When should every branch supply line of a piping system be purged?

Every branch supply line of a piping system should be purged always to ensure safety, efficiency, and proper functioning of the gas system. Purging is the process of removing air or other non-combustible gases from the piping system before introducing fuel gas. This is necessary because the presence of air in gas lines can create a hazardous situation, including the risk of explosion or fire when the gas is ignited.

By purging every branch supply line, technicians can ensure that the system is free of air, moisture, and any contaminants that could affect performance or pose safety risks. This practice is vital not only during the initial installation of the system but also whenever maintenance work is performed or when any changes are made to the piping arrangement.

Maintaining proper purging protocols helps in the effective operation of the gas system and contributes to the overall safety of its use, highlighting the importance of rigorous adherence to these procedures throughout the lifecycle of the piping system.