公稱外徑dn,mm

公稱壁厚en,mm

S25

S20

S16

S12.5

S10

S8

SDR51

SDR41

SDR33

SDR26

SDR21

SDR17

公稱壓力，MPa

0.63

0.8

1.0

1.25

1.6

2.0

20

2.0

2.0

25

2.0

2.0

32

2.0

2.0

40

2.0

2.4

50

2.0

2.4

3.0

63

2.0

2.5

3.0

3.8

75

2.0

2.3

2.9

3.6

4.5

90

2.0

2.2

2.8

3.5

4.3

5.4

110

2.2

2.7

3.4

4.2

5.3

6.6

125

2.5

3.1

3.9

4.8

6.0

7.4

140

2.8

3.5

4.3

5.4

6.7

8.3

160

3.2

4.0

4.9

6.2

7.7

9.5

180

3.6

4.4

5.5

6.9

8.6

10.7

200

3.9

4.9

6.2

7.7

9.6

11.9

225

4.4

5.5

6.9

8.6

10.8

13.4

250

4.9

6.2

7.7

9.6

11.9

14.8

280

5.5

6.9

8.6

10.7

13.4

16.6

315

6.2

7.7

9.7

12.1

15.0

18.7

355

7.0

8.7

10.9

13.6

16.9

21.1

400

7.9

9.8

12.3

15.3

19.1

23.7

450

8.8

11.0

13.8

17.2

21.5

26.7

500

9.8

12.3

15.3

19.1

23.9

29.7

560

11.0

13.7

17.2

21.4

26.7

33.2

630

12.3

15.4

19.3

24.1

30.0

37.4

710

13.9

17.4

21.8

27.2

33.9

42.1

800

15.7

19.6

24.5

30.6

38.1

47.4

注：管材最小壁厚為2.0mm。