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Fire Rated Diffusers Mainfranken Series

Fire Rated Diffusers, fitted into the ceiling plenums, available in supply and extract only.


Fire Rated Diffusers – PHS Mainfranken Series

In a fire situation, the integral intumescent material rapidly expands to seal off the air valve and reinstate the fire resistance rating of the ceiling. This limits the risk of fire and heat spread throughout the building.

  • Fitted into the ceiling plenums.
  • Available in supply only and extract only.


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Available Sizes

Sizes: Supply/Extract Product Code:
125mm Extract HRV003K
125mm Supply HRV003I
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