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What is ASME B31?

ASME B31 is a series of codes developed by the American Society of Mechanical Engineers (ASME) that provide guidelines and requirements for the design, construction, inspection, and testing of piping systems. The series covers various types of piping systems used in different industries. Key parts of the ASME B31 series include:

  1. ASME B31.1Power Piping: Covers piping systems typically found in electric power generating stations, industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems.
  2. ASME B31.3Process Piping: Pertains to piping typically found in chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants, as well as related processing plants and terminals.
  3. ASME B31.4Pipeline Transportation Systems for Liquids and Slurries: Covers piping systems for transporting liquids, including oil and gas, carbon dioxide, slurries, and other liquid chemicals.
  4. ASME B31.5Refrigeration Piping and Heat Transfer Components: Provides requirements for piping and heat transfer systems in refrigeration and heat transfer processes.
  5. ASME B31.8Gas Transmission and Distribution Piping Systems: Covers the design and operation of gas transmission and distribution pipelines and related facilities.
  6. ASME B31.9Building Services Piping: Applies to piping systems in commercial, institutional, and public buildings and multi-unit residences.
  7. ASME B31.12Hydrogen Piping and Pipelines: Focuses on piping systems for hydrogen service, including the transportation and distribution of hydrogen gas.

These codes ensure the safety, reliability, and integrity of piping systems used in various industrial applications, providing guidelines for materials, design, fabrication, assembly, erection, examination, testing, and inspection.