T:: 01978 856555
F:: 01978 856655
email:: sales@scottaire.com
 
 
 
Featured Product

New Louvre Grill
Read more>


Featured Product

New Louvre Grill
Read more>


Featured Product

New Louvre Grill
Read more>


Featured Product

New Louvre Grill
Read more>

 

 

 

EGGCRATE
GRILLES

Grilles with a 12.5mm cell Eggcrate core and
a flanged or channel frame border providing
a high free area. Ideal for sidewall or ceiling return air.

STANDARD •
Code 0103. Eggcrate grille flanged (Fixed core).
Code 0134. Eggcrate grille flanged (Removable core).
Code 0136. Circular Eggcrate grille flanged (Fixed core).
Code 0137. Eggcrate grille with removable core and filter box.
Code 0131. Eggcrate core with flanged border to fit a `T´ bar ceiling system. Tile replacer. (Fixed core).
Code 0133. Eggcrate core with channel frame to fit a `T´ bar ceiling system. Tile replacer. (Fixed core).
Code 0203. Eggcrate core with bevelled edge border to fit a
clip or tegular type ceiling. Specify the make of ceiling.
Tile replacer. (Fixed core).
Code 0206. Eggcrate core with square edged border to fit a
clip or tegular type ceiling. Specify the make of ceiling.
Tile replacer. (Fixed core)

 
Standard Specification

SIZES
Code 0103,0134 & 0137. 50mm increments in nominal size from 100mm to 1200m on length or height.
Code 0136. 50mm increments in nominal size from 100mm to 600mm diameter.
Codes 0131, 0133, 0203 & 0206. See table below.

CONSTRUCTION
Aluminium with mechanical joints to lock the mitred corners.

FINISH
All Codes except Code 0136. Mill finish core with
silver satin anodised border to BS1615 AA5.
Code 0136. Mill finish core and border. We would
recommend a paint finish.

PACKAGING
Each grille is shrink wrapped in polythene with
additional cardboard support to the faces.

FIXINGS
Code 0103, 0134, 0136, 0137. Countersunk screw holes in the border. Size no. 6x11/2´´ self tapping screws

 

 
Optional Alternatives/Additions

provided with each grille and painted the same colour as the grille. (Fixing type 0F1).
See Fixing Methods section for screw fixing centres. Code 0131 & 0133. Lay in to `T´ bar system.
Un-punched borders. (Fixing type 0F2).
Code 0203. & 0206. Require the addition of
appropriate clips to lock into the system.
Un-punched borders. See optional alternatives /
additions page 13. (Fixing type 0F4 & 0F5).

TECHNICAL INFORMATION
See pages 6

D = Nominal Duct size
Model shown is Code 0103 + 0106
Square edge border Eggcrate Grille with Opposed Blade

 

OPTIONAL ALTERNATIVES/ADDITIONS

SIZES

Non-standard sizes. Codes 0103, 0134, 0136 & 0137. We can manufacture almost any size up to1200mm square. Please contact Head Office for details. The product codes become 9103, 9134, 9136 & 9137 respectively.

DAMPER

Opposed blade damper. A clip on opposed blade damper (code 0106) in mill finish aluminium can be fitted to all eggcrates except codes 0133, 0136 and 0137. A circular flap damper (code 0531) can be fitted to code 0136. Non-incremental sises Code becomes 9106.

fixings

Concealed fixings / sub-frames suitable for Codes 0103, 0134, 0136, 0137. (Fixing type OF3.) See Fixing Methods section for details. Codes 0203 and 0206. Clips (Code 0430) are available for locating the grille in a clip type ceiling system (Fixing type 0F4) or Clips (Code 0432) for a tegular type ceiling system (Fixing type 0F5). These clips will fit ceiling systems such as Burgess, Armstrong, CAPL or others. Please specify the type and make of ceiling. See page 15 For details.
Un-punched borders on codes 0103, 0134, 0136 and 0137. Codes have a prefix 9 instead of 0.
(Fixing type OF2.)

Finishes

Any BS, RAL or NCS colour. Code 0145. Please
specify colour reference. We suggest powder coating on top of anodising for swimming pool applications.

SAFETY WIRES

Available for removeable core grilles. They link the core to the frame, until released, in order to minimise
accidents. Minimum 2 per grille. Code 0379.

PAN ADAPTORS & PLENUM BOXES

(Un-insulated)
Top entry pan adaptor without flange (120mm high). Code 0323.
Top entry pan adaptor without flange (17mm high). Code 0338.
This height of pan should only be used where the spigot diameter plus 50 is equal to or more than the smallest nominal dimension of the pan.
Top entry pan adaptor with flange (120mm high). Code 0328.
Side entry plenum box without flange. Code 0335.
Side entry plenum box with flange. Code 0324.
Details are shown below.

Pan adaptors and plenum boxes can be fitted with quadrant dampers in the spigot for either manual (Code 0483) or cord operated control. (Code 0484)

We can also design boxes with non-standard heights where there is limited space above a ceiling or in the cavity.
Please contact our technical staff at Head Office.

Ordering Details

• The code for the grille should always have 13 digits.
See page 1.
• Please always give length first, then height unless circular.
If circular the nominal diameter should be the last 4 digits with zero’s for the length.
• Add codes for additions / alternatives as suffixes.

EXAMPLE:
A standard flanged eggcrate grille for sidewall mounting,
nominal size 300mm x 200mm, with an opposed blade
damper and painted RAL 9010 satin would be coded:- 0103/00300/0200+0106+0145-RAL 9010 satin + OF1

Applications. Extract * Sidewall * Ceiling * Transfer *

D = Nominal Duct size
Model shown is Code 0134 + 0106
Removable Core Eggcrate Grille with Opposed Blade Damper

D = Nominal Duct size
Model shown is Code 0137
Removable Core Eggcrate Grille with Filter Frame (no dampers available)
Suitable for any box filter material up to 40mm thick. If the material is flexible,
a wire mesh screen is added to support the back of the filter. (Code 0410)

Model shown is Code 0133
Eggcrate Core with Channel Frame to fit a ‘T’ Bar Ceiling System
(NO DAMPERS ON THIS MODEL)

Model shown is Code 0131 + 0106
Eggcrate Core with flanged border to fit a ‘T’ Bar Ceiling System

PERFORMANCE DATA FOR
EGGCRATE GRILLES
• To size a grille handling 0.5m3/s at NR30: Place a rule on the volume scale at 0.5m3/s and at NR30 on the sound level scale. Read off total pressure and mark the point at which the rule crosses the pivot point line. Then rotate the rule about the point on the pivot line to give a suitable combination of nominal length and height for the grille. Generally, a duct velocity of 3.5m/s(3.88m/s through the grille) is considered good design practice for eggcrate grilles.
PERFORMANCE DATA
 

 

 

 

 
   
 
 
 
   
   
   
   
   
 
  SCOTTAIRE Davy Way, Llay Industrial Estate, Wrexham,LL12 0PG Tel: 01978 856555 Fax: 01978 856655 Email: sales@scottaire.com