The Model GMD is a Heavy Duty Galvanized Steel motorized damper with a 1-1/2" flanged frame. It can be used for exhaust or supply applications and can be mounted in either a vertical or horizontal position. The damper comes standard with an internally mounted single phase motor with an end switch.
Frame: 2" deep x 1-1/2" flanged x 14 gauge Galvanized Steel.
Blades: 16 gauge Galvanized Steel, 6" maximum width, center pivoted to allow full 90 degree opening. Seals: Stainless Steel Jamb Seals.
Tie Rod: 11 gauge Galvanized Steel tie rods and blade clips.
Construction: "MIG" welded frames.
Mounting holes: 9/32" x 1/2" slotted.
Minimum: 12" W x 12" H
Maximum: 72" W x 72" H
3500 FPM Maximum Velocity.
4" wg Maximum Pressure.
122 degree Maximum Temperature.