Describe the use of flashback arresters in oxy-acetylene welding equipment. - Leaving Cert Engineering - Question 1 - 2011

Flashback arrestors are critical safety devices used in oxy-acetylene welding equipment. Their primary function is to prevent the flame from traveling back through the gas hose into the cylinder. This is achieved by providing a barrier that extinguishes the flame if it attempts to propagate back into the system.

By stopping the flame from reaching the gas cylinder, flashback arrestors play a crucial role in preventing potential gas cylinder ignition, which could lead to catastrophic explosions or fires. In summary, the use of flashback arresters enhances the safety of welding operations by mitigating the risks associated with backfires.