ASME B16.11 Socket Weld Cap
A Socket Weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a Valve, fitting or flange. In contrast to butt weld fittings,socket weld fittings are mainly used for small pipe diameters (Small Bore Piping); generally for piping whose nominal diameter is NPS 2 or smaller. To join pipe to Valves and fittings or to other sections of pipe, fillet-type seal welds be used.
ASME B16.11 Socket Weld Cap Dimensions
| Class | DN | NPS | B | D | C(Ave) | C(Min) | J | K |
| 3000 | 6 | 1/8″ | 10.8 | 6.9 | 3.18 | 3.18 | 9.5 | 4.8 |
| 8 | 1/4″ | 14.2 | 9.3 | 3.78 | 3.3 | 9.5 | 4.8 | |
| 10 | 3/8″ | 17.6 | 12.6 | 4.01 | 3.5 | 9.5 | 4.8 | |
| 15 | 1/2″ | 21.8 | 15.8 | 4.67 | 4.09 | 9.5 | 6.4 | |
| 20 | 3/4″ | 27.2 | 21 | 4.9 | 4.27 | 12.5 | 6.4 | |
| 25 | 1″ | 33.9 | 26.7 | 5.69 | 4.98 | 12.5 | 9.6 | |
| 32 | 1-1/4″ | 42.7 | 35.1 | 6.07 | 5.28 | 12.5 | 9.6 | |
| 40 | 1-1/2″ | 48.8 | 40.9 | 6.35 | 5.54 | 12.5 | 11.2 | |
| 50 | 2″ | 61.2 | 52.5 | 6.93 | 6.04 | 16 | 12.7 | |
| 65 | 2-1/2″ | 73.9 | 62.7 | 8.76 | 7.67 | 16 | 15.7 | |
| 80 | 3″ | 89.8 | 78 | 9.52 | 8.3 | 16 | 19 | |
| 100 | 4″ | 115.2 | 102.3 | 10.69 | 9.35 | 19 | 22.4 | |
| 6000 | 6 | 1/8″ | 10.8 | 4 | 3.96 | 3.43 | 9.5 | 6.4 |
| 8 | 1/4″ | 14.2 | 6.4 | 4.6 | 4.01 | 9.5 | 6.4 | |
| 10 | 3/8″ | 17.6 | 9.2 | 5.03 | 4.37 | 9.5 | 6.4 | |
| 15 | 1/2″ | 21.8 | 11.8 | 5.97 | 5.18 | 9.5 | 7.9 | |
| 20 | 3/4″ | 27.2 | 15.6 | 6.96 | 6.04 | 12.5 | 7.9 | |
| 25 | 1″ | 33.9 | 20.7 | 7.92 | 6.93 | 12.5 | 11.2 | |
| 32 | 1-1
/4″ |
42.7 | 29.5 | 7.92 | 6.93 | 12.5 | 11.2 | |
| 40 | 1-1/2″ | 48.8 | 34 | 8.92 | 7.8 | 12.5 | 12.7 | |
| 50 | 2″ | 61.2 | 42.9 | 10.92 | 9.5 | 16 | 15.7 | |
| 65 | 2-1/2″ | 73.9 | – | – | – | 16 | 19 | |
| 80 | 3″ | 89.8 | – | – | – | 16 | 22.4 | |
| 100 | 4″ | 115.2 | – | – | – | 19 | 28.4 | |
| 9000 | 6 | 1/8″ | 10.8 | – | – | – | 9.5 | – |
| 8 | 1/4″ | 14.2 | – | – | – | 9.5 | – | |
| 10 | 3/8″ | 17.6 | – | – | – | 9.5 | – | |
| 15 | 1/2″ | 21.8 | 6.4 | 9.35 | 8.18 | 9.5 | 11.2 | |
| 20 | 3/4″ | 27.2 | 11.1 | 9.78 | 8.56 | 12.5 | 12.7 | |
| 25 | 1″ | 33.9 | 15.2 | 11.38 | 9.96 | 12.5 | 14.2 | |
| 32 | 1-1/4″ | 42.7 | 22.8 | 12.14 | 10.62 | 12.5 | 14.2 | |
| 40 | 1-1/2″ | 48.8 | 28 | 12.7 | 11.12 | 12.5 | 15.7 | |
| 50 | 2″ | 61.2 | 38.2 | 13.84 | 12.12 | 16 | 19 | |
| 65 | 2-1/2″ | 73.9 | – | – | – | 16 | – | |
| 80 | 3″ | 89.8 | – | – | – | 16 | – | |
| 100 | 4″ | 115.2 | – | – | – | 19 | – |
