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 Grilles are available in Grey or Red as standard. 

Flush Mounting Cover Grilles are available to suit your product.