A slim block-type intumescent grille giving an excellent free ventilation area.
For ceilings, doors, walls and ventilation ducting.
Openings are be sealed off in under one minute when attacked by fire.
Can be made...
The grille can be used on partition walls and doors to prevent fire passing from one room to another when acoustic protection is also needed.
Hole size - height x width
Overall size - 20mm on each dimension
Circular Intumescent Door and Cupboard Vents Providing 60 Minutes of Fire Protection.
Easy to fit.
Sizes (for door thickness 35mm - 56mm)
Hole diameter 55mm - Overall size 70mm
Hole diameter 75mm - Overall size...
A fibre free intumescent sleeve which allows the expansion and contraction of ventilation ducting, giving protection from fire, smoke and corrosion.
Consists of a 140mm pipe section which fits tightly inside the end...
Fire rated flue inspection hatch for walls and ceilings.
Provides 1-2 hours fire protection.
Intumescent lining will seal the aperture in a fire, whether in the open or closed position.
Internal, spring-loaded locking...
A cover for fan units mounted on windows. The cover fits around the fan unit and is affixed to the wall or window. The unit is fronted with an MG Grille (Product 35), fitted with intumescent strips to expand in a fire...
A flat plate intumescent grille for doors or walls providing up to 73 minutes of fire protection. There is a choice of either a plain slot type for more ventilation or a louvered slot that reduces viewing.
They can be...
A metal intumescent soffit ventilation grille to fit new or to replace plastic grilles.
Designed to prevent flames entering the roof space.
Two types - Available to fit;
Circular opening, 68mm diameter (overall 82mm...
A circular intumescent non-clogging ventilator sleeve for walls and ceilings with 87% free area.
It is easily installed and used in steel or PVC pipes connected to toilet ventilation fans.
Envirograf Product 33
A cover for fan units mounted on walls . The cover fits around the fan unit and is affixed to the wall. The unit is fronted with an MG Grille (Product 35), fitted with intumescent strips to expand in a fire and seal...
Envirograf Product Guide to Passive Fire Prevention Products
Including detailed descriptions of the entire Envirograf range
Read this useful guide to selecting the right passive fire prevention products.
Showing 1-17 of 17 item(s)
Fireproof and acoustic ventilation grilles, outlets, fan covers, and gas flue hatches.