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Piping Overview – Codes & Standards

oil and gas piping codes and standards asme b31.3

Piping is governed by the following codes:

  • ASME B31.1 for power plant piping.
  • ASME B31.3 for chemical process plant piping.
  • ASME B31.4 for oil pipelines.
  • ASME B31.5 for refrigeration piping.
  • ASME B31.8 for gas pipelines.
  • ASME B31.9 for gas, steam and water piping.
  • ASME B31.11 for for slurry transportation piping.
  • AWWA for water works piping.
  • NFPA-13 and -24 for fire protection systems.
  • Each code has different set of rules & allowable limits.
  • Use of appropriate code for safe & economic design.
  • Wrong selection of the code can cost the project several extra million riyals.


  • Set forth minimum mandatory requirements for design, material, fabrication, erection, test and inspection of the piping system.
  • The ASME develops codes for pressure piping.
  • The first edition of code for pressure piping was published in 1935 under the ANSI committee which later changed to ASME.


  • Contain design and construction rules for piping components.
  • Compliance to standards is the owner’s prerogative.

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  1. thanks ji, honestly saying this blog assist me ,can you give some more details about ASME.B31.8 standard

  2. this site is very useful and i have got many information’s related to oil and gas field.

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