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About This Item


Full Description

Includes Annex F, revised in March 2005.

API Specification 6D is the (proposed) national adoption of ISO 14313: 1999, Petroleum and Natural Gas Industries-Pipeline Transportation Systems-Pipeline Valves. This International Standard specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems.

Valves for pressure ratings exceeding PN 420 (Class 2500) are not covered by this International Standard. Annex A of this Spec 6D provides guidelines to assist the purchaser with valve type selection and specification of specific requirements when ordering valves.


Document History

  1. API Spec 6D

    Specification for Valves, Twenty-Fifth Edition, Includes Errata 1 (2021)

    • Most Recent
  2. API Spec 6D

    Specification for Pipelineand Piping Valves, Twenty-Fourth Edition, Includes Errata 1 (2014), Errata 2 (2014), Errata 3 (2015) and 4 (2015), and Addendum 1 (2015), Errata 5 (2015), Errata 6 (2015), Errata 7 (2016), Errata 8 (2016), Errata 9 (2017), Errata 10 (2021) and Addendum 2 (2016)

    • Historical Version
  3. API Spec 6D

    Specification for Pipeline Valves, Twenty-third Edition (Identical to ISO 14313:2007), Includes Errata 1, 2, 3, 4, 5, and 6 (2011) and Addenda 1, 2 (2011), 3 (2012)

    • Historical Version
  4. API Spec 6D


    Specification for Pipeline Valves

    • Historical Version
  5. API 6D Errata

    Supplement 2 & Errata - Specification for Pipeline Valves (Gate, Plug, Ball and Check Valves)

    • Historical Version
  6. API Spec 6D-1994

    Specification for Pipeline Valves (Gate, Plug, Ball and Check Valves)

    • Historical Version

Amendments, rulings, supplements, and errata

  1. API Spec 6D Annex F


    Specification for Pipeline Valves