Double Deflection Grille

Model DD

Dimensions
Minimum size is 100mm x 100mm up to a maximum single section of 1000mm x 1000mm. Special sizes also available.

Features
Double Deflection Grille

Description
Model DD double deflection grille incorporates two sets of individually adjustable blades. The front blades may be either horizontal or vertical. The grille is suitable for sidewall, soffit or cill mounting and may be used for supply or extract applications. Typical installations include offices, shops, hotels and most commercial or industrial buildings. Available as standard in either white or silver stove enamel paint finish. Other paint finishes also available as an option. Standard fixing is with No.8 countersunk headed screws (BY OTHERS) using prepared countersunk screw holes in flange. An optional opposed blade damper can be fitted to the rear of the grille and adjusted through the grille core.

Construction
25mm wide flange frame with corners mitred and welded. Adjustable blades are 5mm wide, 21mm deep on a 20mm pitch and secured into the frame by starlock washers and securing wire.

Specification
Extruded aluminium sections