The ADL is the non-fire rated version of the FLDL fire rated fusible link louvre. The blades can be adjusted between the open and closed positions using the operating finger pull (always located on the lower right hand side). It is self-attaching using Phillips head screws that fasten the auxiliary frame to the louvre core, through the cut-out in the door. The corridor side of the frame is free of fasteners for added security. Fractional INCH sizes are not available.
DOOR THICKNESS To suit 44-46mm thick metal or timber doors (35mm, 50mm & 54mm available).
FREE AIR FLOW 40% free area.
LOUVRE MESH The operating finger pull makes it difficult to use mesh on this louvre.
POWDER COATING Care should be taken to ensure that the blades operate correctly after powder coating and before the paint dries.