00/707848 DC : DRAFT APR 2000

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

EN ISO 14723