Osbournes Grilles, Diffusers & Louvres
 

WPL80 Louvres   Free Area % (width 1.000 - 2.500)

A weather resistant louvre ideal for commercial ventilation applications. The WPL80 comes in a channel or flange option, with bird mesh fitted to the rear as standard.

Louvre Size v.s. Free Area Percentage

Height Width (1.000 - 2.500 )
1.000 1.200 1.250 1.500 1.750 2.000 2.250 2.500
0.200 20.0 20.1 20.2 20.3 20.4 20.5 20.5 20.6
0.300 26.6 26.8 26.9 27.1 27.2 27.3 27.4 27.4
0.400 30.6 30.9 31.0 31.2 31.3 31.4 31.5 31.6
0.500 35.2 35.5 35.5 35.8 35.9 36.1 36.2 36.3
0.600 38.2 38.5 38.6 38.8 39.0 39.2 39.3 39.4
0.700 39.9 40.3 40.3 40.6 40.8 41.0 41.1 41.2
0.800 39.9 40.3 40.3 40.6 40.8 41.0 41.1 41.2
0.900 39.9 40.3 40.3 40.6 40.8 41.0 41.1 41.2
1.000 40.0 40.3 40.4 40.7 40.9 41.0 41.2 41.3
1.100 41.2 41.6 41.6 41.9 42.1 42.3 42.4 42.5
1.200 42.2 42.6 42.6 42.9 43.1 43.3 43.4 43.5
1.300 43.0 43.3 43.4 43.7 43.9 44.1 44.2 44.3
1.400 42.8 43.1 42.2 43.5 43.7 43.9 44.0 44.2
1.500 42.6 42.9 43.0 43.3 43.5 43.7 43.8 43.9
1.600 42.4 42.8 42.8 43.1 43.4 43.5 43.6 43.7
1.700 43.0 43.4 43.4 43.7 43.9 44.1 44.2 44.3
1.800 43.5 43.9 44.0 44.3 44.5 44.7 44.8 44.9
1.900 44.1 44.4 44.5 44.8 45.0 45.2 45.3 45.4
2.000 43.9 44.3 44.4 44.7 44.9 45.0 45.2 45.3
2.500 44.6 45.0 45.0 45.4 45.6 45.7 45.9 46.0