Model EX-437

Extruded Aluminum Louver
4" Deep - 37-1/2 Combination Blade

The EX-437 combination louver features stationary drainabe blades to protect against water penetration and an integral control damper to allow posiive shutoff protection of air intake and exhaust openings. The EX-437 is available in a wide array of anodized and painted finishes including custom color matching. These units are also available with a variety of factory mounted electric and pneumatic actuators.

Standard Construction

Material: Mill finish 6063-T5 extruded aluminum.
Frames: 4" deep x 0.081" thick (102 x 2) channel.
Blades: 37-1/2^o x 0.081" (2) thick drainable style.
Screen: 1/2" x 0.063" (12.7 x 1.6) expanded and flattened aluminum.
Axles: 1/2" (13) diameter steel hex.
Linkage: Concealed in frame.
Low Leakage Seals: TPV blade edge and flexible metal jamb.
Bearings: Synthetic.
Mullion: Visible.
Minimum Size: 12" x 12" (305 x 305)
Maximum Size: 48" x 96" (1219 x 2438) with low leakage seals.
                           60" x 96" (1524 x 2436) without low leakage seals.
                           Multiple Section: Unlimited

Ratings

Free Area: 6.9 ft² (0.64 m²)

Performance @ Beginning Point of Water Penetration
Free Area Velocity: 1172 fpm (5.95 m/s)
Air Volume Delivered: 8134 cfm (3.84 m³/s)
Pressure Loss: 0.17 in. wg. (42 Pa)

Velocity @ 0.15 in. wg. Pressure Loss: 1085 fpm (5.51 m/s)
Design Load: 30 psf