Damper Properties
Damper Purpose
Damper Type
Material Type
Frame Depth
Blade Style
Blade Action
Blade Depth
Temperature Rating
Air Performance Stats
Air Velocity (fpm)
Static Pressure (in. w.g.)
Pressure Drop (in. w.g. @ 1000 fpm)
Damper Sizing
Max Single Panel Size
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\02 [Single Blade]\01 [128]\thumb_Air Balance - 128.png)
Model: 128
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\06 [Multi-Zone Dampers]\00 [No Category]\01 [354]\thumb_Air Balance - 354.png)
Model: 354
Damper Type: Balancing - Multi-Zone
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\06 [Multi-Zone Dampers]\00 [No Category]\03 [356-10]\thumb_Air Balance - 356-10.png)
Model: 356
Damper Type: Balancing - Multi-Zone
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\06 [Multi-Zone Dampers]\00 [No Category]\04 [356-12]\thumb_Air Balance - 356-12.png)
Model: 356-12
Damper Type: Balancing - Multi-Zone
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\03 [Single Thickness Blade]\05 [A1770]\thumb_Air Balance - A1770.png)
Model: A1770
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\03 [Single Thickness Blade]\01 [A182]\thumb_Air Balance - A182.png)
Model: A182
Damper Type: Volume Control - Steel
Material: Stainless Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\01 [A225-B]\thumb_Air Balance - A225-B.png)
Model: A225-B
Damper Type: Backdraft - Backdraft
Material: Aluminum
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\07 [A260DW]\thumb_Air Balance - A260DW.png)
Model: A260DW
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\02 [A335]\thumb_Air Balance - A335.png)
Model: A335
Damper Type: Backdraft - Backdraft
Material: Aluminum
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\01 [Galvanized Steel]\02 [A388]\thumb_Air Balance - A388.png)
Model: A388
Damper Type: Backdraft - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\03 [A389]\thumb_Air Balance - A389.png)
Model: A389
Damper Type: Backdraft - Round
Material: Aluminum
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\02 [Stainless Steel]\01 [A390]\thumb_Air Balance - A390.png)
Model: A390
Damper Type: Backdraft - Round
Material: Stainless Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\03 [Single Thickness Blade]\02 [A395]\thumb_Air Balance - A395.png)
Model: A395
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\02 [Stainless Steel]\02 [A503]\thumb_Air Balance - A503.png)
Model: A503
Damper Type: Backdraft - Backdraft
Material: Stainless Steel
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\06 [A545INS]\thumb_Air Balance - A545INS.png)
Model: A545INS
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\03 [Aluminum]\01 [A56]\thumb_Air Balance - A56.png)
Model: A56
Damper Type: Volume Control - Round
Material: Aluminum
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\02 [Stainless Steel]\03 [A580-BD]\thumb_Air Balance - A580BD.png)
Model: A580-BD
Damper Type: Industrial - Backdraft
Material: Fabricated Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\01 [A70]\thumb_Air Balance - A70.png)
Model: A70
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\03 [A70GL]\thumb_Air Balance - A70GL.png)
Model: A70GL
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\02 [A70R]\thumb_Air Balance - A70R.png)
Model: A70R
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\03 [Aluminum]\02 [A75]\thumb_Air Balance - A75.png)
Model: A75
Damper Type: Volume Control - Round
Material: Aluminum
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\02 [Stainless Steel]\01 [A80]\thumb_Air Balance - A80.png)
Model: A80
Damper Type: Volume Control - Round
Material: Stainless Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\03 [Aluminum]\03 [A85]\thumb_Air Balance - A85.png)
Model: A85
Damper Type: Volume Control - Round
Material: Aluminum
Blade Type: Pin-Lock - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\03 [Single Thickness Blade]\04 [AB1 - AB2]\thumb_Air Balance - AB1-AB2.png)
Model: AB1/AB2
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\03 [Single Thickness Blade]\03 [AC1 - AC2]\thumb_Air Balance - AC1-AC2.png)
Model: AC1 / AC2
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\02 [Single Blade]\01 [AC111]\thumb_Air Balance - AC111.png)
Model: AC111
Damper Type: Balancing - Steel
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\05 [AC112]\thumb_Air Balance - AC112.png)
Model: AC112
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\03 [Single Thickness Blade]\01 [AC411]\thumb_Air Balance - AC411.png)
Model: AC411
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\03 [Single Thickness Blade]\02 [AC412]\thumb_Air Balance - AC412.png)
Model: AC412
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\08 [AC51 - AC52]\thumb_Air Balance - AC51-AC52.png)
Model: AC51/AC52
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\01 [Airfoil Blade]\01 [AC515 - AC516]\thumb_Air Balance - AC515-AC516.png)
Model: AC515 / AC516
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\01 [Airfoil Blade]\02 [AC517 - AC518]\thumb_Air Balance - AC517-AC518.png)
Model: AC517 / AC518
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\01 [AC525 - AC526]\thumb_Air Balance - AC525-AC526.png)
Model: AC525-AC526
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\03 [Single Thickness Blade]\01 [AC53 - AC54]\thumb_Air Balance - AC53-AC54.png)
Model: AC53/AC54
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\03 [Round and Transitional Dampers]\01 [Galvanized Steel]\06 [AC530]\thumb_Air Balance - AC530.png)
Model: AC530
Damper Type: Volume Control - Round
Material: Galvanized Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\02 [Single Blade]\01 [AC580]\thumb_Air Balance - AC580.png)
Model: AC580
Damper Type: Industrial - Round
Material: Fabricated Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\02 [Single Blade]\02 [AC581]\thumb_Air Balance - AC581.png)
Model: AC581
Damper Type: Industrial - Round
Material: Fabricated Steel
Blade Type: Single Thickness - Single Action
![](/tools\uss\Air Balance\02 [Steel Dampers]\04 [Insulated Blade]\01 [AID200]\thumb_Air Balance - AID200.png)
Model: AID200
Damper Type: Volume Control - Steel
Material: Galvanized Steel
Blade Type: Insulated - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\01 [Galvanized Steel]\03 [BID4]\thumb_Air Balance - BID4.png)
Model: BID4
Damper Type: Backdraft - Backdraft
Material: Galvanized Steel
Blade Type: Tear-drop - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\06 [BID8]\thumb_Air Balance - BID8.png)
Model: BID8
Damper Type: Backdraft - Backdraft
Material: Aluminum
Blade Type: Tear-drop - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\01 [Galvanized Steel]\04 [BID9]\thumb_Air Balance - BID9.png)
Model: BID9
Damper Type: Backdraft - Backdraft
Material: Galvanized Steel
Blade Type: Tear-drop - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\05 [BS55]\thumb_Air Balance - BS55.png)
Model: BS55
Damper Type: Backdraft - Backdraft
Material: Aluminum
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\01 [Galvanized Steel]\01 [BS66]\thumb_Air Balance - BS66.png)
Model: BS66
Damper Type: Backdraft - Backdraft
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\05 [Brackdraft Dampers]\03 [Aluminum]\04 [BSL]\thumb_Air Balance - BSL.png)
Model: BSL
Damper Type: Backdraft - Backdraft
Material: Aluminum
Blade Type: Single Thickness - Parallel Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\01 [ID30]\thumb_Air Balance - ID30.png)
Model: ID30
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\03 [Single Thickness Blade]\03 [ID41]\thumb_Air Balance - ID41.png)
Model: ID41
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\03 [Single Thickness Blade]\04 [ID42]\thumb_Air Balance - ID42.png)
Model: ID42
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\03 [Single Thickness Blade]\05 [ID43]\thumb_Air Balance - ID43.png)
Model: ID43
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Single Thickness - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\02 [ID50]\thumb_Air Balance - ID50.png)
Model: ID50
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\03 [ID51]\thumb_Air Balance - ID51.png)
Model: ID51
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\04 [ID54]\thumb_Air Balance - ID54.png)
Model: ID54
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\04 [Industrial High Temp Dampers]\01 [Airfoil Blade]\05 [ID55]\thumb_Air Balance - ID55.png)
Model: ID55
Damper Type: Industrial - Industrial
Material: Galvanized Steel
Blade Type: Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\02 [TB58]\thumb_Air Balance - TB58.png)
Model: TB58
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\04 [TB584]\thumb_Air Balance - TB584.png)
Model: TB584
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\05 [TB584I]\thumb_Air Balance - TB584I.png)
Model: TB584I
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\03 [TB58I]\thumb_Air Balance - TB58I.png)
Model: TB58I
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\06 [TB59]\thumb_Air Balance - TB59.png)
Model: TB59
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action
![](/tools\uss\Air Balance\01 [Aluminum Dampers]\01 [Airfoil Blade]\07 [TB594]\thumb_Air Balance - TB594.png)
Model: TB594
Damper Type: Volume Control - Aluminum
Material: Aluminum
Blade Type: Insulated Airfoil - Parallel / Opposed Action