Working With You to Identify Damage Mechanisms and Develop a Plan

For more than two decades, E2G | The Equity Engineering Group, Inc. has been working with customers to identify active and potential damage mechanisms and develop corrosion control documents (CCDs). E2G has damage mechanism templates for nearly every unit in a refinery.


Why Perform a Damage Mechanism Review (DMR)?

A DMR is a building block for:

  • Risk-based inspection (RBI)
  • Integrity Operating Window (IOW) creation
  • Corrosion Control Document (CCD) creation
  • Inspection planning meetings
  • Preparation for PHA meetings to help identify and mitigate risk

How it’s done

  • You give us your PFDs and process info
  • We review operating conditions and metallurgy
  • We provide color-coded PFDs

Integrate Custom DM Drawings Directly Into DamageWeb

Historically, the DamagePlusTM software has incorporated a set of standard Process Flow Diagrams (PFDs) with markups and links to the different damage mechanisms referenced in the API 571 document. With the introduced of DamageWeb, mobile access to personalized DM drawings is now available.

  • Drawings can be packaged into folders and subfolders, corresponding to different units within the plant.
  • The damage mechanisms are clearly labeled, both on the drawing and the legend.
  • Hovering over one of the icons allows the user to directly access the section of the document relevant to that damage mechanisms.
  • Ensures all key plant personnel (inspections, operations, reliability) maintain a common level of understanding of applicable DMs in their equipment. This understanding helps personnel consider potential impacts of large operational changes on reliability of equipment.
  • Easily access industry accepted corrosion rate calculators and cracking susceptibility calculators for applicable damage mechanisms.

Refinery Damage Mechanisms

E2G engineers were the primary authors of API 571, Damage Mechanisms Affecting Fixed Equipment in the Refining Industry. Our Materials & Corrosion Engineers are well-known industry experts who have previously worked in refineries.


E2G Has Been Developing Integrity Operating Windows for Years

Integrity Operating Windows (IOWs) are established limits for process variables that can affect the integrity of equipment if the process operation deviates from the established limits. A thorough understanding of corrosion and other damage mechanisms is needed to establish IOW limits.

Download Damage Mechanism Brochure

E2G Help Desk Services


Our Help Desk IT specialists and engineers are available for questions about all E2G products. Our goal is to facilitate upgrades and conversions, quickly answer your questions, and help you benefit from our state-of-the-art software products.

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