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公称通径
Nominal Diameter

中心至端面 Center to End

外径
Outside Diameter D

壁厚
Wall Thickness

螺纹长度
Length of Thread

A

D

Cmin

弯头、三通、四通
ElbowTee Cross

45°弯头
45°Elbow

DN

NPS

2000
LB

3000
LB

6000
LB

2000
LB

3000
LB

6000
LB

2000
LB

3000
LB

6000
LB

2000
LB

3000
LB

6000
LB

NPT

Rc

Sch80

Sch160

XXS

Sch80

Sch160

XXS

Sch80

Sch160

XXS

Sch80

Sch160

XXS

6

1/8

21

21

25

17

17

19

22

22

25

3.0

3.0

6.5

6.5

6.5

8

1/4

21

25

29

17

19

22

22

25

33

3.0

3.5

6.5

8.0

10.0

10

3/8

25

29

33

19

22

25

25

33

38

3.0

3.5

7.0

9.0

10.5

15

1/2

29

33

38

22

25

29

33

38

46

3.0

4.0

8.0

11.0

13.5

20

3/4

33

38

44

25

29

33

38

46

56

3.0

4.5

8.5

12.5

14.0

25

1

38

44

51

29

33

35

46

56

62

3.5

5.0

10.0

14.5

17.5

32

1.1/4

44

51

60

33

35

43

56

62

75

4.0

5.5

10.5

17.0

18.0

40

1.1/2

51

60

64

35

43

44

62

75

84

4.0

5.5

11.0

18.0

18.5

50

2

60

64

83

43

45

52

75

84

102

4.5

7.0

12.0

19.0

19.0

65

2.1/2

76

83

95

52

52

64

92

102

121

5.5

7.5

15.5

23.5

29.0

80

3

86

96

106

64

64

79

110

121

146

6.0

9.0

16.5

26.0

30.0

100

4

106

114

114

79

79

79

146

152

152

6.5

11.0

18.5

27.5

33.0