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PS/PPTMB (RAL9016) • Perforated diffusers for system ceilings

  • Perforated diffusers
  • Square
  • Steel
  • White, RAL 9016
  • 1-4 way supply pattern

Air supply diffusers with adjustable 1- to 4-way pattern perforated plate for mounting in 600 x 600 mm system ceilings.

Brand

  • Cairox

Application

  • For air supply in ventilation and air conditioning systems

Material

  • Frame: aluminium
  • Inner part: steel

Colour

  • Standard colour white, RAL 9016
  • Other colours available upon request

Composition

  • Perforated front plate in white finish RAL 9016 with incorporated plenum box
  • Perforated inner part to be opened easily by push-push system

Text for tender

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  • The square air supply system ceiling diffusers are of the multidirectional type with a perforated front plate and an incorporated plenum box. They are made of aluminium and steel with white powdercoating finish RAL 9016.
  • Cairox type PS/PPTMB

Order example

  • PS/PPTMB, 200

Explanation

PS/PPTMB = Diffuser type

200 = Diffuser size (connection diameter)

Dimensions

PS/PPTMB

A [mm]

ØN [mm]

160

595x595

160

200

595x595

200

250

595x595

250

315

595x595

315

Quick selection

PS/PPTMB600/160600/200600/250600/315
QAk0.14570.14570.14570.1457
B1.22.43.61.22.43.61.22.43.61.22.43.6
150VzH=2.70.440.150.09         
H=3.20.170.10.07         
H=3.80.10.070.05         
Vk0.3   
X0.251.7   
Ps0.4   
Lw(A)<20   
200VzH=2.70.590.20.12         
H=3.20.220.130.09         
H=3.80.130.090.07         
Vk0.4   
X0.251.9   
Ps0.7   
Lw(A)<20   
250VzH=2.70.740.250.150.740.250.15      
H=3.20.280.160.110.280.160.11      
H=3.80.160.110.090.160.110.09      
Vk0.50.5  
X0.252.12.1  
Ps1.11.1  
Lw(A)<20<20  
300VzH=2.7   0.890.30.18      
H=3.2   0.330.190.13      
H=3.8   0.190.130.1      
Vk 0.6  
X0.25 2.3  
Ps 1.6  
Lw(A) <20  
400VzH=2.7   1.180.390.241.180.390.24   
H=3.2   0.440.250.180.440.250.18   
H=3.8   0.250.180.140.250.180.14   
Vk 0.80.8 
X0.25 2.62.6 
Ps 2.82.8 
Lw(A) <20<20 
600VzH=2.7      1.780.590.361.780.590.36
H=3.2      0.670.380.270.670.380.27
H=3.8      0.380.270.210.380.270.21
Vk  1.11.1
X0.25  3.33.3
Ps  5.25.2
Lw(A)  2525
800VzH=2.7         2.370.790.47
H=3.2         0.890.510.36
H=3.8         0.510.360.27
Vk   1.5
X0.25   4
Ps   9.7
Lw(A)   34
1000VzH=2.7         2.960.990.59
H=3.2         1.110.630.44
H=3.8         0.630.440.34
Vk   1.9
X0.25   4.8
Ps   15.6
Lw(A)   42

Symbols and specifications

  • Q = Air Volume in m³/h
  • Ak = Effective surface (free area) in m²
  • B = Distance between diffusers in m
  • H = Installation height of the diffusers in m
  • Vz = Maximum velocity at the occupied zone regarding distance between diffusers and installation height in m/s
  • Vk = Average effective velocity through the grill in m/s
  • X0.25 = Throw length in m at an endvelocity Vt of 0,25m/s
  • Ps = Static pressure loss given in Pa
  • Lw(A) = Acoustic power in dB(A)


  • The throw X0.25 is given at an end velocity of 0.25m/s for a smooth ceiling without any obstacles.
  • The table values are given for the adjustable deflection plates set at its standard position to achieve an air flow pattern in 4 direction
  • The values are given for isothermal supply air. Throw distances for cooling conditions at -11K can be calculated by deviding the X0.25 values with factor 1.1. For heating purposes at Dt of +11K a multiplier of 1.1 should be applied to the given X0.25 value.
  • In order to achieve a high comfort level, selections can be made according to the maximal velocity at the occupied zone Vz. These values are given at distances between diffusers B and installation heights H. Velocities Vz lower than, or equal to 0,25m/s at the occupied zone are advised.
  • The pressure losses Ps are given for grilles without damper of with fully opened damper.
  • The acoustic power Lw(A) are given for grilles without damper of with fully opened damper without room attenuation. Acoustic powers below 20dB(A) are mentioned as "<20" in the tables.
  • For all special requirements, please contact our engineering office.

Placement instruction
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