Standard Construction:
List dampers duct size (WxH) width x height – all dampers will be 1/4″ smaller both ways
- Frame: 16ga galvanized Hat channel with welded construction
- Frame dimensions: 2-7/8″ Hat channel (11/16 x 5/8 x 1-1/2 x 5/8 x 11/16)
- Blades: Formed .025 3003 aluminum (3-1/2″ +/-)
- Bushings: 1/4″ bronze Oilite Rod: 1/4″ round CRS plated
- Seals: 1/16″ x 1/2″ felt strips on blades
- Linkage: .032 3003 aluminum brackets/.063 linkage
- Maximum velocity: 1000 FPM
- Maximum size: 36″x36″ – Larger sizes must be sectioned
Options:
- Flange (on the intake side or output side)
- Counter balance
- Spring load
Contact our team for a quote or to learn more about Back Draft Dampers.
