Power Plant How a steam turbine cross over expansion joint works

Power Plant How a steam turbine cross over expansion joint works

The cross over expansion joint located in the piping between the steam turbine and condenser hood is often not understood well and often ignored.

This animated video gives a rare glimpse into how this expansion joint protects the steam turbine.

To avoid long unscheduled outages, Steam turbine manufacturers recommend having these rebuilt after 25 years in operation.

This is a video that is of interest to maintenance, steam and turbine engineers, and inspectors.

Related keyterms:

2-ply testable bellows
Steam turbine cross over expansion joint
Westinghouse steam turbine
GE steam turbine
Steam turbine bellows


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]!