Envirograf Intumescent Gaskets & Acoustic Covers
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References & Sizes
Gaskets for BESA boxes, universal conduit boxes, and socket or switch boxes
|ABG33/2||75mm x 75mm||50mm|
|ABG44/2||100mm x 100mm||50mm|
|ABG44/4||100mm x 100mm||100mm|
|ABG64/2||150mm x 100mm||50mm|
|ABG66/2||150mm x 150mm||50mm|
|ABG66/4||150mm x 150mm||100mm|
|ABG99/2||225mm x 225mm||50mm|
|ABG99/4||225mm x 225mm||100mm|
|ABG12/12/2||300mm x 300mm||50mm|
|ABG12/12/4||300mm x 300mm||100mm|
Gaskets for Standard Metal Boxes
|BEG||Standard BESA Boxes|
|DPG||Gasket for Double Metal Box|
|SPG||Gasket for Single Metal Box|
|CRG||Gasket for Ceiling Rose|
|ICRG||Internal Gasket for Ceiling Rose|
Acoustic & Fire Protection for Standard Metal Boxes
|SPG/APS/26||For Single Metal Box 26mm deep|
|SPG/APS/37||For Single Metal Box 37mm deep|
|SPG/APS/47||For Single Metal Box 47mm deep|
|DPG/APD/26||For Double Metal Box 26mm deep|
|DPG/APD/37||For Double Metal Box 37mm deep|
|DPG/APD/47||For Double Metal Box 47mm deep|
|DPG/K1N||For Quad Metal Box 47mm deep|
|CBG/APC||For Cooker Box|
Gaskets for Dry Lining Boxes
|SSB||Gasket set for Single Shallow Box (2 gaskets per set)|
|DSB||Gasket set for Double Shallow Box (2 gaskets per set)|
|SDB||Gasket set for Single Deep Box (2 gaskets per set)|
|DDB||Gasket set for Double Deep Box (2 gaskets per set)|
|TDB||Gasket set for Twinned Single Deep Box (4 gaskets per set)|
|3DB||Gasket set for Triple Deep Box (4 gaskets per set)|
|MTC||Square intumescent cover for Marshall-Tufflex or similar dry lining box|
|MTC/A||Acoustic & intumescent cover for Marshall-Tufflex or similar dry lining box|
Shallow & Deep Dry Lining Boxes (35mm or 44mm Deep) - Complete with Intumescent Gasket(s)
|GBOX/R||Circular ceiling rose box 32mm deep with intumescent gasket|
|GBOX/S||Single shallow box with intumescent gasket|
|GBOX/D||Double shallow box with intumescent gasket|
|GBOX/T||Twin shallow box with intumescent gasket|
|GBOX/SD||Single deep box with intumescent gasket|
|GBOX/DD||Double deep box with intumescent gasket|
Fire and Sound Trap for Electrical Boxes
These have integrated intumescent material for use in timber-framed houses, etc. The FST products are easy to install and they will fit all cavity depths, for single/double, shallow/deep switch/socket boxes.
FST/EXT are supplied with fixing pins. No pins are necessary for the internal products below.
|FST/EXT/S/S&D||Fire & Sound Trap External to fit Single Shallow & Deep Boxes|
|FST/EXT/D/S&D||Fire & Sound Trap External to fit Double Shallow & Deep Boxes|
|FST/INT/S/S||Fire & Sound Trap Internal to fit Single Shallow Boxes|
|FST/INT/D/S||Fire & Sound Trap Internal to fit Double Shallow Boxes|
|FST/INT/S/D||Fire & Sound Trap Internal to fit Single Deep Boxes|
|FST/INT/D/D||Fire & Sound Trap Internal to fit Double Deep Boxes|
Envirograf Intumescent Gaskets & Acoustic Covers offer fireproof protection for metal and plastic boxes used to house light switches, plug sockets and ceiling roses used for hanging lights and ceiling fans. The liners fit BESA boxes, universal conduit boxes, and socket or switch boxes, as well as special sizes for ceiling roses and
These intumescent liners expand in cases of fire to prevent flames and smoke spreading through a building, especially along easily-flammable wiring. Tests on boxes fitted without gaskets saw fire enter a partition wall in 4-5 minutes, whilst cables that run through back-to-back boxes in brick and block walls offered as little as 6 minutes of fire integrity.
Where conduits pass through fire-rated ceilings and walls, it is a requirement to terminate each side with a BESA or universal box fitted with intumescent gaskets to stop fire penetrating.
It is also a requirement to fit intumescent gaskets in the back of metal switch/socket boxes where they are back-to-back and cables pass through the wall.
All dry lining boxes and metal boxes fitted in dry-lining walls must have intumescent gaskets fitted to comply with the 17th Edition IEE Regulations.
To comply with Document E of UK Building Regulations (sound-proofing in plasterboard ceilings and walls), acoustic protection must be fitted for both impact and airborne sound.
Internal gaskets are made for the size of the plastic or metal box, with self-adhesive strips on the reverse for easy fixing into place. Holes can be cut in the gasket to allow for cables and wires to pass through, or the gasket cut to fit if services are already present.
Dry lining boxes in walls have two pads per box, made to size and adhered top and bottom.
Plasterboard ceiling rose boxes can be protected by means of an intumescent cover which folds up and is passed through the hole in the ceiling. A hole is then cut in the cover to receive the cables, which are then pulled through the cover, box and ceiling before connecting the ceiling rose.
Ceiling rose gaskets to fit over the ceiling rose or hook plate should be fitted where more than two cables pass through the ceiling. A hole is made in the gasket through which the cables are passed. The backing paper of the
IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.
Any Envirograf products to be used in or for Harrods department store should be authorised with our Technical Team prior to purchase.
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