The DAOSQT backdraft damper is a self-closing component for ventilation systems that effectively blocks airflow in the duct when the exhaust is off. Its primary function is to prevent reverse airflow and uncontrolled natural convection. Thanks to the integrated foam seal, the damper eliminates noise during closing, and a spring holding the flaps in the closed position allows for installation in vertical duct sections.
| Product Code | Diameter Ød [mm] | Length L [mm] |
|---|---|---|
| DAOSQT-100 | 100 | 80 |
| DAOSQT-125 | 125 | 80 |
| DAOSQT-150 | 150 | 80 |
| DAOSQT-160 | 160 | 80 |
| DAOSQT-180 | 180 | 80 |
| DAOSQT-200 | 200 | 80 |
| DAOSQT-225 | 225 | 80 |
| DAOSQT-250 | 250 | 80 |
| DAOSQT-300 | 300 | 80 |
| DAOSQT-315 | 315 | 80 |
| DAOSQT-350 | 350 | 100 |
| DAOSQT-400 | 400 | 100 |
| DAOSQT-450 | 450 | 100 |
| DAOSQT-500 | 500 | 100 |
