60-Minute Intumescent Air Transfer Vents & Covers
Product Description
Cover sizes are the aperture size that they are designed to cover i.e. order the same size cover as the intumescent block. Order 2 covers per intumescent block.
Ventilation including air-conditioning, ductwork or simply cutting holes for ventilation within buildings can contravene British Standards when installed into fire doors or compartment walls. One answer comes in the form of an intumescent block which allows air to flow through under normal conditions but closes under its own expansion when exposed to a fully developed fire.
The large range of square and rectangular vents we offer are available for prompt dispatch direct from the factory ensuring both strict batch control and compliance with stringent manufacturing standards.
By design the dampers offer low maintenance having no moving parts hence no need for regular maintenance apart from inspection to ensure they have not been damaged. For an air transfer grille that also offers smoke control please contact our customer services team.
Ventilation Grille Covers
Our range of ventilation covers offer an excellent robust 'face fit' option complementing the intumescent air transfer fire block range.
The pressed steel covers are 'zinctec' coated before painting to a satin silver finish. Covers can also be supplied to match any BS or RAL colour reference. Please contact our customer services team with your enquiries.
Covers are promptly shipped direct from the factory and are supplied drilled for screws (not supplied).
As the illustration indicates the intumescent block must be bedded in with intumescent mastics.
•Special sizes including circular available on request
•60-minute - BS476:22 on this range
•120-minute version also available & manufactured to order
