Opis
| symbol | gwint | oznaczenie wg Rastelli-Raccordi |
| XEL 1/4” | 1/4″ | 60.59.04.04 |
| XEL 3/8” | 3/8” | 60.59.06.06 |
| XEL 1/2” | 1/2” | 60.59.08.08 |
| XEL 3/4” | 3/4” | 60.59.12.12 |
| XEL 1” | 1” | 60.59.16.16 |
| XEL 1 1/4” | 1 1/4” | 60.59.20.20 |
| XEL 1 1/2” | 1 1/2” | 60.59.24.24 |
XEL – złączka trójnikowa nastawna niesymetryczna.
| symbol | gwint | oznaczenie wg Rastelli-Raccordi |
| XEL 1/4” | 1/4″ | 60.59.04.04 |
| XEL 3/8” | 3/8” | 60.59.06.06 |
| XEL 1/2” | 1/2” | 60.59.08.08 |
| XEL 3/4” | 3/4” | 60.59.12.12 |
| XEL 1” | 1” | 60.59.16.16 |
| XEL 1 1/4” | 1 1/4” | 60.59.20.20 |
| XEL 1 1/2” | 1 1/2” | 60.59.24.24 |