Backdraft Damper - Extruded Style Blade - Medium to High Velocity - BD-250

Backdraft Damper
Extruded Style Blade

The BD-250 backdraft damper employs gravity operated extruded style blades to restrict reverse airflow and to permit the forward flow of air in the intended direction. The BD-250 damper may be mounted vertically or horizontally (airflow up) in either exhaust or intake installations for low to medium velocity and pressure applications.

Specification

Standard Construction
Frame: 1-15/16" x 15/16" X 0.125" (49 x 24 x 3) extruded aluminum channel.
Blades: 0.07" (1.8) thick aluminum - extruded.
Linkage: Exposed on blade.
Bearings: Synthetic.
Seals: Extruded vinyl blade edge.
Minimum Size: 6" x 6" (152 x 152)
Maximum Size:
Single Section: 48" x 52" (1219 x 1321)
Multiple Section: Unlimited

Ratings
Leakage: 13.3 cfm/ft² @ 1.0 in. wg. (0.07 m³/s/m² @ 0.25 kPa)
Temperature: -40^oF to 200^oF (-40^oC to 93^oC)

Technical specification

Unique ref.Backdraft-Damper-Extruded-Style-Blade-Medium-to-High-Velocity-BD-250
Product familyHVAC
Product groupBackdraft Dampers
TypeObject (single object)
Date of publishing2024-07-16
Edition number1

Links

Product urlhttps://www.pottorff.com/product/details/51

Classification

BIMobject CategoryHVAC - Ductwork
Uniclass 2015 CodePr_65_65_24
Uniclass 2015 DescriptionDuct dampers
CSI MasterFormat 2014 Code23 33 13.23
CSI MasterFormat 2014 TitleBackdraft Dampers
OmniClass Number23-33 29 13
OmniClass TitleBackdraft Dampers

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States