This louvre is designed to offer very high free areas and is most suitable in exhaust applications to provide very low pressure drop. Available in flange and channel frame options.
| Height | Width (1.000 - 2.500) | |||||||
| 1.000 | 1.200 | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | |
| 0.200 | 0.06 | 0.07 | 0.07 | 0.09 | 0.10 | 0.12 | 0.13 | 0.15 |
| 0.300 | 0.12 | 0.15 | 0.15 | 0.19 | 0.22 | 0.25 | 0.28 | 0.32 |
| 0.400 | 0.18 | 0.22 | 0.23 | 0.27 | 0.32 | 0.37 | 0.41 | 0.46 |
| 0.500 | 0.25 | 0.30 | 0.31 | 0.37 | 0.44 | 0.50 | 0.57 | 0.63 |
| 0.600 | 0.30 | 0.36 | 0.38 | 0.46 | 0.54 | 0.61 | 0.69 | 0.77 |
| 0.700 | 0.37 | 0.45 | 0.46 | 0.56 | 0.66 | 0.75 | 0.85 | 0.95 |
| 0.800 | 0.42 | 0.51 | 0.53 | 0.64 | 0.75 | 0.86 | 0.97 | 1.09 |
| 0.900 | 0.49 | 0.59 | 0.62 | 0.75 | 0.88 | 1.01 | 1.14 | 1.26 |
| 1.000 | 0.54 | 0.66 | 0.69 | 0.83 | 0.97 | 1.11 | 1.26 | 1.40 |
| 1.100 | 0.61 | 0.74 | 0.77 | 0.94 | 1.10 | 1.26 | 1.42 | 1.58 |
| 1.200 | 0.66 | 0.80 | 0.84 | 1.01 | 1.19 | 1.36 | 1.54 | 1.71 |
| 1.300 | 0.74 | 0.89 | 0.93 | 1.12 | 1.32 | 1.51 | 1.70 | 1.90 |
| 1.400 | 0.79 | 0.95 | 0.99 | 1.20 | 1.40 | 1.61 | 1.82 | 2.02 |
| 1.500 | 0.86 | 1.04 | 1.08 | 1.31 | 1.53 | 1.76 | 1.99 | 2.21 |
| 1.600 | 0.91 | 1.10 | 1.15 | 1.38 | 1.62 | 1.86 | 2.10 | 2.34 |
| 1.700 | 0.98 | 1.18 | 1.24 | 1.49 | 1.76 | 2.01 | 2.27 | 2.52 |
| 1.800 | 1.03 | 1.24 | 1.30 | 1.67 | 1.84 | 2.11 | 2.38 | 2.65 |
| 1.900 | 1.10 | 1.33 | 1.39 | 1.68 | 1.97 | 2.26 | 2.55 | 2.84 |
| 2.000 | 1.15 | 1.39 | 1.45 | 1.75 | 2.06 | 2.36 | 2.66 | 2.96 |
| 2.500 | 1.46 | 1.77 | 1.85 | 2.23 | 2.62 | 3.01 | 3.39 | 3.78 |