engineering and design manual - · pdf filethis engineering and design manual will assist you...

F o n t i s F u t u r a M d B T M e d i u m I t a l i c

T e x t i l e A i r D i s p e r s i o n P r o d u c t s

Shape/Suspension/Fabric Retention

Layout/Fittings

Air Dispersion

Fabric

Appendix

Engineering and Design Manual

© DuctSox Corporation 2014DSDM0114A

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Table of Contents

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e of

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Shape/Suspension/Fabric Retention Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SkeleCore FTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4SkeleCore IHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63x1 Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84x2 Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Surface Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Layout/FittingsDesign Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Diameter Selection:

Cylindrical Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16D-Shape Series - End Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17D-Shape Series - Top Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Quarter-Round Series - End Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Quarter-Round Series - Top/Back Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Zippers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Air DispersionAir Flow and Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Orifices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Linear Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

FabricFabric Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

AppendixSample CAD Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Sample Fabric Porosity Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Sample Linear Vent Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Sample Adjustable Nozzle Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Sample Orifice Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Equipment Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38AHU Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Sound Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Critical Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41UnderFloorSox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Warranty and Code Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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IntroductionThis Engineering and Design Manual will assist you through the design process for DuctSox Fabric Ductwork and Diffuser Systems . The process involves the following key elements .

Shape/Suspension/Fabric Retention: Select shape and suspension/fabric retention, including SkeleCore, Hanger, 1,2,or 3 row, or Surface Mount .

Layout/Fittings: Select DuctSox location, diameter, lengths, and required fittings .

Air Dispersion: Determine location and size of linear vents, nozzles, and/or orifices . Calculate required porosity for air porous fabric used to supply air flow and static pressure .

Fabric: Select fabric based on product quality, porosity, color, and/or required air dispersion type .

There are also Options that can be added to your DuctSox Systems, such as AFDs and personalization graphics . For more information, go to www .ductsox .com or call us at 1-866-382-8769 .

SkeleCore FTS

0% Deflation

3 Row Cableor Track

3 x 1 4 x 2

20-10% Deflation

www.ductsox.com 3

1Shape/Suspension/Fabric Retention

ShapeSelecting the Shape of a DuctSox System is based on your application needs . DuctSox are available in Cylindrical, D-Shape, or Quarter-Round .

Whether horizontal, vertical, or angled, Cylindrical DuctSox are available in a variety of suspension and retention systems .

For applications where the DuctSox will be mounted against a flat surface (wall, ceiling, or both), the Surface Mount products (D-Shape and Quarter-Round), feature flexibility for shape, configuration, and inlet position (end, top, back) .

Shape is also very important when considering what the system will look like when it is deflated . The following illustrations depict the full range of suspension and fabric retention options when they are in the deflated state . They are listed in order from largest change in internal volume (100% decrease/change) to the smallest change in internal volume (0% decrease/change) .

Round D-Shape Quarter-Round

When AHU is off:

1 Row Cableor Track

100% Deflation

2 Row Cableor Track

45% Deflation

SkeleCore IHS D-Shape Quarter-Round

5-1% Deflation

Hook

CTR 12:00 Hook Detail

GrippleLock

Hook

Direct Hang Cable Drop

CTR Wrench: Used to adjust the CTR and apply tension to the fabric .

100% of fabric is in tensionfull circumference and lengthMaximum tensioned section

is 42' (12,802mm)

When AHU is off:

No Change in Form

Cylindrical Tensioning Ring (CTR): Used at both ends of each tensioned section . Available in diameters from 8” (203mm) to 60” (1524mm) (2” (51mm) increments) .

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47’ (14.33m) Total Example Length

Tensioned Section

Intermediate Ring (IR): Used at 6’ (1 .83m) intervals in the interior of each tensioned section . Available in diameters from 8”(203mm) to 60” (1524mm) (2”(51mm) increments) .

IR 12:00 Hook Detail

Top Zipper Tension Clips

Spacer Tube with Push Button: Normally 71” (1803mm) in length to provide 72” (1829mm) of spacing between CTRs and IRs . When this spacing is different, tubes are factory cut and labeled as Cut Tubes . End of tube with push-button is shown .

Hook Coupler: Used to connect a Spacer Tube to the non-adjustable side of the CTR .

Spacer Tube Coupler:When the last Spacer Tube of a Tensioned Section is longer than 6’ (1 .83mm), a Spacer Tube Coupler will be installed by the factory to create the correct length .

Tensioned Section

0’ 6’ 12’ 18’ 24’ 30’ 36’ 42’ 47’(0 m) (1.83m) (3.66m) (5.49m) (7.32m) (9.14m) (10.97m) (12.8m) (14.33m)

CTR IR IR IR IR IR IR CTR CTR

www.ductsox.com 5


Glider Attachment

Cable Intermediate Support

Cable Stop

1/8” (3mm) Cable Only

Internal Hoops

Fabric tensioned at12 o’clock to Cable

Fabric supported radiallywith internal ringsevery 5' (1,524mm)Cable

Quick-Connection and Stud Cable End

1 .5” (38mm)

When AHU is off:

1-5% Deflation

Type 1 Kit

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Fabric tensioned at12 o’clock to Track

Fabric supported radiallywith internal ringsevery 5' (1,524mm) Track

Track Stop

Hook of Cable Support

U-TrackCoupler

Aluminum U-TrackU-Track Endcap

Quick-Connection and Stud Cable End

Internal Hoops

1 .5” (38mm)

When AHU is off:

Glider Attachment

1-5% Deflation

www.ductsox.com 7


3 x 1 Hanger Cable

Fabric tensioned at12 o’clock to Cable

Fabric connection points at 10, 12 & 2 o’clock

DuctSox Diameter Hanger Width

10” to 12” (254-305mm) 14 5/8” (371mm)

14” to 16” (356-406mm) 18 1/8” (460mm)

18” to 20” (457-508mm) 21 1/2” (546mm)

22” to 24” (559-610mm) 25 1/8” (638mm)

26” to 28” (660-711mm) 28 3/8” (721mm)

30” to 32” (762-813mm) 31 7/8” (810mm)

34” to 36” (864-914mm) 35 3/8” (899mm)

38” to 40” (965-1016mm) 39” (991mm)

42” to 44” (1067-1118mm) 42 1/2” (1080mm)

46” to 48” (1168-1219mm) 46” (1168mm)

3x1 Sizing Reference Table

Hanger Width

When AHU is off:

Glider Attachment

Type 1 Kit


Cable Stop


3” (76mm)

17% Deflation

Plugs

D-Ring

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Fabric connection points at 10, 12 & 2 o’clock

DuctSox Diameter Hanger Width

10” to 12” (254-305mm) 14 5/8” (371mm)

14” to 16” (356-406mm) 18 1/8” (460mm)

18” to 20” (457-508mm) 21 1/2” (546mm)

22” to 24” (559-610mm) 25 1/8” (638mm)

26” to 28” (660-711mm) 28 3/8” (721mm)

30” to 32” (762-813mm) 31 7/8” (810mm)

34” to 36” (864-914mm) 35 3/8” (899mm)

38” to 40” (965-1016mm) 39” (991mm)

42” to 44” (1067-1118mm) 42 1/2” (1080mm)

46” to 48” (1168-1219mm) 46” (1168mm)


Hanger Width

When AHU is off: 3 x 1 Hanger Track

4 ½”(114.3mm)

17% Deflation

Plug

D-Ring

Aluminum U-Track

U-Track Endcap

Glider Attachment

Quick-Connection andStud Cable End

Track Stop


J Hook

www.ductsox.com 9


4 x 2 Hanger Cable

DuctSox Diameter

A(distance between

each cable)Hanger Width

50” to 52” (1270-1321mm)

19 5/8” (498mm)

49 3/8” (1254mm)

54” to 56” (1372-1422mm)

20 3/8” (518mm)

52 7/8” (1343mm)

58” to 60” (1473-1524mm)

21” (533mm)

56 3/8” (1432mm)


1"

Hanger Width

A

Fabric connection pointsat 10, 11, 1 & 2 o’clock

1”(25mm)

A

When AHU is off:

12% Deflation

Fabric tensioned at11&1 o’clock to Cable

D-Ring

Plug

Type 1 Kit

Cable Stop

Glider Attachment




(25 mm)

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DuctSox Diameter

A(distance between

each track)Hanger Width

50” to 52” (1270-1321mm)

19 5/8” (498mm)

49 3/8” (1254mm)

54” to 56” (1372-1422mm)

20 3/8” (518mm)

52 7/8” (1343mm)

58” to 60” (1473-1524mm)

21” (533mm)

56 3/8” (1432mm)


1"

Hanger Width

A

When AHU is off:

Fabric connection pointsat 10, 11, 1 & 2 o’clock

Fabric tensioned at11&1 o’clock to Track

A

2 1/2” (64mm)

4 x 2 Hanger Track

12% Deflation

Plug

Glider Attachment

Aluminum U-TrackU-Track Endcap

D-Ring



Track Stop

J Hook

(25 mm)

www.ductsox.com 11


Cable

One Row Cable Two Row Cable Three Row Cable

Tensioned at 12 & 2 o’clock to Cable

Tensioned at 10, 12 & 2 o’clock to Cable

45% Deflation 17% DeflationFabric tensioned at

12 o’clock to Cable

100% Deflation

1 .5” (38mm)B

A

B

A

Two Row CableDiameter (inches)

A(inches)

B(inches)

Diameter (mm)

A (mm)

B (mm)

12 10.83 1.63 305 275 41

14 12.56 2.13 356 319 54

16 14.29 2.63 406 363 67

18 16.02 3.13 457 407 79

20 17.75 3.63 508 451 92

22 19.49 4.13 559 495 105

24 21.22 4.63 610 539 117

26 22.95 5.13 660 583 130

28 24.68 5.63 711 627 143

30 26.41 6.13 762 671 156

32 28.15 6.63 813 715 168

34 29.88 7.13 864 759 181

36 31.61 7.63 914 803 194

38 33.34 8.13 965 847 206

40 35.07 8.63 1016 891 219

42 36.81 9.13 1067 935 232

44 38.54 9.63 1118 979 244

46 40.27 10.13 1168 1023 257

48 42.00 10.63 1219 1067 270

50 43.73 11.13 1270 1111 283

52 45.47 11.63 1321 1155 295

54 47.20 12.13 1372 1199 308

56 48.93 12.63 1422 1243 321

58 50.66 13.13 1473 1287 333

60 52.39 13.63 1524 1331 346

62 54.13 14.13 1575 1375 359

64 55.86 14.63 1626 1419 371

66 57.59 15.13 1676 1463 384

68 59.32 15.63 1727 1507 397

70 61.05 16.13 1778 1551 410

72 62.79 16.63 1829 1595 422

74 64.52 17.13 1880 1639 435

76 66.25 17.63 1930 1683 448

78 67.98 18.13 1981 1727 460

80 69.72 18.63 2032 1771 473

82 71.45 19.13 2083 1815 486

84 73.18 19.63 2134 1859 498

Three Row CableDiameter (inches)

A (inches)

B(inches)

Diameter (mm)

A(mm)

B(mm)

12 10.83 1.63 305 275 41

14 12.56 2.13 356 319 54

16 14.29 2.63 406 363 67

18 16.02 3.13 457 407 79

20 17.75 3.63 508 451 92

22 19.49 4.13 559 495 105

24 21.22 4.63 610 539 117

26 22.95 5.13 660 583 130

28 24.68 5.63 711 627 143

30 26.41 6.13 762 671 156

32 28.15 6.63 813 715 168

34 29.88 7.13 864 759 181

36 31.61 7.63 914 803 194

38 33.34 8.13 965 847 206

40 35.07 8.63 1016 891 219

42 36.81 9.13 1067 935 232

44 38.54 9.63 1118 979 244

46 40.27 10.13 1168 1023 257

48 42.00 10.63 1219 1067 270

50 43.73 11.13 1270 1111 283

52 45.47 11.63 1321 1155 295

54 47.20 12.13 1372 1199 308

56 48.93 12.63 1422 1243 321

58 50.66 13.13 1473 1287 333

60 52.39 13.63 1524 1331 346

62 54.13 14.13 1575 1375 359

64 55.86 14.63 1626 1419 371

66 57.59 15.13 1676 1463 384

68 59.32 15.63 1727 1507 397

70 61.05 16.13 1778 1551 410

72 62.79 16.63 1829 1595 422

74 64.52 17.13 1880 1639 435

76 66.25 17.63 1930 1683 448

78 67.98 18.13 1981 1727 460

80 69.72 18.63 2032 1771 473

82 71.45 19.13 2083 1815 486

84 73.18 19.63 2134 1859 498

When AHU is off:

1.5” (38mm)

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Track

One Row Track Two Row Track Three Row Track


Two Row TrackDiameter (inches)

A(inches)

B(inches)

Diameter (mm)

A(mm)

B(mm)

12 10.83 1.63 305 275 41

14 12.56 2.13 356 319 54

16 14.29 2.63 406 363 67

18 16.02 3.13 457 407 79

20 17.75 3.63 508 451 92

22 19.49 4.13 559 495 105

24 21.22 4.63 610 539 117

26 22.95 5.13 660 583 130

28 24.68 5.63 711 627 143

30 26.41 6.13 762 671 156

32 28.15 6.63 813 715 168

34 29.88 7.13 864 759 181

36 31.61 7.63 914 803 194

38 33.34 8.13 965 847 206

40 35.07 8.63 1016 891 219

42 36.81 9.13 1067 935 232

44 38.54 9.63 1118 979 244

46 40.27 10.13 1168 1023 257

48 42.00 10.63 1219 1067 270

50 43.73 11.13 1270 1111 283

52 45.47 11.63 1321 1155 295

54 47.20 12.13 1372 1199 308

56 48.93 12.63 1422 1243 321

58 50.66 13.13 1473 1287 333

60 52.39 13.63 1524 1331 346

62 54.13 14.13 1575 1375 359

64 55.86 14.63 1626 1419 371

66 57.59 15.13 1676 1463 384

68 59.32 15.63 1727 1507 397

70 61.05 16.13 1778 1551 410

72 62.79 16.63 1829 1595 422

74 64.52 17.13 1880 1639 435

76 66.25 17.63 1930 1683 448

78 67.98 18.13 1981 1727 460

80 69.72 18.63 2032 1771 473

82 71.45 19.13 2083 1815 486

84 73.18 19.63 2134 1859 498

Three Row TrackDiameter (inches)

A (inches)

B(inches)

Diameter (mm)

A(mm)

B(mm)

12 10.83 1.63 305 275 41

14 12.56 2.13 356 319 54

16 14.29 2.63 406 363 67

18 16.02 3.13 457 407 79

20 17.75 3.63 508 451 92

22 19.49 4.13 559 495 105

24 21.22 4.63 610 539 117

26 22.95 5.13 660 583 130

28 24.68 5.63 711 627 143

30 26.41 6.13 762 671 156

32 28.15 6.63 813 715 168

34 29.88 7.13 864 759 181

36 31.61 7.63 914 803 194

38 33.34 8.13 965 847 206

40 35.07 8.63 1016 891 219

42 36.81 9.13 1067 935 232

44 38.54 9.63 1118 979 244

46 40.27 10.13 1168 1023 257

48 42.00 10.63 1219 1067 270

50 43.73 11.13 1270 1111 283

52 45.47 11.63 1321 1155 295

54 47.20 12.13 1372 1199 308

56 48.93 12.63 1422 1243 321

58 50.66 13.13 1473 1287 333

60 52.39 13.63 1524 1331 346

62 54.13 14.13 1575 1375 359

64 55.86 14.63 1626 1419 371

66 57.59 15.13 1676 1463 384

68 59.32 15.63 1727 1507 397

70 61.05 16.13 1778 1551 410

72 62.79 16.63 1829 1595 422

74 64.52 17.13 1880 1639 435

76 66.25 17.63 1930 1683 448

78 67.98 18.13 1981 1727 460

80 69.72 18.63 2032 1771 473

82 71.45 19.13 2083 1815 486

84 73.18 19.63 2134 1859 498

A

B

1.5” (38mm)A

B1.5” (38mm)

100% Deflation

When AHU is off:

Tensioned at 12 & 2 o’clock to Track

Tensioned at 10, 12 & 2 o’clock to Track

45% Deflation 17% Deflation

1.5” (38mm)

www.ductsox.com 13


Surface MountD-Shape

When AHU is off:

When AHU is off:

2 Row C-Track at3 & 9 o’clock

D-Shape

1-5% Deflation

Quarter Round

2 Row C-Track at3 & 6 o’clock

1-5% Deflation

Coupler

Tension Cleat (Hidden)

Aluminum C-Track

Inlet Collar, DuctBelt, DuctBuckle, and Zipper for Easy Detachment

Air Distribution (as specified)

Cord-In Attachment

Inlet Collar, DuctBelt, DuctBuckle, and Zipper for Easy Detachment

T-Bar Ceiling Clips(optional)


Cord-In Attachment

Aluminum C-Track

AngleBracket

AngleBracket

Tension Cleat

Coupler

Aluminum C-Track

Inlet Collar, DuctBelt, and DuctBuckle


Cord-In Attachment

Tension Cleat(Hidden)

T-Bar Ceiling Clips(optional)

Cord-In Attachment

Aluminum C-Track

Tension Cleat

Inlet Collar on Top or Back

Inlet Collar, DuctBelt, and DuctBuckle

Top or Side Inlet

Top Inlet

End Inlet

End Inlet

Quarter-Round

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Design LayoutLayoutA DuctSox System performs as both a duct and a diffuser . The system layout should target the general air dispersion required, whether uniform dispersion or directed delivery . With the unlimited custom design capabilities, there could be several solutions to any given application .

NotesBecause air outlets can be integrated into all sections, system design may vary significantly while still providing excellent air dispersion . Size and orientation of air outlets may allow for a simple and less costly layout than sheet metal designs .

There is seldom a need to reduce diameter or increase flow rates along straight lengths since the system works off the basic extended plenum principle . When restriction in the DuctSox System is needed for proper air distribution, an Adjustable Flow Device (AFD) should be included .

Prior to production, all shop drawings must be approved .

Simple and Economical Even Distribution

Even Dispersion, Side AHU Location Targeted Airflow to Ends (Windows)

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Diameter SelectionCylindrical Series

The DuctSox system diameter is based on the airflow rate and inlet conditions at the beginning of the fabric system .

1. First, find the column with the maximum Inlet Velocity you would like to stay under considering the following guidelines .

DIA = [(cfm x 4 x 144) / (Pi x Inlet Vel .)]^0 .5

•1,000 fpm (5 .1 m/s) Maximum: Applications that are noise-sensitive•1,400 fpm (7 .1 m/s) Maximum: With Fittings•1,600 fpm (8 .1 m/s) Maximum: Straight Run•2,000 fpm (10 .2 m/s) Maximum: SkeleCore FTS (please consult the DuctSox design team)

2. Then, move down that column until you find the airflow rate that just exceeds the rate for your system .

3. And finally, move to the left in that row and your minimum DuctSox diameter will be indicated in-line with your rate .

4. If the required diameter is too large for the space, consider splitting the airflow into multiple runs .

1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s 2000 fpm 10.2 m/sinches mm CFM L/sec CFM L/sec CFM L/sec CFM L/sec CFM L/sec

8 203 349 165 419 198 489 231 559 264 698 33010 254 545 257 654 309 764 360 873 412 1091 51512 305 785 371 942 445 1100 519 1257 593 1571 74114 356 1069 505 1283 605 1497 706 1710 807 2138 100916 406 1396 659 1676 791 1955 923 2234 1054 2793 131818 457 1767 834 2121 1001 2474 1168 2827 1335 3534 166820 508 2182 1030 2618 1236 3054 1442 3491 1648 4363 205922 559 2640 1246 3168 1495 3696 1744 4224 1994 5280 249224 610 3142 1483 3770 1779 4398 2076 5027 2373 6283 296626 660 3687 1740 4424 2088 5162 2436 5899 2784 7374 348128 711 4276 2018 5131 2422 5986 2826 6842 3229 8552 403730 762 4909 2317 5890 2780 6872 3244 7854 3707 9817 463432 813 5585 2636 6702 3163 7819 3691 8936 4218 11170 527234 864 6305 2976 7566 3571 8827 4166 10088 4762 12610 595236 914 7069 3336 8482 4004 9896 4671 11310 5338 14137 667338 965 7876 3717 9451 4461 11026 5204 12601 5948 15752 743540 1016 8727 4119 10472 4943 12217 5767 13963 6590 17453 823842 1067 9621 4541 11545 5449 13470 6358 15394 7266 19242 908244 1118 10559 4984 12671 5981 14783 6978 16895 7974 21118 996846 1168 11541 5447 13849 6537 16157 7626 18466 8716 23082 1089548 1219 12566 5931 15080 7118 17593 8304 20106 9490 25133 1186350 1270 13635 6436 16362 7723 19090 9010 21817 10297 27271 1287252 1321 14748 6961 17698 8353 20647 9745 23597 11138 29496 1392254 1372 15904 7507 19085 9008 22266 10510 25447 12011 31809 1501456 1422 17104 8073 20525 9688 23946 11302 27367 12917 34208 1614658 1473 18348 8660 22017 10392 25687 12124 29356 13856 36696 1732060 1524 19635 9268 23562 11121 27489 12975 31416 14828 39270 1853562 1575 20966 9896 25159 11875 29352 13854 33545 15833 41932 1979264 1626 22340 10545 26808 12653 31276 14762 35744 16871 44680 2108966 1676 23758 11214 28510 13457 33262 15699 38013 17942 47517 2242868 1727 25220 11904 30264 14285 35308 16665 40352 19046 50440 2380870 1778 26725 12614 32070 15137 37415 17660 42761 20183 53451 2522972 1829 28274 13345 33929 16015 39584 18684 45239 21353 56549 2669174 1880 29867 14097 35840 16917 41814 19736 47787 22556 59734 2819476 1930 31503 14870 37804 17843 44104 20817 50405 23791 63006 2973978 1981 33183 15662 39820 18795 46456 21927 53093 25060 66366 3132580 2032 34907 16476 41888 19771 48869 23066 55851 26361 69813 3295282 2083 36674 17310 44008 20772 51343 24234 58678 27696 73347 3462084 2134 38485 18165 46181 21798 53878 25431 61575 29064 76969 36329

Inlet VelocityDiameter

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Diameter SelectionD-Shape Series - End Inlet

Choosing D-Shape Inlet and system diameters are slightly different than standard Cylindrical DuctSox .

1. Select Inlet configuration: End Inlet or Top Inlet (for Top Inlets continue on the next page)

2. Determine the airflow rate through the End Inlet .

3. Use Table below to determine Inlet diameter as a round cross section (not as a “D” cross-section) .

a) First, find the column with the maximum Inlet Velocity you would like to stay under considering the following guidelines .

•1,000fpm(5.1m/s)Maximum:Applicationsthatarenoise-sensitive•1,400fpm(7.1m/s)Maximum:SystemwithFittings•1,600fpm(8.1m/s)Maximum:StraightRun

b) Then, move down that column until you find the airflow rate that just exceeds the rate for your system .

c) And finally, move to the left in that row and your D-Shape size (d= diameter, r= radius)diameter will be indicated in-line with your rate .

4. If a Round to D-Shape Transition is required, use the table below to determine the round diameter . By knowing the required End Inlet D-Shape diameter, move to the left in the Table to find the corresponding Round Inlet Transition diameter .

inches mm inches mm 1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s(d x r) (d x r) CFM L/s CFM L/s CFM L/s CFM L/s

6 152 8 x 4 203 x 102 175 82 209 99 244 115 279 132

8 203 10 x 5 254 x 127 273 129 327 154 382 180 436 206

8 203 12 x 6 305 x 152 349 165 419 198 488 230 558 263

10 254 14 x 7 356 x 178 535 252 641 303 748 353 855 404

12 305 16 x 8 406 x 203 698 330 838 395 977 461 1117 527

12 305 18 x 9 457 x 229 785 371 942 445 1099 519 1257 593

14 356 20 x 10 508 x 254 1069 505 1283 606 1497 707 1710 807

16 406 22 x 11 559 x 279 1320 623 1584 748 1848 872 2112 997

18 457 24 x 12 610 x 305 1571 741 1885 890 2199 1038 2513 1186

18 457 26 x 13 660 x 330 1768 834 2120 1001 2474 1168 2828 1335

20 508 28 x 14 711 x 356 2138 1009 2566 1211 2993 1413 3421 1615

22 559 30 x 15 762 x 381 2454 1158 2945 1390 3436 1622 3927 1854

22 559 32 x 16 813 x 406 2639 1246 3168 1495 3695 1744 4225 1994

24 610 34 x 17 864 x 432 3142 1483 3770 1779 4399 2076 5025 2372

26 660 36 x 18 914 x 457 3534 1668 4241 2002 4948 2335 5655 2669

26 660 38 x 19 965 x 483 3686 1740 4423 2088 5162 2436 5900 2785

28 711 40 x 20 1016 x 508 4278 2019 5130 2421 5985 2825 6842 3229

Transition Dia. Size

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Diameter SelectionD-Shape Series - Top Inlet

Choosing D-Shape Inlet and system diameters are slightly different than standard Cylindrical DuctSox .

1. Select Inlet configuration: End Inlet or Top Inlet (for End Inlets see previous page)

2. Determine the airflow rate through the Top Inlet . (If there could be multiple Top Inlets feeding a D-Shape Series DuctSox system or if the Top Inlet is not in the middle of the length of the system, please contact the DuctSox factory design team .)

3. Use the table below to determine Inlet diameter .

a) First, find the column noting the maximum Inlet Velocity for Top Inlet systems - 1,000 fpm (5 .1 m/s) Maximum


c) And finally, move to the left in that row and your minimum D-Shape diameter will be indicated in-line with your rate .

4. Use table below to determine the minimum Top Inlet diameter knowing the required D-Shape size .

inches mm inches mm 1000 fpm 5.1 m/s

(d x r) (d x r) CFM L/s

6 152 8 x 4 203 x 102 196 93

6 152 10 x 5 254 x 127 196 93

8 203 12 x 6 305 x 152 349 165

10 254 14 x 7 356 x 178 545 257

12 305 16 x 8 406 x 203 785 371

14 356 18 x 9 457 x 229 1069 505

16 406 20 x 10 508 x 254 1396 659

18 457 22 x 11 559 x 279 1767 834

20 508 24 x 12 610 x 305 2182 1030

22 559 26 x 13 660 x 330 2640 1246

24 610 28 x 14 711 x 356 3142 1483

26 660 30 x 15 762 x 381 3687 1740

28 711 32 x 16 813 x 406 4276 2018

30 762 34 x 17 864 x 432 4909 2317

32 813 36 x 18 914 x 457 5585 2636

34 864 38 x 19 965 x 483 6305 2976

36 914 40 x 20 1016 x 508 7069 3336

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Diameter SelectionQuarter-Round Series - End Inlet

Choosing Quarter-Round Inlet and system diameters are slightly different than standard Cylindrical DuctSox .

1. Select Inlet configuration: End Inlet or Top/Back Inlet (for Top/Back Inlets continue on the next page)

2. Determine the airflow rate through the End Inlet .

3. Use the table below to determine Inlet diameter as a round cross-section (not as a Quarter-Round cross-section) .

a) First, find the column with the maximum Inlet Velocity you would like to stay underconsidering the following guidelines .

•1,000 fpm (5 .1 m/s) Maximum: Applications that are noise-sensitive•1,400fpm(7.1m/s)Maximum:SystemwithFittings•1,600fpm(8.1m/s)Maximum:StraightRun


c) And finally, move to the left in that row and your minimum Quarter-Round size (quarter circle cross-section) will be indicated in-line with your rate .

4. Use table below to determine the minimum End Inlet diameter knowing the required Quarter-Round size .

inches mm inches mm 1000 fpm 5.1 m/s 1200 fpm 6.1 m/s 1400 fpm 7.1 m/s 1600 fpm 8.1 m/s

(r x r) (r x r) CFM L/s CFM L/s CFM L/s CFM L/s

8 203 8 x 8 203 x 203 87 41 105 49 122 58 140 66

10 254 10 x 10 254 x 254 136 64 164 77 191 90 218 103

12 305 12 x 12 305 x 305 196 93 236 111 275 130 314 148

14 356 14 x 14 356 x 356 267 126 321 151 374 177 428 202

16 406 16 x 16 406 x 406 349 165 419 198 489 231 559 264

18 457 18 x 18 457 x 457 442 209 530 250 619 292 707 334

20 508 20 x 20 508 x 508 545 257 654 309 764 360 873 412

22 559 22 x 22 559 x 559 660 311 792 374 924 436 1056 498

24 610 24 x 24 610 x 610 785 371 942 445 1100 519 1257 593

26 660 26 x 26 660 x 660 922 435 1106 522 1290 609 1475 696

28 711 28 x 28 711 x 711 1069 505 1283 605 1497 706 1710 807

30 762 30 x 30 762 x 762 1227 579 1473 695 1718 811 1963 927

32 813 32 x 32 813 x 813 1396 659 1676 791 1955 923 2234 1054

34 864 34 x 34 864 x 864 1576 744 1892 893 2207 1042 2522 1190

36 914 36 x 36 914 x 914 1767 834 2121 1001 2474 1168 2827 1335

38 965 38 x 38 965 x 965 1969 929 2363 1115 2757 1301 3150 1487

40 1016 40 x 40 1016 x 1016 2182 1030 2618 1236 3054 1442 3491 1648

Quarter-RoundEnd Inlet Maximum Inlet VelocitySizeDiameter

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Diameter SelectionQuarter-Round Series - Top/Back Inlet

Choosing Quarter-Round Inlet and system diameters are slightly different than standard Cylindrical DuctSox .

1. Select Inlet configuration: End Inlet or Top/Back Inlet (for End Inlets see previous page)

2. Determine the airflow rate through each Top/Back Inlet . (If there will be multiple Top/Back Inlets feeding a Quarter-Round Series DuctSox system, or if the Top/Back is not in the middle of the length of the system, please contact the DuctSox factory design team .)

3. Use the table below to determine Inlet diameter .

a) First, find the column noting the maximum Inlet Velocity for Top Inlet systems - 1,000 fpm (5 .1 m/s) Maximum


c) And finally, move to the left in that row and your minimum Quarter-Round size will be indicated in-line with your rate .

4. Use the table below to determine the minimum Top/Back Inlet diameter knowing the required Quarter-Round size .

inches mm inches mm 1000 fpm 5.1 m/s

(r x r) (r x r) CFM L/s

6 152 8 x 8 203 x 203 175 83

6 152 10 x 10 254 x 254 196 93

8 203 12 x 12 305 x 305 349 165

10 254 14 x 14 356 x 356 535 253

12 305 16 x 16 406 x 406 698 329

14 356 18 x 18 457 x 457 844 398

16 406 20 x 20 508 x 508 1091 515

18 457 22 x 22 559 x 559 1320 623

20 508 24 x 24 610 x 610 1571 742

22 559 26 x 26 660 x 660 1844 870

24 610 28 x 28 711 x 711 2138 1009

26 660 30 x 30 762 x 762 2454 1158

28 711 32 x 32 813 x 813 2793 1318

30 762 34 x 34 864 x 864 3153 1488

32 813 36 x 36 914 x 914 3534 1668

34 864 38 x 38 965 x 965 3938 1859

36 914 40 x 40 1016 x 1016 4363 2059

MaximumTop/Back InletDiameter

Quarter-RoundSize Inlet Velocity

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ZippersStraight lengths and fittings are connected together with a zipper . The zipper is affixed with the start/stop located at the top center and each includes a 2”(51mm) fabric overlap to conceal the zipper .

SkeleCore FTS zippers are located every 21 ft (6400 mm) or less . If a straight run is 60 ft (18288 mm), the first two sections would be 21 ft (6400 mm) and the last would be 18 ft (5486 mm) .

SkeleCore IHS zippers are located every 20 ft (6096 mm) or less . If a straight run is 58 ft (17678 mm), the first two sections would be 20 ft (6096 mm) and the last would be 18 ft (5486 mm) .

The following table indicates maximum sectional length of a standard straight run . Longer sections are broken into equal lengths: 60 ft (18 .3m) of 36 in (914mm) diameter would be constructed of two 30 ft (9 .1m) long sections .

To allow for variability in system layout, we offer many common fittings in fabric with simple zipper connections .

inches mm inches mm inches mm ft m6 152 15 4.6

8-10 203-254 20 6.112-16 305-406 8-18 203-457 16-36 406-914 25 7.618-20 457-508 20-24 508-610 40-48 1016-1220 30 9.122-26 559-660 26-32 660-813 52-64 1320-1626 35 10.728-40 711-1016 34+ 864+ 68+ 1728+ 40 12.242-44 1067-1118 35 10.746-50 1168-1270 30 9.152-56 1321-1422 25 7.658-60 1473-1524 20 6.162+ 1575+ 15 4.6

Diameter Diameter Max LengthCylindrical D-Shape

DiameterQuarter-Round

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FittingsNot every application is a straight run of DuctSox . To accommodate this, we offer a variety of standard fittings . We also offer custom fitting configurations .

Radius ElbowsThe standard centerline radius of an elbow is1 .5x diameter . The number of gores and size depends on the angle of the elbow . Custom elbows are available upon request . Elbows can also be rotated for offsets/elevation changes to accommodate more complicated systems .

TransitionsSimple reducing transitions are available in Concentric, Flat-on-Top, or Flat-on-Bottom configurations . Each transition fitting includes a zipper on each end . Their length ranges between 12-36” (305-914 mm) (based on the change in diameter) .

Take-Off (Ts) and CrossesEfficiency take-off fittings direct air to areas perpendicular to the main run (shown below in Flat-on-Top, Flat-on-Bottom and Concentric options) . The branch duct requires a zipper for attachment . For better airflow management, branch ducts should be positioned at least 1x the outlet diameter from the endcaps . For example, a 24” (610 mm) branch would be centered on a measurement 24” (610 mm) from the endcap (in this case the edge of the branch would be 12” (305 mm) from the endcap) .

RADIUS ELBOWS

TRANSITIONS

TAKE-OFFS (Ts)

CROSSES

30º

Flat-on-Top

Flat-on-Top

Flat-on-Top

60º

Flat-on-Bottom

Flat-on-Bottom

Flat-on-Bottom

45º

Concentric

Concentric

Concentric

90º

Round to D-Shape

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Air Flow and PressureInternal Textile Air Dispersion System PressureMetal ducts are commonly designed with either the Equal Friction or Static Regain method . Extended Plenum concept is the best approach for textile air dispersion systems that include uniform duct diameters and evenly dispersed airflow .

This method best models pressure and air dispersion within textile air dispersion systems due to the constant diameter of the duct size . Using a constant duct diameter assists in installation and aesthetics . Proper design methods can allow the designer to model pressure at any point within a textile air dispersion system . The design process can be simplified by breaking down airflow and air pressure into three components: Inlet Static Pressure, Static Pressure Regain, and Friction Loss

Inlet Static Pressure (ISP)The largest and most critical component to the operating pressure of a textile air dispersion system is the InletStatic Pressure (ISP) . This is the static pressure available at the inlet of the dispersion system or metal-to-fabricconnection . In most cases, the ISP is not the External Static Pressure of the fan or unit due to fittings and duct between the textile air dispersion system and the outlet of the fan or unit .

Static Pressure Regain (SPR)As air is being dispersed to the space, phenomenon of static regain occurs along the entire length of thedispersion system . As air is dipersed, the velocity within the duct decreases and Velocity Pressure (VP) decreases . The VP is kinetic energy and slowly changes form to a useful potential energy, or SPR, as the remaining air travels down the constant diameter duct . SPR is equal to the VP at the inlet:

SPR = Inlet Velocity Pressure = ( Inlet Velocity / 4005 )2 Inlet Velocity is fpm and SPR is inches w .g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-P

SPR = Inlet Velocity Pressure = ( Inlet Velocity / 1 .291 )2 Inlet Velocity is m/s and SPR is Pa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SI

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Friction Loss (FL)

Similar to metal ducts, textile air dispersion systems have frictional loss (FL) along straight sections of duct and fittings . The losses, however, are much less than a traditional metal layout with duct diameters that decrease with reducing transitions due to lower overall duct air velocitites . FL is directly related to the duct diameter and duct velocity . As the air is dispersed along the constant diameter duct length, the duct velocity decreases and thus the FL decreases .

Straight Friction Loss To estimate FL of an incremental section of a textile air dispersion system that is uniformly dispersing

100% of the inlet air throughout its length, use the following steps:

1. Find the FL of the straight section of duct with 100% of airflow passing through the entire length . An air duct calculator (Ductulator), the ASHRAE Duct Fitting Database, or commonly used equations for metal duct in the ASHRAE Fundamentals handbook, chapter 21: Duct Design, can be used . [Textile Air Dispersion System Absolute Roughness e = 0 .0004 ft (0 .11 mm), Textile Air Dispersion system with SkeleCore FTS internal frame Absolute Roughness e = 0 .0056 ft (1 .69 mm)]

2. Multiply the calculated FL for a duct with 100% conveyance by a factor of 0 .35 to find the FL for a system that disperses100% of the incoming air . 35% of the FL is a close approximation to convert the FL of a duct with zero air dispersion to a duct that has 100% uniform air dispersion .

•For example, a 24” (610 mm) diameter duct conveying 5025 cfm (2371 L/s) of air will have a friction loss of 0 .06” w .g . (15 Pa) per 50’ (15m) of duct . A textile air dispersion system that is equally dispersing all of the air over 50’ (15m) would have a friction loss of approximately 0 .021” w .g . (5Pa) . That same dispersion system with the SkeleCore FTS has a friction loss of approximately 0 .035” w .g . (9Pa) .

Fitting Friction Loss The Friction Loss of DuctSox fabric fittings can be best estimated by selecting the closest match of metal fittings from the ASHRAE Duct Fitting Database and using that pressure loss .

The AFD Friction Loss, when used to balance out the effects of static regain, needs to be estimated by multiplying the SPR by 0 .5 . So, if your system being designed has an Inlet Velocity of 1400 fpm (7 .1 m/s), then the SPR is equal to (1400/4005)2 = 0 .12” w .g . [(7 .1/1 .291)2 = 30 Pa] . The estimated FL for the AFD is then 0 .12/2 = 0 .06” w .g . (30/2 =15 Pa)

(Typically, systems should not include more than two AFDs in sequence to an endcap .)

AFD devices come standard with Sedona-Xm and TufTex Systems .The AFD is an option with other fabrics .

All AFD’s are pre-set from the factory and should not require field balancing . The inlet AFD can be adjusted for airflow turbulence .

MiddleBalances static regain . All systems with an intermediate zipper over 40' (12,192mm) and >1,200 FPM (6 .01m/s) inlet velocity .

InletCinch to use as flow straightener or balance airflow . All systems with >1,200 FPM (6 .01m/s) inlet velocity .

No PopReduces inflation pop . Single AFD located in last 30% of long run, included for all systems over 100' (30,480mm) and over 5,000 CFM (2,360L/s) .

PlenumDirect airflow into branch take-offs where velocity is over 1,200 FPM (6 .01m/s) .

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Textile Air Dispersion System Design Pressure Calculation

The Average Pressure (AP) is the average static pressure from inlet to endcap and is utilized for calculatingthe air dispersion through fabric, linear vents, nozzles and orifices . The AP of a fabric duct with equal air dispersion can be approximated by the equation:

AP = ISP + .65 * (VP – FL)

If the ISP and SPR are added and FL subtracted, the resulting number will be the accumulated static pressureat the endcap . In most cases, the maximum static pressure of the system:

Endcap SP = Maximum SP = ISP + SPR - FL

Adjustable Flow Device (AFD)

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FabricAir Porous FabricAir passes through the fabric and is controlled by the fabric weave and internal static pressure . This results in air velocities on the surface of the product from 1 - 200 FPM ( .005 - 1 .016 m/s) . This option is most commonly an alternative to exposed double wall duct . Ideal for cooling only, food processing, displacement ventilation, or air sensitive environments .

Note: Dirt from poorly filtered supply air may migrate through weave of air porous fabrics eventually

discoloring light color fabrics . Filtration efficiency of 50% or greater plus a regular maintenance plan will

reduce effects .

Non-Porous FabricNo air passes through the fabric weave . This option is most commonly an alternate to exposed single wall duct/diffusers .

Note: Dirt does not pass through and stain non-porous fabric .

BenefitsNo condensationReduced dust on topNo heat gain/lossReduced air throw

Limitations Long lengths may disperse too much airflow through fabric

BenefitsUsed with Nozzles,Linear Vents, and Orifices

Limitations Dust on Top Risk of Condensation

Fabric AirflowIf the design includes a porous fabric, this airflow can be calculated using the following equations:

QFabric = FP x SA x (AP/ .5) (CFM)

FP = Fabric Porosity (rated) (CFM/ft2)

SA = Surface Area (all fabric) (ft2)

AP = Average Pressure (inch w .g .)

QFabric = FP x SA x (AP/124 .42) (L/s)

FP = Fabric Porosity (rated) ((L/s)/m2)

SA = Surface Area (all fabric) (m2)

AP = Average Pressure (Pa)

(CFM/ft2 @ 0.5” w.g) ((L/s)/m2 @ 124.4 Pa)

Sedona-Xm 2 10.2TufTex 0 0Verona 2 10.2

2 10.2

DuraTex 0 0Microbe-X 6, 13, 29 30.5, 66, 147

Stat-X 2.5 12.7

Rx 29, 55, 100, 165147.3, 279.4, 508, 838.2

UFSox

Porosity (FP)Fabric

2 10.2

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Orientation from inlet of DuctSox withairflow hitting you in the back of the head

OrientationThrow: Directional AirflowBecause each DuctSox system is 100% custom made, there is unlimited flexibility in designing the locations of the vents in nozzles, or orifices . Some of the options when designing outlet orientations are:

4&8, 5&7, and 6 o’clockPrimarily chosen for applications with heating and/or cooling, but can also be used for ventilating . These orientations direct the exiting air downward and/or outward from the DuctSox . Throw requirements can be critical in these locations because the air is delivered more directly towards the occupied space . To calculate throw, use the distance between the bottom of the DuctSox System and the distance above the floor using the following equations:

4&8 o’clock: (Height – 6ft(1 .83m)) x 2 .00 = Throw required5&7 o’clock: (Height – 6ft(1 .83m)) x 1 .16 = Throw required

6 o’clock: (Height – 6ft(1 .83m)) x 1 .00 = Throw required

Note: Additional unique outlet orientations and patterns are available upon request . Please contact the DuctSox factory design team

11&1, 10&2, and 3&9 o’clockPrimarily chosen for only cooling or ventilating, these orientations either direct the exiting air upward and/or outward from the DuctSox . Throw requirements focus on reaching the exterior walls or filling the gaps between parallel runs .

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NozzlesNozzle DesignSelect Nozzle size and characteristics based on throw that best fits the environment .

2” Adjustable Nozzle

Adjustable Nozzles can be adjusted to several positions pointing airflow in a desired location, or can be completely closed off . The benefits include:

•Provide jet-type airflow and are a common choice for spot cooling, heating, or ventilating . •Beneficial for controlling condensation issues . •Type, location, and quantity based on airflow requirements . •Ideal for many applications, including aquatics (direct air towards corner windows), industrial

(spot cooling), retail (direct air away from hanging signs), or supermarkets (direct air away from open freezer cases) .

150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/s

in w.g Pa CFM L/s ft m ft m ft m0.25 62.21 23.28 10.99 10 3.0 15 4.6 30 9.10.50 124.42 32.92 15.54 14 4.3 21 6.4 43 13.10.75 186.63 40.32 19.03 17 5.2 26 7.9 52 15.81.00 248.84 46.56 21.98 20 6.1 30 9.1 61 18.61.25 311.05 52.06 24.57 23 7.0 34 10.4 68 20.7

Average Pressure

AirflowThrow

150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/sin w.g Pa CFM L/s ft m ft m ft m0.25 62.21 4.90 2.31 5 1.5 7 2.1 14 4.30.50 124.42 6.90 3.26 7 2.1 10 3.0 20 6.10.75 186.63 8.50 4.01 8 2.4 12 3.7 24 7.31.00 248.84 9.70 4.58 9 2.7 14 4.3 28 8.51.25 311.05 10.90 5.14 10 3.0 15 4.6 31 9.4

Average Pressure

AirflowThrow

Directional airflow or closed . Direct air as needed to control condensation

issues or improve employee comfort .

Adjustability of Throw360 degree rotation

10 different angle settings, including a closed setting

50 (0.25) VelocityFPM (m/s)



80 (24.4)

70 (21.4)

60 (18.3)

50 (15.3)

40 (12.2)

30 (9.2)

20 (6.1)

10 (3.1)

00.25(62)

0.50(124)

0.75(187)

1.00(249)

1.25(311)

Dis

tanc

e FT

(m)

Static Pressure w.g. (Pa)

Throw Values for a Single Adjustable Nozzle

Air D

ispersion

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29

Fixed Nozzles

The benefits include:

•Provide jet-type airflow and are a common choice for spot cooling, heating, or ventilating . •Provide a constant flow of air or can be closed off .•Type, location, and quantity based on airflow requirements . •Aftermarket plugs are available to cap off the airflow .

150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/s

in w.g Pa CFM L/s ft m ft m ft m0.25 62.21 23.28 10.99 10 3.0 15 4.6 30 9.10.50 124.42 32.92 15.54 14 4.3 21 6.4 43 13.10.75 186.63 40.32 19.03 17 5.2 26 7.9 52 15.81.00 248.84 46.56 21.98 20 6.1 30 9.1 61 18.61.25 311.05 52.06 24.57 23 7.0 34 10.4 68 20.7

Average Pressure

AirflowThrow

150 FPM 0.76 m/s 100 FPM 0.51 m/s 50 FPM 0.25 m/sin w.g Pa CFM L/s ft m ft m ft m0.25 62.21 4.90 2.31 5 1.5 7 2.1 14 4.30.50 124.42 6.90 3.26 7 2.1 10 3.0 20 6.10.75 186.63 8.50 4.01 8 2.4 12 3.7 24 7.31.00 248.84 9.70 4.58 9 2.7 14 4.3 28 8.51.25 311.05 10.90 5.14 10 3.0 15 4.6 31 9.4

Average Pressure

AirflowThrow

Provides constant airflow or cap to close .

Side View Top View

10 (3.1)

20 (6.1)

30 (9.2)

0.25(62)

0.50(124)

0.75(187)

1.00(249)

25 (7.6)

15 (4.6)

5 (1.5)

0

Static Pressure w.g. (Pa)

Dis

tanc

e FT

(m)




Throw Values for a Single Fixed Nozzle

Air

Dis

pers

ion

3

30

OrificesOrifice DesignSelect orifice size and orientation based on throw that best fits the environment . Lower pressures result in improved efficiency, lower noise, and extended service life .

To calculate the total number of orifices, divide airflow volume by the airflow per orifice (listed CFM) .

NOTE: SG Diffusers for Sedona-Xm and Verona are only available in 2” (51mm) (SG2) and 3” (76mm) (SG3) diameters .

Orifice SpacingUnless customized spacing is required, the orifice spacing is determined by evenly spacing the orifices along the length of the DuctSox system . All systems include a standard 4 ft (1 .23m) void (no orifices) near the beginning .

If there are too many orifices to fit within the length, then an alternating orifice pattern may have to be chosen .

150 FPM 0.8 m/s 100 FPM 0.5 m/s 50 FPM 0.3 m/sinches mm in w.g Pa CFM/ft. (L/s)/m ft m ft m ft m

0.25 62 1.64 2.54 3 0.9 4 1.2 8 2.40.5 124 2.32 3.59 4 1.2 6 1.8 11 3.40.75 187 2.84 4.40 5 1.5 7 2.1 14 4.3

1 249 3.27 5.06 5 1.5 8 2.4 16 4.91.25 311 3.67 5.68 6 1.8 9 2.7 18 5.50.25 62 6.56 10.16 5 1.5 8 2.4 16 4.90.5 124 9.28 14.37 8 2.4 11 3.4 23 7.00.75 187 11.37 17.61 9 2.7 14 4.3 28 8.5

1 249 13.12 20.32 11 3.4 16 4.9 32 9.81.25 311 14.67 22.72 12 3.7 18 5.5 36 11.0

2 0.25 62 26.25 40.65 11 3.4 16 4.9 32 9.80.5 124 37.12 57.48 15 4.6 23 7.0 45 13.7

0.75 187 45.46 70.40 19 5.8 28 8.5 56 17.11 249 52.49 81.28 21 6.4 32 9.8 64 19.5

1.25 311 58.69 90.88 24 7.3 36 11.0 72 21.90.25 62 41.01 63.51 13 4.0 20 6.1 40 12.20.5 124 58 89.82 19 5.8 28 8.5 57 17.40.75 187 71.03 109.99 23 7.0 35 10.7 69 21.0

1 249 82.02 127.01 27 8.2 40 12.2 80 24.41.25 311 91.7 142.00 30 9.1 45 13.7 90 27.4

3 0.25 62 59.06 91.46 16 4.9 24 7.3 48 14.60.5 124 83.52 129.34 23 7.0 34 10.4 68 20.70.75 187 102.29 158.40 28 8.5 42 12.8 83 25.3

1 249 118.11 182.90 32 9.8 48 14.6 96 29.31.25 311 132.06 204.50 36 11.0 54 16.5 108 32.90.25 62 104.99 162.58 21 6.4 32 9.8 64 19.50.5 124 148.48 229.93 30 9.1 45 13.7 91 27.70.75 187 181.85 281.60 37 11.3 56 17.1 111 33.8

1 249 209.98 325.17 43 13.1 64 19.5 128 39.01.25 311 234.76 363.54 48 14.6 72 21.9 144 43.90.25 62 164.05 254.04 27 8.2 40 12.2 80 24.40.5 124 232 359.27 38 11.6 57 17.4 113 34.40.75 187 284.14 440.01 46 14.0 69 21.0 139 42.4

1 249 328.09 508.07 53 16.2 80 24.4 160 48.81.25 311 366.82 568.04 60 18.3 90 27.4 179 54.6

127

101.6

63.5

25.4

76.2

50.8

Orifice Size AP Airflow Terminal Velocity

12.7

5

0.5

1

2.5

4

SG3

SG2

Air D

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31

Linear VentsLinear Vent DesignLinear Vents were developed as a low maintenance vent option . The hole patterns grow larger as vent size increases . Available in 1 CFM/lnft (1 .55 (L/s)/m) increments for maximum accuracy .

1 . Calculate airflow through fabric(as shown on page 25)

2 . Calculate total vent size (TVS)

3 . Select vent sizes (VS + VS = TVS)

4 . Specify vent orientation

Example:TVS = 100 cfm/ft (154.8(L/s)/m)

Vent Sizes:40 + 40 + 20 = 100 cfm/ft

(61.9 +61.9+ 31.0= 154.8(L/s)/m)

Key: Length (FT)(m) AP (inch w.g.)(Pa) Qvent (CFM)(L/s)

150 FPM 0.8 m/s 100 FPM 0.5 m/s 50 FPM 0.3 m/sCFM/ft (L/s)/m in w.g. Pa CFM/ft (L/s)/m ft m ft m ft m

0.25 62 3.5 5.42 4 1.2 5 1.5 9 2.70.5 124 5 7.74 5 1.5 8 2.4 12 3.70.75 187 6.1 9.45 6 1.8 9 2.7 15 4.6

1 249 7.1 10.99 7 2.1 11 3.4 17 5.20.25 62 7.1 10.99 6 1.8 9 2.7 15 4.60.5 124 10 15.49 9 2.7 13 4.0 21 6.40.75 187 12.2 18.89 11 3.4 16 4.9 26 7.9

1 249 14.1 21.83 12 3.7 19 5.8 30 9.10.25 62 10.6 16.41 8 2.4 12 3.7 18 5.50.5 124 15 23.23 11 3.4 16 4.9 26 7.90.75 187 18.4 28.49 13 4.0 20 6.1 32 9.8

1 249 21.2 32.83 15 4.6 23 7.0 37 11.30.25 62 14.1 21.83 9 2.7 14 4.3 22 6.70.5 124 20 30.97 13 4.0 20 6.1 31 9.40.75 187 24.5 37.94 16 4.9 24 7.3 38 11.6

1 249 28.3 43.82 18 5.5 28 8.5 44 13.40.25 62 21.2 32.83 12 3.7 18 5.5 29 8.80.5 124 30 46.46 17 5.2 26 7.9 41 12.50.75 187 36.7 56.83 21 6.4 31 9.4 50 15.2

1 249 42.4 65.66 24 7.3 36 11.0 58 17.70.25 62 28.3 43.82 15 4.6 22 6.7 36 11.00.5 124 40 61.94 21 6.4 31 9.4 50 15.20.75 187 49 75.88 26 7.9 39 11.9 62 18.9

1 249 56.6 87.65 30 9.1 45 13.7 71 21.60.25 62 35.4 54.82 18 5.5 26 7.9 42 12.80.5 124 50 77.43 24 7.3 33 10.1 60 18.30.75 187 61.2 94.77 30 9.1 46 14.0 73 22.3

1 249 70.7 109.48 35 10.7 53 16.2 84 25.60.25 62 42.4 65.66 19 5.8 28 8.5 45 13.70.5 124 60 92.91 26 7.9 39 11.9 63 19.20.75 187 73.5 113.82 32 9.8 48 14.6 77 23.5

1 249 84.9 131.47 37 11.3 56 17.1 89 27.1

15

10

Vent Size

77.4

61.9

46.5

31.0

23.2

7.7

15.5

AP Airflow Terminal Velocity

5

60

50

40

30

20

92.9

Qvent = QTotal - QFabric

I-P version:

TVS = (Length) x √(AP/0.5)

SI version:

TVS = (Length) x √(AP/124.42)

I-P and SI version: TVS = (VS1+VS2+...)

QVent

QVent

Fabr

ic

32

Fabric Options

4Microbe-X, White

(Custom colors available)Stat-X, White

Stat-X, Light Blue Rx, White

Standard Fabric ColorsDuctSox offers seven standard colors for Sedona-Xm, TufTex, and Verona . DuraTex is also available in these colors except green and red . Custom Colors and Patterns are available on some fabrics, but may require a premium charge and additional lead time .

Specialty Fabric ColorsThese fabrics are only available in specific color types and patterns .

NOTE: Colors may vary based on texture of fabric or dye lot .

Black Silver White Tan Blue

Green Red Custom Colors Patterns

Fabric Type

Specifications Colors Other

Sedona-XmTM Weave: Fire Retardant Polyester, Filament/Filament Twill 55% Recycled ContentWeight: 6.8 oz/yd2 (231g/m2)Porosity: 2 CFM/ft2 @ 0.5" w.g. (10.2L/s/m2 @ 125Pa)Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518

• Air Porous • Premium Fabric• Active Antimicrobial• Linear Vents, Nozzles,

or Orifices

TufTexTM Weave: Fire Retardant Polyester, Plain Weave, CoatedWeight: 8.2 oz/yd2 (278g/m2)Porosity: NoneClassified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518

B • Non-Porous• Premium Fabric• Linear Vents or Orifices

VeronaTM Weave: Fire Retardant Polyester, Filament/Filament TwillWeight: 6.2 oz/yd2 (210g/m2)Porosity: 2 CFM/ft2 @ 0.5" w.g. (10.2L/s/m2 @ 125Pa)Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; UL-C (Canada); BS 5867 Part 2, 1980; GB8624-2006

• Air Porous• Commercial Fabric• Linear Vents, Nozzles,

or Orifices

DuraTexTM Weave: Fire Retardant Polyester, Plain Weave, CoatedWeight: 5.5 oz/yd2 (186g/m2)Porosity: NoneClassified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; also available (by request only) to meet BS 5867 Part 2, 1980

• Non-Porous• Commercial Fabric• Linear Vents, Nozzles,

or Orifices

Microbe-XTM Weave: Fire Retardant Polyester, Filament/Filament TwillWeight: 6 & 13: 6.9 oz/yd2 (234g/m2)

29: 6.2 oz/yd2 (210g/m2)Porosity: 6, 13, 29 CFM/ft2 @ 0.5" w.g. (30.5, 66, 147L/s/m2 @ 125Pa)Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518

• Air Porous• Specialty Fabric• Non-Leaching, Permanent

Antimicrobial• Linear Vents

Stat-XTM Weave: Filament Polyester with Interwoven ESD YarnsWeight: 2.9 oz/yd2 (98g/m2)Porosity: 2.5 CFM/ft2 @ 0.5" w.g. (12.7L/s/m2 @ 125Pa)Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A and UL 2518; UL-C (Canada)

• Air Porous• Static Dissipative• Specialty Fabric• Linear Vents or Nozzles

RxTMFabric: Rx200TM, Rx100TM, Rx50TM, Rx25TM

Weave: Fire Retardant Polyester, Filament, Non-LintingUp to 50% Recycled Content

Weight: Rx200: 5.4 oz/yd2 (183g/m2) Rx100: 5.5 oz/yd2 (186g/m2) Rx50: 6.3 oz/yd2 (214g/m2) RX25: 7.1 oz/yd2 (241g/m2)Classified by Underwriters Laboratories in accordance with the requirements of NFPA 90A; Rx50 and Rx25 are also classified by Underwriters Laboratories in accordance with the requirements of UL 2518

• Air Porous• Specialty Fabric• LabSox: D-Fuser or

Traditional Models• Active Antimicrobial• Surround Flow or

Select Flow• Linear Vents

Appendix

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Sample CAD DetailsThe graphical or CAD portion of design is critical to convey design intent to the construction team . More than including the layout details as shown below, adding detail drawings (right) highlights specific details of the components, airflow type and orientation, suspension type, or inlet connection . Considering these details vary by fabric, complete drawing details and specifications are available at www .ductsox .com .

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Sample Fabric Porosity Design

Series/Shape: Open ceiling = Cylindrical

Design Layout: Centrally located unit and higher open ceiling (16 ft or 4 .9m) allows for a simple layout . Diameter is selected for normal inlet velocity (<1,600)(8 .1m/s) . Diameter: 16”(406mm) at 1,433 FPM (7 .3m/s)

Air Dispersion: Fabric Porosity is selected based on the system being dedicated to cooling/refrigeration .

Inlet Static pressure is at: 0 .50” w .g . (124Pa)Airflow through fabric: 2000 CFM (944 L/s)Suggested Porosity: 13 CFM/ft2 (66(L/s)m2)Porosity: 13 CFM/ft2 (66(L/s)m2)

Fabric Selection: Microbex-X is selected due to the application being food processing .

Suspension: Considering the DuctSox will be mounted against the bottom of the truss, a one row cable suspension with Gliders was selected .

Airflow into Inlet 2000 CFM 944 L/sAirflow Dispersed 2000 CFM 944 L/s

Diameter 16 Inches 406 mm32 Feet6 Inches

Inlet Velocity 1433 fpm 7.3 m/sExit Velocity 0 fpm 0.0 m/s

Inlet Static Pressure 0.50 in w.g. 124 PaInlet Velocity Pressure 0.13 in w.g. 32 Pa

Pressure Losses 0.02 in w.g. 5 PaAverage Pressure 0.57 in w.g. 142 Pa

Maximum Pressure 0.61 in w.g. 151 Pa

Suggested Porosity 13.0 CFM/ft2 66 (L/s)/m2Porosity 13 CFM/ft2 66 (L/s)/m2

m9.9htgneL

13

Using the available “Designer,” the design steps are much simpler . Contact your local DuctSox rep to get the most current version .

Appendix

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Sample Linear Vent Design


Design Layout: Centrally located unit and higher open ceiling (22 ft or 6 .7m) allows for a simple layout . Diameter is selected for normal inlet velocity (<1,600)(8 .1m/s) . Diameter: 16”(406mm) at 1,433 FPM (7 .3m/s)

Air Dispersion: Linear Vents are selected (std .) .

Inlet Static pressure is at: 0 .50” w .g . (124 Pa) Airflow through fabric: 311 CFM (147 L/s) Airflow through vents: 1689 CFM (797 L/s) Vent detail: size 17 at 4&8 o’clock size 7 at 5&7 o’clock

Fabric Selection: Sedona-Xm is selected for extended warranty and custom color .

Suspension: Considering the DuctSox will be mounted against the bottom of the truss, a one row track suspension with Gliders was selected .


Diameter 16 Inches 406 mm32 Feet6 Inches





Fabric Porosity 2.00 CFM/ft2 10 (L/s)/m2

Fabric CFM 311 CFM 147 L/s

% of Air to Disperse 100% 100%Number of Vents 2 Vents 2 Vents

Vent CFM 1689 CFM 797 L/s

Suggested Vent Size 24 CFM/ft 38 (L/s)/m

mLength 9.9


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Sample Adjustable Nozzle Design


Design Layout: Roof mounted unit with twodrops coming into the space (as shown) .Simple straight runs: diameter is selected fornormal inlet velocity (<1,600) (8 .1m/s) .Diameter: 38” (965mm) at 1,207 FPM (6 .2m/s)

Air Dispersion: This manufacturing facilityrequired adjustable throw and mixing .

Adjustable Nozzle Series .Inlet Static pressure is at: 0 .75” w .g . (186 Pa)Airflow through fabric: 2077 CFM (980 L/s)Airflow through Nozzles: 7423 CFM (3503 L/s)Nozzle detail: 178: 2” Dia at 4 & 8 o’clock

4’ (1 .22m) void – 8 .18” (208mm) spacing

Fabric Selection: Sedona-Xm fabric is selectedas it is the premium option for, extended warranty, and available Blue color .

Suspension: Considering the DuctSox will bemounted 24 inches (610mm) below the structure, a tworow U-Track suspension with Gliders was selected .



Air Dispersion: This manufacturing facilityrequired high mixing .

Orifice Series .Inlet Static pressure is at: 0 .50” w .g . (124 Pa)Airflow through fabric: 0 CFM (0 L/s)Airflow through Orifices: 12,000 CFM (5663 L/s)Orifice detail: 74: 2” Dia at 4 & 8 o’clock 4’ (1 .22m) void – 20” (508mm) spacing

Fabric Selection: TufTex fabric is selectedas it is the premium option for extended warranty, and available Blue color .

Suspension: Considering the DuctSox will bemounted 24 inches (610mm) below the structure, a tworow track suspension with Gliders was selected .


Diameter 38 Inches 965 mm65 Feet

Inches





Fabric Porosity 2.00 CFM/ft2 10 (L/s)/m2

Fabric CFM 2077 CFM 980 (L/s)

% of Air to Disperse 100% 100%Nozzle Size 2.00 Inch Dia 51 mm Dia

CFM / Nozzle 41.73 CFM 19.69 L/sNozzle Quantity 178 178

22swoR elzzoN fo #Void to First 4 Feet 1.2 m

Nozzle Spacing 8.18 Inches 208 mm

m8.91htgneL


Appendix

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537



Air Dispersion: This manufacturing facilityrequired high mixing .

Orifice Series .Inlet Static pressure is at: 0 .50” w .g . (124 Pa)Airflow through fabric: 0 CFM (0 L/s)Airflow through Orifices: 12,000 CFM (5663 L/s)Orifice detail: 74: 2” Dia at 4 & 8 o’clock 4’ (1 .22m) void – 20” (508mm) spacing

Fabric Selection: TufTex fabric is selectedas it is the premium option for extended warranty, and available Blue color .

Suspension: Considering the DuctSox will bemounted 24 inches (610mm) below the structure, a tworow track suspension with Gliders was selected .


Diameter 38 Inches 965 mm65 Feet

Inches





Fabric Porosity 0.00 CFM/ft2 0 (L/s)/m2Fabric CFM 0 CFM 0 (L/s)m2

% of Air to Disperse 100% 100%Orifice Size 4.00 Inch Dia 102 mm Dia

CFM / Orifice 161.29 CFM 76.12 L/sOrifice Quantity 74 74

22swoR ecifirO fo #Void to First 4 Feet 1.2 m

Orifice Spacing 20.00 Inches 508.00 mm

m8.91htgneL

Sample Orifice Design


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538

Equipment SpecificationsWhen designing any DuctSox System, many different factors contribute to the final design . AHU outlet diameter, external static pressure, outlet airflow velocity, room height, length, and width, and more, all must be considered in a proper design . The following section includes suggestions to consider when designing a new system or a retrofit to existing equipment . DuctSox Systems offer a variety of suspension options and fabrics that also must be chosen to fit both the proper suspension requirements and the decor of the environment .

New ConstructionWhen designing a system for a new application or use with a new AHU unit, equipment specifications should include outlet volume and an external static pressure of at least .5” w .g (124 .42 Pa) at the DuctSox inlet . Standard centrifugal blowers typically work well for a DuctSox System . Filtering the air before it gets into the DuctSox is required with any of the permeable fabrics . While a 30% efficient filter is suggested, better filters reduce the dirt that gets into the system . Less dirt in the system means less cleaning, resulting in a longer product life .

Retro/Existing SystemsMost existing systems may include removing all of the existing metal ductwork and installing a complete DuctSox System . This approach will allow for proper sytem design and functionality .

Appendix

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539

AHU ControlsVariable Air Volume (VAV) Boxes/ControlsWith an SkeleCore FTS system, a VAV can go from 0 to 100% . For all other fabric systems, do not design under 1/4”w .g . (62 .21 Pa) . With an emphasis on indoor air quality and the continued development of motor controllers, VAV systems are common . Considering the DuctSox system operates on positive pressure, it is important to match the airflow and relative pressure curve to ensure adequate inflation on the low side . Typically, DuctSox maintains an acceptable inflated appearance down to 0 .25” w .g . (62 .21 Pa) .

Frequency Drive/Soft Start ControlsIn order to reduce the popping that may be experienced upon inflation, a solution may include the use of a frequency drive or soft start motor controller to ramp up the speed of the fans . This will greatly reduce the initial surge of airflow that causes most of the stress on a fabric DuctSox System . Adjustable Flow Devices (AFDs) can also be used to reduce the initial surge of airflow upon start up . SkeleCore FTS eliminates the need for a frequency drive and soft start controls .

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Sound DataThis report gives the results of tests conducted on 24 inch (610 mm) diameter Diffusion Type Fabric Duct . The test results include Static Pressure, Air Volume and Sound Power Level .

Test MethodThe samples were tested in accordance with the ASHRAE 70-2006 Standard “Method of Testing for Rating thePerformance of Air Outlets and Inlets”, which incorporates ADC 1062: GRD-84 Test Code for Grilles, Registers and Diffusers . Acoustical data was obtained employing a Bruel & Kjaer Pulse Digital Frequency Analyzer . The reference sound source used for this test was a calibrated Bruel & Kjaer Type 4204, which conforms to the above standard . The octave band sound power levels were plotted on graph of Noise Criteria Curves which is in the ADC Test Code . These curves are reprinted with permission from the ASHRAE Handbook and Product Directory, 1976 . Each sample was installed in the reverberation room, at the end of a 24 inch (610 mm) diameter duct system, and supplied with measured volumes of air . The static pressure was measured upstream of the sample section .

Description of Test SpecimenEach test specimen consisted of a 24 inch (610 mm) diameter, 15 foot (4572 mm) long, section of DuctSox Diffusion Type Fabric Duct supplied with an end cap .

Summary of Results

Adjustable Nozzle 420 cfm (198 L/sec)

Linear Vent 483 cfm (228 L/sec)

Fixed Nozzles 400 cfm (189 L/sec)

Orifices 445 cfm (210 L/sec)

Porous Fabric 1600 cfm (755 L/sec)

(62 Pa) (124 Pa) (187 Pa) (249 Pa)

Static Pressure

NC

Appendix

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541

Critical EnvironmentsAirflow in laboratories and other critical environments are a critical design factor as turbulent air can negatively affect research or even cause hood failure resulting in a compliancy issue . LabSox Products are designed specifically to disperse large or small airflow volumes without creating significant air movement, noise, or temperature inconsistency that may disrupt fume hood or other airflow sensitive equipment (scales, laser, microscope, etc) . LabSox are also applicable to industrial or commercial kitchen applications .

To accomplish these airflow patterns, the highly permeable Rx series fabric offers air permeability ranges from 6 to 165 CFM/ft2 (30 .5 to 838 .2 (L/s)/m2) . The filament/filament construction ensures low particle shedding for clean environments .

To best fit individual applications, these products are available in the traditional DuctSox shapes of Round, D-Shape, or Quarter-Round . They are available in almost any size to accommodate the airflow for each space . Inlet airflow velocity, locations, operating pressure, and more will factor into our design recommendations . For best results with critical environments, contact our sales support team .

Modulear D-Fuser options are available in Metal Pan or All-Fabric models

MetalPan: 24”x24” (610 x 610mm) units tested to 500 CFM (236 L/s) /24”x48” (610 x1219mm) units tested up to 1,000 CFM (472 L/s) per unit (standard configuration)

All-Fabric: 24”x 48” (610 x 1219mm) units tested to 1000 CFM (472 L/s) / 24”x 96” (610 x 2438mm) units tested up to 2,000 CFM (944 L/s) per unit (standard configuration)

Surround FlowSurround Flow is the most common air dispersion type, as 100% of the airflow dispersed by the LabSox passes through the fabric . The radial shape of the fabric face produces a uniform and radially diverging air pattern .

Select FlowSelect Flow combines customized vent patterns to include directional airflow control .

Quarter-RoundD-ShapeRound

Airflow volume, pressure, and throw testing wasperformed at an independent testing laboratory . Detailed information available at www .ductsox .com .

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UnderFloorSoxUFSox are a specialty line of DuctSox products designed todistribute and disperse air within the plenum forUnderfloor Air Distribution (UFAD) Systems . To installproperly within the pedestals supporting the raised accessfloor, sectional lengths, elbows, and cable supports are allcarefully designed to ensure a proper fit and flexibility forfuture changes .

With installation, the UFSox simply rests on the floor . To minimize movement of fabric during deflation orfuture wiring or other modifications within the plenum, retention cables tension the fabric near the endcapsand elbows .

The fabric can be attached to the supply by ducting it straight to the supply, or by connecting it to a subplenum using a plenum baffle with taps . The dispersion methods within zones and routing from the supplyinvolve careful consideration for many external factors, such as locations of boxes, plumbing, electrical, andmore . For best results, consult our sales support team .

By design, sections of unvented UFSox route airflow to zones, where airflow is dispersed evenly through linear vents and an operable endcap .

Pull each end of straight sections

using crosscable support

with gripple

DuctSox Diffuser

Appendix

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543

Warranty and Code Compliance

*Application Requirements: Airflow and static pressure per original DuctSox design in accordance with published requirements . Warranty is based on inlet velocities up to 1600 FPM (8 .12m/s) . For SkeleCore FTS, a 10 year warranty is available for inlet velocities up to 2000 FPM (10 .16m/s) . Some exceptions may apply .

Design & Performance WarrantyDuctSox Systems that are designed within our performance criteria, based on DuctSox submittal documents, are covered by a 1 year Design & Performance Warranty . We want to ensure the product performs consistently through the entire heating and cooling cycle for the first year of operation . To ensure a DuctSox System is designed correctly, our Inside Sales and Engineering group are available to provide design assistance .

Product WarrantyOur Product Warranty is for replacement or repair credit based on the amount of the warranty period remaining . The warranty is not available in the form of a cash payment, only as credit towards repair or replacement . The DuctSox Warranty covers materials, fabrication, and performance of the fabric portion of the DuctSox System only . Warranty coverage begins at the time of shipment .

Both the Design & Performance Warranty and the Product Warranty exclude damage to the fabric from improper installation, poor maintenance, abuse, abrasion, caustic chemicals, exposure to high temperature (over 180 degrees Fahrenheit, 82 degrees Celsius), fabric discoloration and shrinkage, or any unauthorized modifications to the DuctSox System . It also does not cover labor, equipment rental, or freight charges incurred as a result of executing the warranty .

The DuctSox warranty is not transferable .

Code ComplianceUnderwriters Laboratories (UL) 2518 is the most comprehensive compliance requirement assembled for the fabric duct industry . It ensures that our products meet a higher level of safety, quality, and performance . Additional information is available at www .ductsox .com .

Warranty Period (in years)*

SkeleCore FTS SkeleCore IHS Hangers 1, 2, or 3 Row Surface Mount

Sedona-Xm, TufTex20

(pro-rated 11-20)

15(pro-rated 11-15)

15(pro-rated 11-15)

10 10

Verona, DuraTex15

(pro-rated 11-15)10 10

10(pro-rated 8-10)

10(pro-rated 8-10)

UFSox, Stat-X5

(pro-rated 2 .5-5)

Rx, Microbe-X, LabSox, KitchenSox, ChemSox

1

File R18856

9866 Kapp Court, Peosta, IA 52068 Ph: 563-588-5300 • Toll Free: 866-382-8769 • Fax: 563-588-5330

www.ductsox.com

DSDM0114A© 2014 DuctSox Corp.

Products may be covered by one or more of the following patents: 6565430, 6558250, 5769708, 6425417,6626754, 6280320, 6960130, 6958011, 6953396, 8434526.

A Subsidiary of Rite-Hite Holding Corporation

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