250 x 250 Intumescent Air Transfer Block - Fire Doors
CVATG - Intumescent Air Transfer Block
Intumescent Air Transfer Block
CVE Shop Air Transfer Blocks provide protection against the spread of fire through walls, doors, air ducts and openings in fire-resisting constructions such as partitions and doors and have been specifically developed for installation in particularly aggressive humid environments.
Combines air movement with fire protection
Provides resistance to fire and smoke up to 60 minutes in doors and walls
Completely seals in approximately 5 minutes when tested in accordance with BS476: Parts 20/22.
Can be used with a cover grille to ensure a neat appearance and extra privacy.
Allows two directional air flow
Simple to install
No maintenance required
The blocks are made from a rectangular extrusion of uPVC filled with an intumescent core. In the event of fire the effect of heat causes the intumescent core to expand, sealing off the duct or opening against the passage of flames and hot gases.
CVE Shop Air Transfer Blocks are available in Grey or Red as standard.