for Pulp & Paper Piping Systems
GGS understand the characteristics of pulp and paper piping systems, how and where damage can occur, and how it progresses over time. This results in an approach that is specific to your environment and testing that is conscious of the functions of your system. Whether you are performing a routine assessment, evaluating for maintenance or need to learn more about suspect areas, our experience ensures pragmatic results.
Corrosion Under Insulation (CUI)
Most prevalent on insulated process piping that operates intermittently or under 200 F. CUI in the pulp & paper industry can occur anywhere around the circumference of the piping.
Internal degradation of pipe wall thickness due to high velocity material impacting the pipe. Usually occurs at flow direction changes such as elbows, tees, and reducers. The impacting material can be solid particulates entrained in a liquid process stream or liquid droplets entrained in a vapor process stream.
Pulp & paper processing uses both highly acidic and highly caustic chemicals to reduce wood to various types of paper ranging from photographic paper to tissue paper. Because of the extreme environments for this process piping, internal corrosion is inevitable.