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公稱尺寸

DN

公 稱 壓 力 PN

16

20

25

40

50

63

100、110

150、160

250、260

420

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

—