ASME B16.5 - Class 150
LAP JOINT FLANGES
| Nominal size | O | C | X | Y | B | R | Number of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | Weight | |
| in mm |
1/2" | 3.50 88.9 | 0.44 11.2 | 1.19 30.2 | 0.62 15.7 | 0.90 22.9 | 0.12 3.0 | 4 | 0.62 15.7 | 1/2 12.7 | 2.38 60.5 | 1 0.5 |
| in mm |
3/4" | 3.88 98.6 | 0.50 12.7 | 1.50 38.1 | 0.62 15.7 | 1.11
28.2 |
0.12
3.0 |
4 | 0.62
15.7 |
1/2 12.7 | 2.75
69.9 |
2 1 |
| in mm |
1" | 4.25 108.0 | 0.56 14.2 | 1.94 49.3 | 0.69 17.5 | 1.38
35.1 |
0.12
3.0 |
4 | 0.62
15.7 |
1/2 12.7 | 3.12 79.2 | 2 1 |
| in mm |
1 1/4" | 4.62 117.3 | 0.62 15.7 | 2.31 58.7 | 0.81 20.6 | 1.72
43.7 |
0.19
4.8 |
4 | 0.62
15.7 |
1/2 12.7 | 3.50
88.9 |
3 1 |
| in mm |
1 1/2" | 5.00 127.0 | 0.69 17.5 | 2.56 65.0 | 0.88 22.4 | 1.97
50.0 |
0.25
6.4 |
4 | 0.62
15.7 |
1/2 12.7 | 3.88 98.6 | 3 1 |
| in mm |
2" | 6.00 152.4 | 0.75 19.1 | 3.06 77.7 | 1.00 25.4 | 2.46
62.5 |
0.31
7.9 |
4 | 0.75 19.1 |
5/8
15.9 |
4.75 120.7 | 5 2 |
| in mm |
3" | 7.50 190.5 | 0.94 23.9 | 4.25 108.0 | 1.19 30.2 | 3.60
91.4 |
0.38
9.7 |
4 | 0.75
19.1 |
5/8 15.9 | 6.00
152.4 |
8 4 |
| in mm |
3 1/2" | 8.50 215.9 | 0.94 23.9 | 4.81 122.2 | 1.25 31.8 | 4.10
104.1 |
0.38
9.7 |
8 | 0.75
19.1 |
5/8
15.9 |
7.00 177.8 | 11 5 |
| in mm |
4" | 9.00 228.6 | 0.94 23.9 | 5.31 134.9 | 1.31 33.3 | 4.60
116.8 |
0.44 11.2 | 8 | 0.03 0.76 |
7.50 190.5 | 3.12 79.25 |
13 6 |
| in mm |
5" | 10.00 254.0 | 0.94 23.9 | 6.44 163.6 | 1.44 36.6 | 5.69
144.5 |
0.44
11.2 |
8 | 0.88
22.4 |
3/4
19.1 |
8.50 215.9 | 15 7 |
| in mm |
6" | 11.00 279.4 | 1.00 25.4 | 7.56 192.0 | 1.56 39.6 | 6.75
171.5 |
0.50
12.7 |
8 | 0.88
22.4 |
3/4 19.1 | 9.50
241.3 |
19 9 |
| in mm |
8" | 13.50 342.9 | 1.12 28.4 | 9.69 246.1 | 1.75 44.5 | 8.75
222.3 |
0.50
12.7 |
8 | 0.88
22.4 |
3/4 19.1 | 11.75 298.5 | 30 14 |
| in mm |
10" | 16.00 406.4 | 1.19 30.2 | 12.00 304.8 | 1.94 49.3 | 10.92
277.4 |
0.50
12.7 |
12 | 1.00
25.4 |
7/8
22.2 |
14.25 362.0 | 43 20 |
| in mm |
12" | 19.00 482.6 | 1.25 31.8 | 14.38 365.3 | 2.19 55.6 | 12.92
328.2 |
0.50
12.7 |
12 | 1.00
25.4 |
7/8 22.2 | 17.00
431.8 |
64 29 |
| in mm |
14" | 21.00 533.4 | 1.38 35.1 | 15.75 400.1 | 3.12 79.2 | 14.18
360.2 |
0.50
12.7 |
12 | 1.12
28.4 |
1 25.4 |
18.75 476.3 | 90 41 |
| in mm |
16" | 23.50 596.9 | 1.44 36.6 | 18.00 457.2 | 3.44 87.4 | 16.19
411.2 |
0.50
12.7 |
16 | 1.12
28.4 |
1 25.4 |
21.25 539.8 | 98 44 |
| in mm |
18" | 25.00 635.0 | 1.56 39.6 | 19.88 505.0 | 3.81 96.8 | 18.20
462.3 |
0.50
12.7 |
16 | 1.25
31.8 |
1 1/8 28.6 | 22.75
577.9 |
130 59 |
| in mm |
20" | 27.50 698.5 | 1.69 42.9 | 22.00 558.8 | 4.06 103.1 | 20.25
514.4 |
0.50
12.7 |
20 | 1.25
31.8 |
1 1/8 28.6 | 25.00 635.0 | 165 75 |
| in mm |
24" | 32.00 812.8 | 1.88 47.8 | 26.12 663.4 | 4.38 111.3 | 24.25
616.0 |
0.50
12.7 |
20 | 1.38
35.1 |
1 1/4 31.8 | 29.50 749.3 | 220
110 |
Disclaimer: These dimensions are provided for reference material only.