Nominal DiameterΦ

Inside DiameterΦ

Reinforcement

DiameterΦ

Outside

DiameterΦ

Working Pressure

Proof Pressure

Burst Pressure

Bend Radius

inch

mm

mm

mm

mm

bar

psi

bar

bar

mm

3/16

5

4.6-5.4

8.9-10.1

**

250

3625

600

1000

89

1/4

6

6.2-7.0

10.8-11.4

12.7-13.5

225

3263

540

900

102

5/16

8

7.7-8.5

12.5-13.1

14.6-15.4

215

3118

510

850

114

3/8

10

9.3-10.1

14.5-15.1

16.7-17.5

180

2610

435

720

127

1/2

12

12.3-13.5

17.7-18.3

19.8-20.6

160

2320

385

640

178

5/8

16

15.5-16.7

21.1-21.7

23.2-24.0

130

1885

315

520

203

3/4

19

18.6-19.8

24.6-25.4

26.9-27.7

105

1523

255

420

241

1

25

25.2-26.4

32.1-32.9

34.6-35.4

88

1276

210

350

305

1-1/4

31

31.4-33.0

40.8-41.6

43.3-44.1

63

914

150

250

419

1-1/2

38

37.7-39.3

47.2-48.0

49.7-50.5

50

725

120

200

508

2

51

50.4-52.0

59.9-60.7

62.4-63.2

40

580

96

160

635