ASME B16.5 socket weld flanges, Class 2500
Every size in the table, in mm, with a 3D model drawn from the same figures. See socket weld flanges for materials, standards and the marking.
3D model
6" Class 2500 socket weld
Key dimensions in mm, ASME B16.5
- O
- Flange diameter
- 485
- Tf
- Flange thickness
- 108
- X
- Hub diameter
- 235
- Y
- Length through hub
- 159
- D
- Depth of socket
- 27
- R
- Raised face diameter
- 215.9
- Tr
- Raised face height
- 7
- W
- Bolt circle (PCD)
- 368.3
- d
- Bolt hole diameter
- 54
- n
- Number of holes
- 8
Dimensions
Units
Swipe the table sideways for every column. Choose a size to show it in the viewer.
| NPSSize | DNNominal size | OFlange diameter | TfFlange thickness | XHub diameter | YLength through hub | DDepth of socket | RRaised face diameter | TrRaised face height | WBolt circle (PCD) | dBolt hole diameter | nNumber of holes | Enquiry list |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 135 | 30.2 | 43 | 47 | 10 | 34.9 | 7 | 88.9 | 22.2 | 4 | ||
| 20 | 140 | 31.8 | 51 | 50 | 11 | 42.9 | 7 | 95.2 | 22.2 | 4 | ||
| 25 | 160 | 35 | 57 | 55 | 13 | 50.8 | 7 | 108 | 25.4 | 4 | ||
| 32 | 185 | 38.1 | 73 | 59 | 14 | 63.5 | 7 | 130.2 | 28.6 | 4 | ||
| 40 | 205 | 44.5 | 79 | 67 | 16 | 73 | 7 | 146 | 31.7 | 4 | ||
| 50 | 235 | 50.9 | 95 | 77 | 17 | 92.1 | 7 | 171.4 | 28.6 | 8 | ||
| 65 | 265 | 57.2 | 114 | 86 | 19 | 104.8 | 7 | 196.8 | 31.7 | 8 | ||
| 80 | 305 | 66.7 | 133 | 99 | 21 | 127 | 7 | 228.6 | 34.9 | 8 | ||
| 100 | 355 | 76.2 | 165 | 115 | 24 | 157.2 | 7 | 273 | 41.3 | 8 | ||
| 125 | 420 | 92.1 | 203 | 137 | 24 | 185.7 | 7 | 323.8 | 47.6 | 8 | ||
| 150 | 485 | 108 | 235 | 159 | 27 | 215.9 | 7 | 368.3 | 54 | 8 | In the viewer | |
| 200 | 550 | 127 | 305 | 185 | 32 | 269.9 | 7 | 438.2 | 54 | 12 | ||
| 250 | 675 | 165.1 | 375 | 236 | 33 | 323.8 | 7 | 539.8 | 66.7 | 12 | ||
| 300 | 760 | 184.2 | 441 | 261 | 40 | 381 | 7 | 619.1 | 73 | 12 |
Dimensions in mm, for reference. Tolerances and full requirements as per the applicable standard. Confirm against your specification before ordering.
Source: Shiv Shakti Machine Tools Flange Catalogue, edition 2026 (draft), page 11. “–” means the catalogue lists no value.
[CONFIRM: table checked and signed off by the owners (unverified)][CONFIRM: whether the flange thickness includes the raised face]