公称

尺寸

DN

公 称 压 力 PN

16

20

25

40

50

63、64

100

150、160

250、260

420

阀 体 最 小 壁 厚/mm

25

6.4

6.4

6.4

6.4

6.4

7.4

7.9

12.7

12.7

15.1

32

6.4

6.4

6.4

6.4

6.4

7.9

8.6

14.2

14.2

17.5

40

6.4

6.4

6.7

7.4

7.9

8.2

9.4

15.0

15.0

19.1

50

7.9

8.6

8.8

9.3

9.7

10.0

11.2

15.8

19.1

22.4

65

8.7

9.7

10.0

10.7

11.2

11.4

11.9

18.0

22.4

25.4

80

9.4

10.4

10.7

11.4

11.9

12.1

12.7

19.1

23.9

30.2

100

10.3

11.2

11.5

12.2

12.7

13.4

16.0

21.3

28.7

35.8

150

11.9

11.9

12.6

14.6

16.0

16.7

19.1

26.2

38.1

48.5

200

12.7

12.7

13.5

15.9

17.5

19.2

25.4

31.8

47.8

62.0

250

14.2

14.2

15.0

17.5

19.1

21.2

28.7

36.6

57.2

67.6

300

15.3

16.0

16.8

19.1

20.6

23.0

31.8

42.2

66.8

86.6

350

15.9

16.8

17.7

20.5

22.4

25.2

35.1

46.0

69.9

—

400

16.4

17.5

18.6

21.8

23.9

27.0

38.1

52.3

79.5

—

450

16.9

18.3

19.5

23.0

25.4

28.9

41.4

57.2

88.9

—

500

17.6

19.1

20.4

24.3

26.9

30.7

44.5

63.5

98.6

—

600

19.6

20.6

22.2

27.0

30.2

34.7

50.8

73.2

114.3

—