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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
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
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/PPTMB
600/160
600/200
600/250
600/315
Q
Ak
0.1457
0.1457
0.1457
0.1457
B
1.2
2.4
3.6
1.2
2.4
3.6
1.2
2.4
3.6
1.2
2.4
3.6
150
Vz
H=
2.7
0.44
0.15
0.09
H=
3.2
0.17
0.1
0.07
H=
3.8
0.1
0.07
0.05
Vk
0.3
X0.25
1.7
Ps
0.4
Lw(A)
<20
200
Vz
H=
2.7
0.59
0.2
0.12
H=
3.2
0.22
0.13
0.09
H=
3.8
0.13
0.09
0.07
Vk
0.4
X0.25
1.9
Ps
0.7
Lw(A)
<20
250
Vz
H=
2.7
0.74
0.25
0.15
0.74
0.25
0.15
H=
3.2
0.28
0.16
0.11
0.28
0.16
0.11
H=
3.8
0.16
0.11
0.09
0.16
0.11
0.09
Vk
0.5
0.5
X0.25
2.1
2.1
Ps
1.1
1.1
Lw(A)
<20
<20
300
Vz
H=
2.7
0.89
0.3
0.18
H=
3.2
0.33
0.19
0.13
H=
3.8
0.19
0.13
0.1
Vk
0.6
X0.25
2.3
Ps
1.6
Lw(A)
<20
400
Vz
H=
2.7
1.18
0.39
0.24
1.18
0.39
0.24
H=
3.2
0.44
0.25
0.18
0.44
0.25
0.18
H=
3.8
0.25
0.18
0.14
0.25
0.18
0.14
Vk
0.8
0.8
X0.25
2.6
2.6
Ps
2.8
2.8
Lw(A)
<20
<20
600
Vz
H=
2.7
1.78
0.59
0.36
1.78
0.59
0.36
H=
3.2
0.67
0.38
0.27
0.67
0.38
0.27
H=
3.8
0.38
0.27
0.21
0.38
0.27
0.21
Vk
1.1
1.1
X0.25
3.3
3.3
Ps
5.2
5.2
Lw(A)
25
25
800
Vz
H=
2.7
2.37
0.79
0.47
H=
3.2
0.89
0.51
0.36
H=
3.8
0.51
0.36
0.27
Vk
1.5
X0.25
4
Ps
9.7
Lw(A)
34
1000
Vz
H=
2.7
2.96
0.99
0.59
H=
3.2
1.11
0.63
0.44
H=
3.8
0.63
0.44
0.34
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.