O₂-Slag return safety device (RL)

[Translate to Englisch:] Sauerstoff-Schlackerückbrandsicherung (RL)
[Translate to Englisch:] Technische Zeichnung
  • Alternative to backfire safety device
  • Safety function 1: shut-off in case of extreme heat and slag return by temperature controlled valve
  • Safety function 2: shut-off against gas flow back into the hose
  • Minimum pressure loss, highest oxygen flow (recommended for lances 6 mm - 1/2", in case of low input pressure)
  • To be mounted directly behind the lance holder
  • Working pressure: 40 bar max.

Does not replace the control valve at the lance.

for lances Slag return safety device
lance pipe Ø Outside-Ø Connection (DIN EN 560)
R/BSP R [mm] A1 A2
6 mm → 1/2" 6 → 21,5 G 3/4  G 3/4
3/4" 27 G 1  G 1
1" 34 G 1 1/4  G 1 1/4

You can see the standard versions available from stock. We also develop special designs according to your special requirements.