Sound Attenuator


AKINCO offers the design and engineering assistance to integrate our line of duct silencers, sound attenuators into a system solution. As a result you may choose from a selection of standard or custom engineered duct silencers that will satisfy the requirements of each application.444

Prime candidates for noise control measures are openings into and out of noisy environments. This includes the ventilation of buildings, enclosures, and equipment rooms. Integration of noise control measures such as silencers and louvers, into the system design requires careful consideration of space constraints, fan selection and aerodynamic pressure losses. Our sound attenuators have adequate silencing capabilities, low air resistance and are as small as possible.
Technical data:

  • Splitter thickness: 100, 200mm
  • Nominal sizes:
  • Width subdivided: up to 4800 mm
  • Height subdivided: up to 3600 mm
  • Length subdivided: up to 3000 mm
  • Operating temperature up to 100 °C
  • Casing and splitter frames made of galvanized sheet steel
  • Standard flange and angle sections made of galvanized steel
  • Absorption material is mineral wool/ fiberglass


  • Increased insertion loss even in the high-frequency range
  • Up to 30 % lower differential pressure
  • Attenuation effect due to absorption
  • Frame edges are folded to protect the infill
  • Subdivided construction with angle section frame
  • Energy efficient and/or space saving due to aerodynamically profiled frame
  • Multi-section construction available for large dimensions

Areas of applications:

  • Fan Inlet and Discharge
  • Air Handling Units
  • Cooling Towers
  • Chillers
  • Generators
  • Radiator
  • HVAC Duct Systems for Commercial, Institutional and Industrial Buildings

Types (Rectangular and Circular):

  • Elbow Dissipative
  • Straight Dissipative
  • Cross-Talk
  • Custom Designs as Required

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