Adamsson Rectangular Attenuators - Standard Construction
Attenuator casings are manufactured from high quality 1.2mm thick pregalvanised mild steel. End flanges are 38mm by 38mm by 3mm rolled steel angle.

Acoustic splitters are manufactured from perforated 0.8mm zinc anneal 11% open area, with 32kg/m3 density infill. Splitters are manufactured seperately and inserted in the casing.

Special Construction may include:

  1. Stainless steel casing and splitters
  2. Hot dip galvanised mild steel casings up to 10mm thickness
  3. Mylar protection on acoustic infill
  4. Internal and external finish to required paint specification

Selection of attenuators are by application only as there is approximately 300 different combinations available.

Acoustic Performance of attenuators are from
63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz
3 db 4 db 8 db 13 db 15 db 12 db 10 db 10 db to
19 db 33 db 47 db 50 db 50 db 50 db 50 db 41 db
Standard length of attenuators are from 600mm to 3000mm
Please click on the images below for a closer view :
Rectangular Attenuators - Enquiry Form
Your Information
Name
Company
Co
mpany Location
Contact Number
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Email Address
 
Required Insertion loss
db
Hz 63 125 250 500 1000 2000 4000 8000
Total Air volume: l/s m/s m3/hr
Maximum pressure Pa
Maximum attenuator size (mm) W H L
Silencer entry condition Plenum Duct
Silencer exit condition Plenum Duct
Adamsson Engineering.
Unit 3 / 7 Hector Street West, Osborne Park Western Australia 6017.
Phone: 61 8 9242 7677. Fax: 61 8 9242 7678.
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email:enquiries@adamsson.com.au