Osbournes Grilles, Diffusers & Louvres
 

WPL50 Louvres   Free Area % (width 0.300 - 0.900)

A weather resistant louvre ideal for commercial and residential ventilation applications. Also used in commercial window and door joinery. The WPL50 Louvre comes in a channel or a flange frame option, with birdmesh fitted to rear as standard.

Louvre Size v.s. Free Area Percentage

Height Width (0.300 - 0.900)
0.300 0.400 0.450 0.500 0.600 0.750 0.800 0.900
0.200 17.3 18.0 18.2 18.4 18.7 18.9 19.0 19.1
0.300 23.1 24.0 24.3 24.5 24.9 25.2 25.3 25.5
0.400 26.0 27.0 27.3 27.6 28.0 28.4 28.5 28.7
0.500 27.7 28.8 29.2 29.4 29.9 30.3 30.4 30.6
0.600 28.9 30.0 30.4 30.7 31.1 31.6 31.7 31.9
0.700 29.7 30.9 31.2 31.5 32.0 32.5 32.6 32.8
0.800 29.8 30.9 31.3 31.6 32.1 32.5 32.6 32.8
0.900 29.8 31.0 31.3 31.6 32.1 32.6 32.7 32.9
1.000 29.8 31.0 31.4 31.7 32.1 32.6 32.7 32.9
1.100 29.9 31.1 31.5 31.8 32.2 32.7 32.8 33.0
1.200 30.3 31.5 31.9 32.2 32.7 33.1 33.7 33.4
1.300 30.7 31.8 32.2 32.6 33.0 33.5 33.6 33.8
1.400 31.0 32.1 32.5 32.9 33.3 33.8 33.9 34.1
1.500 31.2 32.4 32.8 33.1 33.6 34.1 34.2 34.4
1.600 31.4 32.6 33.0 33.4 33.8 34.3 34.4 34.6
1.700 31.6 32.8 33.2 33.5 34.0 34.5 34.6 34.8
1.800 31.5 32.7 33.1 33.4 33.9 34.4 34.5 34.7
1.900 31.4 32.6 33.0 33.3 33.8 34.3 34.4 34.6
2.000 31.3 32.5 32.9 33.2 33.7 34.2 34.3 34.5
2.500 31.9 33.1 33.5 33.9 34.3 34.8 35.0 35.2