Back to Diffusers Back to Grilles & Diffusers

Swirl diffuser – Adjustable – ASD-A


Diffuser: 1.2mm (or) 1.5mm thick aluminium sheet.
Diffuser Blades: 
Easily rotatable plastic blades.
Standard size 250 dia.
600mmx600mm, 595mmx595mm.
20 gauge (or) 22 gauge thick GI sheet.


Swirl diffuser is generally used in high ceiling applications of up to 4.5m. The supply air rapidly mixes with the room air in a swirling pattern.  The air pattern can be controlled by adjusting the individual blades manually. Moreover the design of swirl diffuser is aesthetically appealing and chosen by several architects.
Adjustable Swirl diffuser

  • Diffuser is made by punching high quality aluminium sheet and fixed with easily rotatable plastic blades.
  • The slotted circular face design with easily adjustable plastic blades provides both horizontal and vertical projection of air discharge all over the occupant area.
  • Supply air jet velocity is effectively reduced due to high mixing effect.
  • Ability to create either an external or internal swirl.
  • Diffuser can be fixed up to a height of 4.5m.

Standard finishes:

Swirl diffuser - Adjustable

  • Powder coated as per RAL color codes.
  • Plenum Neck size 250dia, Module size 600x600mm
  • Neck size measured in mm dia.
  • Static pressure loss across the diffuser in mm of H2O
  • Throw (meters) is measured for a terminal velocities of 0.5 & 0.25 m/sec.
  • Noice criteria (NC) is based on room attenuation of 10dB.


Back to Swirl Diffuser