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Blauberg SD 250/600

Silencer for round duct.
EAN codeEAN4058448038266
  • Description
  • Characteristics
  • Downloads
  • Designation key
  • Overall dimensions
  • Noise level reduction
  • Diagram

For attenuation of noise produced by a ventilation system and spreaded along ventilation ductworks. Used jointly with sound-insulated fans in premises with high requirements to noise level produced by ventilation equipment. Compatible with ∅ 100 mm up to 315 mm round air ducts.


Fixing to round ducts with clamps. Any mounting position. For better sound absorption install the silencers in series.


Galvanized steel case is filled with non-flammable sound-absorbing material with protecting covering against fiber blowing. Airtight connection with air ducts due to connecting flanges with rubber seals. A great variety of standard ranges with several length options.

Parameter SD 250/600 Measurement unit
Weight 4.2 kg
Length 600 mm
Casing material galvanized steel -
Air duct for round air ducts -
Connection diameter 250 mm
Documents archieve
Documents archieve
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SD (round) - data sheet (pdf 337.08Kb)
SD (round) - image (png 533.09Kb)
Designation key
Designation key
Series Connected air duct diameter [mm]   Length
SD 100; 125; 150; 160; 200; 250; 315 / 600; 900; 1200
Overall dimensions
Overall dimensions

Model Overall dimensions [mm]
Ø D Ø D1 L L1
SD 250/600 249 350 600 50
Noise level reduction
Noise level reduction
Model 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
SD 250/600 4 5 6 11 22 12 7 6

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