IS 6392 — PN 64 (Table 34) — plate flanges for welding (slip-on plate)
IS 6392 PN 64 (Table 34) — plate flanges for welding (slip-on plate) — 12 sizes.
| Size | A — Pipe OD (mm) | D — Flange OD (mm) | C — Flange (mm) | d1 — Raised face (mm) | f — RF height (mm) | K — Bolt circle (mm) | n — Bolts | L — Hole dia (mm) | Bolt — Size |
|---|---|---|---|---|---|---|---|---|---|
| 50 | 60.3 | 180 | 26 | 102 | 3 | 135 | 4 | 22 | M20 |
| 65 | 76.1 | 205 | 26 | 122 | 3 | 160 | 8 | 22 | M20 |
| 80 | 88.9 | 215 | 30 | 138 | 3 | 170 | 8 | 22 | M20 |
| 100 | 114.3 | 250 | 32 | 162 | 3 | 200 | 8 | 26 | M24 |
| 125 | 139.7 | 295 | 34 | 188 | 3 | 240 | 8 | 30 | M27 |
| 150 | 168.3 | 345 | 36 | 218 | 3 | 280 | 8 | 33 | M30 |
| 175 | 193.7 | 375 | 40 | 260 | 3 | 310 | 12 | 33 | M30 |
| 200 | 219.1 | 415 | 46 | 285 | 3 | 345 | 12 | 36 | M33 |
| 250 | 273 | 470 | 54 | 345 | 3 | 400 | 12 | 36 | M33 |
| 300 | 323.9 | 530 | 62 | 410 | 4 | 460 | 16 | 36 | M33 |
| 350 | 355.6 | 600 | 72 | 465 | 4 | 525 | 16 | 39 | M36 |
| 400 | 406.4 | 670 | 78 | 535 | 4 | 585 | 16 | 42 | M39 |
- All dimensions are in millimetres.
- The PN 64 tables start at DN 50; for DN 10–40 IS 6392 refers to the PN 100 dimensions.
- IS 6392 drilling follows the ISO/DIN metric series, so IS 6392 flanges generally mate with EN 1092-1 / DIN flanges of the same PN — check the raised face and thickness for your flange type.
- Values are nominal dimensions from the standard; a dash (—) means the value is not listed. Verify against the current edition before design, purchase or fabrication.