Nominal

Outside Dia

Socket Type

Structural Diameter

Size

Do

d1

d2

I

d

L

NPT（牙/寸

1/2"

29

21.54

21.23

24.22

16

52

14

3/4"

35

26.87

26.57

27.40

22

60

14

1"

44

33.66

33.27

30.58

28

65

11.5

1-1/4"

54

42.42

42.04

34.75

35

78

11.5

1-1/2"

60

48.56

48.11

37.93

43

80

11.5

2"

73

60.63

60.17

41.10

54

88

11.5