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RWR-4 (RAL9016) • Variable swirl diffusers

  • Swirl diffusers
  • Circular
  • Steel
  • White, RAL 9016
  • Manually adjustable blades

Our adjustable ceiling diffusers are engineered for HVAC systems in spaces with high ceilings. The adjustable core allows precise airflow control to meet your building’s requirements. Combining robust steel with lightweight aluminum and finished in RAL9016 (traffic white), these diffusers deliver a durable and visually appealing solution for modern commercial and industrial environments.

Benefits and USPs:

  • Adjustable Airflow: Flexible control for optimal comfort.
  • Premium Materials: Steel and aluminum for strength and lightness.
  • Sleek Finish: RAL9016 for a professional look.
  • Ideal for High Ceilings: Designed for large spaces and efficient air distribution.

Application

  • Adjustable steel and aluminum ceiling diffusers in RAL9016 for HVAC systems with high ceilings. Flexible airflow and durable quality.

Material

  • Combination of steel and aluminium

Colour

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

Composition

  • Manually adjustable blades with α = blade angle
  • Perforated plate in the collar of the diffuser

Order example

  • RWR-4, 400


Explanation

RWR-4 = Diffuser type

400 = Neck size of diffuser

Product drawing 1

Dimensions

 D1 [mm]D2 [mm]D3 [mm]D4 [mm]H [mm]H1 [mm]H2 [mm]R [mm]
RWR-4 20019824896350180204030
RWR-4 250248298133400205304030
RWR-4 315313398175500230304030
RWR-4 400398465175615270456060
RWR-4 500498565225780320356080
RWR-4 6306286652739353902580100
RWR-4 8007987983681020390080100

Quick selection

RWR-4200250315400500630800
QAk0.03050.04790.07650.12380.1940.30880.4989
Hm2,5 - 3,83,0 - 5,33,3 - 64,3 - 7,55,5 - 167,5 - 268,0 - 29
300B(min)2.41.6     
Vk2.71.7     
Ps135     
Lw(A)3524     
400B(min)32.22    
Vk3.62.31.5    
Ps2294    
Lw(A)443222    
500B(min)3.82.82    
Vk4.62.91.8    
Ps34135    
Lw(A)513924    
600B(min) 3.42.42.8   
Vk 3.52.21.3   
Ps 2074   
Lw(A) 442922   
800B(min)  32.8   
Vk  2.91.8   
Ps  145   
Lw(A)  3825   
1000B(min)  3.82.83.4  
Vk  3.62.21.4  
Ps  2294  
Lw(A)  453222  
2000B(min)   5.444.2 
Vk   4.52.91.8 
Ps   34135 
Lw(A)   534024 
3000B(min)    64.43
Vk    4.32.71.7
Ps    31134
Lw(A)    523523
4000B(min)     5.83.8
Vk     3.62.2
Ps     227
Lw(A)     4430
5000B(min)     7.24.8
Vk     4.52.8
Ps     3413
Lw(A)     5137
6000B(min)      5.8
Vk      3.3
Ps      18
Lw(A)      43

Symbols and specifications

  • Q = Air volume in m³/h
  • Ak = Effective surface (free area) of the neck of the diffuser in m²
  • Hm = Advised minimum - maximum mounting height in m
  • Bmin = Advised minimum distance between diffusers in m
  • Vk = Air velocity trough the neck of the diffuser in m/s
  • Ps = Static pressure loss in Pa
  • Lw(A) = Acoustic power in dB(A)

  • The values are given for isothermal supply air without Coanda effect.
  • The values in the table are given at an inclination angle α of the vanes of the diffuser set at 45°.
  • In order to achieve a high comfort level, the angle of the blades can be set according to the temperature difference Δt between the supply air and room air temperature. (see selection graphs)
  • Acoustic powers below 20dB(A) are mentioned as "<20" in the tables.

Placement instruction
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