公稱口徑

Nominal

Diameter  

壁厚
Wall Thickness

外徑
(Outside Diameter)

鋅管重量
(Mass of Galv. Pipe)

螺紋
Thread

DN
mm

英寸

Inch

毫米

Mm

最大
Maximum

最小
Minimum

平頭
Plain End

車絲連接頭

Screwed and Socketed

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

每英寸牙數

Thread no. per inch

螺紋總長

mm

15

1/2

2.0

2.6

3.2

21.4

21.7

21.7

21.0

21.1

21.1

0.99

1.27

1.50

1.00

1.28

1.51

14

11.4~15

20

3/4

2.3

2.6

3.2

26.9

27.2

27.2

26.4

26.6

26.6

1.44

1.63

1.94

1.45

1.64

1.95

14

12.7~16.3

25

1

2.6

3.2

4.0

33.8

34.2

34.2

33.2

33.4

33.4

2.06

2.50

3.03

2.08

2.52

3.05

11

14.5~19.1

32

11/4  

2.6

3.2

4.0

42.5

42.9

42.9

41.9

42.1

42.1

2.64

3.22

3.92

2.67

3.25

3.95

11

16.8~21.4

40

11/2

2.9

3.2

4.0

48.4

48.8

48.8

47.8

48.0

48.0

3.35

3.70

4.51

3.39

3.74

4.55

11

16.8~21.4

50

2

2.9

3.6

4.5

60.2

60.8

60.8

59.6

59.8

59.8

4.23

5.21

6.36

4.30

5.28

6.44

11

21.1~25.7

65

21/2

3.2

3.6

4.5

76.0

76.6

76.6

75.2

75.4

75.4

5.90

6.65

8.15

6.03

6.77

8.28

11

23.2~30.2

80

3

3.2

4.0

5.0

88.7

89.5

89.5

87.9

88.1

88.1

6.94

8.64

10.58

7.11

8.81

10.78

11

26.3~33.3

100

4

3.6

4.5

5.4

113.9

114.9

114.9

113.0

113.3

-

10.06

12.59

14.88

10.32

12.90

15.18

11

32.3~39.3

125

5

-

5.0

5.4

-

140.6

140.6

-

138.7

-

-

17.06

18.31

-

17.58

18.82

11

36.6~43.6

150

6

-

5.0

5.4

-

166.1

166.1

-

164.1

-

-

20.25

21.79

-

20.87

22.40

11

36.6~43.6