公稱通徑
Nominal Diameter

外徑
Outside Diameter　

壁厚
Wall Thickness　

承插孔徑Socket Bore　

流通孔徑Water way Bore　

承插孔深度Depth of Socket　

公稱裝配長度Length AssemNominal

Dmin

Cmin

d1

d2

Jmin

L

DN

NPS

承插焊
  Socket

螺紋
Threaded

承插焊
  Socket

螺紋
Threaded

承插焊  Socket

承插焊、螺紋Socket & Threaded　

承插焊  Socket

承插焊、螺紋Socket & Threaded　

6

1/8

21.8

14.7

3.2

2.5

10.65

6.43

10

41.4

8

1/4

21.8

19

3.3

3.1

14.1

9.45

10

41.4

10

3/8

25.9

22.9

3.5

3.2

17.55

13.51

10

46

15

1/2

31.2

27.7

4.1

3.8

21.7

17.07

10

49

20

3/4

37.1

33.5

4.3

4

27.05

21.39

13

56.9

25

1

45.5

41.4

5

4.6

33.8

27.74

13

62

32

1.1/4

54.9

50.5

5.3

4.9

42.55

35.36

13

71.1

40

1.1/2

61.5

57.2

5.6

5.1

48.65

41.2

13

76.5

50

2

75.2

70.1

6.1

5.6

61.1

52.12

16

86.1

65

2.1/2

91.7

85.3

7.7

7.1

73.8

64.31

16

102.4

80

3

109.2

102.4

8.4

7.7

89.8

77.27

16

109