A low cost, fully aluminium grille with individually adjustable blades.
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Designed for general use in a myriad of indoors applications, Series SD Single Deflection grilles are suitable for supply or extract in walls, ceilings and ductwork.
Incorporating a single bank of individually adjustable blades, Single Deflection grilles are a step up from supply units like air valves. Able to handle much larger air volumes, and with the adjustable blades enabling throw to be directed anywhere in a single plane.
With an aerodynamic design creating minimal turbulence, the fully extruded aluminium blades of Single Deflection Grilles allow throw adjustment, whilst keeping noise and pressure drops to a minimum. When being used for extract this results in the advantages of being able to handle greater air volumes.
Rear mounted opposed blade dampers are available factory fitted to your Single Deflection Grille. With the grille blades set at a sufficient spacing to allow adjustment through the damper face with a screwdriver, there is no need a specify a removable core to enable volume control adjustment.
| SD | SD-D | |
| Application | General Purpose Internal Grille | General Purpose Internal Grille c/w Opposed Blade Damper |
| Recommended Use | Supply and Extract | Supply and Extract |
| Overall Dimension | Nominal + 45mm | Nominal + 45mm |
| Overall Depth | 28mm | 72mm |
| Minimum Wall Depth | 23mm | 67mm |
| Free Area | 80% | 80% (Damper Blades Fully Open) |
| Mass per m2 | 8.5kg | 16kg |
| Standard Frame | 32mm Bevelled | 32mm Bevelled |
| Standard Finish | Satin Anodised (AA5) | Satin Anodised (AA5) |
| Material | Extruded Aluminium | Extruded Aluminium |
| Blade Type | Single Bank, Individually Adjustable | Single Bank, Individually Adjustable |
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Finish In addition to the standard finish, we offer polyester powder coating in all RAL and BS colours |
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25mm Flat or 32mm Bevelled Frame The standard frame choice across the whole range of HVC grilles |
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Opposed Blade Damper Designed to be fitted to the rear of a wide range of grilles and diffusers. Easy to adjust and enable localised volume control |
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Hinged Core Enables access to ductwork internals or dampers through the grille or diffuser face, utilise a piano style hinge |
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Removable Core Unlike hinged cores, removable cores can be fully removed from the frame for unsurpassed accessibility |
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Greater Adjustability
Adding another set of blades to single deflection grilles, Double Deflection Grilles have a much greater level of adjustability |
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Vision Proof
Single deflection grilles allow complete line of sight, making them unsuitable for washrooms etc. Non-Vision Grilles block this line, preserving the privacy of individuals inside |
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Greater Extract Performance
Although good extract grilles, Series SD Grilles are not as good as Egg Crate Grilles. Boasting a 90% free area, Series ECG Grilles are the industry standard extract grille |