Smoke protection is also vital.
Transfer grille with fire damper.
The lvh20s damper is a unique combination of intumescent slats to provide two hour fire resistance excellent insulation properties together with a servo powered set of shutter plates that control cold warm smoke.
Can be used to provide up to 180 minutes resistance to fire and hot smoke complete seal achieved in approximately two minutes when tested in accordance with bs 476.
It can be interfaced with a fire alarm panel through the lorient.
Use fire and smoke dampers from grainger in office buildings healthcare facilities and other buildings to prevent the spread of fire and smoke if that emergency should occur.
Ruskin fire and combin ation fire and smoke dampers with 1 1 2and 3 hour fire ratings may be installed in transfer opening and grille duct termination applications.
Installed inside hvac ductwork the damper blades automatically close when a rise in temperature occurs or a smoke alarm goes off.
Ibd20g static and dibd20g dynamic curtain type fire dampers for grille installation may be installed vertically in walls or horizon tally in floors with fire resistance ratings of less than 3 hours.
Wherever ventilation is needed through a fire resisting wall or where ductwork runs through that wall an intumescent fire damper should be fitted at that point to maintain fire compartmentation.
Fire and smoke resistant dampers air transfer grilles 5 heavy duty intumescent air transfer grille fire dampers designed for use in aggressive environments.
Ideal for low velocity air handling systems it can be operated as a stand alone unit or in multiple units.
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Select the damper with sleeve of sufficient length to fit flush with.
In everyday use air can pass freely through the grilles to allow good ventilation.
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We offer a range of intumescent grilles and dampers with an added smoke control shutter.
Our intumescent grilles and fire dampers combine air movement with fire protection.
These fire resistant air transfer grilles are developed to allow the free circulation of air at room temperature through construction elements walls doors etc while at the same time offering effective protection against flames smoke and gases in case of fire.
In a fire the intumescent expands fusing the grille into a solid block that stops fire spreading.
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