ANSI/ASME B16.5 & B16.47 Ring Type Joint Flanges

PDF: Ring Joint Facings – ASME/ANSI B16.5 & B16.47

ANSIASME-B16.5 & B16.47 Ring Type Joint Flanges

ANSIASME-B16.5 & B16.47 Ring Type Joint Flanges

Note

-Values for minimum flange thickness, C, and overall length, D, are detailed in the flange tables.

-For ring joint tolerances see page 8-9.

Ring joint facing dimensions -ASME/ANSI B16.5 and B16.47 Series A (MSS SP-44) and Series B (API 605)

Class (lb)

 

Groove/RingNumber

Raised Face

 

Groove

 

150

300

400

600

900

1500

2500

         

Nominal Pipe Size (NPS)

 

Face Diameter min

Pitch Diameter

Depth1

Width

Radius at Bottom

in mm

in mm

in mm

in mm

in mm

ASME/ANSI B16.5 covers NPS 1/2 to 24:

           
 

1/2

Use Class 600 for sizes < 3 1 /2

1/2

Use Class 1500 for sizes < 2 1/2

   

R11

2.000 50.80

1.344 34.14

0.219 5.56

0.281 7.14

0.03 0.76

     

1/2

 

R12

2.380 60.45

1.562 39.67

0.250 6.35

0.344 8.74

0.03 0.76

 

3/4

3/4

   

R13

2.500 63.50

1.688 42.88

0.250 6.35

0.344 8.74

0.03 0.76

       

1/2

R13

2.560 65.02

1.688 42.88

0.250 6.35

0.344 8.74

0.03 0.76

     

3/4

 

R14

2.620 66.55

1.750 44.45

0.250 6.35

0.344 8.74

0.03 0.76

1

       

R15

2.500 63.50

1.875 47.63

0.250 6.35

0.344 8.74

0.03 0.76

 

1

1

   

R16

2.750 69.85

2.000 50.80

0.250 6.35

0.344 8.74

0.03 0.76

     

1

 

R16

2.810 71.37

2.000 50.80

0.250 6.35

0.344 8.74

0.03 0.76

       

3/4

R16

2.880 73.15

2.000 50.80

0.250 6.35

0.344 8.74

0.03 0.76

11/4

       

R17

2.880 73.15

2.250 57.15

0.250 6.35

0.344 8.74

0.03 0.76

 

11/4

11/4

   

R18

3.120 79.25

2.375 60.33

0.250 6.35

0.344 8.74

0.03 0.76

     

11/4

 

R18

3.190 81.03

2.375 60.33

0.250 6.35

0.344 8.74

0.03 0.76

       

1

R18

3.250 82.55

2.375 60.33

0.250 6.35

0.344 8.74

0.03 0.76

11/2

       

R19

3.250 82.55

2.562 65.07

0.250 6.35

0.344 8.74

0.03 0.76

 

11/2

11/2

   

R20

3.560 90.42

2.688 68.28

0.250 6.35

0.344 8.74

0.03 0.76

     

11/2

 

R20

3.620 91.95

2.688 68.28

0.250 6.35

0.344 8.74

0.03 0.76

       

11/4

R21

4.000 101.60

2.844 72.24

0.312 7.92

0.469 11.91

0.03 0.76

2

       

R22

4.000 101.60

3.250 82.55

0.250 6.35

0.344 8.74

0.03 0.76

 

2

2

   

R23

4.250 107.95

3.250 82.55

0.312 7.92

0.469 11.91

0.03 0.76

       

11/2

R23

4.500 114.30

3.250 82.55

0.312 7.92

0.469 11.91

0.03 0.76

     

2

 

R24

4.880 123.95

3.750 95.25

0.312 7.92

0.469 11.91

0.03 0.76

21/2

       

R25

4.750 120.65

4.000 101.60

0.250 6.35

0.344 8.74

0.03 0.76

 

21/2

21/2

   

R26

5.000 127.00

4.000 101.60

0.312 7.92

0.469 11.91

0.03 0.76

       

2

R26

5.250 133.35

4.000 101.60

0.312 7.92

0.469 11.91

0.03 0.76

 

     

Class (lb)

   

Raised Face

 

Groove

 
 

150

300

400

600

900

1500

2500

e/Ringmber

         
     

Nominal Pipe Size (NPS)

 

GroovNu

Face Diameter min

Pitch Diameter

Depth1

Width

Radius at Bottom

 

in mm

in mm

in mm

in mm

in mm

     

Use Class 600 for sizes < 3 1 /2

   

21/2

 

R27

5.380 136.65

4.250 107.95

0.31 27.92

0.469 11.91

0.03 0.76

           

21/2

R28

5.880 149.35

4.37511 1.13

0.375 9.53

0.531 13.49

0.06 1.52

 

3

         

R29

5.250 133.35

4.500 114.30

0.250 6.35

0.344 8.74

0.03 0.76

   

-2

-2

     

R30

4.625 117.48

0.312 7.92

0.469 11.91

0.03 0.76

   

32

32

     

R31

5.750 146.05

4.875 123.83

0.312 7.92

0.469 11.91

0.03 0.76

       

3

   

R31

6.120 155.45

4.875 123.83

0.312 7.92

0.469 11.91

0.03 0.76

           

3

R32

6.620 168.15

5.000 127.00

0.375 9.53

0.531 13.49

0.06 1.52

 

31/2

         

R33

6.060 153.92

5.188 131.78

0.250 6.35

0.344 8.74

0.03 0.76

   

31/2

31/2

     

R34

6.250 158.75

5.188 131.78

0.312 7.92

0.469 11.91

0.03 0.76

           

3

 

R35

6.620 168.15

5.375 136.53

0.312 7.92

0.469 11.91

0.03 0.76

 

4

           

R36

6.750 171.45

5.875 149.23

0.250 6.35

0.344 8.74

0.03 0.76

   

4

4

4

     

R37

6.880 174.75

5.875 149.23

0.312 7.92

0.469 11.91

0.03 0.76

         

4

   

R37

7.120 180.85

5.875 149.23

0.312 7.92

0.469 11.91

0.03 0.76

             

4

R38

8.000 203.20

6.1881 57.18

0.438 11.13

0.656 16.66

0.06 1.52

           

4

 

R39

7.620 193.55

6.375 161.93

0.312 7.92

0.469 11.91

0.03 0.76

 

5

           

R40

7.620 193.55

6.750 171.45

0.250 6.35

0.344 8.74

0.03 0.76

   

5

5

5

     

R41

8.250 209.55

7.125 180.98

0.312 7.92

0.469 11.91

0.03 0.76

         

5

   

R41

8.500 215.90

7.125 180.98

0.312 7.92

0.469 11.91

0.03 0.76

             

5

R42

9.500 241.30

7.500 190.50

0.500 12.70

0.781 19.84

0.06 1.52

 

6

           

R43

8.620 218.95

7.625 193.68

0.250 6.35

0.344 8.74

0.03 0.76

           

5

 

R44

9.000 228.60

7.625 193.68

0.312 7.92

0.469 11.91

0.03 0.76

   

6

6

6

     

R45

9.500 241.30

8.312 211.12

0.312 7.92

0.469 11.91

0.03 0.76

         

6

   

R45

9.500 241.30

8.312 211.12

0.312 7.92

0.469 11.91

0.03 0.76

           

6

 

R46

9.750 247.65

8.312 211.12

0.375 9.53

0.531 13.49

0.06 1.52

             

6

R47

11.000 279.40

9.000 228.60

0.500 12.70

0.781 19.84

0.06 1.52

 

8

           

R48

10.750 273.05

9.750 247.65

0.250 6.35

0.344 8.74

0.03 0.76

   

8

8

8

     

R49

11.880 301.75

10.625 269.88

0.312 7.92

0.469 11.91

0.03 0.76

         

8

   

R49

12.120 307.85

10.625 269.88

0.312 7.92

0.469 11.91

0.03 0.76

           

8

 

R50

12.500 317.50

10.625 269.88

0.438 11.13

0.656 16.66

0.06 1.52

             

8

R51

13.380 339.85

11.000 279.40

0.562 14.27

0.906 23.01

0.06 1.52

 

10

           

R52

13.000 330.20

12.000 304.80

0.250 6.35

0.344 8.74

0.03 0.76

   

10

10

10

     

R53

14.000 355.60

12.750 323.85

0.312 7.92

0.469 11.91

0.03 0.76

         

10

   

R53

14.250 361.95

12.750 323.85

0.312 7.92

0.469 11.91

0.03 0.76

           

10

 

R54

14.620 371.35

12.750 323.85

0.438 11.13

0.656 16.66

0.06 1.52

 

Ring joint facing dimensions -ASME/ANSI B16.5

     
                                 

 

   

Class (lb)

   

Raised Face

 

Groove

 

150

300

400

600

900

1500

2500

e/Ringmber

         
   

Nominal Pipe Size (NPS)

 

GroovNu

Face Diameter min

Pitch Diameter

Depth1

Width

Radius at Bottom

in mm

in mm

in mm

in mm

in mm

           

10

R55

16.750 425.45

13.500 342.90

0.688 17.48

1.188 30.18

0.09 2.29

12

           

R56

16.000 406.40

15.000 381.00

0.250 6.35

0.344 8.74

0.03 0.76

 

12

12

12

     

R57

16.250 412.75

15.000 381.00

0.312 7.92

0.469 11.91

0.03 0.76

       

12

   

R57

16.500 419.10

15.000 381.00

0.312 7.92

0.469 11.91

0.03 0.76

         

12

 

R58

17.250 438.15

15.000 381.00

0.562 14.27

0.906 23.01

0.06 1.52

14

           

R59

16.750 425.45

15.625 396.88

0.250 6.35

0.344 8.74

0.03 0.76

           

12

R60

19.500 495.30

16.000 406.40

0.688 17.48

1.312 33.32

0.09 2.29

 

14

14

14

     

R61

18.000 457.20

16.500 419.10

0.312 7.92

0.469 11.91

0.03 0.76

       

14

   

R62

18.380 466.85

16.500 419.10

0.438 11.13

0.656 16.66

0.06 1.52

         

14

 

R63

19.250 488.95

16.500 419.10

0.625 15.88

1.062 26.97

0.09 2.29

16

           

R64

19.000 482.60

17.875 454.03

0.250 6.35

0.344 8.74

0.03 0.76

 

16

16

16

     

R65

20.000 508.00

18.500 469.90

0.312 7.92

0.469 11.91

0.03 0.76

       

16

   

R66

20.620 523.75

18.500 469.90

0.438 11.13

0.656 16.66

0.06 1.52

         

16

 

R67

21.500 546.10

18.500 469.90

0.688 17.48

1.188 30.18

0.09 2.29

18

           

R68

21.500 546.10

20.375 517.53

0.250 6.35

0.344 8.74

0.03 0.76

 

18

18

18

     

R69

22.620 574.55

21.000 533.40

0.312 7.92

0.469 11.91

0.03 0.76

       

18

   

R70

23.380 593.85

21.000 533.40

0.500 12.70

0.781 19.84

0.06 1.52

         

18

 

R71

24.120 612.65

21.000 533.40

0.688 17.48

1.188 30.18

0.09 2.29

20

           

R72

23.500 596.90

22.000 558.80

0.250 6.35

0.344 8.74

0.03 0.76

 

20

20

20

     

R73

25.000 635.00

23.000 584.20

0.375 9.53

0.531 13.49

0.06 1.52

       

20

   

R74

25.500 647.70

23.000 584.20

0.500 12.70

0.781 19.84

0.06 1.52

         

20

 

R75

26.500 673.10

23.000 584.20

0.688 17.48

1.312 33.32

0.09 2.29

24

           

R76

28.000 711.20

26.500 673.10

0.250 6.35

0.344 8.74

0.03 0.76

 

24

24

24

     

R77

29.500 749.30

27.250 692.15

0.438 11.13

0.656 16.66

0.06 1.52

       

24

   

R78

30.380 771.65

27.250 692.15

0.625 15.88

1.062 26.97

0.09 2.29

 

Class (lb)

Groove/RingNumber

Raised Face

Groove

150

300

400

600

900

1500

2500

         

Nominal Pipe Size (NPS)

Face Diameter min

Pitch Diameter

Depth1

Width

Radius at Bottom

in mm

in mm

in mm

in mm

in mm

         

24

 

R79

31.250 793.75

27.250 692.15

0.812 20.62

1.438 36.53

0.09 2.29

MSS SP-44 only, covers NPS 22:

 

22

22

22

     

R81

27.000 685.80

25.000 635.00

0.438 11.13

0.594 15.09

0.06 1.52

ASME/ANSI B16.47 (MSS SP-44 & API 605) covers NPS 26 to 36. (There are no ring joint facings >NPS 36)

 

26

26

26

     

R93

31.880 809.75

29.500 749.30

0.500 12.70

0.781 19.84

0.06 1.52

 

28

28

28

     

R94

33.880 860.55

31.500 800.10

0.500 12.70

0.781 19.84

0.06 1.52

 

30

30

30

     

R95

36.120 917.45

33.750 857.25

0.500 12.70

0.781 19.84

0.06 1.52

 

32

32

32

     

R96

38.750 984.25

36.000 914.40

0.562 14.27

0.906 23.01

0.06 1.52

 

34

34

34

     

R97

40.750 1035.1

38.000 965.20

0.562 14.27

0.906 23.01

0.06 1.52

 

36

36

36

     

R98

43.000 1092.2

40.250 1022.4

0.562 14.27

0.906 23.01

0.06 1.52

       

26

   

R100

32.750 831.85

29.500 749.30

0.688 17.48

1.188 30.18

0.09 2.29

       

28

   

R101

35.000 889.00

31.500 800.10

0.688 17.48

1.312 33.32

0.09 2.29

       

30

   

R102

37.250 946.15

33.750 857.25

0.688 17.48

1.312 33.32

0.09 2.29

       

32

   

R103

39.500 1003.3

36.000 914.40

0.688 17.48

1.312 33.32

0.09 2.29

       

34

   

R104

42.000 1066.8

38.000 965.20

0.812 20.62

1.438 36.53

0.09 2.29

       

36

   

R105

44.250 1124.0

40.250 1022.4

0.812 20.62

1.438 36.53

0.09 2.29

Notes -Ring joint gasket dimensions conform to ASME B16.20 (not covered in this summary). -Use Class 600 lb in sizes NPS 1/2 to NPS 31/2 for Class 400 lb. -Use Class 1500 lb in sizes NPS 1/2 to NPS 21/2 for Class 900 lb. -Tolerances are as shown in the table below. 1 The height of the raised portion is equal to the depth of groove dimension L, but is not subject to the tolerances for L. 2 Ring joints with lapped flanges in Classes 300 lb and 600 lb use R30 instead of R31.

Ring joint facing tolerances (ASME/ANSI B16.5 and B16.47)

Dimension

Range

Tolerance

in

mm

L (depth)

All

+0.016, -0

+0.406, -0

M (width)

All

±0.008

±0.203

K (pitch diameter)

All

±0.005

±0.127

 

R < 0.06 in

+0.03, -0

+0.762, -0

R (radius at bottom)

R > 0.06 in

±0.03

±0.762

 

> NPS 26

maximum quoted

D (overall length) for flanges with ring joint

< NPS 10

±0.06

±1.52

> NPS 12

±0.12

±3.05

X

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