Overpressure dampers are used to automatically exclude circuits in ventilation and air conditioning systems.
- Anodised extruded aluminium frame;
- natural aluminium blades;
- blade pitch 100 mm;
- nylon bushings and pins;
- anodised extruded aluminium lower stop and neoprene upper stop;
- anodised extruded aluminium lateral profiles to make the damper reversible;
- longitudinal adhesive seal on the blades;
- pressure drop tests performed in accordance with UNI CTI 8728.
- Bird mesh;
- exhaust version;
- simultaneous blades.
Installed outside buildings to expel air.
| Height H | Y | No. Ø 6 mm (holes per side) |
| 200 | 87,5 | 1 |
| 300 | 137,7 | 1 |
| 400 | 37,5 | 2 |
| 500 | 87,5 | 2 |
| 600 | 137,5 | 2 |
| 800 | 87,5 | 3 |
| 1000 | 37,5 | 4 |
| Length L | X | No. Ø 6 mm (holes per side) |
| 200 | 87,5 | 1 |
| 300 | 137,7 | 1 |
| 400 | 37,5 | 2 |
| 500 | 87,5 | 2 |
| 600 | 137,5 | 2 |
| 700 | 37,5 | 3 |
| 800 | 87,5 | 3 |
| 1000 | 37,5 | 4 |
V: speed referring to the cross-section (L-25)x(H-25) [m/s]
Δpt: total pressure drop [Pa]
*: operation not guaranteed
| V [m/s] | Δpt [Pa] |
| 1 | 12 |
| 2 | 18 |
| 3 | 23 |
| 4 | 28 |
| 5 | 34 |
| 6 | 48 |
| 7* | 65 |
| 8* | 88 |
| 9* | 110 |
| 10* | 140 |
| H | L | |||||||
| 200 | 300 | 400 | 500 | 600 | 700 | 800 | 1000 | |
| euro | euro | euro | euro | euro | ||||
| 200 | 81,52 | 98,21 | 115,18 | 131,88 | 148,57 | 165,58 | 182,00 | 215,38 |
| 300 | 93,67 | 111,77 | 129,28 | 147,08 | 164,87 | 182,68 | 200,20 | 235,50 |
| 400 | 105,84 | 125,04 | 143,63 | 162,25 | 181,44 | 199,76 | 218,08 | 255,32 |
| 500 | 118,61 | 138,59 | 158,01 | 177,45 | 197,71 | 216,85 | 236,01 | 275,43 |
| 600 | 130,78 | 151,87 | 172,11 | 192,35 | 213,71 | 234,26 | 254,20 | 295,55 |
| 800 | 155,68 | 178,97 | 200,84 | 222,72 | 246,01 | 268,45 | 290,02 | 335,47 |
| 1000 | 180,60 | 205,82 | 229,31 | 253,08 | 278,27 | 302,90 | 326,13 | 375,67 |