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

The purpose of a sediment trap in gas piping is to collect contaminants and moisture before they reach the appliance. Gas systems can sometimes carry impurities such as dirt, rust, or moisture, which can cause issues like clogs or corrosion in appliances designed to use natural gas or propane. By incorporating a sediment trap into the design, these contaminants are effectively collected and prevented from entering the gas lines feeding the appliance, ensuring that the flow of gas remains clean and that the appliance operates correctly and safely.

This is particularly important as moisture can lead to rust formation and other issues that could potentially impair the function of gas appliances or even lead to dangerous situations. Ensuring that these potential issues are mitigated before the gas reaches the appliance helps maintain system efficiency and longevity.