Case Study – Westinghouse Refurbishments

Case Study – Westinghouse Refurbishments

Case Study Westinghouse Rrefurbishments
Click to View Article

October 2006 – When power utilities such as Luminant Power need help with their expansion joint outage planning they trust Oakridge Bellows.

The Luminant plants have a large number of aging Westinghouse Steam turbines in their fleet. Oakridge Bellows identified for Luminant the longest lead-time items on the cross-over piping to order in advance – saving expedite costs and avoiding any outage delays.

The alloy 625, 2-ply bellows are the longest lead-time item. Ordering a bellows cartridge in advance of an outage ensures that those parts are sitting on the ground and ready for the cross-over expansion joint rebuild.

When the Westinghouse cross-over’s arrive at the Oakridge Bellows facility, the units are dimensioned, and match-marked. The flanged ends of the unit are then set in a fixture to ensure the bolting orientation is maintained.

The old bellows assemblies are cut out and the piping ends re-prepped for the new cartridges.

Other items that are removed and inspected include the tie-rods and internal flow liners; these items are almost always in good enough condition to reuse. The refurbished cross-over piping expansion joint is then hydro-tested and certified to go back into operation.

Luminant Power along with many other power utilities have trusted Oakridge Bellows to deliver cross-over rebuilds within their outage schedules.

Share:

About The Author

Greg Perkins
Greg Perkins
President & General Manager

Greg Perkins has 25 years experience in the expansion joint industry. In his previous employment with Senior Flexonics Pathway, Greg Perkins held the position of CEO and General Manager for 11 years. Prior positions include project engineer, director of engineering, and business unit manager.

In addition Greg, a degreed engineer, served on both the EJMA (expansion joint manufacturers association) technical and management committee tasked with developing/updating bellows and expansion joint performance criteria. Proficient in ASME design codes. Patents include high temperature piping restraint structures for expansion joint applications.

Got questions? Need answers? Call Greg today (830) 626-7773 or send him an email [email protected]!