2 supply_air_grilles set catalogue.pdf

Ceiling Diffusers

Supply Air Grilles

Return Air Grilles

Louvers

Jet Diffusers

Floor Diffusers

Dampers

Damper Actuators

VAV Terminal Units

Flexible Air Duct

SUPPLY AIR GRILLES CONTENTS

• GV & GH Double Deflection Supply Air Grille

• GA Supply Air Linear Bar Grille

• RA/RAC Bar Grille

• Supply Air Grilles Accessories

CONTENTS

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

SUPPLY AIR GRILLES

GV & GH Double Deflection Supply Air Grille

n

n

n

n

n

n


Materials• GV-T & GH-T Frame 0.7mm, blade 3.4mm SPGC galvanized steel.• GV-S & GH-S Frame 0.7mm, blade 0.3mm stainless steel SUS. 304.• GV-A & GH-A Extruded aluminium A6063.

Surface Finish• GV-T & GH-T Baked white powder coat as standard.• GV-S & GH-S Stainless steel original colour.• GV-A & GH-A Baked white powder coat or natural anodized.

Features• Model GV & GH is made up of two sets of individually adjustable air foil blades.• The grille will come in more sections for blade length that is more than 600mm.• Non-standard sizes are available.• Approximately 70% free area when blades are fully open.

Accessories• G1 Opposed blade damper.• G2 Volume extractor.

Models• GV: Vertical blades in front.• GH: Horizontal blades in front.

GV & GH Construction Illustrations

n GV & GH Physical Dimension Unit:mm

Thickness Standard SizeW x H

350 x150400 x 150450 x 150500 x 150500 x 250

DFace Size

W+54H+54

W+60H+60

Frame BladeOrder Key

GV & GH - T + G1 - 350 x 150

ModelMaterials

Accessories

W H

Materials

SPGC Steel

Stainless Steel SUS. 304

Extruded Aluminium A6063

Model

GV-T & GH-T

GV-S & GH-S

GV-A & GH-A

0.7

0.7

1.0

3.4

0.3

3.8

BWall Size

W+20H+20

ADuct Size

W+10H+10

GV & GH page 1 of 6

SUPPLY AIR GRILLES


n

n

n

n


Materials • G1-T SPGC galvanized steel.

Surface Finish• G1-T Matt black as standard.• The G1 opposed blade damper is gear operated & can be set at fully open, half open & fully close.• G1 Maximum dimension is 500mm x 500mm. Damper size bigger than this will come in sections.

GV & GV+G1 Physical Dimension Unit:mm

GH & GH+G1 Physical Dimension Unit:mm

• G2 volume extractor helps in balancing by guiding a regulated amount of air for supply air grilles from the main duct & enable even air distribution over the entire surface of grille.• Maximum angle for G2 is 35˚ - 40˚.• Materials for G2 is 1.0mm SPGC galvanized steel & surface finish is matt black.

Model

GV

GV + G1

Depth

48

1231A

Neck Size

W x H

W x H

A Duct SizeW+10H+10W+15H+15

B Wall SizeW+20H+20W+20H+20

D Face SizeW+54 / 60H+54 / 60W+54 / 60H+54 / 60

Model

GH

GH + G1

Depth

48

1231A

Neck Size

W x H

W x H



D Face SizeW+54 / 60H+54 / 60W+54 / 60H+54 / 60

• Uneven air distribution • Even air distribution with G2

GV+G1 & GH+G1 Opposed Blade Damper

GV+G2 & GH+G2 Volume Extractor

GV & GH page 2 of 6

SUPPLY AIR GRILLES



n GV & GH Performance Data (1)

Neck SizeArea m2

0.01

0.015

0.02

0.025

0.03

0.035

0.04

0.045

Neck Sizemm

100 x 100

150 x 100

250 x 100

150 x 150200 x 100

200 x 150300 x 100

250 x 150350 x 100

200 x 200400 x 100

300 x 150450 x 100

Neck Vel. M/S

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

TotalPress

(mmAq)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

31.71.92.8108

3.0 - 4.82.4 - 3.81.5 - 2.4

-162

3.3 - 5.22.8 - 4.21.5 - 2.7

-216

4.3 - 6.23.4 - 4.9.9 - 3.0

-170

4.8 - 6.83.8 - 5.42.4 - 3.3

-324

5.5 - 7.74.3 - 6.22.5 - 3.7

-378

5.6 - 8.34.5 - 6.52.8 - 4.0

-432

6.2 - 8.84.9 - 7.03.0 - 4.3

-486

6.8 - 9.35.4 - 7.53.3 - 4.6

21

4.53.84.26.4162

4.2 - 6.03.3 - 4.82.1 - 3.0

23243

4.7 - 6.63.8 - 5.32.3 - 3.3

25324

5.2 - 7.64.2 - 6.02.8 - 3.5

27405

6.2 - 8.44.8 - 6.73.1 - 4.2

28486

6.8 - 9.45.3 - 7.43.2 - 4.6

28567

7.2 - 10.05.7 - 8.13.7 - 4.9

29648

7.6 - 10.86.2 - 8.73.9 - 5.3

30729

8.1 - 11.46.5 - 9.14.1 - 5.7

31

3.52.22.53.8126

3.7 - 5.23.0 - 4.21.8 - 2.7

-189

3.9 - 5.73.1 - 4.62.1 -3.0

-252

4.5 - 6.73.7 - 5.22.2 - 3.1

21315

5.0 - 7.24.2 - 5.72.7 - 3.6

22378

5.8 - 8.34.6 - 6.52.8 - 4.0

22441

6.5 - 8.95.2 - 7.13.2 - 4.3

23504

6.7 - 9.45.4 - 7.63.4 - 4.6

24567

7.1 - 9.95.6 - 8.03.5 - 4.9

25

43.03.55.0144

3.8 - 5.73.0 - 4.42.0 - 2.6

-216

4.5 - 6.13.6 - 4.82.1 - 3.1

21288

4.9 - 7.04.0 - 5.52.5 - 3.4

25360

5.7 - 7.84.5 -6.32.9 - 3.9

26432

6.5 - 8.95.2 - 7.13.1 - 4.3

26504

6.8 - 9.55.3 - 7.73.5 - 4.6

27576

7.3 - 10.15.7 - 8.23.7 - 5.0

28648

7.8 - 10.86.2 - 873.9 - 5.3

28

54.65.27.8180

4.5 - 6.43.6 - 5.12.2 - 3.2

25270

5.0 - 6.94.0 - 5.62.5 - 3.4

27360

5.5 - 8.04.5 - 6.53.0 - 3.7

29450

6.4 - 8.85.1 - 7.03.3 - 4.6

30540

7.1 - 9.85.5 - 7.73.4 - 4.9

30630

7.7 - 10.66.2 - 8.63.9 - 5.2

32720

7.9 - 11.36.4 - 9.04.1 - 5.6

33810

8.4 - 12.06.8 - 9.54.4 - 6.2

35

2.51.21.42.190

2.4 - 4.21.8 - 3.21.2 - 2.0

-135

2.5 - 4.51.9 - 3.61.2 - 2.4

-180

3.4 - 5.52.8 - 4.31.6 - 2.8

-225

3.9 - 6.43.0 - 5.22.1 - 3.0

-270

4.3 - 6.93.4 - 5.42.2 - 3.3

-315

4.8 - 7.53.8 - 5.72.3 - 3.6

-360

5.1 - 7.94.1 - 6.32.7 - 3.9

-405

5.3 - 8.44.4 - 6.82.9 - 4.3

-

20.80.91.372

1.8 - 3.51.5 - 3.01.0 - 1.8

-108

2.2 - 3.91.8 - 3.11.0 - 2.1

-144

2.8 - 4.82.2 - 4.01.3 - 2.6

-180

3.2 - 5.72.6 - 4.51.5 - 2.7

-216

3.5 - 6.22.8 - 4.91.8 - 3.1

-252

3.8 - 6.83.0 - 5.21.8 = 3.2

-288

4.0 - 7.23.2 - 5.62.0 - 3.4

-324

4.2 - 7.73.5 - 6.22.3 - 3.7

-

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

• Throw is based on terminal velocities of 0.5 m/s - 0.25 m/s respectively.• NC value is based on a room absorption of 10 dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 20.• With G1 damper, the pressure loss is 1.136P, and add 2 for NC value.

GV & GH page 3 of 6

SUPPLY AIR GRILLES




Neck SizeArea m2

0.05

0.06

0.07

0.08

0.09

0.1

0.12

0.13

Neck Sizemm

250 x 200350 x 150500 x 100550 x 100

350 x 250400 x 200550 x 150800 x 100

250 x 250300 x 200400 x 150600 x 100650 x 100

300 x 300450 x 200600 x 150850 x 100900 x 100

300 x 250350 x 200450 x 150500 x 150700 x 100750 x 100

450 x 300500 x 250550 x 250650 x 200850 x 150900 x 150

400 x 300450 x 250550 x 200600 x 200750 x 150800 x 150

350 x 300400 x 250500 x 200650 x 150700 x 1501000 x 100

Neck Vel. M/S

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

TotalPress

(mmAq)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

31.71.92.8540

6.9 - 9.75.5 - 7.83.4 - 4.9

21648

7.4 - 10.55.9 - 8.43.8 - 5.2

21756

8.3 - 11.76.6 - 9.44.2 - 5.8

21864

8.9 - 12.47.0 - 9.94.4 - 6.2

22972

9.4 - 13.27.5 - 10.54.7 - 6.6

231080

9.9 - 13.98.0 - 11.25.0 - 7.0

231296

11.0 - 15.18.8 - 12.15.4 - 7.5

241404

11.5 - 15.79.3 - 12.75.8 - 7.8

24

4.53.84.26.4810

8.5 - 11.96.8 - 9.54.3 - 5.9

32972

9.4 - 13.17.6 - 10.44.7 - 6.6

321134

10.2 - 14.28.2 - 11.45.2 - 7.2

331296

11.0 - 15.28.7 - 12.25.6 - 7.7

341458

11.7 - 16.29.3 - 12.95.8 - 8.0

351620

12.2 - 16.99.8 - 13.66.1 - 8.2

351944

13.4 - 18.510.7 - 14.86.6 - 9.3

362106

14.0 - 19.211.0 - 15.16.7 - 9.6

36

3.52.22.53.8630

7.6 - 10.66.1 - 8.63.7 - 5.2

26756

8.3 - 11.46.7 - 9.34.1 - 5.8

26882

9.1 - 12.57.3 - 10.04.4 - 6.4

261008

9.6 - 13.57.8 - 10.74.8 - 6.8

271134

10.2 - 14.28.2 - 11.35.1 - 7.1

271260

10.9 - 14.98.6 - 12.05.4 - 7.5

281512

11.8 - 16.59.4 - 13.35.9 - 8.2

291638

12.3 - 17.210.0 - 13.96.2 - 8.5

29

43.03.55.0720

7.9 - 11.36.4 - 9.14.0 - 5.5

29864

8.9 - 12.27.1 - 9.84.4 - 6.2

291008

9.6 - 13.57.8 - 10.84.8 - 6.8

301152

10.4 - 14.48.3 - 11.55.2 - 7.2

311296

11.0 - 15.28.8 - 12.25.5 - 7.6

321440

11.5 - 16.09.2 - 12.85.7 - 8.0

321728

12.6 - 17.510.0 - 14.06.3 - 8.6

331872

13.3 - 18.210.5 - 14.56.5 - 9.0

33

54.65.27.8900

9.2 - 12.57.4 - 10.14.6 - 6.5

361080

9.9 - 14.08.1 - 11.25.0 - 6.9

371260

10.8 - 14.88.5 - 12.05.4 - 7.5

381440

11.5 - 196.09.2 - 12.85.9 - 8.0

391620

12.2 - 17.09.8 - 13.66.2 - 8.2

391800

12.8 - 17.910.3 - 14.46.5 - 8.7

402160

14.1 - 19.511.3 - 15.66.9 - 9.8

402640

14.8 - 20.511.8 - 16.07.2 - 10.2

40

2.51.21.42.1450

5.8 - 8.84.6 - 7.03.0 - 4.6

-540

6.3 - 9.64.9 - 7.83.2 - 4.9

-630

6.9 - 10.75.5 - 8.63.5 - 5.2

-720

7.3 - 11.35.7 - 9.23.8 - 5.5

-810

7.8 - 12.06.1 - 9.64.0 - 5.9

-900

8.3 - 2.76.5 - 10.14.3 - 6.4

-1080

9.0 - 13.97.0 - 11.24.5 - 6.9

-1170

9.3 - 14.57.5 - 11.84.8 - 7.2

-

20.80.91.3360

4.5 - 7.93.7 - 6.42.5 - 3.0

-432

4.9 - 8.64.1 - 6.82.6 - 4.2

-504

5.4 - 9.64.5 - 7.62.8 - 4.7

-576

5.9 - 10.14.7 - 8.03.0 - 5.0

-648

6.2 - 10.75.0 - 8.63.2 - 5.3

-720

6.6 - 11.35.2 - 9.13.4 - 5.6

-964

7.1 - 12.55.6 - 10.03.6 - 6.3

-936

7.5 - 12.96.0 - 10.53.9 - 6.7

-

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚


GV & GH page 4 of 6

SUPPLY AIR GRILLES




Neck SizeArea m2

0.15

0.16

0.18

0.2

0.225

0.25

0.27

0.3

Neck Sizemm

600 x 300700 x 250750 x 250900 x 200

500 x 300600 x 250700 x 200750 x 2001000 x 150

550 x 300650 x 250800 x 200850 x 200

650 x 300700 x 300800 x 2501000 x 200

750 x 300800 x 300850 x 300900 x 250

1000 x 300

900 x 300

850 x 3001000 x 250

Neck Vel. M/S

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

TotalPress

(mmAq)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

31.71.92.8

162011.8 - 16.99.4 - 13.66.1 - 8.4

241728

12.4 - 17.59.7 - 14.06.4 - 8.6

241944

12.8 - 18.510.2 - 14.76.5 - 9.3

252160

13.6 - 19.610.8 - 15.56.8 - 9.8

252430

14.5 - 20.711.4 - 16.47.2 - 10.3

262700

15.0 - 21.611.8 - 17.27.4 - 10.7

272915

15.6 - 22.712.4 - 18.07.7 - 11.3

273240

16.3 - 24.113.0 - 19.28.0 - 12.0

28

4.53.84.26.4

243014.8 - 20.511.9 - 16.57.4 - 10.5

372592

15.4 - 21.412.3 - 17.07.7 - 10.7

372916

16.4 - 23.013.0 - 18.58.2 - 11.5

383240

17.1 - 24.013.7 - 19.38.5 - 11.9

383645

18.1 - 25.514.7 - 20.39.0 - 12.9

394050

19.0 - 26.715.3 - 21.39.5 - 13.5

394374

19.8 - 27.815.9 - 22.29.9 - 13.9

394860

20.9 - 29.316.8 - 23.410.5 - 14.6

40

3.52.22.53.8

189013.0 - 18.310.2 - 14.66.7 - 9.1

292016

13.6 - 19.010.6 - 15.16.8 - 9.4

302268

14.3 - 19.911.3 - 15.87.3 - 9.9

302520

14.9 - 21.012.0 - 16.77.5 - 10.5

302835

15.0 - 22.312.7 - 17.87.9 - 11.0

313150

17.0 - 23.513.5 - 18.78.4 - 11.6

323402

17.5 - 24.514.0 - 19.58.7 - 12.2

323780

18.5 - 26.014.9 - 20.79.3 - 12.9

32

43.03.55.0

216014.0 - 19.511.2 - 15.56.9 - 9.7

332304

14.6 - 20.211.6 - 16.17.3 - 10.1

342592

15.4 - 21.312.3 - 16.97.6 - 10.7

352880

16.2 - 22.613.0 - 18.08.0 - 11.3

353240

17.1 - 24.013.8 - 19.28.4 - 11.9

363600

17.9 - 25.214.4 - 20.18.8 - 12.6

363888

18.7 - 26.315.0 - 21.09.3 - 13.0

364320

19.6 - 27.715.8 - 22.29.9 - 13.8

37

54.65.27.8

270015.5 - 21.812.4 - 17.67.8 - 10.8

402880

16.2 - 22.713.0 - 18.18.2 - 11.2

403240

17.1 - 24.013.7 - 19.38.5 - 11.9

413600

18.0 - 25.214.3 - 20.18.9 - 12.7

414050

19.1 - 26.815.6 - 21.29.5 - 13.5

414500

20.1 - 28.216.1 - 22.410.0 - 14.2

424860

21.0 - 29.216.8 - 23.310.5 - 14.6

425400

22.2 - 31.017.8 - 24.611.0 - 15.4

43

2.51.21.42.1

13509.7 - 15.57.8 - 12.44.9 - 7.5

-1440

10.2 - 16.08.2 - 12.81.2 - 2.4

-1620

10.9 - 16.88.7 - 13.55.4 - 8.3

211800

11.4 - 17.99.1 - 14.35.7 - 8.7

212025

12.0 - 19.09.6 - 15.26.0 - 9.4

222250

12.6 - 16.710.0 - 15.96.2 - 9.7

222430

13.1 - 20.710.5 - 16.56.5 - 10.2

222700

13.7 - 21.611.0 - 17.36.7 - 10.7

23

20.80.91.3

10808.0 - 14.06.5 - 11.34.0 - 7.0

-1152

8.3 - 14.56.6 - 11.54.1 - 7.2

-1296

8.7 - 15.27.0 - 12.24.3 - 7.5

-1440

9.2 - 16.07.5 - 12.84.5 - 7.9

-1620

9.8 - 16.87.9 - 13.54.8 - 8.2

-1800

10.2 - 17.88.2 - 14.35.0 - 8.7

-1944

10.5 - 18.58.5 - 14.75.3 - 9.2

-2160

11.0 - 19.58.9 - 15.55.5 - 9.7

-

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚


GV & GH page 5 of 6

SUPPLY AIR GRILLES




Neck SizeArea m2

0.4

0.42

0.45

0.48

0.6

0.72

0.84

0.96

1.2

Neck Sizemm

900 x 450

1200 x 350

900 x 500

1200 x 400

1200 x 500

1200 x 600

1200 x 700

1200 x 800

1200 x 1000

Vel. M/S

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

TotalPress

(mmAq)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

31.71.92.8

437417.1 - 25.213.6 - 20.18.4 - 12.6

284536

17.4 - 25.713.9 - 20.58.5 - 12.8

284860

18.0 - 26.614.3 - 21.28.8 - 13.2

295184

18.5 - 27.414.8 - 21.89.1 - 13.7

306480

20.6 - 30.516.4 - 24.310.1 - 15.2

307776

22.5 - 33.217.9 - 26.511.0 - 16.5

319072

24.5 - 35.819.8 - 28.712.6 - 18.3

3210368

26.0 - 38.021.0 - 30.513.3 - 19.4

3212960

28.8 - 42.123.2 - 33.714.6 - 21.5

33

4.53.84.26.4

656121.9 - 30.817.6 - 24.611.0 - 15.3

416804

22.3 - 31.317.9 - 25.011.2 - 15.6

427290

23.1 - 32.318.5 - 25.811.6 - 16.1

427776

23.8 - 33.319.1 - 26.611.9 - 16.6

429720

26.4 - 37.021.2 - 29.613.3 - 18.5

431164

28.8 - 40.423.2 - 32.314.5 - 20.1

4413608

31.2 - 43.325.3 - 34.816.2 - 22.1

4515552

33.1 - 46.026.8 - 37.017.1 - 23.4

4519440

36.6 - 50.929.6 - 40.918.9 - 25.9

46

3.52.22.53.8

510319.4 - 27.215.6 - 21.79.7 - 13.5

335292

19.8 - 27.815.9 - 22.19.9 - 13.8

345670

20.4 - 28.716.4 - 22.810.3 - 14.2

346048

21.0 - 29.617.0 - 23.610.6 - 14.7

357560

23.4 - 32.918.8 - 26.211.8 - 16.3

359072

25.5 - 35.820.5 - 28.512.8 - 17.8

3610584

27.7 - 38.522.5 - 30.914.4 - 19.6

3612096

29.4 - 41.023.9 - 32.815.3 - 20.8

3715120

32.5 - 45.326.4 - 36.316.9 - 23.0

38

43.03.55.0

583220.5 - 29.016.5 - 23.210.4 - 14.4

386048

20.9 - 29.616.9 - 23.710.6 - 14.7

386480

21.6 - 30.617.4 - 24.510.9 - 15.2

386912

22.3 - 31.510.8 - 25.311.3 - 15.7

398640

24.8 - 35.020.0 - 28.112.5 - 17.4

4010368

27.0 - 38.221.8 - 30.613.6 - 19.0

4112096

29.3 - 41.023.8 - 33.115.3 - 20.9

4213824

31.1 - 43.625.3 - 35.116.2 - 22.2

4217280

34.4 - 48.227.9 - 38.817.9 - 24.5

43

54.65.27.8

729023.2 - 32.418.6 - 25.711.5 - 16.1

457560

23.7 - 33.119.0 - 26.311.8 - 16.5

458100

24.5 - 34.219.6 - 27.112.1 - 17.0

458640

25.3 - 35.320.3 - 28.012.5 - 17.5

4710800

28.1 - 39.222.5 - 31.113.9 - 19.5

4812960

30.6 - 42.724.5 - 33.915.2 - 21.2

4915120

33.1 - 45.826.7 - 36.516.9 - 23.2

4917280

35.1 - 48.628.4 - 38.817.9 - 24.7

5021600

38.8 - 53.831.3 - 42.919.8 - 27.3

51

2.51.21.42.1

364514.3 - 22.611.5 - 18.17.0 - 11.2

243780

14.6 - 23.111.8 - 18.57.2 - 11.4

244050

15.1 - 23.812.1 - 19.17.4 - 11.8

244320

15.6 - 24.612.5 - 19.77.6 - 12.2

255400

17.3 - 27.313.9 - 21.98.5 - 13.5

266480

18.9 - 29.815.2 - 23.89.2 - 14.7

267560

20.8 - 32.216.9 - 26.010.7 - 16.5

278640

22.1 - 34.217.9 - 27.611.3 - 17.4

2810800

24.4 - 37.819.8 - 30.512.4 - 19.2

29

20.80.91.3

291611.5 - 20.49.3 - 16.25.8 - 10.1

-3024

11.8 - 20.89.5 - 16.65.9 - 10.4

203240

12.1 - 21.59.8 - 17.16.1 - 10.7

203456

12.5 - 22.210.1 - 17.66.3 - 11.0

214320

13.9 - 24.711.3 - 19.67.0 - 12.3

225184

15.2 - 26.912.3 - 21.47.6 - 13.4

26048

16.9 - 29.213.9 - 23.48.9 - 15.0

226912

17.9 - 31.014.7 - 24.89.5 - 15.9

238640

19.8 - 34.216.2 - 27.410.4 - 17.5

24

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚

0˚22˚45˚


GV & GH page 6 of 6

SUPPLY AIR GRILLES

GA Supply Air Linear Bar Grille

n

n

n

n

n


Materials• GA-A Extruded aluminium A6063.

Surface Finish• Baked white powder coat as standard or natural anodized.

Features• Model GA is made up of two sets of air foil blades.The horizontal set is in front & the vertical set is behind.• The horizontal set of air blades is fixed & the vertical set is adjustable.• The grille will come in more sections for blade length that is more than 600mm.• On-standard sizes are available.• Approtimately 60% free area when blades are fully open.

Accessories• G1 Opposed blade damper.• G2 Volume extractor.

GA Construction Illustrations

n GA Physical Dimension Unit:mm

Thickness Standard SizeW x H

400 x 150450 x 150500 x 150500 x 250

DFace Size

W+48H+48


GA - A + G1 - 400 x 150

ModelMaterials

Accessories

W H

Materials


Model

GA-A 1.04.53.8

BWall Size

W+15H+15

ADuct Size

W+10H+10

GA page 1 of 4

SUPPLY AIR GRILLES


n

n

n


Materials • G1-T SPGC galvanized steel.

Surface Finish• G1-T Matt black as standard.• The G1 opposed blade damper is gear operated & can be set at fully open, half open & fully close.• G1 maximum dimension is 500mm x 500mm. Damper size bigger than this will come in sections.

GH & GH+G1 Physical Dimension Unit:mm

• G2 volume extractor helps in balancing by guiding a regulated amount of air for supply air grilles from the main duct & enable even air distribution over the entire surface of grille.• Maximum angle for G2 is 35˚ - 40˚.• Materials for G2 is 1.0mm SPGC galvanized steel & surface finish is baked black & surface finish is baked black.

Model

GA

GA + G1

Depth

52

1271A

Neck Size

W x H

W x H



D Face SizeW+48H+48W+48H+48

• Uneven air distribution • Even air distribution with G2

GA+G1 Opposed Blade Damper

GA+G2 Volume Extractor

GA page 2 of 4

SUPPLY AIR GRILLES



n GA Performance Data (1)Neck Area

m2

0.045

0.06

0.075

0.09

0.1

0.12

0.135

0.15

0.165

Neck Sizemm

450 x 100300 x 150

400 x 150300 x 200

500 x 150300 x 250

300 x 300450 x 200

500 x 200400 x 250

400 x 300600 x 200

450 x 300550 x 250

500 x 300600 x 250

550 x 300650 x 250

Neck Vel. M/STot. Press (mmAq)

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

31.8486

3.6 - 5.06.5 - 8.8

21648

4.1 - 6.17.5 - 10.6

21810

4.9 - 7.18.4 - 12.0

22972

5.5 - 7.89.2 - 12.7

221080

6.2 - 8.610.0 - 14.0

231296

6.5 - 9.510.9 - 15.1

241458

6.7 - 10.211.3 - 16.0

241620

7.3 - 10.911.7 - 17.0

251782

7.7 - 11.412.4 - 17.6

25

4.54.0729

4.6 - 6.68.1 - 11.2

32972

5.7 - 8.09.5 - 13.0

321215

6.3 - 8.910.3 - 14.4

331459

7.1 - 10.311.5 - 16.0

351620

8.1 - 11.112.3 - 16.9

361944

8.8 - 12.213.5 - 18.6

362187

9.3 - 13.014.2 - 19.7

362430

9.8 - 13.814.6 - 20.7

372673

10.4 - 14.615.1 - 21.5

37

3.52.3567

3.9 - 5.67.0 - 9.4

25756

4.7 - 6.78.4 - 11.3

26945

5.5 - 7.79.2 - 12.6

261134

6.1 - 8.410.0 - 13.8

271260

6.9 - 9.410.8 - 14.9

281512

7.4 - 10.411.7 - 16.5

291700

7.7 - 11.212.5 - 17.4

301890

8.3 - 11.613.0 - 18.2

302079

8.7 - 12.413.5 - 19.0

31

43.0648

4.2 - 6.17.3 - 10.6

27864

5.3 - 7.49.0 - 12.4

291080

5.8 - 8.39.7 - 13.6

311296

6.5 - 9.510.6 - 15.0

311440

7.6 - 10.211.8 - 15.8

311728

8.1 - 11.312.6 - 17.6

331944

8.6 - 12.213.4 - 18.5

342160

9.1 - 12.813.8 - 19.3

342376

9.7 - 13.514.6 - 20.4

35

54.8810

5.0 - 7.18.3 - 11.8

371080

6.1 - 8.310.0 - 13.6

371350

6.9 - 9.510.9 - 15.2

381620

7.6 - 11.012.0 - 16.9

381800

8.8 - 12.013.0 - 18.0

392160

9.3 - 12.914.0 - 19.5

392430

9.8 - 13.814.8 - 20.7

392700

10.5 - 14.815.3 - 21.6

392970

11.1 - 15.716.2 - 22.8

39

2.51.2405

2.9 - 4.55.2 - 8.3

-540

3.4 - 5.26.3 - 9.5

-675

3.9 - 6.37.1 - 11.2

-810

4.6 - 7.07.6 - 11.9

-900

5.1 - 7.68.2 - 12.5

-1080

5.3 - 8.49.0 - 13.8

-1215

5.6 - 8.99.4 - 14.7

-1350

6.1 - 9.59.5 - 15.4

-1485

6.4 - 10.110.2 - 16.1

21

20.9324

2.3 - 4.14.3 - 7.5

-432

2.5 - 4.64.6 - 8.5

-540

2.8 - 5.35.3 - 9.8

-648

3.5 - 6.26.1 - 10.5

-720

4.0 - 6.86.8 - 11.4

-864

4.3 - 7.47.2 - 12.4

-972

4.5 - 7.97.5 - 13.2

-1080

4.8 - 8.67.7 - 13.8

-1188

5.1 - 9.15.2 - 14.6

-

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)


GA page 3 of 4

SUPPLY AIR GRILLES



n GA Performance Data (2)Neck Area

m2

0.18

0.195

0.21

0.225

0.24

0.255

0.27

0.3

0.32

Neck Sizemm

600 x 300700 x 250

650 x 300550 x 350

700 x 3001000 x 200

750 x 300900 x 250

850 x 300

850 x 300

900 x 300

1000 x 300

800 x 400

Vel. M/STot. Press (mmAq)

CMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NCCMH

NC

31.8

19447.9 - 12.112.7 - 18.3

252105

8.7 - 12.613.2 - 19.0

255568

9.3 - 13.114.0 - 19.7

262430

9.6 - 13.814.5 - 20.5

262592

10.2 - 14.314.8 - 21.1

262754

10.4 - 15.015.2 - 21.9

272915

10.7 - 15.715.6 - 22.6

273240

11.3 - 16.916.4 - 24.0

283456

11.5 - 17.516.7 - 24.7

28

4.54.0

291511.0 - 15.616.2 - 22.5

383160

11.7 - 16.416.8 - 23.5

383402

12.3 - 17.217.5 - 24.5

383645

13.3 - 18.218.0 - 25.6

393888

13.6 - 19.218.6 - 26.3

394130

14.3 - 20.019.3 - 27.0

394374

14.7 - 20.619.6 - 27.9

394860

15.5 - 21.721.0 - 29.5

405184

15.8 - 22.121.7 - 30.5

40

3.52.3

22689.0 - 13.214.2 - 19.8

312457

9.7 - 13.914.7 - 20.7

312646

10.3 - 14.515.3 - 21.5

312835

11.0 - 15.516.0 - 22.4

313024

11.4 - 16.016.6 - 23.1

323213

11.6 - 16.617.3 - 23.8

323402

21.1 - 17.417.5 - 24.5

323780

13.0 - 18.418.6 - 26.0

324032

13.3 - 19.418.9 - 26.9

32

43.0

259210.2 - 14.315.2 - 21.3

352808

10.8 - 15.115.8 - 22.1

353024

11.3 - 15.916.6 - 23.3

353240

12.2 - 16.917.2 - 24.0

363456

12.5 - 17.717.6 - 24.7

363672

12.9 - 18.218.2 - 25.5

363888

13.3 - 19.118.7 - 26.5

364320

14.2 - 20.219.9 - 27.2

374608

14.4 - 21.420.2 - 28.7

37

54.8

324012.0 - 16.916.9 - 23.8

403510

12.6 - 17.617.7 - 24.9

403780

13.3 - 18.518.7 - 26.0

414050

14.2 - 19.819.3 - 26.9

414320

14.7 - 20.419.9 - 27.7

414590

15.1 - 21.120.5 - 28.5

414860

15.5 - 21.721.0 - 29.3

425400

16.6 - 23.022.5 - 31.1

435760

17.0 - 23.723.0 - 32.0

43

2.51.2

16206.5 - 10.810.7 - 16.9

211755

7.3 - 11.411.2 - 17.2

211890

7.8 - 11.811.6 - 18.1

212025

8.3 - 12.512.1 - 18.6

222160

8.5 - 13.012.5 - 19.5

222295

8.6 - 13.412.9 - 20.0

222430

8.9 - 14.013.0 - 20.6

222700

9.3 - 14.813.6 - 21.7

232880

9.5 - 15.214.1 - 22.2

23

20.9

12965.3 - 9.58.5 - 15.2

-1405

5.8 - 10.19.1 - 15.8

-1512

6.1 - 10.69.6 - 16.5

-1620

6.5 - 11.110.0 - 17.1

-1728

6.7 - 11.410.2 - 17.5

-1836

6.9 - 11.810.4 - 18.0

-1944

7.0 - 12.310.5 - 18.4

-2160

7.3 - 12.911.0 - 19.5

-2304

7.5 - 13.211.4 - 19.9

-

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)


GA page 4 of 4

SUPPLY AIR GRILLES

RA/RAC Bar Grille

Linear Bar Grille (RA)

Curve Type Linear Bar Grille (RAC)

n

n

n


Materials• RA-A Extruded aluminium A6063.

Features• The bar grille air blades are fixed & not adjustable. Maximum single length is 2700m. Above this length, the grille will come in multiple section.• The neck sizes (w) are proportional to the number of linear bar blades. Please refer to the following table.• Two different types of linear bar face deflection angle are available.• The bar grilles that come with plenum boxes are known as RAB.• Approximately 65% free area.

Surface Finish• Baked white powder coat or natural anodized as standard.

• The curved structure and aesthetic appearance of RAC make it perfect to be installed at the round column or curved wall.

n RA Construction Illustrations

RA/RAC page 1 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille

n


RAC Construction Illustrations

D

GA Physcal Dimension Unit:mm

n RA/RAC Physical Dimension Unit:mm

Thickness L x WNeck Size

L: To suit design Length

W: Tosuit No. of Blade

DFace Size

L+29W+29


RA - A + 100 x 3 - 1

ModelMaterials

Accessories

W H

Materials


Model

RA-A

RAC

No.of BladeNeck Width

1.0 4.5

BWall Size

L+15W+15

ADuct Size

L+10W+10

n Bar Grille Vs Width Unit:mm

245

360

475

590

6105

7120

8135

10165

12195

14225

16255

18285

20315

n

n

RA-A Linear Bar Grille• 90˚ mitred corner sections for linear bar grilles are available.• Joining strips are available for continuous installation of the mitred corner section & the linear bar grille.

RA-A Linear Bar Grille• Maximum length of a single linear bar grille is 2700mm. Above 2700mm, the grille will come in multiple section.• Joining strips are available for multiple section of linear bar grille.

RA/RAC page 2 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille


n RA-A Linear Bar Grille

RA-A Bar Deflection Angle• Two different linear bar face deflection angles are available.• Deflection for RA/RAC -1:0˚ RA/RAC -2:15˚

n

RA/RAC page 3 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille


Model RAB : RA Linear Bar Grille c/w Plenum Box.• Plenum box is constructed of 0.5mm SPGC galvanized steel.• Two types of insulation are available.• External insulation: 25mm X 24kg/m2 fiberglass wrapped with fiber-reinforced aluminium foil.(Optional)• Internal insulation: 5mm thick PE foam.

n

n RA/RAC Physcal Dimension Unit:mm

L - Length of Plenum Box

Face length of linear diffuser

W Width of Plenum Box

Neck width of linear diffuser W + 20

H Height of Plenum Box

230 100ø~300ø oval shape

S Inlet Size

RA/RAC page 4 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille


n RA/RAC -1 (0˚) - Supply Performance DataNeck Width

(mm)

45

60

75

90

105

120

135

165

195

225

255

285

315

Neck Vel.(m/s)Tot. Press (mmAq)

CMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NC

3.53.0567

4.2 - 4.85.7 - 7.8

35756

5.1 - 5.46.6 - 8.6

34945

6.1 - 6.67.6 - 9.4

341134

6.9 - 7.28.4 - 10.2

351323

7.2 - 7.38.9 - 10.7

351512

7.4 - 7.49.4 - 11.2

351701

7.5 - 7.59.9 - 11.7

362079

8.2 - 8.210.5 - 12.3

362457

8.5 - 8.511.1 - 12.9

372835

8.8 - 8.811.8 - 13.6

373213

9.0 - 9.012.5 - 14.2

383591

9.2 - 9.213.3 - 15.0

383969

9.5 - 9.514.1 - 15.7

39

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

3.02.2486

3.3 - 3.65.1 - 6.9

31648

4.4 - 4.75.6 - 7.4

30810

5.3 - 5.66.6 - 8.2

30972

6.0 - 6.37.5 - 9.0

311134

6.5 - 6.88.0 - 9.5

311296

6.8 - 6.88.3 - 9.8

311458

6.9 - 6.98.7 - 10.2

321782

7.5 - 7.79.3 - 10.8

322106

7.8 - 7.99.8 - 11.2

332430

8.0 - 8.010.3 - 11.7

332754

8.2 - 8.210.8 - 12.1

343078

8.3 - 8.311.3 - 12.6

343402

8.5 - 8.511.9 - 13.1

35

2.51.6405

2.7 - 3.04.2 - 6.0

26540

3.5 - 3.84.9 - 6.5

25675

4.3 - 4.65.6 - 7.4

25810

4.8 - 5.16.0 - 7.5

26945

5.2 - 5.26.5 - 8.0

261080

5.5 - 5.56.8 - 8.3

261215

5.5 - 5.57.2 - 8.7

271485

6.1 - 6.18.0 - 9.3

271755

6.3 - 6.38.6 - 9.8

282025

6.6 - 6.69.2 - 10.3

282295

6.9 - 6.99.8 - 10.8

292565

7.2 - 7.210.5 - 11.3

292835

7.5 - 7.511.2 - 11.9

30

2.00.9324

2.1 - 2.13.3 - 4.8

21432

2.8 - 2.94.0 - 5.3

20540

3.4 - 3.54.6 - 5.9

20648

3.9 - 3.95.1 - 6.3

21756

4.2 - 4.25.5 - 6.8

21864

4.4 - 4.45.9 - 7.1

21972

4.5 - 4.56.0 - 7.2

221188

4.8 - 4.86.6 - 7.8

221404

5.0 - 5.07.0 - 8.1

231620

5.2 - 5.27.4 - 8.4

231836

5.4 - 5.47.9 - 8.8

242052

5.6 - 5.68.3 - 9.1

242268

5.9 - 5.98.8 - 9.5

25

1.50.6243

1.2 - 1.22.4 - 3.6

-324

1.7 - 1.72.8 - 4.0

-405

2.3 - 2.33.4 - 4.6

-486

2.7 - 2.73.9 - 5.1

-567

3.0 - 3.04.2 - 5.4

-648

3.0 - 3.04.4 - 5.6

-729

3.0 - 3.04.8 - 6.0

-891

3.3 - 3.35.4 - 6.6

-1053

3.5 - 3.55.9 - 7.1

-1215

3.8 - 3.86.4 - 7.6

-1377

4.0 - 4.07.0 - 8.1

-1539

4.2 - 4.27.6 - 8.7

-1701

4.5 - 4.58.3 - 9.3

20

1.00.4162

0.3 - 0.31.5 - 2.1

-216

0.4 - 0.41.9 - 2.6

-270

0.8 - 0.82.1 - 3.0

-324

0.9 - 0.92.4 - 3.3

-378

1.1 - 1.12.8 - 3.7

-432

1.3 - 1.33.2 - 4.1

-486

1.5 - 1.53.6 - 4.5

-594

1.8 - 1.84.2 - 5.1

-702

2.0 - 2.04.8 - 5.8

-810

2.3 - 2.35.5 - 6.5

-918

2.6 - 2.66.2 - 7.4

-1026

2.8 - 2.87.1 - -8.3

-1134

3.1 - 3.18.3 - 9.4

-• Above performance data is also applicable for RAC with one meter curve lenght.• Throw values are based on an entire section one meter long.• Throw is based on terminal velocities of 0.5 m/s - 0.25 m/s respectively.• NC value is based on a room absorption of 10 dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 20.

• For return air application, Negative SP=0.75 x Tot. Press. NC=above plus 5.• Corrected values for throw and NC value as the length changes.

Length (M)NC

Terminal Vel. 0.5m/sTerminal Vel. 0.25m/s

0.5-20.80.9

01011

1.5+21.11.15

2+31.21.2

Eg: When length is 2m,Throw: use a multiple of 1.2 NC: NC plus 3

RA/RAC page 5 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille


n RA/RAC -2 (15˚) - Supply Performance DataNeck Width

(mm)

45

60

75

90

105

120

135

165

195

225

255

285

315

Neck Vel. (m/s)Tot. Press (mmAq)

CMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NCCMH/M

NC

3.53.0567

4.2 - 4.85.4 - 7.5

40756

5.2 - 5.76.7 - 8.5

39945

6.1 - 6.47.5 - 9.3

391134

6.6 - 6.98.1 - 9.9

401323

7.1 - 7.28.6 - 10.5

401512

7.4 - 7.48.8 - 10.7

401701

7.5 - 7.59.0 - 10.8

412079

8.1 - 8.19.6 - 11.4

412457

8.5 - 8.510.0 - 11.7

422835

8.8 - 8.810.4 - 12.1

423213

9.0 - 9.010.8 - 12.5

433591

9.2- 9.211.2 - 12.8

433969

9.5 - 9.511.7 - 13.2

44

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

CeilingWall

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

Throw(m)

3.02.2486

3.3 - 3.65.1 - 6.9

36648

4.5 - 4.85.9 - 7.7

35810

5.2 - 5.56.4 - 8.1

35972

5.7 - 6.07.2 - 8.7

361134

6.2 - 6.57.5 - 9.2

361296

6.6 - 6.77.7 - 9.5

361458

6.9 - 6.98.1 - 9.6

371782

7.5 - 7.78.5 - 10.1

372106

7.8 - 7.98.8 - 10.4

382430

8.0 - 8.09.2 - 9.9

382754

8.2 - 8.29.6 - 11.0

393078

8.3 - 8.39.9 - 11.4

393402

8.5 - 8.510.3 - 11.7

40

2.51.6405

2.7 - 3.04.2 - 6.0

31540

3.4 - 3.75.0 - 6.5

30675

4.0 - 4.35.3 - 6.9

30810

4.8 - 4.85.7 - 7.2

31945

5.0 - 5.16.2 - 7.7

311080

5.3 - 5.36.6 - 8.1

311215

5.4 - 5.47.2 - 8.4

321485

6.0 - 6.07.9 - 9.0

321755

6.3 - 6.38.5 - 9.5

332025

6.6 - 6.69.2 - 9.9

332295

6.9 - 6.910.0 - 10.4

342565

7.2 - 7.210.7 - 10.9

342835

7.5 - 7.511.6 - 11.5

35

2.00.9324

2.1 - 2.13.3 - 4.8

26432

2.6 - 2.83.7 - 5.2

25540

3.4 - 3.44.4 - 5.8

25648

3.9 - 3.95.1 - 6.3

26756

4.2 - 4.25.5 - 6.8

26864

4.3 - 4.35.8 - 7.1

26972

4.5 - 4.56.0 - 7.2

271188

4.8 - 4.86.6 - 7.8

271404

5.0 - 5.07.0 - 8.2

281620

5.2 - 5.27.4 - 8.6

281836

5.4 - 5.47.9 - 9.0

292052

5.6 - 5.68.3 - 9.5

292268

5.9 - 5.98.8 - 10.0

30

1.50.6243

1.2 - 1.22.4 - 3.6

-324

1.6 - 1.62.8 - 4.0

-405

2.0 - 2.03.2 - 4.4

-486

2.4 - 2.73.6 - 4.8

-567

2.6 - 2.74.0 - 5.2

-648

2.8 - 2.84.4 - 5.6

-729

3.0 - 3.04.8 - 6.0

20891

3.3 - 3.35.4 - 6.6

201053

3.5 - 3.56.0 - 7.1

221215

3.8 - 3.86.7 - 7.7

221377

4.0 - 4.07.4 - 8.3

231539

4.2 - 4.28.2 - 9.0

231701

4.5 - 4.59.1 - 9.7

25

1.00.4162

0.3 - 0.31.5 - 2.1

-216

0.4 - 0.41.8 - 2.5

-270

0.6 - 0.62.0 - 2.9

-324

0.9 - 0.92.4 - 3.3

-378

1.1 - 1.12.8 - 3.7

-432

1.3 - 1.33.2 - 4.0

-486

1.5 - 1.53.3 - 4.2

-594

1.8 - 1.83.6 - 4.5

-702

2.0 - 2.03.9 - 4.8

-810

2.3 - 2.34.3 - 5.2

-918

2.6 - 2.64.7 - 5.5

-1026

2.8 - 2.85.1 - 5.9

-1134

3.1 - 3.15.5 - 6.3

-• Above performance data is also applicable for RAC with one meter curve lenght.• Throw values are based on an entire section one meter long.• Throw is based on terminal velocities of 0.5 m/s - 0.25 m/s respectively.• NC value is based on a room absorption of 10 dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 20.

• For return air application, Negative SP=0.75 x Tot. Press. NC=above plus 5.• Corrected values for throw and NC value as the length changes.

NCTerminal Vel. 0.5m/sTerminal Vel. 0.25m/s

-20.80.9

011

+21.11.15

+31.21.2

Eg: When length is 2m,Throw: use a multiple of 1.2 NC: NC plus 3

RA/RAC page 6 of 7

SUPPLY AIR GRILLES

RA/RAC Bar Grille


n RA/RAC - Return Performance Data

• Above performance data is also applicable for RAC with one meter curve lenght.• Throw values are based on an entire section one meter long.• Throw is based on terminal velocities of 0.5 m/s - 0.25 m/s respectively.• NC value is based on a room absorption of 10 dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 20.• Corrected values for throw and NC value as the length changes.

Length (M)NC Correction

0.5-2

10

1.5+2

2+3

RA/RAC page 7 of 7

Neck Width(mm)

45

60

75

90

105

120

135

165

195

225

255

285

315

Neck Vel. (m/s)Vel. Press (mmAq)Neg. SP. (mmAq)

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

CMH/MNC

3.53.02.3567387563794537

113438

132338

151238

170139

207939

245740

283540

321341

359141

396942

3.02.21.748634648338103397234

113434

129634

145835

178235

210636

243036

275437

307837

340238

2.51.551.24052954028675288102994529

108029

121530

148530

175531

202531

229532

256532

283533

2.01.00.732424432235402364824756248642497225

118825

140426

162026

183627

205227

226828

1.50.550.5243

-324

-405

486-

567-

648-

729-

891-

105321

121521

137722

153922

170122

1.00.250.3162

-216

-270

-324

-378

-432

-486

-594

-702

-810

-918

-1026

-1134

-

SUPPLY AIR GRILLES ACCESSORIES


SUPPLY AIR GRILLES ACCESSORIES page 1 of 2

Materials• G1-T Frame 0.6mm SPGC galvanized steel. Blade 0.5mm SPGC galvanized steel.

Surface Finish• G1-T Matt black as standard.• Maximum dimension is 500mm x 500mm. Damper size bigger than this will come in sections.• Gear operated, can be set at fully open, half open & fully close.

G1- Opposed Blade Dampern

n

Materials• G2-T 1.0mm SPGC galvanized steel.• G2-S 0.5mm stainless steel SUS. 304.

Surface Finish• G2-T Matt black as standard.• G2-S Stainless steel original colour.• Maximum dimension is 800mm x 500mm.• Suitable for model GV & GH wall grille as guide vanes.• Maximum angle of opening 35˚ - 40˚.

G2 Volume Extractorn

n

SUPPLY AIR GRILLES ACCESSORIES

Recommended Noise Criteria for Rooms (3)


SUPPLY AIR GRILLES ACCESSORIES page 2 of 2

Type of AreaRange of NC

Criteria Curves

RESIDENCES Private homes (rural and suburban) 20-30 Private homes (urban ) 25-35 Apartment houses, 2-and 3-family units 30-40

HOTELS Individual rooms or suites 30-40 Ballrooms, banquet rooms 30-40 Halls and corridors, lobbies 35-45 Garages 40-50 Kitchens and laundries 40-50

HOSPITALS AND CLINICS Private rooms 25-35 Operating rooms, wards 30-40 Laboratories, halls and corridors Lobbies and waiting rooms 35-45 Washrooms and toilets 40-50

OFFICES Board room 20-30 Conference rooms 25-35 Executive office 30-40 Supervisor office, reception room 30-45 General open offices, drafting rooms 35-45 Halls and corridors 35-50 Tabulation and computation 40-60 40-50

AUDITORIUMS AND MUSIC HALLS Concert and opera halls 15-25 Studios for sound reproduction 25-30 Legitimate theaters, multi-purpose halls Movie theaters, TV audience studios Semi-outdoor amphitheaters 30-35 Lecture halls, planetarium Lobbies 35-45

Type of AreaRange of NC

Criteria Curves

CHURCHES AND SCHOOLS Sanctuaries 20-30 Libraries 30-40 Schools and classrooms 30-40 Laboratories 35-45 Recreation halls 35-50 Corridors and halls 35-50 Kitchens 40-50

PUBLIC BUILDINGS Public libraries, museums, court rooms 30-40 Post office, general banking areas, lobbies 35-45 Washrooms and toilets 40-50

RESTAURANTS, CAFETERIAS, LOUNGES Restaurants 35-45 Cocktail lounges 35-50 Night clubs 35-45 Cafeterias 40-50

STORES, RETAIL Clothing stores Department stores (upper floors) 35-45 Department stores (main floor) 40-50 Small retail stores Supermarkets 40-50

SPORTS ACTIVITIES, INDOOR Coliseums 30-40 Bowling alleys, gymnasiums 35-45 Swimming pools 35-45

TRANSPORTATION (RAIL, BUS, PLANE) Ticket sales offices 30-40 Lounges and waiting rooms 35-50

2 supply_air_grilles set catalogue.pdf

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