Circular air diffuser FD

squareceilinginduction

FOR COMFORT ZONES, WITH FIXED AIR CONTROL BLADES Circular and square ceiling swirl diffusers that create high induction levels, for high room air change rates Nominal sizes 300, 400, 500, 600, 625 Volume flow rate range 9 – 235 l/s or 31 – 846 m³/h Diffuser face made of galvanised sheet steel, powder-coated For supply and extract air For variable and constant volume flows For all types of ceiling systems, and with an extended border also suitable for freely suspended installation High induction results in a rapid reduction of the temperature difference and airflow velocity Air change rates of up to 35 per hour can be achieved by arranging several diffusers in a row with a minimum pitch of 0.9 m (centre line to centre line) Ideal for comfort zones Optional equipment and accessories Exposed diffuser face available in RAL CLASSIC colours Plenum box with cord-operated damper blade and pressure tap