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 (0.300 - 0.900) | |||||||
| 0.300 | 0.400 | 0.450 | 0.500 | 0.600 | 0.750 | 0.800 | 0.900 | |
| 0.200 | 0.01 | 0.02 | 0.02 | 0.03 | 0.03 | 0.04 | 0.04 | 0.05 |
| 0.300 | 0.03 | 0.05 | 0.05 | 0.06 | 0.07 | 0.09 | 0.10 | 0.11 |
| 0.400 | 0.05 | 0.07 | 0.08 | 0.08 | 0.10 | 0.13 | 0.14 | 0.16 |
| 0.500 | 0.06 | 0.09 | 0.10 | 0.12 | 0.14 | 0.18 | 0.19 | 0.22 |
| 0.600 | 0.08 | 0.11 | 0.13 | 0.14 | 0.17 | 0.22 | 0.24 | 0.27 |
| 0.700 | 0.10 | 0.14 | 0.15 | 0.17 | 0.21 | 0.27 | 0.29 | 0.33 |
| 0.800 | 0.11 | 0.16 | 0.18 | 0.20 | 0.24 | 0.31 | 0.33 | 0.38 |
| 0.900 | 0.13 | 0.18 | 0.21 | 0.23 | 0.28 | 0.36 | 0.39 | 0.44 |
| 1.000 | 0.14 | 0.20 | 0.23 | 0.26 | 0.31 | 0.40 | 0.43 | 0.49 |
| 1.100 | 0.16 | 0.23 | 0.26 | 0.29 | 0.35 | 0.45 | 0.48 | 0.55 |
| 1.200 | 0.17 | 0.24 | 0.28 | 0.31 | 0.38 | 0.49 | 0.52 | 0.59 |
| 1.300 | 0.19 | 0.27 | 0.31 | 0.35 | 0.43 | 0.54 | 0.58 | 0.66 |
| 1.400 | 0.21 | 0.29 | 0.33 | 0.37 | 0.45 | 0.58 | 0.62 | 0.70 |
| 1.500 | 0.23 | 0.32 | 0.36 | 0.41 | 0.50 | 0.63 | 0.68 | 0.77 |
| 1.600 | 0.24 | 0.33 | 0.38 | 0.43 | 0.52 | 0.67 | 0.72 | 0.81 |
| 1.700 | 0.26 | 0.36 | 0.41 | 0.46 | 0.57 | 0.72 | 0.77 | 0.88 |
| 1.800 | 0.27 | 0.38 | 0.43 | 0.49 | 0.60 | 0.76 | 0.81 | 0.92 |
| 1.900 | 0.29 | 0.41 | 0.46 | 0.52 | 0.64 | 0.81 | 0.87 | 0.98 |
| 2.000 | 0.30 | 0.42 | 0.48 | 0.54 | 0.67 | 0.85 | 0.91 | 1.03 |
| 2.500 | 0.39 | 0.54 | 0.62 | 0.69 | 0.85 | 1.08 | 1.16 | 1.31 |