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API SPEC 6D 23rd Edition, April 2008
Complete Document
Specification for Pipeline Valves
Includes all amendments and changes through Addendum 2, August 2011
Additional Comments: GX6D23
Page Count:108
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This International Standard specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.

This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723).

This International Standard is not applicable to valves for pressure ratings exceeding PN 420 (Class 2 500).