Square Swirl Diffusers PSB

Model PSBPSB

247094 SquareSwirlDiffuserPSB Com 247094 SquareSwirlDiffuserPSB CDia 1 247094 SquareSwirlDiffuserPSB CDia 2
247094 SquareSwirlDiffuserPSB Com 247094 SquareSwirlDiffuserPSB CDia 1 247094 SquareSwirlDiffuserPSB CDia 2

The Polyaire PSB Swirl Diffuser has fixed spiral blades that create rotational as well as axial, tangential and radial air movement. This means that it produces a strong horizontal swirl, obtaining high inductivity, to allow the introduced flow to rapidly mix with the ambient air to reduce temperature and also perceived drafts or hot/cold spots.

Velocity is reduced while still maintaining volume and reduced noise and this product is ideally suited to handling large volumes. The PSB maintains high quality air diffusion throughout the space with minimal temperature variation. The Swirl effects ensure good mixing of supply and ambient air. 

The PSB is also suitable for return air application due to low pressure drop across the grille. The standard PSB is made of cold rolled galvanized plate steel powder coated white (RAL9010 or RAL9016). Other colours are available on request.

Other finishes are available to suit the interior and architectural design requirements. The face plate is 595mm square and suitable for surface mounting in the ceiling or alternatively as a lay-in for T-Bar ceiling installations.

We can also offer these to fit into a Tegular ceiling with either 8mm or 16mm drop. Please contact our sales team for further information.

Model PSB

Sizes Available/Dimensions  
Item #   Face Size/Neck Size (mm)   Q     L Colour
mm   inch mm   inch
 247094  PSB Q 595/254  595  23”  254  10” 9010 & 9016
247095  PSB Q 595/336 595   23” 336   13” 9010 & 9016
 247096  PSB Q 595/440  595  23” 440   17” 9010 & 9016
 247097  PSB Q 595/530  595  23” 530   21” 9010 & 9016

 247094 SquareSwirlDiffuserPSB CDia 1247094 SquareSwirlDiffuserPSB CDia 2

Model PSB - Quick Selection
Specs Air Volume m3/h Pressure Loss (Pa) Noise (dB)
254 100 6.5 <20 
150 13 24 
250 35 37 
400 90 53 
500 140 65 
336 150 4.5 <20 
200 9 <20 
300 18 28
400 36 38
500 50 44
440 180 4.5 <20 
250 8 <20 
350 15 27 
550 38 42 
700 60 47 
530 300 6 <20
400 10 22
600 20 32
800 38 42
1200 85 55
Model PSB - Air Return
Specs Air Volume m3/h Pressure Loss (Pa) Noise (dB)
254 150 18 26
200 35 33
300 80 42
400 145 55
336/440 200 8 22
300 16 33
400 30 42
500 45 46
700 80 55
530 200 5.5 <20
300 13 20
400 22 27
500 35 35
700 60 43