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
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 |
|