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Silent Mod Acoustical Louver
Designed to provide the maximum noise reduction obtainable in short depth while still giving an effective combination of privacy and weather protection.

Silentflow louvers are for use in installations such as process air intakes, fresh air intakes for ventilation systems, mechanical equipment screens, cooling tower inlets, etc.

Constructed to meet architectural standards, Silentflow is available in two models in 54 sizes, providing a wide range of pressure-drop and acoustical-performance requirements.


Out Casings – 16 Gage Galvanized Steel
Internals – 22 Gage Galvanized Steel
Bird Screens – ½″ Mesh Galvanized Screen (Insect Screeing Available)
Fill – Water Resistant Resin Bonded Fiberglass
CONSTRUCTION: Top surface Solid, Bottom Surface Absorptive, Water Stops on Upper Surface
STANDARD SIZES: From 24″×12″ to 48″×120″
Silent-Mod Acoustical Louver – Acoustical Performance
  125Hz 250Hz 500Hz 1KHz 2KHz 4KHz 8KHz
DIL-MODEL A 6 11 15 18 18 16 12
DIL-MODEL B 3 7 9 12 10 9 7