Valerie Magyari: About the Author
Principal Engineer, The Equity Engineering Group, Inc.

Valerie Magyari directs E2G’s RBI consulting and implementation services in North America. Ms. Magyari has extensive experience in Risk-Based Inspection (RBI) evaluations for refinery and chemical plant equipment and relief valves using the API RP 581 methodology and software. She has also conducted relief valve RBI studies using a qualitative approach, and participated in the development of the relief valve RBI methodology in API RP 581. Ms. Magyari is involved in ongoing development of the API RBI methodology and is familiar with other competing RBI programs.

She serves as an instructor for RBI technology, and has experience in preparation and delivery of training courses and technical presentations to engineers and inspectors.

Prior to joining E2G, Ms. Magyari has process engineering and design experience for chemical, refining, and manufacturing clients. She has been responsible for several pressure relief valve system studies in accordance with API RP520/521, and has been involved in capital projects ranging from small chemical plant improvements to the design, construction, and start-up of a high-purity glass facility. Her responsibilities have included process calculations, specification of associated control instrumentation, heat and material balances, development of Piping & Instrumentation Diagrams (P&ID’s), equipment specifications and operating procedures.

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Published Articles


When was the last time you reviewed your Risk-Based Inspection (RBI) methodology? Are you using calculation procedures for probability of failure, consequence of failure, and risk that haven’t had their basis reviewed in years?

Authors: Valerie Magyari
May/June 2010 Inspectioneering Journal

This article describes the API Risk-Based Inspection (RBI) methodology for pressure relieving devices (PRDs) as detailed in the soon to be released 2nd edition of API 581 "Base Resource Document On Risk-Based Inspection" This methodology has been successfully used at several petrochemical facilities to establish risk-based inspection intervals for PRDs.

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