Weld Ring
| Tube OD | Dimensions in mm | Dawsons-TechPart No. | |||
| T | E | M | N | Tx | |
| 1/4 | 5.1 | 0.51 | 0.25 | 7.1 | HPWR-4 |
| 3/8 | 8.1 | 0.51 | 0.25 | 10.4 | HPWR-6 |
| 1/2 | 10.7 | 0.51 | 0.25 | 13.7 | HPWR-8 |
Tube Butt Weld Fittings
| Tube OD | Dimensions in mm | Dawsons-TechPart No. | |||
| T | E | M | N | Tx | |
| 1/4 | 5.1 | 0.51 | 0.25 | 7.1 | HPWR-4 |
| 3/8 | 8.1 | 0.51 | 0.25 | 10.4 | HPWR-6 |
| 1/2 | 10.7 | 0.51 | 0.25 | 13.7 | HPWR-8 |