- Heavy-duty intumescent air transfer grille for doors, walls, ducts and floors.
- 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 9×9 AirLiner® cavity liner.
TL20FIRE – Rytons 9×9 Intumescent RytBlock
General Details
Size:
- 192mm L x 207mm H x 43mm D.
Free Area:
- 22,520mm² (225.2cm²) per unit.
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 9×9 AirLiner® cavity liner 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 adjustable cavity liner sleeve.
- Alternatively/additionally, if there is an identified risk of a fire starting externally, position the intumescent block behind the air brick.
- 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: 0.674kg.
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:
Rytons is proud to be a family run business and British manufacturer since 1972
Certifire Certificate
Quote Request
Documents
TCL20 – Rytons 9×9 Ventilation Set with Louvre Ventilator
26,500mm² (265cm²) Equivalent Area
TC20HM – Rytons 9×9 Ventilation Set with Hit & Miss Ventilator
30,000mm² (300cm²) Equivalent Area
TAL9SET – Rytons 9×9 Acoustic AirLiner® Set with Louvre Ventilator
38 dB (Dn,e,w)
13,100mm² (131cm²) Equivalent Area
13,100mm² (131cm²) Equivalent Area
TAL9H&M – Rytons 9×9 Acoustic AirLiner® Set with Hit & Miss Ventilator
38 dB open or closed (Dn,e,w)
12,800mm² (128cm²) Equivalent Area
12,800mm² (128cm²) Equivalent Area