公称

公 称 压 力 PN

尺寸

16

20

25

40

50

63

100

150、160

250、260

420

DN

阀 杆 的 最 小 直 径/mm

25

14.00

15.59

15.59

15.59

15.59

15.59

15.59

18.77

18.77

18.77

32

15.59

15.59

15.59

15.59

15.59

15.59

15.59

18.77

18.77

18.77

40

17.17

17.17

18.00

18.00

18.77

18.77

18.77

21.87

21.87

21.87

50

18.00

18.77

18.77

18.77

18.77

18.77

18.77

25.04

25.04

25.04

65

18.77

18.77

18.77

18.77

18.77

21.87

21.87

28.22

28.22

28.22

80

21.87

21.87

21.87

21.87

21.87

24.00

25.04

28.22

31.39

31.39

100

24.00

25.04

25.04

25.04

25.04

26.00

28.22

31.39

34.47

34.47

150

28.00

28.22

28.22

30.00

31.39

32.00

37.62

40.77

43.84

46.94

200

31.39

31.39

32.00

34.00

34.47

38.00

40.77

46.94

53.24

59.54

250

34.47

34.47

36.00

37.62

37.62

42.00

46.94

58.24

62.74

72.24

300

37.62

37.62

38.00

40.00

40.77

46.00

50.14

56.44

69.14

81.84

350

40.77

40.77

42.00

43.84

43.84

50.00

56.44

59.54

75.44

—

400

43.84

43.84

46.00

46.00

46.94

55.00

59.54

62.74

75.44

—

450

46.94

46.94

48.00

50.00

50.14

60.00

62.74

69.14

—

—

500

50.00

50.14

50.14

52.00

53.24

60.00

69.14

75.44

—

—

600

52.00

56.44

56.44

60.00

62.74

75.00

75.44

—

—

—