Interpretação das normas europeias para equipamentos pressurizados e elaboração de um estudo comparativo entre as normas EN 15614 e ASME IX para qualificação de procedimentos de soldagem

Abstract

Welding procedures Qualification, it is a widely well-known topic at the welding community, but it still impose some challenges. This monograph looks for to identify the requirements, essential variables and qualification ranges for welding procedures according to the Project Codes DIN EN ISO 13480 and its respective qualification standard for Welding procedures DIN EN ISO 15614-1. The present study looks for to make a parallel between the European standards and the American standards ASME B31.3 and ASME IX in order to identify the main differences and similarities between those international standards. European standards are not well known in Brazil, but they are widely used in Europe, and it is a legal requirements. Therefore, in Europe all manufacturers of pressurized equipment shall use and meet all the requirements of EN standards to put their equipment into operation. Throughout this study, we look for to understand European standards and create a guide for welding procedures qualification. In addition, a comparison was made of the amount of WPS/PQR required to be qualified by the EN Standard compared to the ASME standard for a pulp and paper mill under construction in Uruguay that fully used the requirements of the European standards for design, manufacture, and installation of process piping. We hope that the present study can contribute with studies and projects that use EN standards for the manufacture of process piping in future projects.