When should the purging of hose lines of an oxygen/acetylene torch occur?

The purging of hose lines for an oxygen/acetylene torch is typically recommended when securing the rig for the day. This step is important as it ensures that any residual gases left in the hoses are safely expelled before the equipment is stored. This practice minimizes the risk of fire or explosion while the equipment is not in use, as even a small amount of gas remaining in the hoses could pose a hazard.

Performing this purging at the end of the day is crucial, as it allows for a thorough check of the system and ensures that the equipment is safe for storage. It contributes to maintaining safety standards and prolongs the life of the hoses and equipment by preventing the buildup of gases and potential degradation caused by leaving gas in the lines.

Purging before starting a project, during operation, or as a part of daily maintenance does not provide the same level of safety assurance for the equipment when it is not actively in use. Each of these times serves a different purpose in the overall safety and operational protocols for oxy-acetylene torches, but purging before securing is the specific action aimed at minimizing risks when the equipment is stored.