Pressure Relief Dampers (PRD) There are no products in this category.

Inert Gas Pressure Relief Dampers

Positive Function

The Inert Pressure Relief Damper Fire Integrity Section is fitted with balanced weighted blades, hinged on stainless steel rods and bronze bearings. The precision engineering and blade overlap provides a positive shutter to the wall opening and minimum leakage

Intrinsic Sound Absorption

All Pressure Relief Dampers are available with an external Self Closing Door or ‘Cat Flap’, held in place with a magnetic catch. This provides weather proofing when used on external walls, an intrinsic sound barrier and a positive air, dust & noise seal

Thermal Barrier

The Self Closing Door or ‘Cat Flap’ will provide a natural thermal barrier between the two areas, ideal when fitted in external walls. This will help to prevent condensation forming on the Inner Fire Section blades. Additional insulation can be fitted to increase the thermal and sound absorption characteristics

Chemical Gas "Dual Flow" Pressure Relief Dampers

Positive Function

The Dual Flow damper Inner Fire Section is fitted with balanced weighted blades, hinged on stainless steel rods and bronze bearings. The precision engineering and blade overlap provides a positive shutter to the wall opening and minimum leakage

Intrinsic Sound Absorption

All Dual Flow Dampers are fitted with integral ‘Cat Flap’ or positive shutoff closing door held in place with a magnetic catch - this provides an intrinsic sound barrier and a positive air, dust and noise seal

Thermal Barrier

The integral ‘Cat Flap’ will Provide a natural thermal barrier between the two areas, ideal when fitted in external walls, this will help to prevent condensation forming on the Inner Fire Section blades. Additional insulation can be fitted to increase the thermal and sound absorption characteristics

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