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The control function itself is built into a surface-mounted collar and offers uniform and centric throttling when the damper blades are actuated towards the centre. The result will be a laminar and uniform air stream pattern with a low noise level. Thanks to its compact design, SIRI is simple to integrate into the ductwork. Casing leakage is according to ductwork leakage class C (EN 1751).
The damper structure and the control discs are made of galvanized sheet steel, and the other components are made of plastic. The connection spigots are fitted with rubber seal rings.
| Document | Article | Document type | Date | Download |
|---|---|---|---|---|
| Measurement and control damper (pdf 373.92kB) | SIRI | Technical catalogue | 26/06/2023 | |
| Installation, commissioning, maintenance (pdf 261.97kB) | SIRI a | IOM Manual | 27/06/2019 | |
| Building product declaration (pdf 42.99kB) | SIRI | Quality | 24/05/2018 |