阀体、阀盖的最小壁厚标准

公称尺寸

阀体、阀盖的最小壁厚

DN

PN16

PN25

PN40

PN63

PN100

PN160

PN20

PN50

PN110

PN150

50

7.9

8.8

9.3

10.0

11.2

14.5

8.6

9.7

11.2

14.5

65

8.7

10.0

10.7

11.4

11.9

16.6

9.7

11.2

11.9

16.6

80

9.4

10.7

11.4

12.1

12.7

19.1

10.4

11.9

12.7

19.1

100

10.3

11.5

12.2

13.4

16.0

21.3

11.2

12.7

16.0

21.3

125

11.2

11.9

13.2

15.0

17.4

23.5

11.5

14.1

17.4

23.5

150

11.9

12.6

14.6

16.7

19.1

26.2

11.9

16.0

19.1

26.2

200

12.7

13.5

15.9

19.2

25.4

31.8

12.7

17.5

25.4

31.8

250

14.2

15.0

17.5

21.2

28.7

36.6

14.2

19.1

28.7

36.6

300

15.3

16.8

19.1

23.0

31.8

42.2

16.0

20.6

31.8

42.2

350

15.9

17.7

20.5

25.2

35.1

—

16.8

22.4

35.1

—

400

16.4

18.6

21.8

27.0

38.1

—

17.5

23.9

38.1

—

450

16.9

19.5

23.0

28.9

41.4

—

18.3

25.4

41.4

—

500

17.6

20.4

24.3

30.7

44.5

—

19.1

26.9

44.5

—

600

19.6

22.2

27.0

—

—

—

20.6

30.2

—

—

700

21.0

25.0

30.0

—

—

—

22.0

33.5

—

—

800

23.0

28.0

34.5

—

—

—

24.0

38.0

—

—