ASME B31.5-2001
Refrigeration piping and heat transfer components

Scope: This Code prescribes requirements for the materials, design, fabrication, assembly, erection, test, and inspection of refrigerant, heat transfer components, and secondary coolant piping for temperatures as low as -320φF (-196φC), whether erected on the premises or factory assembled, except as specifically excluded in the following paragraphs. Users are advised that other piping Code Sections may provide requirements for refrigeration piping in their respective jurisdictions. This Code shall not apply to: (a) any self- contained or unit systems subject to the requirements of Underwriters Laboratories or other nationally recognized testing laboratory: (b) water piping; (c) piping designed for external or internal gage pressure not exceeding 15 psi (105 kPa) regardless of size; or (d) pressure vessels, compressors, or pumps, but does include all connecting refrigerant and secondary coolant piping starting at the first joint adjacent to such apparatus.

ASME B31.5-2001 history

2023 ASME B31.5-2022 Refrigeration Piping and Heat Transfer Components - ASME Code for Pressure Piping, B31
2020 ASME B31.5-2019 Refrigeration Piping and Heat Transfer Components
2016 ASME B31.5-2016 Refrigeration Piping and Heat Transfer Components
2013 ASME B31.5-2013 Refrigeration Piping and Heat Transfer Components
2010 ASME B31.5-2010 Refrigeration Piping and Heat Transfer Components
2006 ASME B31.5-2006 Refrigeration Piping and Heat Transfer Components
2001 ASME B31.5-2001 Refrigeration piping and heat transfer components
1994 ASME B31.5 INTERPRETATIONS-1994 Interpretations to B31.5-1992 Refrigreration Piping Includes Interpretation No. 5
1992 ASME B31.5-1992 Refrigeration piping
1987 ASME B31.5-1987 Refrigeration Piping and Heat Transfer Components
1983 ASME B31.5-1983 Refrigeration Piping and Heat Transfer Components
1974 ASME B31.5-1974 Refrigeration Piping and Heat Transfer Components
1966 ASME B31.5-1966 Refrigeration Piping and Heat Transfer Components