03-18: Internal Pipe Seals for Repair of Cooling Water PipingInternal sealing of raw water piping to arrest corrosion has been utilized in municipal applications for over twenty five years. This process consists of an EPDM rubber seal that is positioned over the affected area and is locked in place with two hydraulically expanded stainless steel retaining bands, located at each end of the seal. In cooling water piping systems, numerous leaks often suggest that large sections of pipe may need to be replaced,