Double Deflection Grille (DD)

Models-DD.jpg
Models-DD.jpg

Double Deflection Grille (DD)

Key Features

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. 

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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.

Dimensions

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

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.