What is the result of using too high a gas pressure in an oxyfuel cutting system?

Using too high a gas pressure in an oxyfuel cutting system creates a hazardous situation as it can lead to a backfire or flashback. When the pressure is elevated beyond the optimal levels, it can cause an increase in the velocity of the gas flow. This rapid flow may lead to instability in the flame, generating conditions that are conducive to backfires, where the flame travels back into the torch or the fuel gas supply line. Flashbacks, which are more dangerous, can occur when the flame propagates back through the system, potentially causing damaging or explosive situations. Maintaining appropriate gas pressure is crucial to ensure safe operation, as it allows for stable flame characteristics needed for effective cutting while minimizing risks associated with an uncontrolled fire hazard.