Circular & Square Fixed Swirl Diffusers (SWB) are suitable for Supply of Cool & Warm Air with a large temperature differential, making these units ideal for Fan Coil Units, VAV and VRF Systems. Also suitable for Extract/ Return Air applications.
SWB diffusers are manufactured from Galvanised Steel.
Standard finish is RAL9010 or polyester powder coated to the customers colour requirement.
Plenum boxes are accessories for use with Grilles and Diffusers. They are designed to equalise the pressure profile within the box and hence provide an even velocity at the face of the Grille or Diffuser without the use of Equalising Grids.