Union
| Pipe Size | Dimensions in mm | Pressure RatingPSIG (Bar) | Dawsons-TechPart No. | |||
| P | D | E | Px | X | ||
| 1/4 | 9.9 | 9.1 | 22.4 | 26.9 | 8100 (558) | HPU-4PSW |
| 3/8 | 9.9 | 12.4 | 26.2 | 28.4 | 7100 (489) | HPU-6PSW |
| 1/2 | 9.9 | 15.7 | 31.8 | 28.4 | 6800 (468) | HPU-8PSW |
| 3/4 | 13.0 | 20.8 | 37.3 | 44.4 | 5800 (399) | HPU-12PSW |
| 1 | 13.0 | 26.7 | 47.2 | 44.4 | 6100 (420) | HPU-16PSW |