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Square ceiling diffuser – ACD4+D


Frame: High-quality aluminium sheets of 1.2mm thickness
Core: High-quality aluminium sheets of 1mm  thicknessDamper frame and Blades: High quality extruded aluminium profile with natural aluminium finish. Black matt finish as an option


Square Ceiling Diffuser

  • The frame and blades are of high quality extruded aluminium profiled construction with the advantages of corrosion resistance and rigidity.
  • Louvered type core or  is fixed to the frame with aluminium pins loaded with steel springs. Core can be easily removable and interchangeable to allow for maximum flexibility in installation, maintenance and damper adjustment.
  • Damper is fixed rigidly to the frame by aluminium rivets. Fixing by spring clips as option.
  • Damper blades are separated from its frame by nylon bushes.
  • Opposed blade damper is screw operated from the face opening of the diffuser after removing the internal core. Lever operated damper as option.
  • Foam gasket is sealed around the back of the frame as option to avoid air leakage.
  • Suitable for flush mounting in lay in type ceiling.
  • Stamped frame and core available.
  • Available in rectangular sizes as option.
  • One , two and three way discharge pattern arrangement shown below.

Optional Accessories

  • Damper
  • Equalizing Grid
  • Filter
  • Plenum Box
  • Adapter with round or square neck

Frame and core: High quality extruded aluminium profile with 33 mm flange width.

Available Air patterns :
Square ceiling diffuser air patterns

Air pattern Square Rectangular
One way Square - One way pattern Rectangle - One way pattern
Two way Square - Two way pattern Rectangle - Two way pattern
Two way corner Square - Two way corner pattern Rectangle - Two way corner pattern
Three way Square - Three way pattern Rectangle - Three way pattern
Four way Square - Four way pattern Rectangle - Four way pattern

Standard sizes:

  • Available in square and rectangular sizes.
  • Any combination of W x D.
W = width in mm 150 225 300 375 450 525 600
D = depth in mm 150 225 300 375 450 525 600

False ceiling sizes:

Duct size in mm x mm 150 x 150 225 x 225 300 x 300 375 x 375 450 x 450 525 x 525 600 x 600
False ceiling opening size 230 x 230 305 x 305 380 x 380 455 x 455 530 x 530 605 x 605 680 x 680

Fixing details:

Concealed screw fixing from neck of the diffuser to the duct, after removing the inner core.

Square Diffusers Product Summary:

Square ceiling diffuser


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