FULL COUPLING

FULL COUPLING

ASME B16.11-2016 (Revision of ASME B16.11-2011)

full Coupling ASME B16.11

Dimensions in Millimeters.

Socket Welding

DN

Nom
Pipe
Size

B(2)

C(1)

D(2)

E(2)

j
(Min)

(Avg)

(Min)

3000Lb

6

1/8

10.8

3.18

3.18

6.9

6.5

9.5

8

1/4

14.2

3.78

3.30

9.3

6.5

9.5

10

3/8

17.6

4.01

15.0

12.6

6.5

9.5

15

1/2

21.8

4.67

4.09

15.6

9.5

9.5

20

3/4

27.2

4.90

42.7

21.0

9.5

125

25

1

33.9

5.69

4.98

26.7

12.5

12.5

32

1-1/4

42.7

6.07

5.28

35.1

12.5

12.5

40

1-1/2

46.8

6.35

5.54

40.9

12.5

12.5

50

2

61.2

6.93

6.04

52.5

19.0

16.0

65

2-1/2

73.9

8.76

7.67

62.7

19.0

16.0

80

3

89.8

9.52

8.30

78.0

19.0

16.0

100

4

115.2

10.69

9.35

102.3

19.0

19.0

6000Lb

6

1/8

10.8

3.96

3.43

4.0

6.5

9.5

8

1/4

14.2

4.60

401

6.4

6.5

9.5

10

3/8

17.6

5.03

4.37

9.2

6.5

9.5

15

1/2

21.8

5.97

5.18

11.8

9.5

9.5

20

3/4

27.2

6.96

6.04

15.6

9.5

12.5

25

1

31.9

7.92

6.93

20.7

12.5

12.5

32

1-1/4

42.7

7.92

6.93

29.5

12.5

12.5

40

1-1/2

46.8

6.92

17.80

34.0

12.5

12.5

50

2

61.2

10.92

9.50

42.9

19.0

16.0

9000Lb

15

1/2

21.6

9.35

8.15

6.4

9.5

9.5

20

3/4

27.2

9.78

8.56

11.1

9.5

12.5

25

1

33.9

11.38

9.96

15.2

12.5

12.5

32

1-1/4

42.7

12.14

10.62

22.8

12.5

12.5

40

1-1/2

48.8

12.70

11.12

28.0

12.5

12.5

50

2

61.2

13.84

12.12

38.2

19.0

16.0

(1) Average of socket Wall Thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas.

(2) Tolerance see page l8

(3) Reducer "C. J. E" in accordance with large size. "D" in accordance with small size. The others in accordance with each size.

Dimensions Millimeters.

Threaded

DN

Nom.
Pipe
Size

Length of Thread.
(Min)

w

D

B(*)

   L2(*)

3000Lb

6

1/8

6.4

6.7

32

16

8

1/4

8.1

10.2

35

19

10

3/8

9.1

10.4

38

22

15

1/2

10.9

13.6

48

28

20

3/4

12.7

13.9

51

35

25

1

14.7

17.3

60

44

32

1-1/4

17.0

18.4

67

57

40

1-1/2

17.8

18.4

79

64

50

2

19.0

19.2

86

76

65

2-1/2

23.6

28.9

92

92

80

3

25.9

30.5

108

108

100

4

27.7

 33.0

121

140

6000Lb

6

1/8

6.4

6.7

32

22

8

1/4

8.1

10.2

35

25

10

3/8

9.1

10.4

38

32

15

1/2

10.9

13.6

48

38

20

3/4

12.7

13.9

51

44

25

1

14.7

17.3

60

57

32

1-1/4

17.0

18.4

67

64

40

1-1/2

17.8

18.4

79

76

50

2

19.0

19.2

86

92

65

2-1/2

23.6

28.9

92

108

80

3

25.9

30.5

108

127

100

4

27.7

33.0

121

159

Dimension B is minimum length of perfect Thread. The length of useful thread (B plus threads- with fully formed roots and flat crests) shall not be less than L2 (effective length of external thread) required by American National Standard for pipe threads (ANSI ASME B1_20.1)

DIMENSIONAL TOLERANCE OF ASME B16.11
ASME B16.11-2016 (Unit : mm)

Item

Type of
pipe fitting

Size

DN

6 to 8

10 to 20

25 to 50

65 to 100

NPS

1/8 to 1/4

3/8 to 3/4

1 to 2

2-1/2 to 4

Bore diameter of socket (B)

All types of
pipe fittings

+0.4
—0.0

+0.4
—0.0

+0.4
—0.0

+0.4
—0.0

Bore diameter of fitting (D)

±0.7

±0.7

±0.7

±1.4

Concentricity of bore (X)

+ 0.8

Coincidence of axes (Y)

1/200 Max

Center to bottom of socket (A)

45° 90° Elbow
Tee Cross

±1.0

±1.5

±2.0

±2.5

Bottom to bottom of socket (E)

Full Coupling

±1.5

± 3.0

±4.0

±5.0

Bottom to socket to opposite face (F)

Half Coupling

±1.5

±3.0

± 4.0

±5.0