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Series 3500 Dampers
Triangle Engineering manufactures & delivers high quality aluminum back draft dampers at competitive prices. Our dampers are all engineered to combine strength and durability in the use of providing controlled airflow against drafts. Our dampers are available in several styles to satisfy your engineering specifications.
Available Options
- Adjustable Spring Counter Balance
- Bird Screen
- Insect Screen
- Chain Operator
- Fixed Louvre
Series 3500 Standard Specifications
| Construction | 45 degree mitered corners; riveted linkage 3300, 3400, 3500 staked corners |
| Finish | Mill Finish |
| Max Size* | 36″x36″ |
| Min. Size* | 6″x6″ |
| Blade Seals | Full length Vinyl weather strip |
| Blade Thickness | .020 Roll-Formed Aluminum Mill Finish |
| Frame Style | Front Flanged Mount |
| Mounting Configuration | Vertical Position A Horizontal Position B (Air Flow Up) Horizontal Position C (Air Flow Down) |
| Frame Material | Extruded Aluminum |
*Call for special sizes
