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ASME OM Code Meeting Notes - July 2004

Site Updates


Prepared By: Ron Lippy

Company: True North Consulting

Meeting Dates: July 14-16, 2004

Meeting Location: Washington, D.C.

Meeting Notes

OM-1 - Safety and Relief Valves:


Scott Seman provided the following update to the status of the following issues.


ROM-03-03.  Temperature Correlation issue - The current proposed wording will allow owners to not have to develop temperature correlation data and control cold-differential test pressures provided the tests are conducted within a range of temperatures and pressures which corresponds to the range of normal operating conditions for which the valve was designed and supplied by the vendor.  The proposed changes in ROM-03-03 will be issued through the wbpms system for the initial review and comment.  Copies of the proposed change are shown in Attachment 1.


OM-8 - Motor-Operated Valves:


Shawn Comstock reported that the proposed revision of OMN-1, has been issued for review and comments as ballot 04-0636, tracking # 04-00831.  This revised proposed change mitigated the specific issue of the scope of application with the revised OMN-1.  The proposed change and the review comments can be viewed on the wbpms system.  Mr. Comstock reported that the 12 pages of comments and their resolution will also be available for review.  Subgroup ISTA/ISTC members are encouraged to open the wbpms system files and review the attached information.


OM 19 - Air-Operated / Hydraulic-Operated Valves


Junior Victory reported that the Subgroup AOVs/HOVs has developed a proposed “mandatory” appendix.  The proposed wording includes a “pointer” paragraph to be insercted in ISTC in the appropriate paragraph.  The new appendix will be mandatory in the sense that if the user choose to apply the provisions of the appendix then all of the requirements will have to be met.  However, the requirements may be applied on a one valve basis, if appropriate.  The proposed appendix, its associated whitepaper, and along with 29 pages of comments and their proposed resolutions, have been forwarded to the SCOMC for the issuance of a ballot.  A copy of the AOV/HOV ballot material package is shown in Attachment 2.  This attachment includes a draft “pointer” paragraph (I page), a copy of the proposed mandatory appendix with the comments incorporated (8 pages), the latest version (Rev. 2) of the whitepaper (3 pages) that accompanies the new appendix., and a matrix table of the comments received and their resolutions (18 pages).  Subgroup members are encouraged to review and comment on the package.


OM-22 - Check Valves


Ron Lippy reported that the SG-Check Valves met in conjunction with the NIC Owners Group on June 7, 2004.  The SG-CK VLVs continues to work on proposed changes to Appendix II and to improve the ability of the user to take credit for the past performances of valves to be considered in the development of a condition monitoring program.  New provisions will allow the user of Appendix II provisions to immediately extend the test interval of those check valves which have exhibited good and consistent performance in their routine testing conducted before the development of a condition monitoring program.  In addition, the Subgroup Ck. VLVs is addressing the confusion in the wording of ISTC- 3520(a) which implies that part-stroke testing of check valves is needed.  The Subgroup is also addressing the issue for qualification of test personnel under Appendix II in light of the use of the specialized requirements associated with non-intrusive testing.


Section XI


No report at this meeting.  Larry Sage reported that he had not attended recent ASME Section XI meetings.


ISTE - No report this meeting.


Note: Craig Sellers provided a new plan for development of ISTE to the SCOMC.  This plan will more closely follow the content of the proposed new Code of Federal Regulations rule 10 CFR 50.69.  Primarily, the new version and structure of ISTE will say that high safety significant components will have to be tested in accordance with the O&M Code Subsections and low safety significant components will only have to be tested in a maner consistant with their safety function requirements.  A copy of the proposed new plan for the development of ISTE is shown in Attachment 3.




A list of the current active SG-ISTC tasks, a brief description, and a statement of their current status is as follows.


V96-03 – Revisiting the categorization of valves – This is a long-term low priority action item that is currently on hold and to be handled once the current efforts of developing the two mandatory appendices for MOVs, and AOVs/HOVs are incorporated and active.


V97-01 – Acceptance criteria for semi-Rapid Acting Valves – This item has been coupled with task V02-01 on stroke time testing of valves with 2-8 second reference closure speeds.  Immediate industry experience indicates that there is not a need for new, less stringent, acceptance criteria for rapid acting valves (i.e., valves with reference stroke times of equal or less than 2.0 sec.) which exhibit step changes in stroke times.  Industry experience from SG members indicates that there may be need for more realistic test acceptance criteria for valves such as AOVs with initial reference stroke times of 2.0 to 8.0 seconds.  Warren Bellows, Millstone Power Plant, and Wendell Brown, Duke Energy, have volunteered to develop a proposed change to ISTC acceptance criteria for consideration by the SG.


V98-09 – Development of revisions to ISTC general paragraphs to support incorporation of a mandatory appendix on testing of MOVs. – This task has been reassigned by SCOMC Chairman direction to the SG-MOVs in order to ensure that one change ballot is issued at the same time for consideration by committee members.  This item will be marked complete in the next set of SG meeting minutes.


V01-03 – Resolution of differences in 10 CFR 50.55a(b)(3)(vi) and ISTC-3540 for exercise testing of manual valves – This issue was discussed in the July 2004 meeting and resolved by submitting a proposed change of ISTC-3540 to require testing at least every two (2) years.  A mark-up paragraph of ISTC-3540 was sent forward for consideration in the SCOMC and approved for issuance as a ballot for initial consideration and comment by committee members.  Reasons for the proposed change are discussed in the attached SG Task Summary Table matrix.  R. Emrath is currently assigned as the Code change package project manager.  A copy of the marked-up page with paragraph ISTC-3540 is shown in Attachment 4.


V02-01 – Stroke time testing of valves with reference times of 2-8 seconds. – This task has been combined with task V97-01.  See the discussion of task V97-01 shown above and the attached discussion shown below.


V04-01C – Clarification of ISTC-3520(a) with part-stroke testing of check valves. – This task has been reassigned to the SG-Ck Valves (OM-22).  This item will be marked closed in the next set of SG meeting minutes.


V04-02C Inquiry OMI-04-02, Requirements of ISTC-4.6 of the 1997 Code – This item was discussed and the question was rewritten into the form of a “requirement” inquiry and a proposed answer voted on and approved.  The propose, modified question, and the answer were submitted to the SCOMC on July 15, 2004 and subsequently approved for publication by the SCOMC members.  R. Emrath took on the responsibility to try to contact the author of the inquiry and to verify that the revision of the inquiry question to a “requirement” question is acceptable to the author.

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