• Product Category
  • Louver
  • Application
  • Stationary
  • Frame Material
  • Extruded Aluminum
  • Frame Thickness
  • 0.08
  • Blade Material
  • Extruded Aluminum
  • Blade Thickness
  • 0.08
  • Blade Type
  • K Blade
  • Blade Angle
  • 30
  • Frame Depth
  • 4"
  • Free Area %
  • 51.38
  • Intake Exhaust
  • Both
  • Max Velocity FPM
  • 475
  • Rectangular Square Shape
  • Yes
  • Round Shape
  • Yes
  • Triangular Shape
  • Yes
  • Options
  • - 31
  • Flange
  • - 45
  • 1/2" x 1/2" x .063 Aluminum Screen (Removable)
  • - 40
  • Standard Screen in Removable Frame
  • - 42
  • 18 x 16 Mesh Aluminum Insect Screen (Removable)
  • - 43
  • 18 x 16 Mesh Bronze Insect Screen (Removable)
  • - 44
  • 1/2" x 1/2" x 16 Gauge S.S. Screen (Removable)
  • - 48
  • 18 x 14 Mesh Stainless Steel Insect Screen
  • - 32
  • Multiple Section [No Extra Charges)
  • - 33
  • Continuous Line (Hidden Mullions)
  • - 34
  • Buck Frame (Requires Flanged Louver)
  • - 35
  • Sill Extension (Min. List $40.00)
  • - 36
  • Tack-Welded Construction
  • - 79-A
  • Heavy Frame (.1 25 Extruded Alum. Frame (8 ga.) - .081 Alum. Blades)
  • - 89
  • Sleeve up to 16" deep , .18 ga galv. , Specify depth in comments (Min. list $70)

 

It is possible for moisture to penetrate louvers under adverse atmospheric conditions. For critical applications, drained ductwork or other means of drainage is recommended.

Data shown includes the effect of .051 x 3/4" diamond pattern aluminum birdscreen. Graphs are corrected to standard air density .075 lb. per cubic foot. 

RECOMMENDED MAXIMUM INTAKE FREE AREA VELOCITY 475 F.P.M.