API 6D :2015

1 Scope
2 Normative References
3 Terms, Definitions, Acronyms, Abbreviations,
   Symbols, and Units
4 Valve Types and Configurations
5 Design
6 Materials
7 Welding
8 Quality Control
9 Pressure Testing
10 Coating/Painting
11 Marking
12 Preparation for Shipment
13 Documentation
14 Facility Requirements
Annex A (informative) - API Monogram Program Use of
        the API Monogram by Licensees
Annex B (informative) - Valve Configurations
Annex C (normative) - Valve End-to-end and Face-to-face
        Dimensions
Annex D (normative) - Valve End-to-end and Face-to-face
        Dimensions
Annex E (informative) - API 20 Series Supply Chain Management
Annex F (normative) - Qualification of Heat-treating Equipment
Annex G (normative) - Requirements for Nondestructive
        Examination
Annex H (normative) - Supplementary Test Requirements
Annex I (informative) - Requirements for Extended Hydrostatic
        Shell Test Duration and Records Retention
        for Valves in Jurisdictional Pipeline Systems
Annex J (normative) - Quality Specification Level (QSL) for
        Pipeline Valves
Annex K (informative) - Isolation Valve Features
Annex L (normative) - External Coating for End Connections
Annex M (informative) - Marking Example
Annex N (informative) - Supplementary Documentation
        Requirements
Annex O (informative) - Purchasing Guidelines
Bibliography

Describes the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in pipeline and piping systems for the petroleum and natural gas industries.