HRST’s inverted bellows seal design eliminates trapped condensation in the insulation cavity area. The inverted bellows is located internal to the HRSG and connected to the casing via a pipe protrusion through the casing. The inside of HRST’s bellows is non-insulated, keeping it dry to prevent condensation corrosion. Not sure if corrosion is a problem? HRST’s Pulsed Eddy Current (PEC) for CUI allows assessment of piping conditions through non-magnetic materials such as lagging, insulation, and HRSG pipe penetration seals. If corrosion is found, consider HRST’s inverted bellows as a solution.