ISO 14723:2009 Preview
Petroleum and natural gas industries -- Pipeline transportation systems -- Subsea pipeline valves
This standard was last reviewed and confirmed* in 2015.
*Therefore this version remains current
ISO 14723:2009 specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for subsea application in offshore pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries.
ISO 14723:2009 is not applicable to valves for pressure ratings exceeding PN 420 (Class 2500).