Covered Piping/High Energy Piping Verification Assessment

Is your high energy piping operating outside its design limits? We compare your plant's operating history using PI/DCS data and utilize our experienced engineers to evaluate the significance of exceedances.

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Covered Piping/High Energy Piping Verification Assessment

Is your high energy piping operating outside its design limits? We compare your plant's operating history using PI/DCS data and utilize our experienced engineers to evaluate the significance of exceedances.

What it is

ASME B31.1 Chapter VII requires owners to operate their covered piping systems (CPS) within design conditions. A verification assessment confirms and documents that this was achieved. We compare your plant's operating data against the design limits of your high energy piping, and prepare a written report of what we find.

Where the piping operated above design beyond the brief excursions B31.1 allows, we describe each event and go through the results with plant management. We also ask about any repairs or changes in operation that could explain them.

Not designed to ASME B31.1? The same approach works for high energy piping built to other codes, anywhere in the world. We check that the piping was operated within the applicable code design limits and provided similar engineering review and recommendations.

What we look at

  • Main steam piping, and for units with a reheater, hot reheat and cold reheat piping
  • Boiler feedwater piping
  • Bypass lines and desuperheaters, where temperature swings are usually largest
  • Plant operating data, typically for a calendar year
  • Any time the piping ran above design, and by how much

What you get

  • A written report with findings and recommendations
  • Supporting data, so any result can be traced back
  • A clear view on whether further work is needed
  • An engineering assessment tailored to your plant design and operating characteristics

Why owners ask for it

  • ‍Meet the code. Documented evidence for your CPS program.‍
  • Answer your insurer. Insurance representatives have been asking whether this has been addressed.‍
  • Find problems early. Repeated overheating in one section is easy to miss in the control room.‍
  • Decide where to spend. Know where to inspect first, or have the record showing nothing needed it.

Make it a yearly check

A verification assessment can be a one-off, or it can become an annual service. Each year we check your latest operating data, so you can see how your piping is running over time and catch changes early.

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Pour discuter de la manière dont nous pouvons vous aider à améliorer les performances de votre centrale ou à préserver sa valeur dans le temps

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Power Piping Services

Covered Piping/High Energy Piping Verification Assessment

Covered Piping/High Energy Piping Verification Assessment

Is your high energy piping operating outside its design limits? We compare your plant's operating history using PI/DCS data and utilize our experienced engineers to evaluate the significance of exceedances.

learn more
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Idle periods are getting longer as plants move to cycling or standby, and corrosion during layup can do serious damage. Pitting can penetrate a tube wall in a few weeks. In the October 2026 issue of Modern Power Systems, Misha Gadher and James Malloy of Tetra Engineering Europe compare five preservation methods and show how one coastal combined cycle plant matched each method to each system for a six-month shutdown.

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Tetra Engineering logo. Orange triangular pyramid on a black background.Tetra Engineering logo. Orange triangular pyramid on a black background.

Nous contacter

Pour discuter de la manière dont nous pouvons vous aider à améliorer les performances de votre centrale ou à préserver sa valeur dans le temps

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