Available Dimensions

SPIRAL WELDED TUBE & PIPE

O.D. (mm)

AVAILABLE WALL THICKNESS

Metric

Imp.

1.6

2.0

2.5

3.0

4.0

5.0

6.0

76

3 inch

89

3 NB

102

4

114

4 NB

127

5

140

5 NB

152

6

165

6 NB

178

7

203

8

219

8 NB

229

9

254

10

273

10 NB

279

11

305

12

323

12 NB

330

13

356

14

381

15

406

16

432

17

457

18

483

19

508

20

533

21

559

22

584

23

610

24

660

26

711

28

762

30

813

32

864

34

914

36

965

38

1016

40

1067

42

1118

44

1168

46

1219

48

1321

52

1422

56

1524

60

1626

64

SPIRAL LOCKSEAM DUCT

O.D. (mm)

AVAILABLE WALL THICKNESS

Metric

Imp.

0.6

0.8

1.0

1.2

1.6

2.0

2.5

76

3 inch

89

3 NB

102

4

114

4 NB

127

5

140

5 NB

152

6

165

6 NB

178

7

203

8

219

8 NB

229

9

254

10

273

10 NB

279

11

305

12

323

12 NB

330

13

356

14

381

15

406

16

432

17

457

18

483

19

508

20

533

21

559

22

584

23

610

24

660

26

711

28

762

30

813

32

864

34

914

36

965

38

1016

40

1067

42

1118

44

1168

46

1219

48

1270

50

1321

52

1372

54

1422

56

1524

60

1626

64

1676

66

1727

68

1778

70

1829

72

1880

74

1930

76

1981

78

2032

80

2133

84

2235

88

2336

92

2438

96

OVAL DUCT CALCULATION CHART

Nominal Oval Duct Height in mm

152

203

254

305

356

406

457

508

610

762

483
*279

521
*292

560
*305

533
*343

635
*318

610
*368

584
*394

711
*330

686
*381

660
*432

635
*457

800
*343

775
*406

737
*445

711
*483

686
*508

648
*533

876
*368

838
*419

826
*470

787
*508

762
*546

737
*572

711
*584

952
*381

927
*445

902
*495

876
*533

838
*572

813
*597

787
*622

749
*635

1041
*394

1003
*457

978
*508

953
*559

927
*597

889
*622

864
*660

838
*673

1176
*406

1092
*470

1067
*533

1029
*572

1003
*622

978
*660

940
*686

914
*711

1168
*483

1143
*546

1118
*597

1080
*648

1054
*686

1029
*711

1003
*737

1218
*589

1189
*625

1165
*671

1131
*710

1102
*745

1073
*775

1007
*775

1308
*572

1270
*635

1245
*680

1219
*724

1181
*762

1156
*800

1087
*876

1379
*604

1349
*662

1320
*713

1291
*757

1287
*797

1241
*830

1168
*900

1461
*610

1435
*673

1410
*724

1375
*775

1346
*813

1321
*851

1248
*910

1531
*621

1511
*696

1481
*752

1452
*800

1423
*844

1394
*882

1327
*940

1241
*1037

1626
*635

1600
*699

1562
*762

1537
*813

1511
*851

1473
*902

1408
*965

1321
*1071

1660
*716

1646
*787

1612
*840

1583
*887

1554
*934

1486
*995

1400
*1092

1753
*724

1727
*787

1702
*851

1664
*902

1638
*940

1567
*1006

1480
*1108

1820
*742

1802
*821

1773
*877

1750
*928

1724
*974

1646
*1032

1560
*1135

1918
*762

1892
*846

1854
*921

1829
*947

1803
*978

1726
*1040

1640
*1142

1981
*784

1952
*650

1923
*943

1894
*970

1865
*1003

1807
*1062

Available in Plain, Double Corrugated, Perforated & Insulated as well as various fittings to suit

MAXIMUM LENGTH UP TO 4 MTRS

254

Denotes height of oval duct in mm

584
*394

Denotes width of oval duct in mm

Denotes round diameter equivalent air flow