What covers refrigeration piping?

• A. B31.5
• B. B31.3
• C. ASME Section I
• D. API 650

Answer: (A)

The main idea being tested is which ASME standard applies to refrigeration piping. Refrigeration piping is covered by ASME B31.5, the Refrigeration Piping and Heat Transfer Components standard. This code is specifically written for piping systems that carry refrigerants in mechanical refrigeration setups, including the design, materials, fabrication, testing, and inspection requirements. It also addresses special considerations for refrigerant service, such as joints, insulation, and leak control, which are distinct from other piping domains.

The other options don’t fit because they address different areas: B31.3 is Process Piping, which covers piping for chemical and hydrocarbon processes but isn’t specialized for refrigeration systems; ASME Section I governs boilers and their associated piping; API 650 covers welded tanks for storage. Each of these serves a different scope, whereas refrigeration piping is specifically within the realm of B31.5.