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Sound attenuating transfer unit designed for installation in studded walls, produced as rectangular baffles containing insulating sound absorbing material covered by a reinforced surface layer, rated to fire resistance class B-s1,d0 conforming to EN ISO 11925-2. Open slot all around. The baffles are to be hung up on mounting frames supplied.
The baffles are made of sheet steel. The mounting frame is made of galvanised sheet steel. The baffles are painted.
AIR FLOW - PRESSURE DROP - Rw | ||||||||
ORTO Size | Hole in wall (mm) | 10 Pa | 15 Pa | 20 Pa | Rw=Dn,ew (dB) | |||
l/s | m3/h | l/s | m3/h | l/s | m3/h | |||
300 | 300x50 | 27 | 97 | 32 | 115 | 37 | 133 | 46 |
500 | 500x50 | 43 | 155 | 52 | 187 | 61 | 220 | 43 |
700 | 700x50 | 62 | 223 | 74 | 266 | 89 | 320 | 40 |
800 | 800x50 | 74 | 266 | 88 | 317 | 105 | 378 | 40 |
The data applies to installation in a 100 mm thick studded wall with a 10 m² transmission area. One transfer diffuser on each side of the wall. |
Document | Article | Document type | Date | Download |
---|---|---|---|---|
Sound-attenuating transfer unit (pdf 484.33kB) | ORTOa | Technical catalogue | 20/01/2021 | |
Decoline - Unique opportunities with design in focus (pdf 3.34MB) | CDR, CIRCO, KITE Ceiling, ORTO | Brochure | 20/10/2021 | |
Installation, commissioning, maintenance (pdf 295.71kB) | ORTOa | IOM Manual | 20/01/2021 | |
Air Overview Brochure (pdf 13.04MB) | Overview Brochure | Brochure | 26/09/2023 |