Noise Control - Acoustic Louvres - WLA Series

WLA Series - Acoustic Louvres


  • The use of acoustic louvres or control of plant noise to atmosphere is now a widely accepted practice.
  • AMS developed a compact louvre, which ensures weather protection with significant acoustic performance and pleasing visual aspect.
  • AMS acoustic louvres are supplied in galvanised or aluminium finishes.
  • Plastic coatings, anodised aluminium or special paint finishes are available on request.
  • Common applications for acoustic louvres are plant room air intakes and exhausts, cooling towers, refrigeration equipment, diesel generators, air cooled condensers and screen wall applications.
  • To compliment the WLA acoustic louvres series AMS can provide matching profile standard weather louvres, these being designed type WL or for blanked off sections type WLD.
  • All being available in the same finish options as for the WLA type acoustic louvres.

  Acoustic Performance

  • The acoustic performance table for WLA acoustic louvres is presented as a sound reduction index (transmission loss).
  • In most practical applications the figures shown can be considered in the same way as the static insertion loss for an attenuator.


  • Louvre blade elements are manufactured from min.0.9 mm high quality galvanised sheet steel for the upper weather surface, acoustic infill being 47.5 kg/m density lass fibre with bonded surface membrane, retained by louvre blade under surface of steel wire mesh.
  • The louvre blade elements are mounted in a 1.6 mm galvanised sheet steel peripheral channel framework with returned edges for unit strength and rigidity.
  • Louvre additional options are bird mesh wire, internal or external flange frame, multi-section construction or architrave strip.



sounddata  Sound Data

Sound Data