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PS/RWR-4 (RAL9016) • Variable swirl diffusers

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

Our adjustable steel and aluminum ceiling swirl diffuser in RAL9016 is designed for efficient air distribution in high suspended ceilings. Featuring an adjustable core, this diffuser allows easy airflow control for optimal comfort and energy efficiency. The robust design combines durability with a sleek, modern appearance, making it ideal for commercial HVAC installations.

Benefits & USPs:

  • Adjustable Airflow: Flexible control for maximum efficiency.
  • Ideal for High Ceilings: Perfect for large commercial spaces.
  • Durable & Stylish: Steel and aluminum construction in RAL9016.
  • Easy Installation: Designed for suspended ceilings.

Application

  • Instelbaar wervelrooster van staal en aluminium in RAL9016 voor hoge systeemplafonds. Flexibel, duurzaam en ideaal voor HVAC-systemen.

Material

  • Steel and aluminium combination

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

  • PS/RWR-4, 315


Explanation

PS/RWR-4 = Diffuser type

315 = Neck size of diffuser

Product drawing 1

Dimensions

TypeD1 [mm]D2 [mm]D3 [mm]H [mm]H1 [mm]H2 [mm]R [mm]
PS/RWR-4 20019824896180204030
PS/RWR-4 250248298133205304030
PS/RWR-4 315313398175230304030

Quick selection

PS/RWR-4200250315
QAk0.03050.04790.0765
Hm2,5 - 3,83,0 - 5,33,3 - 6
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) 3.42.4
Vk 3.52.2
Ps 207
Lw(A) 4429
800B(min)  3
Vk  2.9
Ps  14
Lw(A)  38
1000B(min)  3.8
Vk  3.6
Ps  22
Lw(A)  45

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.
  • For all special requirements, please contact our engineering office.

Placement instruction
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