www.nationalairparts.com.au | All prices in this catalogue are exclusive of GST Page 23

Grilles & Diffusers - Metal

QUALITY AIR EQUIPMENT

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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.

Rou

nd E

ggcr

ate

QUALITY AIR EQUIPMENT

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All prices are GST exclusive © Quality Air Equipment Pty Ltd 2010

Return Air GrillesEggcrate Grilles

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.

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.

FIXED CORE EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

HINGED EGGCRATE C/W FILTER

HINGED EGGCRATE C/W ELECTROSTATIC FILTER

ROUND EGGCRATE

Code Nom. Neck Nom. NeckExamples Metric Imperial

EGR12 300 Dia 12

EG1212 300 x 300 12 x 12

LCEG1212 300 X 300 12 X 12

RCEG1010 250 x 250 10 x 10

HERAG88 200 x 200 8 x 8

EFHERAG2016 500 X 400 20 X 16

FIXED CORE EGGCRATE

HINGED C/W ELECTROSTATIC FILTER EGGCRATE

HINGED C/W FILTER EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

ROUND EGGCRATE1

2

3

4

5

6

Loos

e C

ore

Eggc

rate

QUALITY AIR EQUIPMENT

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All prices are GST exclusive © Quality Air Equipment Pty Ltd 2010

Return Air GrillesEggcrate Grilles

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.

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.

FIXED CORE EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

HINGED EGGCRATE C/W FILTER

HINGED EGGCRATE C/W ELECTROSTATIC FILTER

ROUND EGGCRATE

Code Nom. Neck Nom. NeckExamples Metric Imperial

EGR12 300 Dia 12

EG1212 300 x 300 12 x 12

LCEG1212 300 X 300 12 X 12

RCEG1010 250 x 250 10 x 10

HERAG88 200 x 200 8 x 8

EFHERAG2016 500 X 400 20 X 16

FIXED CORE EGGCRATE

HINGED C/W ELECTROSTATIC FILTER EGGCRATE

HINGED C/W FILTER EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

ROUND EGGCRATE1

2

3

4

5

6

Rem

ovab

le C

ore

Eggc

rate

QUALITY AIR EQUIPMENT

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Grille

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All prices are GST exclusive © Quality Air Equipment Pty Ltd 2010

Return Air GrillesEggcrate Grilles

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.

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.

FIXED CORE EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

HINGED EGGCRATE C/W FILTER

HINGED EGGCRATE C/W ELECTROSTATIC FILTER

ROUND EGGCRATE

Code Nom. Neck Nom. NeckExamples Metric Imperial

EGR12 300 Dia 12

EG1212 300 x 300 12 x 12

LCEG1212 300 X 300 12 X 12

RCEG1010 250 x 250 10 x 10

HERAG88 200 x 200 8 x 8

EFHERAG2016 500 X 400 20 X 16

FIXED CORE EGGCRATE

HINGED C/W ELECTROSTATIC FILTER EGGCRATE

HINGED C/W FILTER EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

ROUND EGGCRATE1

2

3

4

5

6

Hin

ged

Eggc

rate

C/W

Filt

er

& E

lect

rost

atic

Filt

er

QUALITY AIR EQUIPMENT

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Grille

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All prices are GST exclusive © Quality Air Equipment Pty Ltd 2010

Return Air GrillesEggcrate Grilles

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.

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.

FIXED CORE EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

HINGED EGGCRATE C/W FILTER

HINGED EGGCRATE C/W ELECTROSTATIC FILTER

ROUND EGGCRATE

Code Nom. Neck Nom. NeckExamples Metric Imperial

EGR12 300 Dia 12

EG1212 300 x 300 12 x 12

LCEG1212 300 X 300 12 X 12

RCEG1010 250 x 250 10 x 10

HERAG88 200 x 200 8 x 8

EFHERAG2016 500 X 400 20 X 16

FIXED CORE EGGCRATE

HINGED C/W ELECTROSTATIC FILTER EGGCRATE

HINGED C/W FILTER EGGCRATE

LOOSE CORE EGGCRATE

REMOVABLE CORE EGGCRATE

ROUND EGGCRATE1

2

3

4

5

6

QUALITY AIR EQUIPMENT

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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

25QUALITY AIR EQUIPMENT

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Grille

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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

QUALITY AIR EQUIPMENT

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Grille

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rs St

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rd R

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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

QUALITY AIR EQUIPMENT

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Grille

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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

QUALITY AIR EQUIPMENT

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Grille

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© Quality Air Equipment Pty Ltd 2010 All prices are GST exclusive

ROUND EGGCRATE

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

Page 28 www.nationalairparts.com.au | © Malsa Pty Ltd

Grilles & Diffusers - MetalQuick Selection Guide

Nom. Neck (mm) Equivalent Sizes (mm) Core Area

(m2) Core Velocity (m/s) 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0

Pressure Drop (Pa) 1 3 4 6 8 10 13 16 23

150 x 150 225 x 100 0.020 Flow Rate (l/s) 30 41 51 61 71 81 91 101 122

NC Level <15 <15 <15 19 23 26 29 32 37

200 x 150 250 x 125 300 x 100 0.027Flow Rate (l/s) 41 54 68 81 95 108 122 135 162

NC Level <15 <15 <15 19 23 26 29 32 37

250 x 150 300 x 125 400 x 100 0.034Flow Rate (l/s) 51 68 84 101 118 135 152 169 203

NC Level <15 <15 16 19 23 26 29 32 37

200 x 200 350 x 125 0.036Flow Rate (l/s) 54 72 90 108 126 144 162 180 216

NC Level <15 <15 16 19 23 26 30 33 38

300 x 150 450 x 100 0.041Flow Rate (l/s) 61 81 101 122 142 162 182 203 243

NC Level <15 <15 16 19 24 26 30 33 38

300 x 200 400 x 150 600 x 100 0.054Flow Rate (l/s) 81 108 135 162 189 216 243 270 324

NC Level <15 <15 16 20 24 27 30 33 38

250 x 250 350 x 175 650 x 100 0.056Flow Rate (l/s) 84 113 141 169 197 225 253 281 338

NC Level <15 <15 16 20 24 27 30 34 39

450 x 150 350 x 200 750 x 100 700 x 100 0.061Flow Rate (l/s) 91 122 152 182 213 243 273 304 365

NC Level <15 <15 16 20 25 27 30 34 39

300 x 250 400 x 200 500 x 200 600 x 125 0.068Flow Rate (l/s) 101 135 169 203 236 270 304 338 405

NC Level <15 <15 16 20 25 27 31 35 39

300 x 300350 x 250 600 x 150 450 x 200

950 x 1000.081

Flow Rate (l/s) 122 162 203 243 284 324 365 405 486

NC Level <15 <15 16 21 25 28 31 35 40

350 x 350400 x 300 600 x 200 500 x 250

850 x 1500.110

Flow Rate (l/s) 165 221 276 331 386 441 496 551 662

NC Level <15 <15 17 21 26 28 31 35 40

450 x 300400 x 350 700 x 200 550 x 250

950 x 1500.122

Flow Rate (l/s) 182 243 304 365 425 486 547 608 729

NC Level <15 <15 17 21 26 28 31 36 41

600 x 250 500 x 300 750 x 200 0.135Flow Rate (l/s) 203 270 338 405 473 540 608 675 810

NC Level <15 <15 17 22 26 28 32 36 41

400 x 400 400 x 350 750 x 200 550 x 300 0.144Flow Rate (l/s) 216 288 360 432 504 576 648 720 864

NC Level <15 <15 17 22 26 29 32 37 42

600 x 300450 x 400 750 x 250 500 x 350

900 x 2000.162

Flow Rate (l/s) 243 324 405 486 567 648 729 810 972

NC Level <15 <15 17 22 26 29 32 37 42

450 x 450500 x 400 700 x 300 600 x 350

800 x 2500.182

Flow Rate (l/s) 273 365 456 547 638 729 820 911 1094

NC Level <15 <15 17 22 27 29 33 38 43

750 x 300500 x 450 650 x 350 550 x 400

900 x 2500.203

Flow Rate (l/s) 304 405 506 608 709 810 911 1013 1215

NC Level <15 <15 17 22 27 29 33 38 43

500 x 500600 x 450 750 x 350 650 x 400

900 x 3000.225

Flow Rate (l/s) 338 450 563 675 788 900 1013 1125 1350

NC Level <15 <15 17 23 27 30 33 38 44

550 x 550600 x 500 750 x 400 650 x 450

900 x 3500.272

Flow Rate (l/s) 408 545 681 817 953 1089 1225 1361 1634

NC Level <15 <15 17 23 27 30 34 39 44

750 x 450 600 x 550 1000 x 350 850 x 400 0.304Flow Rate (l/s) 456 608 759 911 1063 1215 1367 1519 1823

NC Level <15 <15 17 23 27 30 34 39 45

600 x 600650 x 550 800 x 450 700 x 500

900 x 4000.324

Flow Rate (l/s) 486 648 810 972 1134 1296 1458 1620 1944

NC Level <15 15 17 24 28 31 35 39 45

900 x 450 800 x 500 1150 x 350 1000 x 400 0.365Flow Rate (l/s) 547 729 911 1094 1276 1458 1640 1823 2187

NC Level <15 16 17 24 28 32 35 40 45

650 x 650 700 x 600 1200 x 350 0.380Flow Rate (l/s) 570 761 951 1141 1331 1521 1711 1901 2282

NC Level <15 16 17 24 28 32 35 40 46

750 x 600700 x 650 900 x 500 800 x 550

1000 x 4500.405

Flow Rate (l/s) 608 810 1013 1215 1418 1620 1823 2025 2430

NC Level <15 16 18 25 28 32 36 41 46

700 x 700 750 x 650 1000 x 500 850 x 550 0.441Flow Rate (l/s) 662 882 1103 1323 1544 1764 1985 2205 2646

NC Level <15 17 18 25 29 33 37 41 47

900 x 600 750 x 700 1100 x 500 1000 x 550 0.486Flow Rate (l/s) 729 972 1215 1458 1701 1944 2187 2430 2916

NC Level <15 17 18 25 29 33 37 41 47

750 x 750 850 x 650 1200 x 500 950 x 600 0.506Flow Rate (l/s) 759 1013 1266 1519 1772 2025 2278 2531 3038

NC Level <15 17 19 26 29 33 37 42 48

800 x 800 900 x 700 1200 x 600 1000 x 650 0.576Flow Rate (l/s) 864 1152 1440 1728 2016 2304 2592 2880 3456

NC Level <15 18 20 27 30 34 38 42 48

900 x 900 950 x 850 1200 x 650 1000 x 750 0.729Flow Rate (l/s) 1094 1458 1823 2187 2552 2916 3281 3645 4374

NC Level <15 18 20 27 30 34 38 43 49