Alpha Linear Slot Diffusers

7/30/2019 Alpha Linear Slot Diffusers

1/16LINEAR SLOT DIFFUSERS


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LINEAR SLOT DIFFUSERS

Gontents. Overview ............1. Construction / Description / Standard Finishes ............2. Standard Specifications..... .............3. Optional Mitred Corners. .........4. Performance Data. .5 to 13. Standard Types. ..........14Supply Air Linear Slot Diffuser MoDEL : ASLDGonstruction :. Frame & Blades : High Quality Extruded Aluminium profiles. Damper : Hit and miss damper. Slot width : 20 mm as standard,16mm,25mm and non standard sizes availableas option. Number of slots available i 1 , 2, 3, 4, 5, 6,7 , 8. Length : upto 1.8 Mt available in a single piece

Description :. Frame and deflection blades are made of high quality extruded aluminium profilesconstruction with advantage of corrosion resistance and rigidity.. Air Distribution can be changed vertically or horizontally by means of deflection bladeswithout changing the air flow rate. These blades can be fully adjusted from face opening.. Air flow rate can be adjusted by fixing hit and miss damper at the rear side of the diffuser.. Damper blades are adjusted from the face opening.. Dampers are designed in a unique way that it can be used as equalizing grid.. Positive alignment of adjacent sections can be made by using alignment strips.. Foam gasket is sealed around the back of the frame as options to avoid air leakage.. Suitable for installation for ceiling and sills.Standard Finishes :. Natural anodized Aluminium finish. Powder coated colour finish as per RAL colour code

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. Flexibility of finish available L = Listed Size = Duct Size


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t-zm7a-o-lUl1-T1CamnU)Return Air Linear Slot Diffuser

ARLDConstruction :. Frame and Blades : High quality extruded Aluminium profiles. Optional Dampers : Hit and miss damper. Slot Width: 20mm as standard,l6mm, 25mm and non standardsizes available as option. Number of Slots available '. 1,2,3, 4, 5,6, 7, 8. Length : Upto 1.8 Mt available in a single pieceDescription :' Frame and Deflection blades are made of high quality extruded aluminium profiledconstruction with the advantage of corrosion resistance and rigidity.' Positive alignment of adjacent sections can be made by using alignment strips thatare provided with each diffuser.'Structure is manufactured by mechanical assembly to ensure straight line appearance. Available with hit and miss damper as standard.' Foam gasket is sealed around the back of the frame as options to avoid air leakage. Suitable for installation for ceiling and sillsStandard Finishes :. Natural anodized Aluminium finish. Powder coated colour finish as per RAL colour code (9010, 9015). Flexibility of finish available


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Slots Vs Diffuser Dimensions in mm

16 mm slot openingtIUafLLtL5FoJattuzJ

No.of slots 1 2 3 4 5 6 7 BNeck size in mm 39 69 99 129 160 190 220 250Duct size in mm 49 79 109 139 170 200 230 260Overallsize 79 109 139 169 200 230 260 290

20 mm slot openingNo.of slots 1 2 3 4 5 6 7 BNeck size in mm 43 77 110 145 180 214 248 282Duct size in mm 53 87 120 155 190 224 258 292Overallsize B3 117 150 185 220 254 2BB 322

25 mm slot openingNo.of slots 1 2 3 4 5 6 7 BNeck size in mm 48 87 126 165 205 244 283 322Duct size in mm 58 97 136 175 215 254 293 332Overall size 88 127 166 205 245 284 323 362

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Horizontal Left

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Standard 90'horizontal mitered corners available forfloor grill and ceiling applications.

Standard 90"horizontal mitered corners available forfloor grill and ceiling applications includes an single1800.

Vertical outside mitered corners are available forwall application at the junction of two outside waswith a standard angle of 900

Vertical inside mitered corners are available forwall application at the junction of two inside wallswith a standard angle of 90' ooliJo:$oEebso

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Supply Linear Slot Diffuser 20 mm slot widthModel : ASLD-20

. Data based on meter length of Diffuser with damper fully opened.. Face velocity is measured in m/sec.. Ps Static Pressure loss is in mm of HrO. Area factor in square meters.. Throw (meters) is measured for a terminalvelocities of 0.25,0.5 and 0.75 m/sec.. NC based on a room attenuation of 1OdB.

Number of slotA1 in m2 Air Flow rate permeterLengthFacevelocitym/sec

Throw inmeters Ps in mmHzO NoiseCriteria(Nc)Cfm M"/Sec

0.0092

50 0.024 2.61 3.6-2.1 -0.6 0.65


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Supply Linear SlotModel : ASLD-2O Diffuser 20 mm slot width

Number of slotAr. in m2 Air Flow rate permeterLength

Facevelocitym/secThrow inmeters PsinmmHrO NoiseCriteria(NC)

Cfm M"/Sec

0.0465

250 0.1 18 2.54 5.8-4.3-2.7 1.43 22300 0.142 3.05 6.4-4.9-3.6 1.89 24350 0.165 3.55 6.8-5.3-3.7 2.79 29400 0.189 4.06 7.7 -5.5-4.1 3.78 34450 o.213 4.58 8.5-5.9-4.7 4.25 35500 0.236 5.07 9.1 -6.3-5.2 4.72 38

0.056

300 0.142 2.53 6.1 4.3 - 2.9 1.51 22350 0.165 2.95 6.6-5.2-3.9 1.64 24400 0.189 3.37 7.3-5.5-4.3 2.33 28450 o.213 3.80 7.6-5.8-4.6 3.21 31500 0.236 4.21 8.2-6.1 -4.8 3.91 35600 0.283 5.05 9.2-6.7-5.3 4.78 40

0.065

350 0.165 2.54 6.1 -4.3-2.9 1.62 22400 0.189 2.91 6.7-5.'l -3.8 1.72 25450 o.213 3.28 7.0-5.3-4.0 2.33 28500 0.236 3.63 7.4-6.2-4.7 3.'18 30600 0.283 4.35 8.6-6.7-5.0 4.10 36700 0.331 5.09 9.4-7.2-5.6 4.82 40

0.076

400 0.189 2.49 6.1 -4.6-3.7 1.66 22450 0.213 2.80 6.7-5.1 -3.8 1.72 25500 0.236 3.10 7.1 -5.6-4.3 2.34 29600 0.283 3.72 7.6-6.4-4.7 3.24 31700 0.331 4.35 8.8-7.2-5.4 4.20 37800 0.378 4.97 9.7 -7.8-5.9 4.83 40

Product Development is a continuous process in Alpha Duct Pvt. Ltd., hence Specifications & Technical Data are subjected to change without notice.

. Data based on meter length of Diffuser with damper fully opened.. Face velocity is measured in m/sec.. Ps Static Pressure loss is in mm of HrO. Area factor in square meters.'Throw (meters) is measured for a terminal velocities of 0.25,0.5 and 0.75 m/sec.. NC based on a room attenuation of 10d8.oollnof,ooceooso

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Supply Linear Slot Diffuser 16 mm slot widthModel : ASLD-16

. Data based on meter length of Diffuser with damper fully opened.

. Face velocity is measured in m/sec.. Ps Static Pressure loss is in mm of HrO. Area factor in square meters.. Throw (meters) is measured for a terminal velocities of 0.25,0.5 and 0.75 m/sec.. NC based on a room attenuation of 10dB.!ooisoto.EEEoo

Number ofslotA1 in m2Air Flow rate permeterLenqth

Facevelocitym/secThrow in meters Ps in mm

HzONoiseCriteria(NC)

Cfm M'/Sec1

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30 0.014 1.94 2.5 -1.5 - 0.4 0.51


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Number ofslotA1 in m2Air Flow rate permeterLenqth

Facevelocitym/secThrow inmeters Ps in mmHzO NoiseCriteria(NC)Cfm M"iSec

5

0.036

150 0.o71 1.97 3.7-2.1 -1.0 1 .16 16200 0.094 2.61 4.1 -2.5-1.5 1.71 23250 0.118 3.28 5.2-3.4-2.2 2.73 29300 0.142 3.94 6.0-4.2-2.8 3.96 32350 0.1 65 4.58 6.4-4.9-3.2 4.63 35400 0.1 89 5.25 7.3-5.5-3.7 5.38 39

6

0.043

200 0.094 2.19 3.9-2.4-1.3 1.37 18250 0.1 18 2.74 4.7-2.8-1.7 1.61 24300 0.142 3.30 5.6-3.6-2.5 2.46 30350 0.1 65 3.84 6.3 - 4.4 - 3.0 3.53 33400 0.189 4.39 6.7 -5.2-3.5 4.48 36500 0.236 5.49 7.9-5.6-4.1 5.77 417

0.049

250 0.1 18 2.41 4.2-2.5-1.4 1.61 20300 0.142 2.90 4.9-3.1 -1.9 1.82 25350 0.165 3.37 5.9-3.8-2.6 2.58 29400 0.1 89 3.86 6.5-4.7-3.2 3.68 32500 0.236 4.82 7.1 -5.3-3.7 5.00 37600 0.283 5.77 8.3-5.9-4.3 6.06 42B

0.057

350 0.165 2.89 5.1 -3.2-2.2 2.02 24400 0.189 3.31 6.0-3.9-2.7 2.15 30450 0.213 3.74 6.6-4.8-3.3 3.02 32500 0.236 4.14 7.0-5.2-3.6 3.89 35600 0.283 4.96 8.3-5.6-4.2 5.16 39700 0.331 5.81 8.7 -6.1 -4.5 6.27 42

Supply Linear Slot Diffuser 16 mm Slot WidthModel : ASLD-I6

Product Development is a continuous process in Alpha Duct Pvt. Ltd., hence specifications & Technical Data are subjected to change without notice.

' Data based on meter length of Diffuser with damper fully opened.. Face velocity is measured in m/sec.' Ps static Pressure loss is in mm of Hro. Area factor in square meters.'JTo* (meters) is measured for a terminal velocities of 0.25,0.5 and 0.75 m/sec.. NC based on a room attenuation of 10dB. oI3i5of,oqeCDs

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Supply Linear Slot Diffuser 25 mm slot widthModel : ASLD-2S

Number ofslotA1 in m2Air Flow rate permeterLength

Facevelocitym/secThrow inmeters Ps inmm H2O NoiseCriteria(NC)

Cfm M"/Sec

1

0.01 16

75 0.035 3.02 5.3-3.2-1.9 0.78 16100 0.047 4.05 6.6-4.6-2.8 1.53 25125 0.059 5.09 7.7-5.3-3.9 2.53 29150 0.071 6.12 8.4-6.3-4.8 3.79 33175 0.083 7.15 9.4-7.2-5.5 4.05 36200 0.094 8.10 10.5 - 8.2 - 6.1 5.49 40

2

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125 0.059 2.52 5.6-3.2-1"6 0.94


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Supply Linear Slot Diffuser 25 mm slot widthModel : ASLD-2S

Product Development is a continuous process in Alpha Duct Pvt. Ltd., hence Specifications & Technical Data are subjected to change without notice.

' Data based on meter length of Diffuser with damper fully opened.. Face velocity is measured in m/sec.' Ps Static Pressure loss is in mm of Hro. Area factor in square meters.'Throw (meters) is measured for a terminal velocities of 0.25,0.5 and 0.75 m/sec.. NC based on a room attenuation of 10dB.I$:ocFo;o

Number ofslot41 in m2Air Flow rate permeterLength

Facevelocitym/secThrow inmeters Ps inmm H2O NoiseCriteria(Nc)

Cfm M"/Sec

0.058

300 0.142 2.45 6.6-4.5-3.5 1.42 17350 0.165 2.84 6.9-4.9-3.6 2.17 23400 0.189 3.26 7.4-5.2-3.9 2.72 26450 0.2.13 3.67 8.0-5.9-4.5 3.14 31500 0.236 4.07 8.8-6.7 -5.2 3.68 33550 0.260 4.48 9.6-7.5-5.8 4.10 36600 0.283 4.88 10.6 - 8.4 - 6.6 4.46 38650 0.307 5.29 11.6 - 8.8 - 7.1 4.73 41

0.071

350 0.165 2.32 6.9-5.2-3.8 1.49 17400 0.189 2.66 7.6-5.6-4.2 1.84 21450 0.213 3.00 8.0-5.9-4.5 2.21 24500 0.236 3.32 8.8-6.3-4.9 2.94 28600 0.283 3.98 9.2-6.8-5.2 3.69 32700 0.331 4.66 10.7 - 8.4 - 6.5 4.26 37800 0.378 5.32 12.0-9.1 -7.4 5.13 41

0.082

400 0.189 2.30 7.0-5.3-4.0 1.51 17450 0.213 2.60 7.8-5.9-4.5 1.93 22500 0.236 2.88 7.9-6.2-4.7 2.23 24600 0.283 3.45 9.0-6.6-5.3 3.14 29700 0.331 4.04 9.6-7.1 -5.6 3.97 34800 0.378 4.61 1 1.0 - 8.9 - 7.0 4.47 38900 0.425 5.18 12.2-9.4-7.5 5.34 42

0.094

500 0.236 2.51 7.2-5.6-4.2 1.82 18600 0.283 3.01 8.5-6.3-5.0 3.05 28700 0.331 3.52 9.3 - 6.8 - 5.5 3.1 8 31800 0.378 4.02 9.8 - 7.4 - 6.0 4.12 35900 0.425 4.52 11.3-9.2-7.3 4.63 391 000 0.472 5.02 12.5 - 9.6 - 7.8 5.34 43

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Return Linear Slot Diffuser 20mm Slot WidthModel : ARLD-20

Product Development is a continuous process in Alpha Duct Pvt. Ltd., hence Specifications & Technical Data are subjected to change without notice

. Data based on one meter length of Diffuser. NC based on a room attenuation of 1OdB. Pa: Static pressure loss is in mm of water

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No ofSlots

1

CFM/m 100 150 200 250 300 350Ms/sec/m 0.047 0.071 0.094 0.118 o.142 0.165Neo Ps 0.61 1.37 2.41 3.81 5.46 7.37NC


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Return Linear Slot Diffuser 16 mm Slot widthModel : ARLD-16

Product Development is a continuous process in Alpha Duct Pvt. Ltd., hence specifications & Technical Data are subjected to change without notice. Data based on one meter length of Diffuser. NC based on a room attenuation of 1OdB. Pa: Static pressure loss is in mm of water

No ofSlots.l

CFM/m 100 150 200 250 300 350M3/sec/m 0.047 0.071 0.094 0.118 0.142 0.165Neo Ps 0.7 1.59 2.82 4.49 6.49 8.84NC 17 21 30 38 45 522

CFM/m 250 300 350 400 450 500M3/sec/m 0.118 0.142 0.165 0.189 0.213 0.236Neo Ps 1.17 1.71 2.38 3.09 3.93 4.88NC 20 26 31 37 42 463

CFM/m 350 400 450 500 600 700M3/sec/m 0.1 65 0.1 89 0.213 0.236 0.283 0.331Neo Ps 1.19 1.56 1.96 2.42 3.54 4.82NC 20 26 29 34 40 464

CFM/m 400 500 600 700 800 900M3/sec/m 0.1 89 0.236 0.283 0.331 0.378 0.425Neq Ps 0.88 1.38 2.02 2.78 3.87 4.88NC 17 25 30 35 41 475

CFM/m 500 600 700 800 1 000 1200M3/sec/m 0.236 0.283 0.331 0.378 o.472 0.567Neo Ps 0.88 1.29 1.78 2.31 3.63 5.24NC 17 26 29 35 41 486

CFM/m 600 700 800 1 000 '1200 1 400M3/sec/m 0.283 0.331 0.378 0.472 0.567 0.66Neq Ps 0.96 1.25 2.08 2.57 4.2 5.7NC 19 28 34 37 40 497

CFM/m 700 800 1 000 1200 1400 1 600M3/sec/m 0.331 0.378 o.472 0.567 0.66 0.76Neo Ps 1.07 1.38 2.14 2.78 4.36 5.7NC 20 28 33 39 43 508

CFM/m 800 900 1 100 1 300 1 500 1 700M3/sec/m 0.378 0.425 0.52 0.61 o.71 0.8Neq Ps 1.17 1.31 2.29 2.89 4.61 5.9NC 22 3'l 37 40 45 50

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Return Linear Slot Diffuser 25 mm Slot widthModel : ARLD-25

Product Development is a continuous process in Atpha Duct Pvt. Ltd., hence Specifications & Technical Data are subjected to change without notice.

. Data based on one meter length of Diffuser. NC based on a room attenuation of 1OdB. Pa: Static pressure loss is in mm of waterIsotDs'sotosEEoo

No ofSlots

1

CFM/m 100 150 200 250 300 350M3/sec/m 0.047 0.071 0.094 0.118 0.142 0.165Neo Ps 0.51 1.13 1.98 3.09 4.4 5.89NC


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Flange Models

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Ordering Example :To select supply Linear Slot Diffuser, 4 slots with a slot width of 20mm of length 2.5 meters withopen ends. Quantity 50 numbers with RAL 9010 colour finish.Order as : ASLD-4-2.5-A-B-S0 Ill3:Io

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How to OrderModel Slot widtl No. ofslots Length End Flange Details Qtv. FinishASLD 20 mm 1 5

Specifyin

meters

a) With open endsSpecify

innumbers

a) Natural anodisedAluminium finish2 6 b) One side end flange

b) RAL 90103 7 c) One side end cap

c) Other ColoursARLD OtherSize 4 8 d) With both sides Flange (or)e) CapsTick the required item

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Alpha Linear Slot Diffusers

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