Nominal Bore
 inch           mm

Maximum Working Pressure
lb/in²
Bar

Maximum test Pressure
lb/in²
Bar

Minimum Bending Radius MBR
mm+10%

1/4

6

2300 / 160

3450 / 240

3.5 / 89

3/8

10

2000 / 138

3000 / 207

3.75 / 95

1/2

13

1500 / 103

2250 / 154

4 / 102

3/4

19

900 / 62

1350 / 92

5 / 127

1

25

750 / 52

1125 / 78

6 / 152

1¼

32

600 / 42

900 / 62

7 / 178

1½

38

550 / 38

825 / 57

10 / 254

2

51

500 / 34

750 / 51

14 / 356

2½

64

450 / 31

675 / 46

18 / 457

3

76

400 / 27

600 / 42

20 / 508

4

102

250 / 17

375 / 25

24 / 610

5

127

230 / 16

350 / 24

29 / 737

6

152

145 / 10

220 / 15

35 / 890

8

200

90 / 6

135 / 9

39 / 980

Nominal Bore
inch              mm     

Maximum Working Pressure
lb/in²
Bar

Maximum test Pressure
lb/in²
Bar

Minimum Bending Radius MBR
mm+10%

1/4

6

4000 / 275

6000 / 412

3.5 / 89

3/8

10

3200 / 221

4800 / 331

3.75 / 95

1/2

13

2550 / 176

3800 / 261

4 / 102

3/4

19

1600 / 10

2400 / 165

5 / 127

1

25

1300 / 90

1950 / 135

6 / 152

1¼

32

1000 / 69

1500 / 103

7 / 178

1½

38

750 / 52

1125 / 76

10 / 254

2

51

700 / 48

1050 / 73

14 / 356

2½

64

600 / 41

900 / 62

18 / 457

3

76

550 / 38

825 / 57

20 / 508

4

102

300 / 20

450 / 30

24 / 610

5

127

280 / 19

420 / 28

29 / 737

6

152

220 / 15

325 / 22

35 / 890

8

200

145 / 10

220 / 15

39 / 980