Which code covers gas transmission and distribution piping?

Which code covers gas transmission and distribution piping?

• A. ASME B31.3
• B. ASME B31.1
• C. API 5L
• D. ASME B31.8

Answer: (D)

Gas transmission and distribution piping is addressed by ASME B31.8, the code written specifically for those systems. It sets the requirements for design, materials, fabrication, testing, operation, and maintenance of piping that moves natural gas and other gases from sources to customers, including transmission lines and distribution networks. This focus on gas service, safety, and system integrity differentiates it from the other options: B31.3 covers process piping in chemical plants and refineries; B31.1 covers power and industrial piping; and API 5L is a standard for the pipe itself (line pipe) rather than a complete piping code governing the lifecycle of a gas transmission system.

Gas transmission and distribution piping is addressed by ASME B31.8, the code written specifically for those systems. It sets the requirements for design, materials, fabrication, testing, operation, and maintenance of piping that moves natural gas and other gases from sources to customers, including transmission lines and distribution networks. This focus on gas service, safety, and system integrity differentiates it from the other options: B31.3 covers process piping in chemical plants and refineries; B31.1 covers power and industrial piping; and API 5L is a standard for the pipe itself (line pipe) rather than a complete piping code governing the lifecycle of a gas transmission system.