This technical publication explains the background, methods, references, and development considerations behind Part 3, "Design," of the European standard EN 13445 for unfired pressure vessels. It follows the standard's clause structure and covers design by formulae, design by analysis, pressure vessel components, fatigue assessment, weld requirements, non-pressure loads, flanges, tubesheets, expansion bellows, and related annexes. The guide is intended to help pressure vessel designers and engineering organizations apply the EN 13445-3 rules effectively and understand their relationship to established pressure vessel design methods.
Application Scope: For pressure vessel design, engineering review, fatigue assessment, welded construction, and technical reference work involving EN 13445 Part 3.
