Class

Class1

Class2

Class3

Class4

Class5

Nominal Pressure in Bars

2 BAR

4 BAR

6 BAR

10 BAR

16 BAR

Nom-OD

Tole-rance on Nom-OD

Nom-thick

Of wall

Nom-wt.

Nom-thick

Of wall

Nom-wt.

Nom-thick

Of wall

Nom-wt.

Nom-thick

Of wall

Nom-wt.

Nom-thick

Of wall

Nom-wt.

MM

MM

MM

KG/M

MM

KG/M

MM

KG/M

MM

KG/M

MM

KG/M

5

+0.2

6

+0.2

8

+0.2

10

+0.2

1.0

0.045

12

+0.2

1.0

0.055

16

+0.2

1.2

0.090

20

+0.2

1.5

0.137

25

+0.2

1.5

0.174

1.9

0.212

32

+0.2

1.8

0.264

2.4

0.342

40

+0.2

1.8

0.334

1.9

0.350

3.0

0.525

50

+0.2

1.8

0.422

2.4

0.552

3.7

0.809

63

+0.2

1.9

0.562

3.0

0.854

4.7

1.29

75

+0.3

1.8

0.642

2.2

0.782

3.6

1.22

5.6

1.82

90

+0.3

1.8

0.774

2.7

1.13

4.3

1.75

6.7

2.61

110

+0.3

1.8

0.950

2.2

1.16

3.2

1.64

5.3

2.61

8.2

3.90

125

+0.3

1.8

1.08

2.5

1.48

3.7

2.13

6.0

3.64

9.3

5.01

140

+0.4

1.8

1.21

2.8

1.84

4.1

2.65

6.7

4.18

10.4

6.27

160

+0.4

1.8

1.39

3.2

2.41

4.7

3.44

7.7

5.47

11.9

8.17

180

+0.4

1.8

1.57

3.6

3.02

5.3

4.37

8.6

6.88

13.4

10.4

200

+0.4

1.8

1.74

4.0

3.70

5.9

5.37

9.6

8.15

14.9

12.8

225

+0.5

1.8

1.96

4.5

4.70

6.6

6.76

10.8

10.8

16.7

16.1

250

+0.5

2.0

2.40

4.9

5.65

7.3

8.31

11.9

13.2

18.6

19.9

280

+0.6

2.3

3.11

5.5

7.11

8.2

10.4

13.4

16.6

20.8

24.9

315

+0.6

2.5

3.78

6.2

9.02

9.2

13.2

15.0

20.9

23.4

31.5

355

+0.7

2.9

4.88

7.0

11.4

10.4

16.7

16.9

26.5

26.3

39.9

400

+0.7

3.2

6.10

7.9

14.5

11.7

21.1

19.1

33.7

29.7

50.8

450

+0.8

3.6

7.65

8.9

18.3

13.2

26.8

21.5

42.7

500

+0.9

4.0

9.38

9.8

22.4

14.6

32.9

23.9

52.6

560

+1.0

4.2

11.8

11.0

28.1

16.4

41.4

26.7

65.8

630

+1.1

2.0

14.7

12.4

35.7

18.4

52.2

30.0

83.2

710

+1.2

5.7

18.9

14.0

45.3

20.7

66.1

800

+1.3

6.4

23.9

15.7

57.2

23.3

83.9