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Pitch Louvre Grilles (Made to Order)
Pitch louvre grilles in 38, 50 and 75 mm pitch, made to order in non-standard sizes. Suitable for supply and extract air and for mounting internally or externally on a wall; the 38 mm pitch gives a neat appearance on smaller louvre panels while maintaining good rain defence. For standard stock sizes, see the Square Outside Air Louvre (OAL-S).
Non-standard sizes in 38, 50 and 75 mm pitch. Made to order.
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Sizes & item codes
Pitch options
Pitch (mm) | Type Code |
|---|---|
38 | WL-38 |
50 | WL-50 |
75 | WL-75 |
Options
Order code: type (WL-38, WL-50 or WL-75) – frame (F standard flange, R recessed frame) – fixings (SF flange holes, 0 no flange holes, RF rear fixing brackets) – size – RAL colour. Example: 10 No. WL-38-F-SF-500 x 500-RAL 9006. For intake air, multiply the pressure (Pa) by 1.25; with insect mesh, multiply by 1.1. Selection data for each pitch (performance table and nomograms) is on the data sheet. Made to order in non-standard sizes; for stock sizes see the Square Outside Air Louvre (OAL-S).
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UK-stocked. Trade pricing available. Fast delivery nationwide.