公称管径

内径

厚度（mm）

mm

(“)

mm

25

30

40

50

60

70

80

90

100

120

150

15

1/2

22

●

●

●

●

20

3/4

27

●

●

●

●

●

●

●

25

1

34

●

●

●

●

●

●

●

32

1-1/4

43

●

●

●

●

●

●

●

●

●

40

1-1/2

48

●

●

●

●

●

●

●

●

●

50

2

60

●

●

●

●

●

●

●

●

●

65

2-1/2

76

●

●

●

●

●

●

●

●

●

80

3

89

●

●

●

●

●

●

●

●

●

90

3-1/2

108

●

●

●

●

●

●

●

●

●

100

4

114

●

●

●

●

●

●

●

●

●

●

125

5

140

●

●

●

●

●

●

●

●

●

●

150

6

169

●

●

●

●

●

●

●

●

●

●

200

8

219

●

●

●

●

●

●

●

●

●

250

10

273

●

●

●

●

●

●

●

●

●

300

12

325

●

●

●

●

●

●

●

●

●

350

14

356

●

●

●

●

●

●

●

●

375

15

381

●

●

●

●

●

●

●

●

400

16

406

●

●

●

●

●

●

●

●

450

18

456

●

●

●

●

●

●

●

●

475

19

483

●

●

●

●

●

●

500

20

508

●

●

●

●

●

●

550

22

558

●

●

●

●

●

600

24

610

●

●

●

●

●