British measurement

Metric measurement

W.P.

B.P.

Weight

Volume

I.D.

O.D.

Length

inch

mm

m

Mpa

Mpa

kg/roll

m3

5/16

8

14

100

0.7

1.8

18.5

0.04

3/8

9

15

19

0.042

1/2

12

18

0.5

1.7

22.5

0.055

5/8

15

22

30.5

0.090

3/4

19

26

50

0.4

1.4

18

0.070

1

25

33

27.5

0.10

1-1/4

32

41

40

0.3

1.1

31

0.150

1-1/2

38

48

42.5

0.20

1-3/4

45

55

54.5

0.25

2

50

62

64.5

0.30

2-1/4

57

68

30

54.5

0.250

2-1/2

64

80

20

56.5

0.250

3

75

92

0.2

0.7

70.5

0.350

3-1/2

90

108

84.5

0.450

4

102

120

96.5

0.60

5

125

145

10

0.15

0.5

67.5

0.80

6

152

172

10

0.15