Duco Acoustic Panel 300(HP)
The Duco Acoustic Panel 300 is a sound attenuating built-in wall grille, crafted from extruded aluminium profiles and is always made to the desired size. The louvre blades are fitted with sound-attenuating, non-combustible mineral wool on the inside. Thanks to its solid construction, the Duco Acoustic Panel 300 has a high damping value of no less than 17 dB.
The new Duco Acoustic Panel 300HP variant offers even better ventilation values, while maintaining attenuation of up to 17 dB.
| Visual free area | 71 % |
| Physical free area | 31 % |
| K factor intake | 26,57 |
| K factor exhaust | 27,41 |
| Fitting Depth | 303 mm |
| Blade pitch | 130 mm |
| Frame flange | 37 mm |
| Attenuation value Rw (C;Ctr) | 17 (-1,-4) dB |
| Perforation P1 |
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| Perforation P2 |
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| SS insect mesh 2,3 x 2,3 mm | O |
| SS bird mesh 6 x 6 mm | O |
| SS bird mesh 20 x 20 x 0,5mm | O |
| v = 0 m-s | C |
| v = 0,5 m-s | D |
| v = 1 m-s | D |
| v = 1,5 m-s | D |
| v = 2 m-s | D |
| v = 2,5 m-s | D |