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RWR-FCSA (RAL9005) • Black circular swirl diffusers with fixed curved blades

Swirl ceiling diffusers with high induction rate, consisting of a circular plate with multiple fixed curved blades arranged in a circular pattern, to be equipped with galvanized steel plenum box

Brand

  • Cairox

Application

  • For air supply and exhaust in ventilation and air conditioning systems

Material

  • Steel

Colour

  • Black, RAL 9005
  • Other colours available upon request

Composition

  • Front plate made of powder coated steel
  • Central screw mounting

Mounting

  • Fixing by central screw in the crossbar of the plenum box.

Accessories

  • Circular plenum box, type RER-B
  • Insulated circular plenum box, type RER-B ISO
  • Regulating valve for plenum box, type CRC

Text for tender

Copy
  • The ceiling swirl diffusers are round with fixed, curved blades with high induction power and horizontal discharge. The front grilles and blades are made of steel. The diffusers are powder-coated black in RAL 9005. They are mounted in an insulated or non-insulated round plenum by means of a central concealed screw fixing. The galvanized steel plenums are provided with a perforated plate to obtain a homogeneous distribution over the grille and a flow regulator in the side connection.
  • Cairox type RWR-FCSA (RAL9005) + RER-B(ISO) + CRC

Order example

  • RWR-FCSA (RAL9005), 600 + RER-B 600 + CRC 250

Explanation

RWR-FCSA (RAL9005) = Diffuser type

600 = Diffuser size/swirl size

Accessories

RER-B = Type plenum box

600 = Size plenum box

CRC = Regulating valve for plenum box
250 = Plenum box connection diameter 250

Dimensions

 D [mm]D1 [mm]D2 [mm]D3 [mm]A#Blades
RWR-FCSA 300238862362964116
RWR-FCSA 4003381403363964122
RWR-FCSA 5004381704364964124
RWR-FSCA 6005381705365962224
RWR-FSCA 625*5381705366212224
* niet meer verkrijgbaar / n'est plus disponible / no longer available

Quick selection

RWR-FCSA300400500600625*
QAk0.0230.030.04650.070.07
B1.22.43.61.22.43.61.22.43.61.22.43.61.22.43.6
100 H=2.70.170.130.11            
VzH=3.20.140.110.09            
 H=3.80.110.090.08            
Vk1.2    
X0,250.9    
Ps7    
Lw(A)<20    
150 H=2.70.260.20.160.230.180.15         
VzH=3.20.20.170.140.180.150.13         
 H=3.80.170.140.120.150.130.12         
Vk1.81.4   
X0,251.61.3   
Ps175   
Lw(A)26<20   
200 H=2.70.340.260.210.290.230.20.210.170.14      
VzH=3.20.270.220.190.240.20.170.170.150.13      
 H=3.80.220.190.160.20.170.150.150.130.12      
Vk2.41.91.2  
X0,252.21.91.1  
Ps3082  
Lw(A)34<20<20  
250 H=2.70.430.330.270.360.290.240.250.20.17      
VzH=3.20.340.280.230.30.250.210.210.180.16      
 H=3.80.280.230.20.250.210.190.180.160.14      
Vk32.31.5  
X0,252.92.51.5  
Ps47133  
Lw(A)4124<20  
300 H=2.70.510.390.320.430.340.280.290.240.20.220.170.150.220.170.15
VzH=3.20.410.330.280.350.290.250.250.210.180.180.150.130.180.150.13
 H=3.80.330.280.240.290.250.220.210.180.170.150.130.120.150.130.12
Vk3.62.81.81.21.2
X0,253.73.21.91.21.2
Ps6719522
Lw(A)4730<20<20<20
400 H=2.7   0.560.440.370.380.310.260.290.240.20.290.240.2
VzH=3.2   0.460.380.330.320.270.240.240.20.180.240.20.18
 H=3.8   0.380.330.290.270.240.210.20.180.160.20.180.16
Vk 3.72.41.61.6
X0,25 4.72.91.91.9
Ps 33944
Lw(A) 3921<20<20
500 H=2.7   0.690.540.460.460.380.320.370.30.250.370.30.25
VzH=3.2   0.560.470.410.390.330.290.310.260.220.310.260.22
 H=3.8   0.470.410.360.330.290.260.260.220.20.260.220.2
Vk 4.6322
X0,25 6.442.72.7
Ps 511466
Lw(A) 4528<20<20
600 H=2.7      0.540.440.380.450.360.30.450.360.3
VzH=3.2      0.450.390.340.370.310.270.370.310.27
 H=3.8      0.390.340.310.310.270.240.310.270.24
Vk  3.62.42.4
X0,25  5.23.63.6
Ps  2099
Lw(A)  342323
800 H=2.7      0.70.570.490.610.480.410.610.480.41
VzH=3.2      0.590.50.440.50.420.360.50.420.36
 H=3.8      0.50.440.390.420.360.330.420.360.33
Vk  4.83.23.2
X0,25  7.95.65.6
Ps  351515
Lw(A)  433232
1000 H=2.7         0.760.610.520.760.610.52
VzH=3.2         0.630.530.460.630.530.46
 H=3.8         0.530.460.410.530.460.41
Vk   44
X0,25   88
Ps   2424
Lw(A)   3939

Symbols and specifications

  • Q = Air volume in m³/h
  • Ak = Effective surface (free area) in m²
  • B = Distance between the diffusers in m
  • H = Installation height of the diffusers in m
  • Vz = Maximum velocity at the occupied zone according to distance between the diffusers and installation height in m/s
  • Vk = Average effective velocity through the diffuser in m/s
  • X0.25 = Throw length in m at an end velocity 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 values are given for isothermal supply air. Throw distances for cooling conditions at -11K can be calculated by dividing 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 diffusers without damper of with fully opened damper.
  • The acoustic power values Lw(A) are given for diffusers 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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