EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER...

21
EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers OPTIMA ceiling diffuser with perforated face, are recommended for heating, ventilating and cooling in centralized air conditioning systems. Perforated face diffusers, with 4-3-2 or 1 way pattern deflectors are adjustable for horizontal diffusion of air in their respective ways without change in air volume, pressure or sound level. 100% utilization of diffuser face area, regardless of pattern deflection, gives optimum performance in terms of air handling characteristics. These diffusers have high diffusion induction rates, resulting in rapid temperature and velocity equalization of the mixed air mass, well above the zone of occupancy. Features: Efficient, draftless air distribution for all types of ceilings. Air pattern controllers do not damper the air in any way. Flow rate and sound level remain constant regardless of air pattern required. Air pattern controllers can be replaced to any desired pattern. Perforated surface plate completely conceals pattern controllers. Always available in powder coated finish in any color to match with the false ceiling grid. For supply diffusers, perforated face is dropped slightly below the ceiling. Concealed fixing and easily removable perforated face, give easy access to air pattern deflectors and control damper. Suitable for installation into tiled ceilings. Spigot air inlets are available in a variety of sizes, suitable for flexible duct connections. Standard square sizes: N A B F w = = = = Nominal size = L x W Neck size Overall face size Frame width = 30/25/20mm widths available L W 300 400 500 600 300 400 500 600

Transcript of EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER...

Page 1: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

Perforated Ceiling Diffusers

OptimaAIR DIFFUSION PRODUCTS

PERFORATED DIFFUSERS

OPTIMA ceiling diffuser with perforated face, arerecommended for heating, ventilating and cooling incentralized air conditioning systems.

Perforated face diffusers, with 4-3-2 or 1 way patterndeflectors are adjustable for horizontal diffusion of airin their respective ways without change in air volume,pressure or sound level. 100% utilization of diffuserface area, regardless of pattern deflection, givesoptimum performance in terms of air handling characteristics.

These diffusers have high diffusion induction rates,resulting in rapid temperature and velocity equalization of the mixed air mass, well above the zone of occupancy.

Features:

Efficient, draftless air distribution for all types ofceilings.

Air pattern controllers do not damper the air in anyway. Flow rate and sound level remain constantregardless of air pattern required.

Air pattern controllers can be replaced to any desired pattern.

Perforated surface plate completely conceals pattern controllers.

Always available in powder coated finish in any color to match with the false ceiling grid.

For supply diffusers, perforated face is dropped slightly below the ceiling.

Concealed fixing and easily removable perforated face, give easy access to air pattern deflectors and controldamper.

Suitable for installation into tiled ceilings.

Spigot air inlets are available in a variety of sizes, suitable for flexible duct connections.

Standard square sizes:

N

A

B

Fw

=

=

=

=

Nominal size = L x W

Neck size

Overall face size

Frame width = 30/25/20mm widths available

L W

300

400

500

600

300

400

500

600

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OPTIMA model OPD-1 is asupply perforated ceiling diffuserhaving directional ceiling diffusercomplete pattern deflectors with4-3-2 or way horizontal air diffusion.

The spigot damper, provided atthe neck of the plenum of the diffuser, is optional.

1.2.3.4.5.6.7.

Perforated face plateAir patternRound neckSpigot damperPlenum boxAcoustic linerBorder frame

OPTIMA model OPD-2 is asupply perforated ceiling diffuserhaving a baffle plate which diffusesthe air vertically downwards for applications requiring localizedspot cooling or heating.

The spigot damper, provided atthe neck of the plenum of the diffuser is optional.

(4)

(3)

(2)

(6)

(5)

W

d

(7)(1)

B

AFw

h

W

d

B

AFw

h

Perforated Ceiling Diffusers

OptimaAIR DIFFUSION PRODUCTS

PERFORATED DIFFUSERS

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Standard sizes and dimensions for angular and straight box plenums

N A B h d h1

300 x 300

400 x 400

500 x 500

600 x 600

280

380

480

580

340

440

540

640

310

340

390

460

155

175

205

245

75

75

100

100

NOTE:

h height of the angular plenums /straight box plenumsh1 height of the return perforated diffuser plenums

Perforated Diffusers

Engineering and Performance Data

The tabulated performance data includes Area factor, Throw pattern, Discharge velocity and Sound power level.

Air volume q :v

Throw T :

3Air volumes are given in mt /h

The throw values given in the tables are related to the perforated diffuser placednearer to the ceiling.Two throw values are given for each qv to the corresponding terminal velocities V .tMinimum Throw 0.50 m/sec. Vt

Maximum Throw 0.5 m/sec. Vt

Discharge Velocity V :k

NC values :

Outlet size :

The effective discharge velocities given are related to the corresponding effectivefree area A .k

Noise data is given in terms of NC levels. These have been derived from sound-12power level data (dB re 10 watts) by subtracting 10 dB (Room effect) from the

sound power levels.

Outlet sizes are mentioned on the left side of each row within a tolerance of + 10%

Constructional Details and Dimensions

OptimaAIR DIFFUSION PRODUCTS

PERFORATED DIFFUSERS

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Selection table for Perforated Ceiling Diffusers

N. Sizemm V m/sk 1.5 2 2.5 3 3.5 4 5 6

300 x 3000.018

400 x 4000.034

500 x 5000.055

600 x 6000.080

3m /hThrow (m)N.C.

3m /hThrow (m)N.C.

3m /hThrow (m)N.C.

3m /hThrow (m)N.C.

950.4 - 0.6

< 20

1830.6 - 1< 20

3001.2 - 2< 20

4321.4 - 2.3

< 20

1300.6 - 1< 20

2461.15 - 1.9

20

3961.6 - 2.5

20

5751.9 - 3.2

20

1601.1 - 1.8

22

3061.5 - 2.4

25

4951.9 - 3.1

25

7202.4 - 3.9

25

1901.3 - 2.1

30

3651.8 - 2.9

30

5952.3 - 3.8

36

8652.8 - 4.8

35

2251.6 - 2.55

45

4302.2 - 3.5

40

6952.7 - 4.5

45

10003.5 - 5.4

40

2601.8 - 2.9

> 50

4902.4 - 4

50

7903.1 - 5

50

11503.8 - 6

50

33242.25 - 3.6

> 50

6123 - 4.8> 50

9903.9 - 6.4

> 50

14404.8 - 7.9

> 50

3882.7 - 4.3

> 50

7353.8 - 5.9

> 50

11804.7 - 7.5

> 50

17256 - 9> 50

Throw Data:Correction Table for other directionsof discharging cores

4 way 3 way 2 way 1 way

x 1 x 1.05 x 1.10 x 1.15

Induction and Temperature co-efficient

t = 0.8x to

Vx

Vo

Temp. co-efficient = tx

to

Induction I = Vx

Vo

V max.x 2.5 2 1.5 1 0.5 0.25

ot Cx 4.4 3.52 2.64 1.76 0.88 0.44

Engineering and Performance Data

OptimaAIR DIFFUSION PRODUCTS

PERFORATED DIFFUSERS

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EXHAUST GRILL AND AIR LOUVER

PERFORATED DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

En

gin

eeri

ng

an

d P

erfo

rman

ce D

ata

Eas

y se

lect

ion

gra

ph

s fo

r P

erfo

rate

d C

eilin

g D

iffu

sers

4 W

ay, 3

Way

, 2 W

ay a

nd

1 W

ay

(1)

(2)

(3)

1 W

ay2

Way

3 W

ay &

4 W

ayN

=

No

min

al s

ize

Tota

l Pre

ssur

e D

rop

P(P

a)t

105

100

5040

3020

10

5050

4030

20N

.C.

Vk

1.5

2.0

2.5

3.5 4 5 6

N.C.

(1)

(2)

(3)

1700

1500

1200

1000

900

800

700

600

500

40030

0

200

100

600

0.08

0

500

0.05

5

400

0.03

4

300

0.01

8

Air

vol

ume

3

V =

mt.

/hr.

5

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OptimaAIR DIFFUSION PRODUCTS

Supply, Return, Extract Ceiling Diffusers

Duct fixing and CoreRemoval:I n s e r t i o n o f d i f f u s e r c o r e i seffected by depressing core pinsprings in holes located at end ofborder frame and releasing corew h e n p i n s a r e a l i g n e d w i t h corresponding holes at opposite end offrame.

Procedure is reversed for removalof core.

Operation of OpposedBlade Damper:Blade arrangement distribution through diffuser throat. Provides positive control air volume from full open to full closed position,regardless of system pressure.The fu l l open to fu l l c losed position of damper to any degree canbe operated by a screw driverafter removing the internal core,which is shown in the figure.

ensures uniform

GENERAL NOTES:

The directional segments of each core style are noted as shown to identify with the tabulated performancedata.

Dimensions noted on each core style are the “increments” in mm of the available duct sizes (L x W).

For non-standard core style, or a standard core style with modified air volume requirements, see the detailedselection procedure and by simple inter and extra-polation of the given data will be obtained.

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CEILING DIFFUSERS

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Product Model Description

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

Supply Round DiffusersORD-1

Supply Round Diffusers are diffusers withbutterfly damper, can be used for supply air. They aresuitable for installation in ceilings. The circular designguarantees a uniform radial discharge in supply airapplication.

Diffuser with Damper

Diffuser without Damper

Return Round DiffusersORD-2Return Round Diffusers, are diffusers withoutdamper. They can be used for Extract air, Suitable forinstallation in ceiling.

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Page 8: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

Standard sizes

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

S.No.

NECK SIZE ‘A’ OUTER SIZE ‘B’ FLANGEWIDTH

‘C’mm

DIFFUSERHEIGHT

‘H’mmInch mm Inch mm

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

5.3

7.5

9.7

11.9

14.3

16.4

18.5

20.5

22.6

24.6

134

190

247

303

362

416

469

521

573

625

9.8

12.1

14.3

16.5

18.8

21.0

23.5

25.7

27.7

29.8

250

307

363

419

478

534

598

653

704

756

30

30

30

30

30

30

35

35

35

35

40

40

40

40

40

40

40

40

40

40

C

B

AH

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Page 9: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

Volume Control Damper is an adjustable device used to control the volume of air passing through an airoutlet or inlet and mounting in Diffuser neck. Adjustable through diffuser neck.

Minimum Maximum

5.3” (134 mm ) Dia. 24.6” (625 mm )

Butterfly Damper

A

D

Accessory

Volume Control Damper (Butterfly Type) :

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

Available Sizes :

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Page 10: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

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Performance Data

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

Neck

Dia.

mm

&

(Inch)

134

(5.3)0.018

Area

Factor

Neck Velocity

m/s

Velocity Pr.

Pa

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

1.52

1.74

28

7.5

0.6-1.8

<15

2.03 2.54 3.05 3.56 4.06 5.08 6.10

2.73 3.98 5.72 7.71 10.19 15.91 22.62

190

(7.5)

247

(9.7)

303

(11.9)

362

(14.3)

Neck

Area

2m

0.032

0.051

0.073

0.099

0.008

0.014

0.021

0.029

0.038

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

50

8.7

1.2-2.7

<15

78

9.2

1.5-3.4

<15

106

8.7

2.1-4.3

<15

151

9.4

2.4-4.9

<15

38

13.4

0.9-2.1

<15

47

20.9

0.9-2.4

15

57

30.3

0.2-3.0

20

64

38.0

1.5-3.3

24

73

50.2

1.8-8.3

28

92

79.6

1.8-8.7

34

111

115.5

2.1-4.0

40

66

15.7

1.5-3.0

15

83

24.4

1.8-3.4

21

99

34.8

1.8-4.0

26

116

47.7

2.1-4.3

31

132

62.2

2.4-4.6

35

165

97.0

2.7-7.9

41

198

139.2

2.7-5.2

46

104

16.2

1.8-4.0

19

130

26.8

2.1-4.3

25

153

35.0

2.1-4.6

30

179

47.9

2.4-4.9

35

205

63.1

2.7-5.2

39

257

98.7

3.0-5.5

45

309

142.2

3.4-6.1

49

149

17.2

2.4-4.9

20

186

26.6

2.7-5.2

27

222

38.0

3.0-5.5

32

260

52.0

3.4-5.8

37

297

68.4

3.7-6.1

40

370

105.7

4.3-6.4

47

444

151.6

4.6-6.7

50

203

17.2

2.7-5.5

21

252

26.8

3.0-5.8

28

302

38.0

3.4-6.1

33

354

52.2

3.7-6.1

38

403

68.1

4.0-6.4

41

505

106.9

4.6-6.7

48

606

154.1

4.9-7.3

53

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EXHAUST GRILL AND AIR LOUVER

Neck

Dia.

mm

&

(Inch)

416

(16.4)

469

(18.5)

521

(20.5)

573

(22.6)

625

(24.6)

Neck

Area

2m

0.130

0.164

0.203

0.245

0.292

Area

Factor

0.054

0.078

0.097

0.117

0.140

Neck Velocity

m/s

Velocity Pr.

Pa

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

Air flow rate

L/s

Total pr. Drop

Pa

Throw (m)

NC (dB)

1.52

1.74

198

7.0

2.7-5.5

<15

250

5.22

2.7-5.5

<15

311

5.72

2.7-5.5

16

2.03 2.54 3.05 3.56 4.06 5.08 6.10

2.73 3.98 5.72 7.71 10.19 15.91 22.62

264

12.7

3.0-6.1

21

330

19.6

3.4-6.4

28

396

28.3

3.7-6.4

33

462

38.8

4.0-6.7

38

529

50.7

4.3-7.3

41

661

79.1

4.9-7.6

48

793

114.4

5.5-7.9

53

335

9.70

3.0-6.1

22

418

14.67

3.4-6.7

28

500

21.38

3.7-7.0

33

585

29.09

4.3-7.3

38

668

37.79

4.6-7.6

41

835

59.66

5.2-8.2

48

1003

94.47

5.5-8.5

53

401

9.70

3.0-6.1

22

519

16.41

3.7-6.7

28

613

22.87

4.0-7.0

33

722

31.32

4.6-7.3

39

826

40.77

4.9-7.9

42

1015

62.15

5.2-8.2

48

1251

94.47

5.5-8.5

53

375

5.4

2.7-5.5

17

444

5.72

2.7-5.5

18

479

10.8

3.0-6.1

23

625

16.67

3.5-6.7

28

737

24.19

3.8-7.0

33

871

31.79

4.4-7.3

40

996

41.28

4.7-7.7

43

1227

62.37

5.2-8.2

48

1521

93.37

5.5-8.5

53

590

9.70

3.0-6.1

24

741

15.16

3.4-6.7

29

873

21.13

3.7-7.0

34

1038

29.83

4.2-7.3

40

1180

38.53

4.6-7.6

43

1477

59.66

5.2-8.2

49

1817

91.98

5.5-8.5

54

Note :Throw date is based on terminal velocity of 0.76 m/s and 0.25 m/s.Sound date - NC(Nois Criteria) Values are based upon a room absorption of 10 dB, re 10-12 watts.

Performance Data cont’d.

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

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Page 12: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

Installation Details:

ROUND DIFFUSERS OptimaAIR DIFFUSION PRODUCTS

OPTIMA type and modelNeck Size ‘A’- o mmQuantitySurface FinishRemarks

1.2.3.4.5.

The attractively shaped Supply/Return diffuser can be installed by means of a fixing clamp and central screw asshown below.

Ordering Data:

Specify

Example

1. 2. 3. 4. 5.

ORD-1 250 50 nos. Powder CoatedRAL

-

Duct

Duct Fixing Clamp

Installation With Duct Fixing Clamp

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Page 13: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

OPTIMA exhaust valves blendreadily with contemporary roomdesigns and snapped into theconcealed T-bars. The TEV typespresent a surface flush with thesurrounding ceiling tiles. Becauseof the internal contours of theannular slot, formed by the outercone and the central disc, theexhaust air pattern is uniformlycircular. There is a strong‘coanda’ effect for excellent vari-able air volume performance.

Features:

The internal contours of the annular slot formed by the outer cone and the central disc, gives a circularuniform exhaust in pattern.

A mounting ring made of galvanized sheet steel is supplied for quick and easy concealed installation frombelow the ceiling line.

The outer body is fitted with a foam gasket to form an air-tight seal with the mounting ring.

Always available with powder coated color finish to match with the false ceiling grid or tile.

Standard models and sizes:

Material construction:

The mounting ring is made of galvanized sheet steel.

The outer body and the central disc of the valve are made of heavy gauge aluminum in powder coated col-our finish.

Type Model Neck size mm

OEV1

2

100

100

150

150

200

200

Exhaust Valves

EXHAUST VALVES OptimaAIR DIFFUSION PRODUCTS

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Page 14: EXHAUST GRILL AND AIR LOUVER PERFORATED … GRILL AIR LOUVER.… · EXHAUST GRILL AND AIR LOUVER Perforated Ceiling Diffusers Optima AIR DIFFUSION PRODUCTS PERFORATED DIFFUSERS OPTIMA

EXHAUST GRILL AND AIR LOUVER

OEV-1

OPTIMA model OEV-1 is anadjustable exhaust air valve provided with a galvanized mountingring. The adjustment of the centraldisc from close to full open position can be made by the simpleunscrew method.

Standard sizes and their dimensions - Model TEV‘E’ :

N mm A mm B mm D mm h mm

100

150

200

98

148

198

137

200

248

75

120

157

47

58

75

Engineering and Performance Date

Nominal size(N)

Air flow

100

+5

-9

0

+6

+12

150

-12

-6

0

+12

200

-2c

-15

-5

0

3q (m /h)v

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

20

90

45

20

10

40

170

80

50

30

20

20

10

60

200

120

70

40

30

20

15

80

300

200

120

80

60

40

25

15

100

200

130

80

60

40

25

15

150

200

150

90

60

30

200

170

100

60

300

220

150

Po

sitio

n o

f ‘C

’ in

mm

Exhaust Valves

EXHAUST VALVES OptimaAIR DIFFUSION PRODUCTS

D

B

C

Fw

h

14

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EXHAUST GRILL AND AIR LOUVER

OEV-2

OPTIMA model OEV-2 is onadjustable exhaust air valve. Inthis case the outer bogy itselfacts as a mounting ring. Theadjustment of the central disc canbe made by the simple unscrewmethod.

Standard sizes and their dimensions

D

B

C

Fd

N mm A mm B mm D mm h mm

100

150

200

98

148

198

128

178

228

135

185

235

50

50

50

Engineering and Performance Date

Nominal size(N)

Air flow

100

+5

+10

+20

150

+5

+10

+20

+30

200

+5

+10

+20

+30

+40

3q (m /h)v

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

P (Pa)t

30

24

15

8

40

40

30

15

8

6

60

100

70

35

20

15

8

80

175

125

65

40

30

15

10

100

190

100

60

45

25

17

12

150

150

100

60

40

27

13

200

200

100

75

50

25

12

8

300

230

175

120

60

28

20

400

200

110

50

36

500

170

100

60

Po

sitio

n o

f ‘C

’ in

mm

Exhaust Valves

EXHAUST VALVES OptimaAIR DIFFUSION PRODUCTS

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EXHAUST GRILL AND AIR LOUVER

Recommended for ceiling and sill applications.

Standard supply is Type ‘C’ fixing.

Powder coated color finish. (Mention RAL color number)

1.2.3.4.5.6.

OPTIMA type and modeNominal size - N mmQuantityType of fixingSurface finishRemarks

Fixing Details:

Type ‘C’ fixing:

Concealed type fixing with a mounting ring

NOTE:

Ordering Data:

Specify

Available finishes:

Exhaust Valves Fixing Details

EXHAUST VALVES OptimaAIR DIFFUSION PRODUCTS

16

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EXHAUST GRILL AND AIR LOUVER

Transfer (or) Door Grilles

TRANSFER GRILLES OptimaAIR DIFFUSION PRODUCTS

Constructed out of extruded aluminum sections, comprising a front section with inverted ‘V’ horizontalblades, borders countersunk for screw fixing.

The grilles are made to withstand the heavy use, to which door grilles are subjected.

Any combination of the listed sizes can be supplied.

For performance date and fixing details see other pages.

Available in natural anodized, and bronze anodized aluminum finish.

Other colors are optional in powder coated finish.

OPTIMA transfer grilles or door grilles offer the largest free area possible with a completely sight-proof coredesign. They are widely used, not only in doors and partitions, but also in place of conventional exhaust andreturn grilles where it is important that the interior of the plenum or duct be concealed.

The inverted-vee louver cross section not only blocks vision, but also provides stiffness. Being mounted in thelower portion of a door, a door grille is by nature subjected to knocks and bumps. Here again, durability assuresgood looks after long service.

Attractive durable finishes are available in a variety of colors to harmonize with the door.

Features:

17

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EXHAUST GRILL AND AIR LOUVER

Transfer (or) Door Grilles

ODG-1

Nominal size = L x W mm

Neck size = (L - 5) x (W - 5) = x x y

Overall size of the grille = 9x = 60) x (y +60)

Frame width = 30 mm

Frame depth = 40 mm

Pitch of 'V' blade = 15 mm / 13 mm

Width of 'V' blade = 28 mm

Height of 'V' blade = 15 mm

N

A

B

FW

Fd

'V' Bp

'V' Bw

'V' Bn

=

=

=

=

=

=

=

=

ODG-1

OPTIMA model ODG-1 is a nonvision type door grille or transfergrille with a fixed frame on oneside only.

ODG-2

OPTIMA model ODG-2 is a nonvision type door grille or transfergrille with a fixed frame on oneside and a sliding frame on theother side.

Standard sizes:Any combination of L x W

ODG-2

Nominal size = L x W mm

Neck size = (L - 5) x (W - 5) = x x y

Overall size of the rear side of DGT-2 = (x + 60) x (y + 60)

Overall size of the face side of DGT-2 = (x + 56) x (y + 56)

N

A

B

B

=

=

=

=

100

200

300

400

500

600

700

800

900

1000

100

200

300

400

500

600

Fw

BP

Fd

'V'A N B

Fw

BP'V'B' N

B

NOTE:

L

mm mm

W

TRANSFER GRILLES

In increments of 50 mm arealso available

OptimaAIR DIFFUSION PRODUCTS

18

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EXHAUST GRILL AND AIR LOUVER

OptimaAIR DIFFUSION PRODUCTS

The figure shows mounting of ODG-1 on a wall.

Non vision type transfer grille with fixed frame on

one side only.

The figure shows mounting of ODG-2 on a door or

wood of thickness 40 mm.

Non vision type door grille with a fixed frame on one

side and a sliding frame on the other side.

Engineering and Performance Date

Transfer Grilles

The tabulated performance date includes Volume of air, Area factor and Discharge velocity.

Air volume q :v3Air volumes are given in mt /sec.

Discharge velocity Vk : The effective discharge velocities given are related to the corresponding airvolumes q and effective free area Av k

Outlet size :Effective Pressure Area A :k

Outlet sizes, given on the left side of each row in a separate table, within atolerance of + 10%, are related to the corresponding effective pressure areas

2Ak in mt.

TRANSFER GRILLES

Transfer (or) Door Grilles

19

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EXHAUST GRILL AND AIR LOUVER

OptimaAIR DIFFUSION PRODUCTS

Ak

2met

0.02

0.026

0.031

0.040

0.041

0.058

0.069

0.084

0.093

0.099

0.106

0.128

0.16

0.17

0.22

0.02

0.027

0.032

0.04

0.041

0.06

0.07

0.085

0.094

0.10

0.10

0.13

0.16

0.17

0.22

0.03

0.04

0.048

0.062

0.063

0.09

0.10

0.13

0.14

0.15

0.16

0.19

0.24

0.25

0.33

0.04

0.054

0.064

0.08

0.085

0.12

0.14

0.16

0.18

0.20

0.21

0.25

0.32

0.34

0.44

0.05

0.068

0.08

0.1

0.1

0.14

0.17

0.21

0.23

0.25

0.26

0.32

0.4

0.42

0.55

0.06

0.082

0.096

0.12

0.13

0.17

0.20

0.25

0.28

0.30

0.32

0.38

0.48

0.5

0.66

0.07

0.095

0.11

0.15

0.15

0.20

0.24

0.29

0.32

0.35

0.37

0.45

0.56

0.6

0.77

0.08

0.11

0.13

0.17

0.17

0.23

0.27

0.33

0.37

0.40

0.42

0.50

0.64

0.68

0.88

1 1.5 2 2.5 3 3.5 4

Nominal size

mm

Ak2

met

Nominal size

mm

Ak2

met

Nominal size

mm

Ak2

met

Nominal size

mm

Ak2

met

Nominal size

mm

Ak2

met

150 x 100

200

250

300

350

400

450

500

550

600

150 x 100

200

250

300

350

400

450

500

550

600

0.007

0.009

0.011

0.013

0.016

0.018

0.02

0.022

0.025

0.027

0.01

0.013

0.017

0.02

0.024

0.027

0.03

0.033

0.037

0.04

200 x 200

250

300

350

400

450

500

550

600

650

0.018

0.022

0.027

0.032

0.036

0.04

0.045

0.05

0.054

0.06

250 x 250

300

350

400

450

500

550

600

650

700

0.028

0.034

0.039

0.045

0.05

0.056

0.061

0.067

0.073

0.079

300 x 300

350

400

450

500

550

600

650

700

750

0.04

0.047

0.054

0.06

0.067

0.074

0.081

0.088

0.094

0.10

Selection tables for Area Factor Ak

Effective free area A in metk 2

TRANSFER GRILLES

Engineering and Performance Data

V m/s2

20

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EXHAUST GRILL AND AIR LOUVER

OptimaAIR DIFFUSION PRODUCTS

Engineering and Performance Data

Selection tables for Area Factor Ak2Effective free area A in metk

A counter-sunk screw type fixing

NOTE

Recommended for sidewall or door applications.

Standard supply is Type 'S' fixing.

Transfer (or) Door Grilles

Available finishes:

Powder coated color finish. (Mention RAL color number)

Golden anodized aluminum

Bronze anodized aluminum

Natural anodized aluminum

Type 's' fixing: Type 'C' fixing: For DGT-1:Concealed type fixing with spring clip

Recommended for sidewall and door applications.

Ordering Data:

Specify

1.

2.

OPTIMA type and model

Nominal size - L x W

3.

4.

Quantity

Type of fixing

5.

6.

Surface finish

Remarks

Example:

1. 2. 3. 4. 5. 6.

ODG-1 500 x 300 mm 25 nos. Type 'S' fixing Powder coated finishRAL 9016

---

TRANSFER GRILLES

Nominal sizemm

Ak2met

Nominal sizemm

Nominal sizemm

Nominal sizemm

Nominal sizemm

350 x 350

400

450

500

550

600

650

700

750

800

0.055

0.063

0.071

0.079

0.086

0.095

0.10

0.11

0.12

0.126

400 x 400

450

500

550

600

650

700

750

800

850

0.072

0.081

0.09

0.10

0.108

0.117

0.126

0.135

0.144

0.153

450 x 450

500

550

600

650

700

750

800

850

900

0.09

0.10

0.11

0.12

0.13

0.14

0.15

0.16

0.17

0.18

500 x 500

550

600

650

700

750

800

850

900

950

0.11

0.12

0.135

0.146

0.157

0.17

0.18

0.19

0.20

0.21

600 x 600

650

700

750

800

850

900

950

1000

1050

0.16

0.175

0.19

0.20

0.215

0.23

0.14

0.256

0.27

0.28

Ak2met

Ak2met

Ak2met

Ak2met

21