Steam generator feedwater nozzle transition piece replacement experience at Salem Unit 1
- Public Service Electric and Gas Co., Hancocks Bridge, NJ (United States)
- Structural Integrity Associates, Inc., San Jose, CA (United States)
- Welding Services, Inc., Atlanta, GA (United States)
Cracking of steam generator feedwater piping adjacent to the feedwater nozzles has been a recurring problem since 1979 at Salem Unit 1 owned and operated by Public Service Electric and Gas Company. In addition to the cracking problem, erosion-corrosion at the leading edge of the feedwater nozzle thermal sleeve was also observed in 1992. To provide a long-term solution for the pipe cracking and thermal sleeve erosion-corrosion problems, a unique transition piece forging was specially designed, fabricated, and installed for each of the four steam generators during the 1995 outage. This paper discusses the design, fabrication, and installation of the transition piece forgings at Salem Unit 1, and the experiences gained from this project. It is believed that these experiences may help other utilities when planning similar replacements in the future.
- OSTI ID:
- 404301
- Report Number(s):
- CONF-960706-; ISBN 0-7918-1780-6; TRN: 97:000437
- Resource Relation:
- Conference: American Society of Mechanical Engineers (ASME) pressure vessels and piping conference, Montreal (Canada), 21-26 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of Integrity of structures, and fluid systems, hazardous release protection, piping and pipe supports, and pumps and valves. PVP-Volume 333; Chung, H.H. [ed.] [Argonne National Lab., IL (United States)]; Brown, S.J. [ed.] [Quest Engineering Development, Humble, TX (United States)]; Goodling, E.C. Jr. [ed.] [Parsons Power Group, Inc., Reading, PA (United States)]; Ezekoye, L.I. [ed.] [Westinghouse Electric Co., Pittsburgh, PA (United States)]; PB: 267 p.
- Country of Publication:
- United States
- Language:
- English
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