400F & 405F
ventex

ACL400F / ACL405F 4 Inch Deep Airfoil Blade

The Ventex ACL400F/ACL405F is a 4" deep airfoil blade acoustic louver constructed from formed aluminum with a mineral wool insulated blade core. The airfoil blade design exhibits lower pressure drop at higher velocities compared to standard blade profiles, making it well suited to applications that require both noise reduction and efficient ventilation. Commonly used in pumping stations, portable generators, and other equipment enclosures where acoustic performance is a priority.


Standard Construction

MaterialAluminum, Galvanized Steel
Depth4" (102 mm)
Blade TypeAirfoil blade
Frame0.125" (3.18 mm) formed aluminum
Blade Exterior0.063" (1.60 mm) formed aluminum
Blade Interior0.032" (0.81 mm) perforated aluminum, 3/32" holes
InsulationMineral wool
Blade Angle45°

Custom configurations available

This product can be manufactured in alternative materials, sizes, and mounting options to meet your project requirements. Contact us to discuss specifications.

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Available Accessories

Birdscreen19 GA. Galvanized, 1/2" x 1/2" openings
Louver ConstructionAdditional gauges of aluminum available
Insect Screen18 x 14 Mesh Aluminum
Blank-Off PanelsNon-insulated or Insulated (1" or 2")
Accessory ConstructionGalvanized steel

Additional Notes

Certification and standards information for this product is not yet available. Please contact Ventex for more details.

The ACL400F/ACL405F is designed for applications where both ventilation and sound attenuation are required. The airfoil blade profile reduces aerodynamic resistance at higher air velocities, while the mineral wool insulation within the blade cavity provides acoustic absorption. The perforated aluminum blade interior allows sound waves to enter the insulation medium, enhancing noise reduction performance. Typical applications include pumping stations and portable generator enclosures.

Finishes

Request a colour sample
V1117
Beige
V1022
Charcoal
V1287
Cocoa Brown
V1145
Commercial Brown
V1161
Driftwood White
V1137
Forest Green
V1197
Hartford Green
V1183
Heron Blue
V1020
Ivory
V1119
Metro Brown
V1176
Natural Brick
V1155
Northern Gold

Note: Colours shown are approximate electronic representations. Actual colours may vary. Physical colour samples are available upon request.