This book of tables focuses primarily on pipe connection parts (in particular flanges) most commonly used in the German and international market. It provides a practical compilation of the most important information and values (materials, technical delivery conditions, dimensions) required in daily practice for the pre-planning and inspection of finished parts, including documentation and certificates for the individual parts. The 7th edition takes into account the basic standard DIN EN 1092-1:2018-12, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges.