![[Translate to Englisch:] Sauerstoff-Rückbrandsicherung](/fileadmin/_processed_/4/e/csm_rb_f9bf486773.jpg)
![[Translate to Englisch:] Technische Zeichnung](/fileadmin/_processed_/3/2/csm_rb_zeichnung_1abbede2c7.png)
- Safety function 1: shut-off in case of high heat radiation, backfiring and slag return by means of spring-loaded front valveand sintered metal
- Safety function 2: prevents gas flow back into the hose by means of spring-loaded behind valve
- Safety function 3: stops oxygen flow in case of incorrectly fitted lance pipe
- To be mounted directly behind the lance holder
- Working pressure: 40 bar max.
Does not replace the control valve at the lance.
| for lances | Backfire safety device | ||
|---|---|---|---|
| lance pipe Ø | Outside-Ø | connection (DIN EN 560) | |
| R/BSP | R [mm] | A1 | A2 |
| 6 mm | 6 | G 3/4 | G 3/4 |
| 8 mm | 8 | G 3/4 | G 3/4 |
| 1/8" | 10 | G 3/4 | G 3/4 |
| 1/4" | 13,5 | G 3/4 | G 3/4 |
| 3/8" | 17 | G 3/4 | G 3/4 |
| 1/2" | 21,5 | G 3/4 | G 3/4 |
![[Translate to Englisch:] O₂-Lanzenhalter (B)](/fileadmin/_processed_/4/6/csm_b_ca64291dd7.jpg)
