www.nationalairparts.com.au | All prices in this catalogue are exclusive of GST Page 23 Grilles & Diffusers - Metal Return Air Grille - Eggcrate Description Suitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications. Construction From extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium. Performance Data Data is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters. Size Available in standard sizes from 150x150 to 1210x605. Also available in any custom size on request. Round Eggcrate Loose Core Eggcrate OOSE CORE EGGCRATE Removable Core Eggcrate VABLE CORE EGGCRATE Hinged Eggcrate C/W Filter & Electrostatic Filter 34 13 X = Box Size Exact Neck = X - 10 Face = X + 38 5 2 <A> <B> <C>x<D> 50 25 X = Box Size Act. Neck = X - 10 52 Face = X + 38 25
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Return Air Grilles QUALITY AIR EQUIPMENT Return Air ...nationalairparts.com.au/sites/default/files/Reducing Neck (w_o clips... · Data is based on grilles without additional filters.
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www.nationalairparts.com.au | All prices in this catalogue are exclusive of GST Page 23
Return Air GrillesEggcrate Grilles Dimensional Drawings
FIXED & LOOSE CORE EGGCRATE
REMOVABLE CORE EGGCRATE
X = Box Size
Act. Neck = X - 10
52
Face = X + 38
25
<A>
<B>
<C>x<D>
5025
HINGED EGGCRATE C/W FILTER
34
13
X = Box Size
Exact Neck = X - 10
Face = X + 38
5
25
Return Air Grille - Eggcrate DescriptionSuitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications.ConstructionFrom extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium.Performance DataData is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters.SizeAvailable in standard sizes from 150x150 to 1210x605. Also available in any custom size on request.
Suitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications.
Construction
From extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium.
Technical Data
Data is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters,
Sizes
Available in standard sizes from 150x150 to 1210x605. Also available in any custom size on request.
Suitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications.
Construction
From extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium.
Technical Data
Data is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters,
Sizes
Available in standard sizes from 150x150 to 1210x605. Also available in any custom size on request.
Suitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications.
Construction
From extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium.
Technical Data
Data is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters,
Sizes
Available in standard sizes from 150x150 to 1210x605. Also available in any custom size on request.
Suitable for handling large air volumes, eggcrate grilles are ideal as intakes to air handling units, and for areas where high changeover rates are required. A 90% free area makes eggcrate grilles the most efficient grilles available for return air applications.
Construction
From extruded aluminium for both core and frame. The frame is held together using punched in steel corner braces, while the core is held in by the unique frame design. The centre core can be offered as either fixed, removable or hinged. Eggcrates are finished in standard white Dulux powder coating. Matching Opposed Blade Dampers are also available constructed from black anodised extruded aluminium.
Technical Data
Data is based on Isothermal conditions with the grille installed into an unobstructed sidewall and at a height of 1.2m from the floor level. Noise Ratings are based on a room absorption level of 10db. Data is based on grilles without additional filters,
Sizes
Available in standard sizes from 150x150 to 1210x605. Also available in any custom size on request.