|
HDALD-2
Backdraft
16 Gauge Galvanized Steel frame and .032 formed aluminum blades.
Blades pivot on 3/16 diameter cadmium plated pins in brass eyelets.
Machine riveted and welded construction.
Maximum section size not to exceed 36" x
72"
Option:
2"
or 3" Depth
Stainless Steel or Aluminum construction
Note:
Not recommended for
velocities exceeding 900 fpm
|