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 | 79,15 | 95,35 | 111,82 | 128,04 | 144,24 | 160,76 | 176,69 | 209,11 |
300 | 90,94 | 108,51 | 125,52 | 142,79 | 160,07 | 177,36 | 194,36 | 228,64 |
400 | 102,76 | 121,40 | 139,45 | 157,53 | 176,16 | 193,94 | 211,73 | 247,89 |
500 | 115,15 | 134,56 | 153,40 | 172,28 | 191,96 | 210,54 | 229,13 | 267,41 |
600 | 126,97 | 147,45 | 167,10 | 186,75 | 207,48 | 227,43 | 246,79 | 286,94 |
800 | 151,15 | 173,76 | 194,99 | 216,24 | 238,85 | 260,63 | 281,58 | 325,70 |
1000 | 175,34 | 199,82 | 222,63 | 245,71 | 270,17 | 294,08 | 316,64 | 364,73 |