Nominal DiameterΦ

Inside DiameterΦ

Reinforcement

DiameterΦ

Outside

DiameterΦ

Working Pressure

Proof Pressure

Burst Pressure

Bend Radius

inch

dash

mm

mm

mm

bar

psi

bar

bar

mm

1/4

-4

6.2-7.0

11.9-12.5

13.8-14.6

345

5000

690

1379

50

5/16

-5

7.7-8.5

13.0-13.6

15.1-15.9

293

4250

586

1172

57

3/8

-6

9.3-10.1

15.5-16.1

17.8-18.6

276

4000

552

1130

63

1/2

-8

12.3-13.5

18.7-19.3

21.0-21.8

241

3500

483

965

88

5/8

-10

15.5-16.7

22.0-22.6

24.3-25.1

190

2750

380

758

100

3/4

-12

18.6-19.8

25.1-25.9

27.6-28.4

155

2250

310

620

120

1

-16

25.0-26.4

32.6-33.4

35.2-36.0

138

2000

276

552

150