SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille

Product Code: SD/DD/FB

Versatile and cost-effective, with either one or two banks of individually adjustable blades, or a single bank of blades fixed at 0°, 15° or 45°.

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Deflection model

Opposed blade damper (factory fitted)

Width (mm)

Height (mm)

Frame type

Fixing holes

Finish (standard unless stated)

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Description
About SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille

About SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille

The deflection range of grilles are versatile and cost-effective, and are available in three models:
- SD - Single deflection
  A single bank of individually adjustable blades, held in place by a high tensile spring wire.
- DD - Double deflection
  Two banks of individually adjustable blades set perpendicularly to each other, held in place with high tensile spring wire.
- FB - Fixed blade
  A single bank of fixed blades, set at either 0°, 15° or 45°.
All series are manufactured from the same aluminium extrusions for a consistent appearance across the range.

Options include hinged and removable cores, rear-mounted opposed blade dampers for airflow balancing, and polyester powder coating to any RAL/BS colour.

HVC hold large quantities of popular sizes of double deflection grille in stock, giving us the ability to supply even the largest orders on a next day basis, otherwise, grilles are manufactured in house to your requirements, with our industry beating lead times.

Please download the product PDF for detailed information and ordering codes.

If you have any questions about our single deflection, fixed blade, or any other type of grilles, please contact us today.
Specification
SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille Specifications
Design, construction and finish:

Material: Extruded aluminium frame and blades, high tensile steel wire and steel lock washers
Standard frame: SD and FB - 32BS (32mm bevelled small) DD - 32BD (32mm bevelled large)
Optional frame(s): 25F (25mm flat) SML (Surface mounted large)
Standard finish: Satin anodised (AA5)
Optional finishes: Polyester powder coated to any RAL or BS colour
Properties:

Free area: 80% maximum
Mass/m2: SD and FB - 8.5 kg, DD - 14.5 kg
Mass/m2 c/w opposed blade damper: SD and FB - 16.5 kg, DD - 22.5 kg
Recommended use:

Internal/External use: Internal
Recommended use: SD and DD - Supply, FB - Intake and supply
Information above is for quick reference purposes only, please see the full product datasheet for detailed information
Downloads
Downloads for SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille
- Series SD/DD/FB - Product datasheet
- O&M manual - Grilles, diffusers, louvres
Archived Downloads
Archived Downloads for SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille
- Archived Downloads Test Title

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SD/DD/FB - Single Deflection, Double Deflection and Fixed Blade Grille