Covered Piping Systems (CPS) / High Energy Piping Verification Assessment

We check your plant's PI/DCS operating history against the design limits of your high energy piping, and our engineers assess every exceedance.

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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 provide the same engineering review and recommendations.

Illustration of plant operating data rising above the piping design limit

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.

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

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To discuss how we might assist you to improve your plant's performance or to maintain its value over time

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Power Piping Services

Covered Piping Systems (CPS) / High Energy Piping Verification Assessment

Covered Piping Systems (CPS) / High Energy Piping Verification Assessment

We check your plant's PI/DCS operating history against the design limits of your high energy piping, and our engineers assess every exceedance.

learn more
ASME B31.1 Covered Piping Systems (CPS) Program

ASME B31.1 Covered Piping Systems (CPS) Program

Develop an ASME B31.1 covered piping systems (CPS) program, with inspection data managed in PipeVue.

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Covered Piping Systems (CPS) Inspections

Covered Piping Systems (CPS) Inspections

Hanger walkdowns, condition assessments and targeted NDE plans that find piping damage early.

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Covered Piping Systems (CPS) Stress Analysis

Covered Piping Systems (CPS) Stress Analysis

Pipe stress analysis of as-found piping after modifications, repairs or transient events.

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Recent Resources

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HRSG Preservation During Shutdowns: A Key Issue Often Neglected
News

HRSG Preservation During Shutdowns: A Key Issue Often Neglected

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.

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

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To discuss how we might assist you to improve your plant's performance or to maintain its value over time

Contact Us