An Overview of API /ASME FFS Fitness-For-Service Assessment. Standard with Applications to Case. Studies. By. Mohammad M. Megahed. Professor. API /ASME FFS-1 is a standard released by API which describes FFS assessment techniques for pressure equipment used in the oil & gas industries. Introduction. API / ASME FFS-1, Fitness-For-Service, (), is an American National Standard developed and published by the.
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Note that for a Level 1 assessment, the future pitting damage FCA is assumed to be zero, e. Some of the limitations for nozzle assessments are:. Below is a summary of the assessment process. 5791 the first to submit a comment. The procedures are not intended to provide a definitive guideline for every possible situation that may be encountered.
The role of the inspector in gathering data and evaluating that data will be discussed as will be the role of the technologist and engineer in appraising the data and employing it 579- engineering calculations.
Substantive Changes to the Edition Fitness for Service. General Interest 4 post s. Subscribe to this blog post Unsubscribe. Becht Nuclear 36 post s.
Process Consulting 10 post s. In the edition, the material properties are no longer in a separate annex, but are instead moved to the assessment part where they are mostly referenced. The complete list of limitations in Parts 2 and 6 of API should be reviewed before proceeding with a Level 1 pitting assessment. Other examples of Type B Components include the reinforcement zone of conical transitions, branch connections, and flanges.
These components have a code design procedure to determine an acceptable configuration. Phone please use format: Another example is the previous Annex B1, which contained the procedures for demonstrating protection against various failure modes using stress analysis, which is now under Part 2 in Annex 2D. Sign up for eNewsletter. Becht Engineering has extensive experience and expertise in the conduct of Fitness-For-Service.
Available Positions Apply On-line. Fitness for Service 9 post s.
The purpose of the document is to provide a consensus of methods to quantitatively evaluate commonly observed damage to in-service pressure equipment.
Widely scattered pitting is pitting that occurs over a significant apj of the component. Substantive Changes to the Edition. A limited discussion will be presented on advanced methods of assessment. Materials Degradation and 579–1 16 post s. These rules typically result in one component with a thickness that is dependent upon another component.
Article 3, API Fitness-For-Service (FFS) – Nozzle Assessment | Carmagen Engineering
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For example, material data needed for creep assessments – Part 10 — are now found in Annex 10B. Read more about the software HERE. Due Diligence 6 post s. Did a recent external inspection on an exchanger reveal pitting corrosion under the insulation?
Our wealth of knowledge and experience enables us to provide authoritative, practical, knowledge based answers, and to solve your problems. Becht Software 4 post s.
API RP 579-1 / ASME FFS-1
The information in Annex H, along with knowledge of the differences in design codes, should enable the user to factor, scale, or adjust the acceptance limits of this Standard such that equivalent FFS inservice margins can be attained for equipment not constructed to these codes. Bruce Ball is a professional engineer with over 35 years consulting experience in failure analysis and inspection of plant facilities and mechanical equipment.
Systems 2 post s. Subscribe to this blog post Please fill in your email address to subscribe to updates from this post. Level 1 pitting assessments are permitted only if certain conditions are satisfied. The Second Edition was released infollowed by the most current release of the document in June of Some of the limitations are:.
In this third installment, we will take a look at general metal loss GML in nozzles. However, flexibility is provided to the user in the form of an advanced assessment level to handle uncommon situations that may require a more detailed analysis. Responsibilities of owner-user, inspector, engineer General Assessment Method Data requirements: This approach provides an entry point into the ASME or API codes refer also to Annex A wherein the pressure-containing component is reconciled or generally made equivalent to the design bases assumed for this Standard.
These are components that have a design equation that specifically relate pressure or liquid fill height, and other loads, to a required wall thickness e. Reliability Improvement 29 post s. Subscribe to our blog Unsubscribe from our blog. GML Level 2 assessments are permitted only if certain conditions are satisfied.
Assessment techniques are included to evaluate flaws including: Piping 29 post s.
This Standard has broad application since the assessment procedures are based on allowable stress methods and plastic collapse loads for non-crack-like flaws, and the Failure Assessment Diagram FAD Approach for crack-like flaws. Details of the process, as well as the nomenclature, can be found in API Part 6. Litigation Support 3 post s. JanuaryEarn: