Acoustic Louvers

Description

AKINCO Acoustic Louvers are used to reduce mechanical equipment noise transmitted through building openings or from openings in acoustic enclosures or barrier walls. Our Acoustic Louvers are available in galvanized steel, stainless steel or aluminum construction with various surface finishes in order to meet project architectural requirements. We test them according to ASTM E90 for transmission loss and AMCA Standard 500-L for pressure drop, and we can supply them with bird screen and media protection of woven fiberglass cloth or film liner. As with all noise control products, acoustic and aerodynamic performance varies with the design, and the sizing of the louvers is important to minimize concerns of pressure drop and water ingress.Capture

The Louvers are tested to International Standards. As with all AKINCO products, we employ our own installation staff familiar with the installation methods required to ensure acoustic integrity. Where required or preferred we can easily assemble a complete turnkey solution.

Our acoustic louvers are available in two models, single (type 1) and double (type 2). The aerodynamically designed splitters are fitted with the sound absorber material. The louver can be treated with anti-corrosion finish if necessary.

Typical applications are silencing for:

  • Outside air intake or exhaust air openings,
  • Generator rooms
  • Ventilation openings in acoustical enclosures and acoustical barriers around cooling towers,
  • Air-cooled chillers and other outdoor equipment.
  • In substitution of architectural louvers where aesthetics is not of primary concern (e.g. some Water Treatment and Power Plants)

Features

  • available in any cross-sectional dimensions to “fit-the-opening”
  • modular unit sizes to fit openings without using transitions or large blank-off sections
  • standard depth 12”; also other depths available
  • 1”x1” heavy wire mesh bird screen (usually on inconspicuous side)
  • can be selected to suit the acoustic, space, or energy-cost requirements
  • construction quality and aerodynamic design optimized to give reliable performance, best acoustics, lowest pressure drop and lowest overall cost.

Model vs. Noise Reduction vs. Pressure Drop

Model T Wt (lb.) 63 125 250 500 1000 2000 4000 8000 ΔP @ 500 fpm
Type -A 24 413 11 12 17 28 39 37 31 30 0.49
Type -A 12 257 11 13 17 22 26 24 21 22 0.43
Type -B 24 390 11 14 19 31 47 48 38 33 0.78
Type -B 12 247 11 15 17 24 31 31 26 24 0.70
Type -C 24 296 11 15 23 30 39 42 34 32 0.89
Type -C 12 198 11 15 19 24 28 28 22 24 0.86
Type -A 12 246 10 11 14 19 25 24 21 18 0.26
Type -A 6 163 10 10 12 15 17 16 14 14 0.24
Type -B 12 238 10 12 14 21 29 31 26 21 0.43
Type -B 6 162 10 11 12 16 20 20 17 15 0.39
Type -C 12 192 10 12 15 21 26 27 22 20 0.53
Type -C 6 139 10 11 13 16 18 18 15 15 0.48
Type -A 12 196 4 7 9 13 16 17 18 18 0.12
Type -A 6 163 3 5 7 9 10 10 10 12 0.11
Type -B 12 218 5 8 14 22 27 30 30 31 0.31
Type -B 6 137 4 7 11 15 16 17 18 18 0.29

Data based on 48×48-inch acoustic louver. Other sizes available

a

Type –A

 30-40% open area

12″, 16″, or 24″ thickness

No line of sight (security)

Maximum attenuation

b

Type –B

30-40% open area

12″, 16″, or 24″ thickness

Small vane spacing

Low frequency noise control

c

Type -C

40-50% open area

6″ or 12″ thickness

Low pressure drop

Light Weight

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