm²) Equivalent Area
AC10HP – Rytons Controllable LookRyt® AirCore®
7,500mm² (75cm²) Equivalent Area
AC7LP – Rytons Baffled LookRyt® AirCore®
7,900mm² (79cm²) Equivalent Area
AC10LP – Rytons LookRyt® AirCore®
10,400mm² (104cm²) Equivalent Area
