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API 617

Outline. Some BackgroundBrief Review of Magnetic Bearings and Analysis ConceptsGo Through New Annex E, Compare with Existing 617 Chapter 4, Appendix FDiscussion and Questions. 2. Motivation/Need for Revisions. Use of Magnetic Bearings is Expected to Increase in API MachinesCompressor/Expanders

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API 617

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    1. 1 API 617/ISO 10439 Proposed Appendix E Magnetic Bearings

    2. Outline Some Background Brief Review of Magnetic Bearings and Analysis Concepts Go Through New Annex E, Compare with Existing 617 Chapter 4, Appendix F Discussion and Questions 2

    3. Motivation/Need for Revisions Use of Magnetic Bearings is Expected to Increase in API Machines Compressor/Expanders already offered with AMB’s as standard bearing for some applications Subsea machines are expected to be AMB machines Interest for a variety of other applications 617-7th Edition has “Informational” Appendix In Compressor/Expander Chapter – Really Need Something Normative as Guide 3

    4. Approach One of the Tasks of the 684/Standard Paragraphs Group was to Develop a Revision Decided to Form a Separate AMB Sub-Group to Develop New Content Ultimately Focusing on 617/10439 Rather Than Standard Paragraphs It Became Clear That a Good Approach was a New AMB Annex for Chapter 1. 4

    5. Sub-Task Group Total Group Membership 7 AMB Vendor (from 4 companies) 15 OEM 2 User 2 Consultant 1 Academic Eight(?) 2 Hour Web Meetings Typically 10~15 Active Participants in Web Meetings Generally Very Productive Discussions AMB Vendor Technical People Were Tremendously Helpful 5

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