Silent-Mod Acoustical Louver™
Silent-Mod Acoustic Louvers are engineered to deliver high acoustic performance (Transmission Loss, dB) while minimizing airflow restrictions (Pressure Drop, in.w.g.) in space-limited applications. These louvers come in a variety of finishes and material options to fit your design needs. For systems or field conditions requiring flexibility, the louvers can be assembled in a modular fashion. We offer a selection of blade geometries designed to meet acoustic, aerodynamic, and security specifications. Applications include process air intakes, fresh air intakes for ventilation systems, mechanical equipment screens, cooling tower inlets, and more.
Features:
– Modular design allows flexible assembly and sizing to meet shipping and handling needs
– Standard, sight-proof, and airfoil blade options
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Product Specs
Applications
Ventilation for industrial plants, mechanical rooms, acoustic enclosures, and noise barrier systems. Acoustic replacement option for standard rain louvers. Relief air from factories and workshops.
Standard Construction
Casing: 18 ga. galvanized steel
Internal: Acoustic grade fiberglass fillLouver Blade Shapes
Standard (AL)
Sight-Proof V (AL-S)
Airfoil (AL-F)Standard Size Ranges
Depth: 4 to 12 in
Width: Up to 48 in
Height: Up to 120 inCustom Options
Heavy Casings: 10 and 14 gauge steel
Casing Materials: Stainless steel (304 & 316), satin coat aluminum
Custom depths available
Wire mesh screen available for protection
Finish Options: Painted and corrosion protection
Mounting flange for installation ease
Custom configurations for space and weight restrictions
Protective Linings: Fiberglass cloth options
Mounting options: Hinged or doorAccessories
Access doors, 1x1 wire mesh for protection
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Acoustical Performance
Louver Type Depth (in.) Octave Band Transmission Loss(db) Pressure drop (in.w.g) at Various Face Velocities Louver Type Depth (in.) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz 250 fpm 300 fpm 400 fpm 500 fpm AL 4 4 6 8 11 15 20 16 12 0.09 0.13 0.24 0.37 6 5 6 9 12 17 22 18 16 0.11 0.16 0.28 0.44 8 6 7 10 14 20 23 21 18 0.10 0.14 0.24 0.38 12 7 8 11 16 22 25 23 20 0.09 0.13 0.23 0.36 AL-S 8 6 7 11 16 23 25 24 19 0.10 0.14 0.24 0.38 12 7 9 12 18 24 26 25 21 0.11 0.14 0.26 0.39 18 7 10 13 20 26 27 25 22 0.10 0.15 0.26 0.40 24 8 11 14 21 28 28 26 22 0.11 0.15 0.27 0.42 AL-F 8 5 5 6 9 12 13 10 12 0.03 0.04 0.07 0.11 12 7 7 9 12 15 14 11 12 0.04 0.05 0.09 0.14 18 7 9 11 14 20 18 12 13 0.03 0.05 0.08 0.13 24 8 11 12 19 24 22 13 13 0.04 0.05 0.09 0.14