Steam Generator Secondary Side Services Product Portfolio

Description

Westinghouse works proactively with customers to develop a secondary side SG maintenance plan that:

• Provides cost-effective cleaning solutions to minimize tube degradation and maintain full power operations
• Provides industry-leading products and processes to address individual plant conditions required to extend the life of its generators

Cleaning processes:

• Electric Power Research Institute/Steam Generator Owners’ Group (EPRI/SGOG) chemical cleaning
• Advanced scale conditioning agents (ASCAs)
• Consolidated deposit extraction (CODE)
• Tubesheet cleaning (sludge lance)
• High-volume bundle flush (HVBF)
• Ultrasonic energy cleaning (UEC)
• Pressure pulse cleaning (PPC)

Inspection services:

• Annulus and in-bundle foreign object search and retrieval (FOSAR)
• Eggcrate lattice visual inspection system
• Upper-bundle/in-bundle inspection (UBIB)
• Alternate plugging criteria inspections
• Top-down inspections
• Upper internals inspections

Machining processes:

• J-nozzle repair/replacement
• Wrapper modification
• Gasket seating surface repair (manways and handholes)
• Bolt hole repair (manways and handholes)
• Moisture separator modifications

Miscellaneous services:

• Manway and handhole cover removal and installation
• Temporary containment penetrations

Benefits

Steam generator services integrated with steam generator engineering maximize steam generator integrity and operational performance as defined in:

• Generic Letter 97-06
• Deposit management
• Maintenance guidelines
• Tube bundle inspection programs

Experience

Westinghouse has more than 30 years of experience servicing SGs worldwide and performs secondary services at approximately 50 plants.