Smoke Damper Properties
Temperature Ratings
Leakage Rating
Actuator Closure Type
Frame Shape
Air Performance Stats
Static Pressure
Air Velocity
Damper Sizing
Max Single Panel Size
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\01 [KH1]\thumb_LD - KH1.png)
Model: KH1
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Galvanized Steel
Temperature Rating: 250°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 48"
Max Vertical Panel Size: 36" x 48"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\02 [KH1SS]\thumb_LD - KH1SS.png)
Model: KH1(SS)
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Stainless Steel
Temperature Rating: 250°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 36"
Max Vertical Panel Size: 36" x 36"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\03 [KH2]\thumb_LD - KH2.png)
Model: KH2
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Galvanized Steel
Temperature Rating: 250°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 48"
Max Vertical Panel Size: 36" x 48"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\04 [KH2SS]\thumb_LD - KH2SS.png)
Model: KH2(SS)
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Stainless Steel
Temperature Rating: 250°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 36"
Max Vertical Panel Size: 36" x 36"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\01 [Airfoil Blade]\01 [KA1]\thumb_LD - KA1.png)
Model: KA1
Frame Type: 5-1/2" x 16ga w/ Airfoil Blade
Material: Galvanized Steel
Temperature Rating: 250°/350°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 48"
Max Vertical Panel Size: 36" x 48"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\01 [Airfoil Blade]\02 [KA2]\thumb_LD - KA2.png)
Model: KA2
Frame Type: 5-1/2" x 16ga w/ Airfoil Blade
Material: Galvanized Steel
Temperature Rating: 250°/350°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 36" x 48"
Max Vertical Panel Size: 36" x 48"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\01 [Airfoil Blade]\03 [KA2M]\thumb_LD - KA2M.png)
Model: KA2M
Frame Type: 5-1/2" x 16ga w/ Airfoil Blade
Material: Galvanized Steel
Temperature Rating: 250°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 22" x 22"
Max Vertical Panel Size: 22" x 22"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\05 [KR1]\thumb_LD - KR1.png)
Model: KR1
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Galvanized Steel
Temperature Rating: 250°/350°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 24" x 24"
Max Vertical Panel Size: 24" x 24"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\02 [Single Thickness Blade]\06 [KR2]\thumb_LD - KR2.png)
Model: KR2
Frame Type: 5-1/2" x 16ga w/ Single Thickness Blade
Material: Galvanized Steel
Temperature Rating: 250°/350°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 24" x 24"
Max Vertical Panel Size: 24" x 24"
![](/tools\uss\Louvers & Dampers\22 [Smoke Dampers]\03 [Round Blade]\01 [RK]\thumb_LD - RK.png)
Model: RK
Frame Type: 18" x 20ga w/ True Round Blade
Material: Galvanized Steel
Temperature Rating: 250°/350°
Max Velocity: 2000 fpm @
4 in wg
Max Horizontal Panel Size: 24" dia.
Max Vertical Panel Size: 24" dia.