Depending on each dampener’s history, it may have been exposed to corrosive fluids such as salt or brackish water. As such, wall material thickness may be reduced. This reduction affects the pressure rating. PPC currently checks wall thickness on each unit but cannot effectively use that information unless PPC has the original design data from the OEM. Ideally, the original U1A report from an ASME code stamped vessel is the best data. If this information is not available, then PPC might suggest replacement of certain dampeners that are suspect. Our inspection receiving criteria will try to identify those suspect units as we continue to develop the dampener refurbishment program.