Where are sediment traps REQUIRED in a natural gas piping system

While sediment traps can help prevent debris from affecting the system, placing them at the outlet of the gas meter does not effectively address sediment that may accumulate after the meter. This location is not where the sediment would typically impact appliance operation, making it less suitable for ensuring the safety and efficiency of gas delivery to equipment.

Sediment traps may be useful at pipe branches, but stating they are required only at these locations overlooks the necessity of protecting the end-use appliances. Sediment can still accumulate downstream, causing issues at the using equipment, which is why traps are specifically required there for optimal functionality.

Placing sediment traps near a union does not adequately address the purpose of collecting sediment before it reaches the appliances. Unions are joints in the piping system and do not align with the critical need to prevent debris from entering the using equipment, where the risk of damage or inefficiency is most pronounced.