This GMD-SP series control damper includes motor, and is made of steel. It measures 27 inch width, 27 inch height, 12 inch length. This control damper has one phase, 50/60 Hz, and 27 inch diameter, and 3 Amps.
Technical Specs
ItemControl Damper
Number of Panels1
Overall Length12 in
For Duct ShapeSquare
Frame Material Thickness14 ga
Maximum Air Pressure4 in wg
Rough Opening Length25 in
Damper TypeDynamic
Nameplate Voltage100/240V AC
Closure Pressure Rating4 in wc
Closure Velocity Rating3,500 fpm
CounterbalancedNot Counterbalanced
Mounting PositionHorizontal, Vertical
Pressure Drop @ 1000 fpm (AMCA 5.2)0.18 in wg
Frame Less Flange24 sq in
Jamb Seal MaterialStainless Steel
StandardsNEC, OSHA
Maximum Temperature Rating122 Degrees F
Full Load Current3 A
Bushing MaterialBrass
Damper FinishPlain
Frame MaterialSteel
Frequency50/60 Hz
Damper ApplicationMotorized
Overall Height27 in
Rough Opening ShapeSquare
Overall Width27 in
Blade MaterialGalvanized Steel
Overall Diameter27 in
Rough Opening Width25 in
Maximum Air Velocity3,500 fpm
Rough Opening Diameter25 in
Blade OrientationParallel Blades
Blade TypeFlat Blade
Free Area3.6 sq ft
Switch ActionNormally Open
Flange TypeReversed Flange
Flange Width1 1/2 in
Airflow DirectionHorizontal, Vertical
Phase1
Includes MotorMotor Included
Axle MaterialPlated Steel
Blade Material Thickness16 ga
SeriesGMD-SP
Motor Bracket Extension6 7/8 in
Country of OriginUnited States
(subject to change)