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Published by Tiffany Chan at Sep 3, 2020
Categories
Tags
cla-environment

CLA

CLA

Compact sound attenuator for circular ducts

Air Distribution

Products › Air Distribution     |     Introduction     Key Features     Basic Operation     Applications     Dimensions

Compact sound attenuator for circular ducts

A rectangular sound attenuator with circular connection spigots. Unique properties regarding installation height, fire-resistance class, fibre-migration proof design and sound attenuation. Patent-pending self-supporting fibre-migration proof surface lining and end wall solution.

  • cla product
  • cla

Key Features

Duct Sizes 4″, 5″, 6″, 8″, 10″ 12″ and 16″
Lengths 20″ and 40″

Basic Operation

The CLA sound attenuator offers the following advantages:

  • Extremely low installation height.
  • Very good sound attenuation
  • Fibre-migration proof
  • Airtightness class D
  • Low-pressure drop
  • Included in the MagiCAD database

Applications

Size Length (mm) ⌀d (mm) H (mm) Static integral attenuation, db to ISO 7235 Weight (kg)
63 125 250 500 1K 2K 4K 8K
100 500 99 152 7 9 14 26 34 42 35 26 3.2
1000 99 152 7 17 26 44 50 50 50 39 6.0
125 500 124 177 5 9 13 21 29 35 31 20 3.9
1000 124 177 7 16 23 39 50 50 47 35 7.2
160 500 159 212 5 8 13 17 23 31 21 17 5.0
100 159 212 7 13 22 32 45 50 38 25 9.2
200 500 199 252 5 8 11 15 20 22 14 14 6.3
1000 199 252 7 13 20 28 40 45 27 20 11.7
250 500 249 302 5 6 8 11 15 16 10 7 8.5
1000 249 302 6 11 15 20 28 31 18 14 15.7
315 500 314 367 4 6 7 9 12 8 8 5 11.0
1000 314 367 6 10 12 17 24 21 12 7 20.2
400 500 399 458 4 6 7 9 12 8 6 4 15.1
1000 399 458 5 9 12 16 23 14 8 6 27.5

Dimensions

cla-dim
Size B (mm) C (mm) ⌀d (mm) H (mm) L
mm mm
100 208 45 99 152 500 1000
125 236 45 124 177 500 1000
160 274 45 159 212 500 1000
200 321 45 199 252 500 1000
250 394 45 249 302 500 1000
315 462 45 314 367 500 1000
400 553 70 399 458 500 1000

See more Air Distribution Products

cla-environment
CLA

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