Piping Fabrication, Installation, Flushing and Testing (Project Standards and Specifications)

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Description

This Project Standard and Specification covers the basis for fabrication, installation, flushing, pressure testing, chemical cleaning, hot oil flushing and system color coding of process, drilling and utility piping for offshore oil and/or gas production facilities.

This Project Standard and Specification does not cover the following:
- all instrument control piping downstream of first piping block valve;
- subsea pipe work and risers;
- flexible hoses;
- GRP piping;
- marine systems in hulls of vessels and floating platforms and land based plants.


Content:-
1. SCOPE
2. REFERENCES
3. SYMBOLS AND ABBREVIATIONS
4. MATERIALS
5. Color Marking of Materials
6. Material Storage, Handling, Receiving and Identification Control
7. FABRICATION OF PIPEWORK
8. General Requirements
9. Welding and NDE
10. Butt Welds for Orifice Runs
11. Screwed Pipe work
12. Dimensional Tolerances for Pre-Fabricated Piping Assemblies
13. Branch Connections and Outlets
14. Pipe Flanges, Mechanical Hub and Clamp Coupling
15. INSTALLATION OF PIPING
16. Pipe work Erection
17. Flanged Joints
18. Strain sensitive equipment with flange connections
19. Gaskets
20. Bolting
21. Pipe Support
22. Global Tolerances, Installation
23. CLEANING OF PIPEWORK
24. General
25. Hydro Flushing
26. Pressurised Air Shock blowing
27. Pneumatic Flushing
28. Soft Pigging
29. Verification of Cleanness
30. PRESSURE TESTS
31. General
32. Test Preparation
33. Test Media
34. Hydrostatic Testing
35. Pneumatic Testing
36. After Completion of Test
37. Test Acceptance Criteria
38. Test Documentation
39. CHEMICAL CLEANING
40. General
41. Documentation
42. HOT OIL FLUSHING
43. General
44. Marking
45. Documentation
46. TIGHTNESS TESTING
47. SYSTEM COLOUR CODING OF PIPING
48. Purpose
49. Types of Markers
50. Insulated Lines
51. Plastic/Rubber Lined Piping
52. Obstruction
53. Materials of Markers
54. Fastening Materials
55. Marker Text
56. Size and Use of Markers
57. Positioning of Markers
58. Valve Marking
59. Colour Coding Information
APPENDIX A
APPENDIX B

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