hvac beta linear slot diffusers catalog

PRODUCTS CATALOGUE 4PRODUCT BULLETIN

LINEAR SLOT DIFFUSERS

BETABETA in t r i d u s a l

in t r i d u s a l

BETABETA in t r i d u s a l

in t r i d u s a l

..w e cw gw b t a o m

..w e cw gw b t a o m

Dubai Head Office:Dubai Head Office:

e 97 6 1 5 0 07+ T l: 2 4 1e 97 6 1 5 0 07+ T l: 2 4 1971 2 6 0 7Fax: + 4 165971 2 6 0 7Fax: + 4 165

1e + 7 706 97774 T l: 9 1e + 7 706 97774 T l: 94ax +F : 971 70 978764ax +F : 971 70 97876

Email:[email protected]:[email protected]

P.O.Box 50708, DubaiUnited Arab EmiratesP.O.Box 50708, DubaiUnited Arab Emirates

index

BETABETA in t r I d u s a l

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PERFO M NC ATAA E DR


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Available in 1 to 6 slots.Available in 1 to 6 slots.

Flush - mounted linear diffuser.Flush - mounted linear diffuser.

Standard lenght : 1000mm & 2000mm per section. OtherStandard lenght : 1000mm & 2000mm per section. Other

lengths are availabe on request. lengths are availabe on request.

180 fully adjustable air flow pattern by means of two air 180 fully adjustable air flow pattern by means of two air

deflections per slot. deflections per slot.

Available with hit-and-miss damper which controls the air flow Available with hit-and-miss damper which controls the air flow

rate without affecting the air flow pattern; can be used as anrate without affecting the air flow pattern; can be used as an

equalizing grid. equalizing grid.

For each slot the air deflector and hit-and-miss damper are For each slot the air deflector and hit-and-miss damper are

individually adjustable. individually adjustable.

Removable flange type end cap allows extending orRemovable flange type end cap allows extending or

shortening slot diffuser line without replacing existing pieces.shortening slot diffuser line without replacing existing pieces.

The deflector and the hit and miss damper are powder coated The deflector and the hit and miss damper are powder coated

with black color as standard. with black color as standard.

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dimensions & discharge details

01 ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE

Horizontal Left andHorizontal Right Discharge

Hit-and-miss damper

5,5

Neck Size

78

9,7 5,555

9,1

18,1 27,

3

28,519,5

Flange Size

28,5 2,6

Deflector

Neck Size

Horizontal Left andVertical Discharge

Deflector

5,5 9,7

78

5,5

55

27,3

2,619,528,5

18,1

28,5

9,1

Neck Size

5,5 9,7

78

5,5

55

27,3

2,6

18,1

28,5

9,1

19,528,5

Flange Size Flange Size

Deflector


linear slot diffuser fixing details

ORDERING SYSTEM

Available types of finishing:Available types of finishing:

>>>>

Powder coated to RAL codesPowder coated to RAL codes

Standard Neck & Flange Sizes:Standard Neck & Flange Sizes:

Standard slot size 20mmStandard slot size 20mm

>>>>

Natural anodized aluminium finishNatural anodized aluminium finish

No. of Slots No. of Slots

Neck Size: (mm)Neck Size: (mm)

Flange Size: (mm)Flange Size: (mm)

1 Slot1 Slot 2 Slot2 Slot 3 Slot3 Slot 5 Slot5 Slot 6 Slot6 Slot4 Slot4 Slot

4747

7676

8585

114114

123123

152152

161161 199199 237 237

190190 228 228 266 266

TYPETYPE CURVECURVE SIZESIZE FINISHFINISH

CURVE : IF CURVE REQUIRED

CURVE : IF CURVE REQUIRED

(ONLY RLD)(ONLY RLD)

POWDER COATED FINISH AS PER RAL CODESPOWDER COATED FINISH AS PER RAL CODESRAL:RAL:

ANODIZED: ANODIZED: ANODIZED ALUMINIUM FINISHANODIZED ALUMINIUM FINISH

LENGTH NUMBER OF SLOTS LENGTH NUMBER OF SLOTS

SLD:SLD:

RLD:RLD:

SLPPLY LINEAR DIFFUSER WITH DEFLECTORSSLPPLY LINEAR DIFFUSER WITH DEFLECTORS

WITH HIT & MISS DAMPERWITH HIT & MISS DAMPER

RETURN LINEAR DIFFUSER WITHOUTRETURN LINEAR DIFFUSER WITHOUTDEFLECTORS WITH SQUARE SHAPE PUNCHED STRIP.DEFLECTORS WITH SQUARE SHAPE PUNCHED STRIP.

EXAMPLE:SLD 2000 3S RAL 9016 EXAMPLE:SLD 2000 3S RAL 9016

CURVECURVE


Plenum By Others Adjustable ScrewBy Others

Hanging Bridge bracketBy Others

False CeilingBy Others

Supporting Clamps

Slot Diffuser


1 - End Caps (F1)1 - End Caps (F1)

(A) - L-Shaped End Caps(A) - L-Shaped End Caps

L-shape flange : 30 55mm, available in different lengths to match slot diffuser width.

Very easy to install and remove. Gives flexibility to extend or shorten slot diffuser without replacement of existing pieces.

L-shape flange : 30 55mm, available in different lengths to match slot diffuser width.

Very easy to install and remove. Gives flexibility to extend or shorten slot diffuser without replacement of existing pieces.

Fixed at the end of slot diffuser line. Fixed at the end of slot diffuser line.

Supplies FREE with fixing screws. Supplies FREE with fixing screws.

(B) -Mitered Corners End Caps (B) -Mitered Corners End Caps

Available in 1 to 6 slot Available in 1 to 6 slot

2 - Corner pieces (F2) 2 - Corner pieces (F2)

Available in 1 to 6 slot Available in 1 to 6 slot

Available in any combination of X.Y (X-300 mm Y=300 mm as standard ) : 45 , 90 , 135

Available in any combination of X.Y (X-300 mm Y=300 mm as standard ) : 45 , 90 , 135

3 - Mitered ends (F3, F4) 3 - Mitered ends (F3, F4)

Standard lengths are available in mitered ends of 45 and 135 Standard lengths are available in mitered ends of 45 and 135

ACCESSORIES


STRAIGHT JOINT END CAP

30

O44

30

Hole for Self-tapping screw

Hole for Self-tapping screw

MITERED JOINT END CAP

O64

Type RLD 3Swithout deflectorswith hit-and- miss dampers

For curved items,different sectionused as belowdrawing.

Minimum radius = 1000mm

F5

ACCESSORIES


Miim

um

Radiu

s 1

r

n

: m

ete

55

NECK SIZE = 123 mm

FLANGE SIZE = 152 mm

PRODUCTS TESTINGPRODUCTS TESTING

TEST METHOD TEST METHOD

NOTES: NOTES:

The air diffusers were tested in accordance with the Air diffusion council test code for grilles, registers and diffusers n o. ADC

1062.GRD.84, the test was conducted in ETL testing laboratories.

The diffusers were installed in the ADC facility and supplied with measured volume of air. The static pressure was measured

(1-1.5) duct diameters upstream of the diffuser inlet.

Acoustical data was obtained employing Bruel and Kjaer digital frequency analyzer, and analyzed by computer. Sound power

levels were plotted on a graph of noise criteria curves which are in the ADC codes.

The air diffusers were tested in accordance with the Air diffusion council test code for grilles, registers and diffusers n o. ADC

1062.GRD.84, the test was conducted in ETL testing laboratories.

The diffusers were installed in the ADC facility and supplied with measured volume of air. The static pressure was measured

(1-1.5) duct diameters upstream of the diffuser inlet.

Acoustical data was obtained employing Bruel and Kjaer digital frequency analyzer, and analyzed by computer. Sound power

levels were plotted on a graph of noise criteria curves which are in the ADC codes.


PERFORMANCE DATA

The following tables include the results of tests conducted on three linear slot diffusers. The test results include Noise Criteria

(NC), static pressure versus air flow, throw and Ak. The diffusers were selected and supplied by Beta In October 1991. The

extrapolations and interpolation were made to cover a full range of sizes and parameters according to ETL testing laborato-

ries Inc. who made the tests.

The following tables include the results of tests conducted on three linear slot diffusers. The test results include Noise Criteria

(NC), static pressure versus air flow, throw and Ak. The diffusers were selected and supplied by Beta In October 1991. The

extrapolations and interpolation were made to cover a full range of sizes and parameters according to ETL testing laborato-

ries Inc. who made the tests.


PERFORMANCE DATA

VERTICAL DISCHARGE

SYMBOLSL/S : Air volume in liter per second.

Ak : Effective face area in meter Square per 1000 mm.

Pt. : Total pressure in millimeters water gauge.

Th. : Throw in meters.

NC : Noise Criteria.

L/S : Air volume in liter per second.





Supply

Vertical discharge flow pattern.

Noise Criteria values are based on(10 db) room attenuation.Damper is fully open.

Throw values are based on terminal velocity of 0.50 m/s

Supply



Throw values are based on terminal velocity of 0.50 m/s

*

*

*

*

*

CONDITIONS

11

22

33

44

55

66

SLOTS SLOTS L/S L/S per per meter meter K AK A Pt Pt Th Th N CN C AK AK P tP t Th Th NC NC KA KA Pt Pt Th Th NC NC

16 MM 20 MM 25 25 MMMM

242435354747595971718383

9494

2424474771719494

118118142142165165

474771719494

118118142142165165189189

71719494

118118

142142

1651651891892122129494

118118142142165165189189212212236236118118

142142165165189189

212212236236283283

0.580.581.321.322.342.343.663.665.335.337.247.249.589.580.200.200.760.761.701.703.053.054.754.756.866.869.409.400.360.360.790.791.401.402.182.183.153.154.274.275.595.590.480.480.840.841.321.321.911.912.592.593.383.384.324.320.560.560.860.861.241.241.701.702.212.212.792.793.453.450.610.610.890.891.221.221.571.572.012.012.492.493.563.56

0.370.841.502.343.414.636.130.130.491.091.953.044.396.020.230.510.901.402.022.733.580.310.540.841.221.662.162.760.360.550.791.091.411.792.210.390.570.78

0.068

1.281.592.28

0.058

0.046

0.038

0.026

0.010

1.82.43.14.96.4

1.84.05.27.08.2

2.44.05.57.38.5

3.74.65.27.08.5

4.04.95.87.38.2

4.04.65.87.68.9

HORIZONTAL DISCHARGE

SLD/RLD - SUPPLY

*S.I. UNITS











NOTESThe large throw values are based on the minimum terminal velocity of 0.25m/Sec.The large throw values are based on the minimum terminal velocity of 0.25m/Sec.The middle throw values are based on the middle terminal velocity of 0.50 m/Sec.The middle throw values are based on the middle terminal velocity of 0.50 m/Sec.The small throw values are based on the maximum terminal velocity of 0.75m/Sec.The small throw values are based on the maximum terminal velocity of 0.75m/Sec.

**

**

**

16mm 16mm 20mm 25mm 25mm SLOTS L/S L/S per per meter meter Ak Pt Pt Th Th NC NC Ak Ak Pt Pt Th Th NC Ak Pt Pt Th Th NC

3- . - .0.51 . 1 2 2 1

PERFORMANCE DATA SLD/RLD - RETURN

*S.I. UNITS16mm 16mm 20mm 25mm25mm

SLOTS L/S L/S per per meter meter Ps NCPs NC Ps NCPs NC Ps NC Ps NC


P/s : Negative static pressure in milimeters water gauge.



P/s : Negative static pressure in milimeters water gauge.


CONDITIONSReturn

Damper is full open.

Noise Criteria values are based on(10 db) room attenuationThe tested specimens were of 1000mm length

Return


Noise Criteria values are based on(10 db) room attenuationThe tested specimens were of 1000mm length

*

*

*

*

35354747

59597171

8383717183839494118118142142

9494118118142142165165212212142142

165165189189236236283283283283142142189189

236236283283330330189189236236283283330330378378

1

2

33

4

5

6

3.38 243.38 245.95 315.95 319.13 409.13 4013.81 4913.81 4918.66 5518.66 553.97 243.97 245.80 315.80 317.19 367.19 3611.11 4511.11 4515.88 5315.88 533.97 253.97 25

8.94 398.94 3912.14 4612.14 4620.16 5420.16 54

6.19 336.19 33

6.34 286.34 288.61 358.61 3511.11 4011.11 4016.78 4816.78 4824.92 5524.92 554.44 264.44 267.86 357.86 3512.30 4312.30 4317.66 4817.66 4824.02 5524.02 556.19 296.19 299.64 369.64 3613.89 4413.89 4418.86 4918.86 4924.69 5524.69 55

2.16 193.81 255.84 328.84 3911.94 442.54 193.71 254.60 29

2.54 19

7.11 3610.16 422.54 203.96 265.72 317.77 37

4.06 2212.90 43

5.51 287.11 3210.74 3815.95 442.84 215.03 287.87 34

11.30 38

3.96 2315.37 44

15.80 4412.07 39

6.17 298.89 35

1.38 151.38 152.44 202.44 203.74 263.74 265.66 315.66 317.64 357.64 351.63 151.63 152.37 202.37 202.94 232.94 234.55 294.55 296.50 346.50 341.63 161.63 162.53 212.53 213.66 253.66 254.97 304.97 30

2.60 182.60 188.26 348.26 34

3.53 223.53 224.55 264.55 266.87 306.87 3010.21 3510.21 351.82 171.82 173.22 223.22 225.04 275.04 27

7.23 307.23 30

2.53 182.53 189.84 359.84 35

10.11 3510.11 357.72 317.72 31

3.95 233.95 235.69 285.69 28


PERFORMANCE DATA

VERTICAL DISCHARGE

SYMBOLSCFM : Air volume in cubic feet per minute.

Ak : Effective face area in meter Square feet per foot.

Pt. : Total pressure in inches water gauge.

Th. : Throw in feets.


CFM : Air volume in cubic feet per minute.

Ak : Effective face area in meter Square feet per foot.


Th. : Throw in feets.


Supply



Throw values are based on terminal velocity of 75 fpm

The tested specimens were 3ft length

Supply



Throw values are based on terminal velocity of 75 fpm

The tested specimens were 3ft length

*

*

*

*

*

CONDITIONS

11

22

33

44

55

66

SLOTS SLOTS PerPer FootFoot k Ak A Pt Pt Th Th N CN C Ak Ak P tP t Th Th NC NC AtAt Pt Pt Th Th NC NC

3/5 4/5 11

151523233030383845455353

6060151530304545

606075759090

10510530304545

60607575909010510512012045456060

7575

9090105105120120135135606075759090105105120120135135150150

75759090

105105

120120135135150150

*

CMFCMF

180180

0.0230.0230.0520.0520.0920.0920.1440.1440.2100.2100.2850.2850.3770.377

0.0100.0230.0410.0610.0860.1130.150

0.031

78111721

HORIZONTAL DISCHARGE

SLD/RLD - SUPPLY

*IMPERIAL UNITS


Ak : Effective face area in meter Square feet per feet.


Th. : Throw in feet.



Ak : Effective face area in meter Square feet per feet.


Th. : Throw in feet.


NOTESThe large throw values are based on the minimum terminal velocity of 50 fpm.The large throw values are based on the minimum terminal velocity of 50 fpm.The middle throw values are based on the middle terminal velocity of 75 fpm.The middle throw values are based on the middle terminal velocity of 75 fpm.The small throw values are based on the maximum terminal velocity of 150 fpm.The small throw values are based on the maximum terminal velocity of 150 fpm.

**

**

**

3/53/5 4/5 11SLOTS CFMCFM Per Per Foot Foot Ak Pt Pt Th Th NC NC Ak Ak Pt Pt Th Th NC Ak Pt Pt Th Th NC

0.020 1-3-7

PERFORMANCE DATA SLD/RLD - RETURN

*IMPERIAL UNITS*IMPERIAL UNITS3/53/5 4/5 11

SLOTS CFM per footCFM per foot Ps NCPs NC Ps NCPs NC Ps NC Ps NC


P/s : Negative static pressure in inches water gauge.



P/s : Negative static pressure in inches water gauge.


CONDITIONSReturn


Noise Criteria values are based on(10 db) room attenuationThe tested specimens were of 3ft length

Return


Noise Criteria values are based on(10 db) room attenuationThe tested specimens were of 3ft length

*

*

*

*

23233030383845455353454553536060757590906060757590901051051351359090

1051051201201501501801809090120120

150150180180210210120120150150180180210210240240

1

2

33

4

5

6

0.133 190.133 190.234 260.234 260.359 350.359 350.544 440.544 440.734 500.734 500.156 190.156 190.228 260.228 260.283 310.283 310.438 400.438 400.625 480.625 480.156 200.156 20

0.352 340.352 340.478 410.478 410.794 490.794 49

0.244 280.244 28

0.250 230.250 230.339 300.339 300.438 350.438 350.661 430.661 430.981 500.981 500.175 210.175 210.309 300.309 300.484 38 0.484 38 0.695 430.695 430.945 500.945 500.244 240.244 240.380 310.380 310.547 390.547 390.742 440.742 440.972 500.972 50

0.085 150.150 210.230 280.348 350.470 400.100 150.146 210.181 250.280 320.400 380.100 160.156 220.225 270.306 33

0.160 180.508 39

0.217 240.280 280.423 340.628 400.112 170.198 240.310 30

0.445 34

0.156 190.605 40

0.622 400.475 35

0.243 250.350 31

0.054

hvac beta linear slot diffusers catalog

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