What is the primary purpose of using a sediment trap in gas piping?

The primary purpose of using a sediment trap in gas piping is to collect and remove moisture and contaminants. Sediment traps are designed to capture any debris, such as dirt, rust, and water that might accumulate in the gas line, preventing these substances from entering the appliances that use the gas. This is vital for maintaining the safe and efficient operation of gas appliances, as contaminants can lead to blockages, malfunctions, or even dangerous situations like gas leaks.

Unlike filtering gas for odorant, which is not a function of the sediment trap, the trap's focus is strictly on the removal of physical impurities. Additionally, it does not work to increase gas pressure or regulate gas flow; rather, it serves as a preventative measure to ensure that the gas supplied to appliances remains clean and free of preventable issues related to moisture and sediment buildup.