Union (Tube Socket Weld)
| TubeOD | Dimensions in mm | Pressure RatingPSIG (Bar) | Dawsons-TechPart No. | |||
| T | D | Min. Opening | I | L | ||
| E | ||||||
| 1/4 | 12.2 | 4.8 | 7.1 | 19.1 | 10,300 (700) | U-4TSW |
| 3/8 | 15.2 | 7.1 | 7.9 | 22.4 | 8100 (550) | U-6TSW |
| 1/2 | 18.5 | 10.4 | 9.7 | 26.9 | 6600 (450) | U-8TSW |
| 3/4 | 28.4 | 15.7 | 11.2 | 33.3 | 5900 (400) | U-12TSW |
| 1 | 34.6 | 22.4 | 15.7 | 36.6 | 5600 (380) | U-16TSW |