Air Balance Update!

Weve updated our website with some new features to improve your experience.

Take a look at our latest features on the Whats New summary page. This page is always avaliable from the About menu in the main nav.

Home
Products
Literature
Sales Locator
Contact
About
Tools

Products

Home
Products

Choose a category to filter by

Product Filters

Product Type

Filters Product Type

Construction

Filters Construction

Certification

Filters Certification

Performance

Filters Performance

Product Type Filters

Life Safety (UL Rated) 97

Dynamic Fire Dampers 22

Fire-Smoke Dampers 39

Smoke Dampers 18

Static Fire Dampers 13

Non-UL Dampers 63

Control Dampers 31

Balancing Dampers 7

Backdraft Dampers 13

Round Dampers 16

Industrial Dampers 13

Multi Zone Dampers 3

Louvers 121

Stationary Louvers 53

Severe Weather Louvers 25

Adjustable / Combination Louvers 27

Acoustical Louvers 8

Brick Vents 2

Doors 36

Aluminum Plenum Access Doors 18

Steel Plenum Access Doors 6

Duct Access Doors 12

Access Doors 36

Rooftop 17

Penthouses 8

Sunshades / Vision Screens 9

Construction Filters

Materials

Extruded Aluminum 6063 Alloy 22
Rolled Aluminum 0
Structural Aluminum 0

304 Stainless Steel 23
316 Stainless Steel 19
Fabricated Steel 3
Galvaneal (When Finish / Field Painting Is Required) 0
Galvanized Steel 35
Hot Rolled Steel 1
Structural Steel 0

General Construction

General Construction Properties

Insulation

Louver/Damper Construction

Blade Construction Properties

Blade Type

Drainable Blade

Blade Movement

Blade Action

Blade Depth

in.

in.

4 in. 8 in.

Blade Angle

deg.

deg.

0 deg. 45 deg.

Single Panel Size

Min Size Width

in.

3.75 in. 44 in.

Max Single Panel Width

in.

14 in. 60 in.

Min Size Height

in.

3 in. 44 in.

Max Single Panel Height

in.

10 in. 96 in.

Min Size Diameter

in.

4 in. 11.75 in.

Max Single Panel Diameter

in.

11 in. 34 in.

Mount Orientation

Horizontal

Vertical

Horizontal or Vertical

Frame Construction Properties

Frame Depth:

in.

in.

0.465 in. 18 in.

Frame Shape

Frame Style

Frame Type

UL / Life Safety Construction

Actuator Closure Type

Certifications Filters

Certifications and Ratings

Life Safety Standards

Underwriters Laboratories, Inc.: 555 63
National Fire Protection Association: 80 & 90A 80
Underwriters Laboratories, Inc.: 555S 57
Underwriters Laboratories, Inc.: 555C 5

UL Temperature

UL Temperature Rating: 250° 50
UL Temperature Rating: 350° 38
UL Temperature Rating: 250°/350° 45

For Airflow

AMCA Rating (Air Leakage) 2
AMCA Rating (Air Performance) 81

UL Fire Rating

UL Fire Resistance Rating: 1.5 Hours 48
UL Fire Resistance Rating: 3 Hours 26

UL Leakage Rating

UL Leakage Rating: Class I 26
UL Leakage Rating: Class II 31

For Rainfall Protection

AMCA Rating (Water Penetration) 33
AMCA Rating (Wind Driven Rain) 17

For Hurricane Protection

Miami-Dade Approved 4
AMCA Rating 540 (Missile Impact) 5
AMCA Rating 550 (High Velocity WDR) 6

Other Certifications

ICC's International Building Code 78

Performance Filters

Airflow Performance

All Airflow Properties

Max Velocity:

fpm
to

fpm

1000 fpm 10000 fpm
Pressure Drop:

in. w.g.
to

in. w.g.

0.012 in w.g. @ 1000 fpm 0.7 in w.g. @ 1000 fpm
Begining Point of Water Penetration (fpm):

fpm
to

fpm

459 fpm 1250 fpm
Begining Point of Water Penetration (cfm):

cfm
to

cfm

3383 cfm 11550 cfm
Free Area:

%
to

%

24.88% 72.6%
Max Static Pressure

in. w.g.
1 in. w.g. 20 in. w.g.

Group Products

Product Type

Construction

Certification

Performance

Filters Applied

Clear All Product Type: Non-UL Dampers

Page 1 of 3 (63 Results, 58 Groups)

12 Per Page 24 Per Page 60 Per Page 120 Per Page

AC517 / AC518

5.5" Deep Airfoil Blade Steel Control Damper

Featured

AC518

Maximum Velocity (FPM): 5000 fpm
Max Static Pressure: 12 .in w.g. @ 1000 fpm
Pressure Drop: .03 in. w.g. @ 1000 fpm

1 in Group Compare

AC525 / AC526

5" Deep Ultra Low Leak Airfoil Control Damper

Featured

AC525, AC526

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

1 in Group Compare

128

2" Deep Single Blade Aluminum Damper

128

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

1 in Group Compare

354

6" to 8" Deep Double Deck Multi-Zone Damper

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

1 in Group Compare

356

10" Deep Triple Deck Multi-Zone Damper

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

1 in Group Compare

356-12

12" Deep Triple Deck Multi-Zone Galvanized Steel Damper

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 2 .in w.g. @ 1000 fpm

1 in Group Compare

A1770

4" Deep Single Thickness Blade Steel Control Damper

A1770

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

1 in Group Compare

A182

4" Deep Single Thickness Blade Stainless Steel Control Damper

A182

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .037 in. w.g. @ 1000 fpm

1 in Group Compare

A225-B

2" Deep Light Duty Aluminum Pressure Relief Backdraft Damper

A225B

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .14 in. w.g. @ 1000 fpm

1 in Group Compare

A260DW

Dual Wall Insulated Round Single Blade Volume Control Damper

A260DW

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 6 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

A335

2" Deep Aluminum Backdraft Damper

A335

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .35 in. w.g. @ 1000 fpm

1 in Group Compare

A388

Galvanized Steel Round Backdraft Damper

A388

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

1 in Group Compare

A389

Aluminum Round Backdraft Damper

A389

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

1 in Group Compare

A390

Stainless Steel Round Backdraft Damper

A389

Maximum Velocity (FPM): 3000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .05 in. w.g. @ 1000 fpm

1 in Group Compare

A395

4" Deep Single Thickness Blade Low Leakage Control Damper

A395

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .04 in. w.g. @ 1000 fpm

1 in Group Compare

A503

2" Deep Light Duty Stainless Steel Backdraft Damper

A503

Maximum Velocity (FPM): 1000 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .25 in. w.g. @ 1000 fpm

1 in Group Compare

A545INS

10" Deep Industrial Insulated Airfoil Control Damper (Clean Air)

A545INS

Maximum Velocity (FPM): 8000 fpm
Max Static Pressure: 10 .in w.g. @ 1000 fpm
Pressure Drop: .1 in. w.g. @ 1000 fpm

1 in Group Compare

A56

6.5" Deep Aluminum Airfoil Control Damper with Transition

A56

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 6 .in w.g. @ 1000 fpm
Pressure Drop: .04 in. w.g. @ 1000 fpm

1 in Group Compare

A580-BD

10" Deep Round Industrial Backdraft Damper

A580BD

Maximum Velocity (FPM): 6000 fpm
Max Static Pressure: 8 .in w.g. @ 1000 fpm
Pressure Drop: < .1 in. w.g. @ 1000 fpm

1 in Group Compare

A70

7.5" Deep Round Galvanized Steel Damper

A70

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

A70GL

7.5" Deep Round Galvanized Steel Damper with Honeywell Actuator

A70GL

Maximum Velocity (FPM): 1500 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

A70R

7.625" Deep Round Single Blade Galvanized Steel Damper with Nine Position Locking Hand Quadrant

A70R

Maximum Velocity (FPM): 1500 fpm
Max Static Pressure: 1 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

A75

7.5" Deep Round Aluminum Damper

A75

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

A80

7.5" Deep Round Stainless Steel Damper

A80

Maximum Velocity (FPM): 2000 fpm
Max Static Pressure: 4 .in w.g. @ 1000 fpm
Pressure Drop: .012 in. w.g. @ 1000 fpm

1 in Group Compare

Page 1 of 3 (63 Results, 58 Groups)

1
2
3

1
2
3

Are you looking for a

Sales Representative?

Find your local sales office right now!

Recently Viewed

Air Balance builds dependable HVAC solutions, including AMCA-rated louvers, UL-classified dampers, and more. Take a balanced approach to HVAC and Life Safety.

Contact Us

450 Riverside Drive
Wyalusing, PA 18853
p : (570) 746-1888
f : (570) 746-9286
Contact

Useful links

Products
Rep Locator
Contact
Sales Assistant

Subscribe to our newsletter!

Never Miss Anything From Us By Signing Up To Our Newsletter.

Mestek, Inc. © Copyright 2026. All Rights Reserved. | Purchase Terms | Terms & Conditions | Terms of Use

Send Us Feedback