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5. Modifications and repairs
Repairs or modifications to pressure equipment mainly involve welding.
These operations require knowledge of the manufacturing characteristics of the ESP concerned (materials used, any heat treatments, minimum design thicknesses, controls, service conditions).
They are carried out in accordance with the rules applicable to new equipment (design, construction, inspections).
In certain special cases (e.g. work on ESPs which have undergone an initial heat treatment which cannot be repeated under conditions which do not affect the metallurgical characteristics of the steel), specific procedures may be used (see, for example, the American ASME PCC2, Post construction code).
In the case of major equipment (such as LPG storage vessels), the pre-intervention study should give priority to solutions...
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Modifications and repairs
Conclusion
Bibliography
Websites
Legislative texts (French administration website)
INERIS. AIDA regulatory database
SNCT (Syndicat national de la chaudronnerie et de la tuyauterie)
Standards and norms
- Unfired pressure vessels – Part 1: General information – Unfired pressure vessels. - NF EN 13445-1/A2 - Mars 2018
- Industrial metal piping – Part 1: General [cancelled 1er December 2017]. - NF EN 13480-1 V3 - Octobre 2012
- Petroleum, petrochemical and natural gas industries – Depressurization and overpressure protection systems. - ISO/DIS 23251 - Mai 2018
- Water-tube boilers and auxiliary systems...
Regulations
Decree no. 2015-799 of 1 er July 2015 on hazardous products and equipment.
Order of November 20, 2017 on in-service monitoring of pressure equipment.
BSEI decision no. 13-028 of March 21, 2010 and professional technical specifications for in-service inspections of sloped tanks.
BSEI decision no. 12-082 of...
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