Series 6: Valves and Wellhead Equipment

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  1. MOST RECENT

    API Spec 6A Addendum 2▹

    Addendum 2 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    Amendment by American Petroleum Institute, 11/01/2012.

    Languages: English

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  2. MOST RECENT

    API Spec 6A Addendum 2▹

    Addendum to Specification for Wellhead and Tree Equipment, Twenty-First Edition

    Amendment by American Petroleum Institute, 06/01/2021.

    Languages: English

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  3. MOST RECENT

    API Spec 6A Addendum 3▹

    Addendum 3 to Specification for Wellhead and Tree Equipment, Twenty-First Edition

    Amendment by American Petroleum Institute, 08/01/2022 in Chinese, English.

    Languages: Chinese,English

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  4. MOST RECENT

    API Spec 6A Addendum 3▹

    Addendum 3 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    Amendment by American Petroleum Institute, 03/01/2013.

    Languages: English

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  5. MOST RECENT

    API Spec 6A Addendum 4▹

    Addendum 4 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    Amendment by American Petroleum Institute, 06/01/2016.

    Languages: English

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  6. MOST RECENT

    API Spec 6A Addendum 4▹

    Addendum 4 to Specification for Wellhead and Tree Equipment, Twenty-First Edition

    Amendment by American Petroleum Institute, 11/01/2024.

    Languages: English

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  7. HISTORICAL

    API Spec 6A Errata 1▹

    This document has been replaced. View the most recent version.

    Errata to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    standard by American Petroleum Institute, 01/01/2011.

    Languages: English

    Historical Editions: API Spec 6A Errata 8 (2016), API Spec 6A Errata 7 (2014), API Spec 6A Errata 6 (2014), API Spec 6A Errata 5 (2013), API Spec 6A Errata 4 (2013), API Spec 6A Errata 3 (2013), API Spec 6A Errata 2 (2011)

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  8. MOST RECENT

    API Spec 6A Errata 1▹

    Errata to Specification for Wellhead and Tree Equipment, Twenty-First Edition

    Amendment by American Petroleum Institute, 04/01/2019.

    Languages: English

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  9. MOST RECENT

    API Spec 6A Errata 1 Thru 10▹

    Errata 10 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    Amendment by American Petroleum Institute, 08/01/2016.

    Languages: English

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  10. HISTORICAL

    API Spec 6A Errata 2▹

    This document has been replaced. View the most recent version.

    Errata 2 to Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition (ISO 10423:2009 Modification)

    standard by American Petroleum Institute, 11/01/2011.

    Languages: English

    Historical Editions: API Spec 6A Errata 8 (2016), API Spec 6A Errata 7 (2014), API Spec 6A Errata 6 (2014), API Spec 6A Errata 5 (2013), API Spec 6A Errata 4 (2013), API Spec 6A Errata 3 (2013), API Spec 6A Errata 1 (2011)

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