Envirograf AVG/F Acoustic & Fireproof Ventilation Grille
  • Envirograf AVG/F Acoustic & Fireproof Ventilation Grille

Envirograf AVG/F Acoustic & Fireproof Ventilation Grille

Product 133

Use an AVG/F Acoustic & Fireproof Ventilation Grille for sound and fire protection through partition walls.

  • Refer to sizes below
  • 2 parts supplied, for each side of an opening
  • Allows ventilation of rooms
  • Up to 60 minutes fire protection

Shipping Options (Select at Checkout):

Economy Shipping (10-14 Working Days): £10 +VAT
Express Shipping (2-3 Working Days): £25 +VAT

VAT excluded

£68.68 Tax incl.


Sizes & Ordering References:

Please note: The grille protrudes by 25mm each side

Ref Hole Size (Height x Width): External Grille Size (Height x Width):
AVG/F/1515 150mm x 150mm 170mm x 170mm
AVG/F/1530 150mm x 300mm 170mm x 320mm
AVG/F/1540 150mm x 400mm 170mm x 420mm
AVG/F/2020 200mm x 200mm 220mm x 220mm
AVG/F/2030 200mm x 300mm 220mm x 320mm
AVG/F/2040 200mm x 400mm 220mm x 420mm
AVG/F/2525 250mm x 250mm 270mm x 270mm
AVG/F/3030 300mm x 300mm 320mm x 320mm
AVG/F/3535 350mm x 350mm 370mm x 370mm
AVG/F/4040 400mm x 400mm 420mm x 420mm
AVG/F/4545 450mm x 450mm 470mm x 470mm
AVG/F/5050 500mm x 500mm 520mm x 520mm

Use the Envirograf AVG/F Acoustic & Fireproof Ventilation Grille on doors and partition walls, ventilating whilst absorbing sound and providing up to 60 minutes of fire protection.

The grille consists of 2 parts for each side of an opening, with the internals coated in micro-acoustic material, with intumescent strips on the two long sides of the risk side opening to provide fire resistance properties. These strips expand when attacked by fire, expanding to seal gaps to prevent the spread of smoke and fire.

To accommodate the grille the ventilation aperture must be at least 10mm larger than the height between upper and lower opposing slot limits (the slots should be vertically opposite each other not directly opposite each other when the grilles are fitted)

Material specifications:

  • Zintec steel plate grilles
  • Fire rated sponge
  • Intumescent strips protecting the risk side


Ensure ventilation aperture is at least 10mm larger than the height between the upper and lower opposing slot limits. Screw grille plates in place on either side of the opening ensuring the ventilation slot is at the top on one side and the bottom on the other so that they are vertically opposite (not directly opposite each other). Note: the grille plates will protrude by 25mm on each side.

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 ConditionsWe 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.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details
Product 133

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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