You saw this exhibition of the "Aseptic" topic at the fair booth
Pipe connections for use under sterile conditions are only approved for plants in the pharmaceutical industry, food industry and cosmetic production as well as biotechnology when they meet the strict specifications of DIN 11864. Depending on the flange type in the variants "-1" for screwed pipe connections and "-2" for flanged connections as well as "-3" for clamp connections.
Supplementary and additional articles can be found in the catalogue and the online shop where search aids help you to find what you are looking for easier. – Of course we will also be glad to advise you personally.