What does the term “siphon loop” refer to in gas line installations?

The term "siphon loop" refers to a curved section of piping that is specifically designed to prevent backflow of gas in a system. In gas line installations, it serves a critical role in maintaining the proper flow direction of gas and preventing any potential contamination or disruption caused by reverse flow. This is particularly important in scenarios where the gas supply must travel through varying elevations or where liquid accumulations might occur.

By creating a loop, the design allows for the gas to flow upward on one side of the loop and then downward on the other, ensuring that any liquid residues can be trapped in the loop rather than traveling back into the gas supply line. This function is vital for ensuring the integrity and efficiency of the gas system, as it safeguards against the undesirable effects of backflow.