GSTT Information 20-2 for pressure liners published
Basics for the static calculation of pressure liners as GSTT-Info
From the foreword of GSTT Information No. 20-2 [Translated from German]:
"For more than 50 years, liners have been successfully used for the renovation of sewers. [...] In the international standardisation process, many standards are currently being developed that deal intensively with the topic of renovating pressure pipes. [...] However, none of these documents explicitly addresses the design of the liners, which, however, differs in some respects from that of gravity sewer pipes."
The 36-page GSTT Information No. 20-2 "Basic principles for the static calculation of pressure pipe liners" (May 2022) can be downloaded free of charge as a PDF file from GSTT:
Read more about our commitment to the GSTT and the GSTT-Info 20-2 in the section Committees.