IS 1239-2 — IS 1239-2 Table 4 — bends 90° and springs (mm)
IS 1239-2 IS 1239-2 Table 4 — bends 90° and springs (mm) — 14 sizes.
| Nominal bore | Bend 90° A approx centre to face (mm) | B (mm) | R approx radius (mm) | Spring 112.5° C centre to face (mm) | Spring 135° D (mm) | Spring 157.5° E (mm) |
|---|---|---|---|---|---|---|
| 6 | 51 | 73 | 32 | 48 | 44 | 44 |
| 8 | 64 | 92 | 41 | 60 | 57 | 54 |
| 10 | 73 | 105 | 48 | 67 | 64 | 60 |
| 15 | 86 | 127 | 57 | 79 | 76 | 73 |
| 20 | 102 | 143 | 73 | 92 | 89 | 86 |
| 25 | 121 | 168 | 89 | 108 | 105 | 102 |
| 32 | 146 | 197 | 108 | 133 | 127 | 124 |
| 40 | 165 | 219 | 127 | 149 | 143 | 140 |
| 50 | 203 | 264 | 159 | 181 | 175 | 168 |
| 65 | 248 | 321 | 197 | 222 | 213 | 206 |
| 80 | 292 | 371 | 232 | 260 | 248 | 241 |
| 100 | 381 | 467 | 308 | 340 | 324 | 318 |
| 125 | 540 | 632 | 460 | 476 | 457 | 444 |
| 150 | 622 | 718 | 540 | 572 | 540 | 527 |
- All dimensions are in millimetres; nominal sizes are nominal bore (mm).
- Threads are to IS 554 (equivalent to BSP / ISO 7-1).
- 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.