This is variation of 90° bend that allows a thermometer or measuring probe to be inserted axially in to the line.
| DN | DN 1 | L | L 1 | Type | Reference | |
|---|---|---|---|---|---|---|
| 40 | 25 | 225 | 150 | A | NSPBT 1.5 |  |
| 50 | 25 | 225 | 150 | A | NSPBT 2 | |
| 80 | 25 | 280 | 200 | A | NSPBT 3 | |
| 100 | 25 | 330 | 250 | B | NSPBT 4 | |
| 150 | 25 | 340 | 250 | B | NSPBT 6 | |
| 225 | 25 | 480 | 375 | B | NSPBT 9 | |
| 300 | 25 | 550 | 450 | B | NSPBT 12 |
