Circular and square ceiling swirl diffusers
Nominal sizes 300, 400, 500, 600, 625
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
Ideal for comfort zones
Exposed diffuser face available in RAL Classic colours
Horizontal or vertical duct connection
Plenum box with cord-operated damper blade and pressure tap
Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.
Type TDF ceiling swirl diffusers have fixed blades. Air discharge is horizontal radial. The supply air to room air temperature difference can be -12 to +10 K. A damper blade (optional) simplifies volume flow rate balancing for commissioning. Pressure tap and cord-operated damper blade (optional) allow for volume flow rate balancing with the diffuser face in place. To give rooms an aesthetic, uniform look, type TDF diffusers may also be used for extract air.