00/707848 DC : DRAFT APR 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
EN ISO 14723 - PETROLEUM AND NATURAL GAS INDUSTRIES - PIPELINE TRANSPORTATION SYSTEMS - SUBSEA PIPELINE VALVES
06-03-2002
23-11-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
4.1 Symbols
4.2 Abbreviations
5 Valve types and configurations
5.1 Valve types
5.2 Valve configuration
6 Design
6.1 Design codes and calculations
6.2 Pressure and temperature rating
6.3 Cavity relief
6.4 External loads
6.5 Sizes
6.6 Face-to-face and end-to-end dimensions
6.7 Minimum bore full-opening valves
6.8 Valve operation
6.9 Pigging
6.10 Valve ends
6.11 Bypass, drain and vent connections
6.12 Handwheels and wrenches
6.13 Locking devices
6.14 Position indicators
6.15 ROV Interface
6.16 Sealant injection
6.17 Lifting lugs
6.18 Actuators/gearbox
6.19 Drive trains
6.20 Stem shaft protector
6.21 Hydraulic lock
6.22 Corrosion/erosion
6.23 Hyperbaric performance
6.24 Design document review
7 Material
7.1 Material specification
7.2 Service compatibility
7.3 Forged parts
7.4 Composition limits
7.5 Toughness test requirements
7.6 Bolting
7.7 Sour service
8 Welding
8.1 Qualifications
8.2 Impact testing
8.3 Hardness testing
9 Quality control
9.1 General
9.2 Measuring and test equipment
9.3 Qualification of inspection and test personnel
9.4 NDE
9.5 NDE of repair welding
10 Testing
10.1 Pressure
10.2 Operational/functional test
10.3 Hydrostatic seat test
10.4 Cavity relief test
10.5 Pneumatic seat test
10.6 Draining
11 Marking
11.1 Requirements
11.2 Marking example
12 Storing and shipping
12.1 Painting
12.2 Corrosion prevention
12.3 Openings
13 Documentation
Annex A (informative) Purchasing guidelines
Annex B (informative) Summary of information to be
provided by manufacturer and/or purchaser
Annex C (normative) Supplementary test requirements
Annex D (normative) Supplementary documentation
requirements
Annex E (normative) Supplementary NDE requirements
Bibliography
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