Egg-Crate Grilles/Registers & Diffusers
Introduction
Silent Features
- ALUGRIDX Egg Crate Grilles and Diffusers are manufactured to highest standards and designed.
- Rigid and strong construction provides noiseless performance.
- Grilles with opposed blade Volume Control Damper and filter gives positive and clean air control.
- Frame and aluminum core are manufactured from high quality extruded aluminum and sheets respectively.
- Perforated core sheet is of high quality mild steel and powder-coated finish.
- Countersunk screw holes for flush heads with border frame.
- Grilles with Polystyrene Egg Crate Core is available in two standard sizes only, i.e. 600 mm x 600 mm and 600 mm x 1200 mm.
| L | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 150 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1100 | 1200 |
AVAILABLE STANDARD SIZES
ALUGRIDX Egg Crate are also available in 50 mm incremen
AVAILABLE STANDARD TYPES & MODELS
| MODEL | NOMENCLATURE | ACCESSORIESS |
|---|---|---|
| EL | 'B' | Bird Screen |
| EL | 'S' | Insect Screen |
| EL | 'V' | Volume Control Damper |
| EL | 'F' | 12.5 mm / 25 mm filter |
| EL | 'FV' | Combine Filter & Volume Control Damper |
| EL | 'T' | Twin / Double Bank |
Dimensional Data
MODEL:- ECG
Return or Exhaust Air Grille having an Egg Crate core for maximum free area of 90%.
• The Egg Crate square core pattern is available in Aluminum.
| Code | Description |
|---|---|
| A | Nominal Size (L x W) |
| B | Neck size (L - 10) x (W - 10) |
| C | Overall size (B + 60) |
| D | Frame Width = 30 mm |
| Cp | Egg Crate Core Pitch = 12.5 mm / 13 mm |
| Fd | Frame depth = 27 mm |
| Dd | Damper depth = 44 mm |
MODEL:- ECG-B & ECG-S
Exhaust Air Grilles same as ECG model but with Bird Screen Mesh or Insect Screen respectively as accessory.
MODEL:- ECR
Egg Crate Register same as ECG model but with an opposed blade Volume Control Damper which can be operated from the face with a key or screw driver.
MODEL: ECG-F
Same as ECG model but with a washable Aluminum Filter.
• The Filter thickness available is 12.5 mm & 25 mm (available in Double Frame).
MODEL: ECR-FV
Supply Register with double frame and Opposed Blade Volume Control Damper.
• The Double Frame fixed by a screwed knob enables easy access to filter and Volume Control Damper.
| Code | Description |
|---|---|
| A | Nominal Size (L x W) |
| B | Neck size (L - 10) x (W - 10) |
| C | Overall size (B + 60) |
| D | Frame Width = 30 mm |
| Cp | Egg Crate Core Pitch = 12.5 mm / 13 mm |
| Fd | Frame depth = 27 mm |
| Fd(i) | Internal Frame Depth = 45 mm |
| Dd | Damper depth = 44 mm |
MODEL: ECG-F
Supply or Return Air Grille with perforated M.S. sheet core having 3.8 mm diameter perforation at a 5 mm pitch.
• Also available for supply air application model PC-V with Opposed Blade Volume Control Damper.
Dimensional Data
Aluminum Egg Crate Core suffix ‘A’
Size – 12.5 mm × 12.5 mm × 0.5 mm.
Size – 13 mm × 13 mm × 0.5 mm.
Both have a free area of ~ 90%
Polystyrene Egg Crate Core suffix ‘P’
Size 14.5 mm × 14.5 mm × 1.6 mm
free area ~ 80%
FIXING DETAILS
• Countersunk screw fixing type ‘S’ is standard and recommended for side wall or will fixing
• Dual frame mounted on hinges and fixed by screwed knob fixing type ‘K’.
Quick Selection
By limiting effective jet velocity to 7 m/s all grille sizes shown meet NC 35 assuming 8 dB room attenuation
(selection based without damper or with damper fully open)
Ordering Procedure
Ordering Data
Available Finish
Powder-coated color finish
Natural anodized aluminum
Mill finish aluminum
Bronze anodized