| Reference | Model | P. max | Opening | L / min | Thread |
| B21 | B2-1 | 500 bar | 0.5 bar | fifteen | 1/4 " |
| B22 | B2-2 | 500 bar | 0.5 bar | twenty | 3/8 " |
| B23 | B2-3 | 500 bar | 0.5 bar | 30 | 1/2 " |
| B24 | B2-4 | 500 bar | 0.5 bar | Four. Five | 3/4 " |
| B25 | B2-5 | 500 bar | 0.5 bar | 75 | 1" |
| B26 | B2-6 | 500 bar | 0.5 bar | 120 | 1 "1/4 |
| B27 | B2-7 | 500 bar | 0.5 bar | 160 | 1 "1/2 |