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Siemens LFL and LAL Flame Safeguard

Siemens LFL and LAL Flame Safeguard

  • For gas, oil or dual-fuel forced draft burners of medium to high capacity
  • For multistage or modulating burners in intermittent operation
  • With checked air damper control
  • Flame supervision
    • with UV detectors QRA…
    • and ionization probe
  • Burner control for oil burner or gas burners



Siemens LFL and LAL burner controls provide burner sequencing and flame monitoring for the supervision of individual gas, oil, or dual fueled burners. With an incomparable record for safety and reliability, the economical LFL continues to be one of the most popular, globally approved flame safeguard controls.

Technical Documentation

Siemens LFL and LAL Flame Safeguard Technical Documentation