Case History Spotlight #500: Preservation of Power Plant Steam Turbine Unit

September 25, 2025

Power Plant - Cortec Corporation A power plant in Alaska was shutting down steam turbine Unit 8 with its associated piping and boiler system. This left a large volume of carbon steel piping, vessels, ducting, and pipeline in need of up to three years of preservation inside and outside the facility. All access points were closed except for one at the top of the vessel and one at the bottom. VpCI^®-337 was fogged into one of the openings; a utility blower was used at the other end to create a draft to help draw protective vapors through the void space. When the recommended dosage was achieved, the openings were sealed and marked as “VpCI^®Protected.” The customer was very satisfied with the application and looked forward to effective preservation and an easy startup of the unit in the future.

Keywords: Cortec, Case History Spotlight, power plant preservation, steam turbine preservation, boiler layup, corrosion protection, VpCI, corrosion inhibitors, rust prevention, how to protect boilers from corrosion

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