DucoGrille Classic N 50HP
Technical features
| Visual free area | 88 % |
| Physical free area | 68 % |
| K factor intake | 4,7 |
| K factor exhaust | 4,55 |
| Ce | 0,46 |
| Cd | 0,47 |
| Fitting Depth | 68 mm |
| Blade pitch | 50 mm |
| Frame flange | 0 mm |
Insect mesh (S= Standard / O= Optional)
| SS insect mesh 2,3 x 2,3 mm | S |
| SS bird mesh 6 x 6 mm | O |
Watertightness (with insect mesh)
| v = 0 m-s | C(92,3%) |
| v = 0,5 m-s | C(89,80%) |
| v = 1 m-s | C(86,5%) |
| v = 1,5 m-s | D(79,7%) |
| v = 2 m-s | D |
| v = 2,5 m-s | D |
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