API SPEC 6D – Specification For Pipeline Valves (Special Order)

Usually ships 5-7 business days SPECIAL ORDER

 Specification for Valves, Twenty-Fifth Edition, Includes Errata 1 (2021), Errata 2 (2022), Errata 3 (2023), and Addendum 1 (2023)

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.