SIZE
Nom.

15mm
(1/2")

20mm
(3/4")

25mm
(1")

32mm
(1-1/4")

40mm
(1-1/2")

50mm
(2")

65mm
(2-1/2")

80mm
(3")

100mm
(4")

thd./in

NPT

14

14

11.5

11.5

11.5

11.5

8

8

11.5

PT

14

14

11

11

11

11

11

11

11

JIS

I

22.22

25.4

28.6

31.8

34.9

38.1

44.45

63

69

d1

22.30

26.30

32.33

38.43

48.46

60.56

76.60

89.6

114.7

d2

21.70

25.70

31.67

37.57

47.54

59.44

75.87

88.83

113.98

ANSI

I

22.22

25.40

28.58

31.75

34.93

38.10

44.45

47.63

57.15

d1

21.54

26.87

33.65

42.42

48.56

60.63

73.38

89.31

114.76

d2

21.23

26.57

33.27

42.04

48.11

60.17

72.85

88.7

114.07

BS

I

16.5

19.5

22.5

27

30

36

-

-

-

d1

21.5

26.9

33.7

42.4

48.4

60.5

-

-

-

d2

21.3

26.7

33.5

42.2

48.2

60.3

-

-

-

DIN

I

16

19

22

26

31

38

44

51

61

d1

20.3

25.3

32.3

40.3

50.3

63.3

75.3

90.3

110.4

d2

20.1

25.1

32.1

40.1

50.1

63.1

75.1

90.1

110.1