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RWR-4 (RAL9010) • Variable manual swirl diffusers

  • Swirl diffusers
  • Circular
  • Steel
  • White, RAL 9010
  • Manually adjustable blades

Round adjustable swirl ceiling diffuser for high ceiling (3 to 12 m)

Application

  • For air supply in ventilation and air conditioning systems

Material

  • Steel and aluminium combination

Colour

  • White, RAL 9010

Composition

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

Text for tender

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  • The air supply diffusers for high ceilings are of the swirl type with manually adjustable blades. They are made of steel and aluminium with white powder coating finish RAL 9010.
  • ATC Type RWR-4

Other available products

  • Motorized versions RWR 4 B1 (24V on/off) or RWR 4 B2 (230V on/off) available upon request

Order example

  • RWR-4, 400

Explanation

RWR-4 = Diffuser type

400 = Neck size of diffuser

Dimensions

МоделØDØACC1
[mm][mm][mm][mm]
20020031017440
25025040020040
31531548024040
40040061526555
50050079032060
63063094038080
800800114255575

Symbols and specifications

  • Values without Coanda effect
  • Temperature difference Dt = -10K
  • Lt 0.25 = Throw in m at vt = 0.25m/s
  • Ps = Static pressure loss in Pa
  • Lw = Acoustic power in dB(A)
  • Qv = Air Volume in m³/h
  • Blades at ß=45° angle

Pressure loss and sound power level

Quick selection

Notes

  • H = throw
  • veff = effective velocity
  • Q = air flow rate
  • LWA = sound pressure level
  • Δpt = pressure drop

  • Example 2 (cooling)

    • Q = 350 m3/h
    • LWA = 48 dB(A)
    • Δpt = 77 Pa
    • Blade angle: 32°

  • Example 3 (cooling)
    • Q = 2700 m3/h
    • LWA = 44 dB(A)
    • Δpt = 16 Pa
    • Blade angle: 44°
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