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API 14E : 1991 : R2013
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RECOMMENDED PRACTICE FOR DESIGN AND INSTALLATION OF OFFSHORE PRODUCTION PLATFORM PIPING SYSTEMS
17-02-2021
01-01-2013
Policy
Foreword
Definitions
Symbols
Section 1 - General
Scope
Code for pressure piping
Policy
Industry codes, guides and standards
American Iron and Steel Institute
American National Standards Institute
American Petroleum Institute
American Society for Testing and Materials
National Association of Corrosion Engineers
National Fire Protection Association
Gas Processors Suppliers Association
Hydraulics Institute
Governmental rules and regulations
Demarcation between systems with different pressure
ratings
Corrosion considerations
General
Weight loss corrosion
Sulfide stress cracking
Chloride stress cracking
Application of NACE MR-01-75
Section 2 - Piping design
Pipe grades
Non-corrosive hydrocarbon service
Corrosive hydrocarbon service
Sulfide stress cracking service
Utilities service
Tubing
Sizing criteria - general
Sizing criteria for liquid lines
General
Pump piping
Sizing criteria for single-phase gas lines
General pressure drop equation
Empirical pressure drop
Gas velocity equation
Compressor piping
General notes
Sizing criteria for gas/liquid two-phase lines
Erosional velocity
Minimum velocity
Pressure drop
Pipe wall thicknesses
Joint connections
Expansion and flexibility
Start-up provisions
References
Section 3 - Selection of valves
General
Types of valves
Ball valves
Gate valves
Plug valves
Butterfly valves
Globe valves
Diaphragm (bladder) valves
Needle valves
Check valves
Valve sizing
Valve pressure and temperature ratings
Valve materials
Non-corrosive service
Corrosive service
Chloride stress cracking service
Sulfide stress cracking service
References
Section 4 - Fittings and flanges
General
Welded fittings
Screwed fittings
Branch connections
Flanges
General
Gaskets
Flange protectors
Bolts and nuts
Proprietary connectors
Special requirements for sulfide stress cracking service
Erosion prevention
References
Section 5 - Design considerations for particular piping
systems
General
Wellhead accessory items
Sampling and injection connections
Chokes
Flowline and flowline accessories
Flowline pressure sensor
Flowline orifice fitting
Flowline heat exchanger
Flowline check valve
Flowline support
Production manifolds
General
Manifold branch connections
Manifold valve installation
Process vessel piping
Utility systems
Pneumatic systems
Air systems
Gas systems
Fire water systems
Potable water systems
Sewage systems
Heating fluid and glycol systems
Pressure relief and disposal systems
General
Relief device piping
Relief (disposal) system piping
Drain systems
Pressure drains
Gravity drains
Bridge piping between platforms
Risers
Sampling valves
References
Section 6 - Considerations of related items
General
Layout
Elevations
Piping supports
Other corrosion considerations
Protective coatings for external surfaces
Types of platform piping coating systems
Selection of platform piping coating systems
Risers
Corrosion protection for internal surfaces
Process piping
Water piping
Protective coatings
Compatibility of materials
Non-destructive erosion and/or corrosion surveys
Cathodic protection
Thermal insulation
Noise
Pipe, valves and fittings tables
Inspection, maintenance and repair
Section 7 - Installation and quality control
General
Authorized inspector
Welding
Safety precautions
Welding procedure qualification
Welder qualification
Welding records
Welding requirements
Heat treatment
Examination and inspection
Radiographic inspection
Pressure testing
Hydrostatic tests
Pneumatic tests
Test record
Appendix A - Example problems
Introduction
Flowline piping design
Pump suction piping design
Appendix B - Acceptable butt welded joint design for
unequal wall thicknesses
Appendix C - Example pipe, valves and fittings tables
Appendix D - List of equations
Appendix E - List of figures
Appendix F - List of tables
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