A subsequent investigation revealed that the torch was not equipped with a flashback arrestor check valve. As a result, the fire traveled through the hose into the compressed cylinder. Had the supervisor and crew been trained properly to look for the check valve, this incident might not have occurred.
Welding, cutting and brazing activities constitute dangerous work. They involve such life-threatening hazards as fire, toxic fumes, burns, explosions, electric shock, radiation, noise and heat stress. In order to help avoid situations like the one in the example above, here are six key areas to concentrate on when dealing with welding safety: