The lance must be ignited by an outside source e. g., a cutting torch. The only way to extinguish the lance is to turn the oxygen off. To keep the flame from burning up the oxygen hose, it is necessary to secure the oxygen when the lance isanbsp;...
|Title||:||U.S. Navy Underwater Cutting & Welding Manual|
|Author||:||Department Of Defense|
|Publisher||:||Jeffrey Frank Jones -|