| ITEM | PIPE IㆍD | Ø D | THREAD | L(㎜) | CODE |
| 12 × 1/2" | 12.0 | 8.8 | PT 1/2" | 33 | SS-1 |
| 15 × 1/2" | 15.0 | 13.5 | PT 1/2" | 34.2 | SS-2 |
| 20 × 3/4" | 20.0 | 17.0 | PT 3/4" | 39 | SS-3 |
| 20 × 1" | 25.0 | 22.0 | PT 1" | 44 | SS-4 |
| 20 × 1 1/4" | 30.0 | 27.0 | PT 1 1/4" | 46.8 | SS-5 |
| 20 × 1 1/2" | 40.0 | 35.0 | PT 1 1/2" | 49.8 | SS-6 |
