In gas welding, some hazards happen from fire and explosion. Explosion or fire can happen while using gas welding due to certain reasons:
1. If welder does not handle lighted blow pipe carefully, it can cause burns to him or other workers.
2. If blowpipe is used too close to combustible material.
3. Gas leakage from hoses, valves or other equipments.
4. Misuse of oxygen.
5. Backfires and flashbacks.
Lighted blowpipes are dangerous equipment which can burn the user badly. It can also injure other people and set flammable materials on fire. By following these precautionary steps you can prevent injury
• Always work in a safe location which is away from other people.
• Before starting your work, do wear welding helmet, protective clothes and gauntlets to protect yourself from fire.
• Clamp the work piece, do not hold it by hand.
• Once your work is over, switch off the blowpipe.