ML20215G535

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Part 21 Rept Re Vendor Tests of air-operated Diaphragm Valves Revealing Natural Frequencies Less than Required Values of 33 Hz.Initially Reported on 841227.No Adverse Effects Noted During Testing
ML20215G535
Person / Time
Site: Davis Besse, Salem, Palo Verde, Perry, Harris, Saint Lucie, Susquehanna, Columbia, Waterford, Duane Arnold, Zion, Midland, Bellefonte, 05000000, Satsop, Trojan
Issue date: 10/10/1986
From: Randall R
INTERNATIONAL TELEPHONE & TELEGRAPH CORP.
To:
INTERNATIONAL TELEPHONE & TELEGRAPH CORP., NRC
References
REF-PT21-86, REF-PT21-86-352-000 PT2-86-352, PT21-86-352, PT21-86-352-000, NUDOCS 8610200424
Download: ML20215G535 (7)
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ITT Fluid Technology Corporation m.

_a Valve Division ITTEngineered Valves

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33 Centerville Road P.O. Box 6164 Lancaster, PA 17603-2064 '

(717) 291-1981 Telex 84-8420 October 10, 1986 Sc-271 ATTENTION: Purchasing Manager

SUBJECT:

10CFR Part 21 Notification of Deviation ITT Engineered Valves ASME Section III Air Operated Diaphragm Valves PROJECT (S):

Gentlemen:

As a follow-up to our previous communication (Attachment "C") and as a result of recent discussions with the NRC Office of Inspection and Enforcement, it was determined that this notice be additionally made.

The Air-Motor Operated diaphragm valves with extended structures as supplied to the referenced project (s) by ITT Engineered Valves (formerly Dia-Flo Division of ITT Grinnell Valve Co., Inc.) have been determined by test to have natural frequencies less than 33 Hertz. The results of the tests performed during 1983-1984 at ITT Grinnell facilities will be forwarded to you under separate cover. A listing of the configuration supplied is listed in Attachment "B".

The original design requirement for the subject valves as defined in the purchase specification was that the extended structures have natural frequencies equal to or greater than 33 Hertz, as demonstrated by static analysis or test.

The natural frequency of these extended structures when delivered was demonstrated by analysis, in keeping with the contract, to be equal to or greater than 33 Hertz. Subsequent information obtained by test disclosed that the natural frequency of these extended structures is less than 33 Hertz.

Due to the implication of response amplification resulting from natural frequencies below 33 Hertz, ITT Grinnell initiated an extensive test program which included fragility testing. The results of this test program demonstrated that there were no detrimental effects on valve operability until equivalent acceleration levels significantly in excess of contract specified levels were reached. Attachm?nt "A" provides a summary of those results.

8610200424 86101

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October 10, 1986 Page Two In addition to valve considerations, the recent discussions indicate that the piping systems containing these valves and the associated piping supports may be affected by the change in frequency. Therefore, from a systems point of view, an evaluation of the methods utilized and of the potential impact on a piping system may be required. The test reports now being prepared for mailing to you include modal analysis results and mathematical models which may be helpful in your evaluation.

Excluded from this notification are situations where external supports on valve extended structures are utilized or to valves being utilized in non-safety related services.

For further information, please contact Mr. E. C. Broome at (717) 291-1901.

Very truly yours, ITT ENGINEERED VALVES Richard D. Randall Manager, Product Engineering RDR:bb:1077A/1101A cc:

Mr. J. Taylor Director, Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555 cc:

Dr. W.

F. Anderson Senior Mechanical Engineer Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555

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October 13, 1986 10CFR Part 21 Notification

. Distribution List Purchaser / Owner Project Commonwealth Edison Co.

Zion

- Florida Power & Light Co.

St. Lucie Iowa Electric Lighting & Power Co.

Duane Arnold Portland General Electric Co.

Trojan Toledo Edison Co.

Davis Besse Cleveland Electric Perry Carolina Power & Light Co.

Shearon Harris Louisiana Power & Light Waterfor'd Combustion Engineering Inc.

Arizona /WPPSS/St. Lucie Public Service Electric & Gas Co.

Salem i

TVA Bellefonte WPPSS WPPSS 3 & 5 Babcock & Wilcox TVA - Bellefonte Consumers Power Co.

Midland WSH/Boecon/Geri WPPSS 2 Arizona Public Service Palo Verde Westinghouse Electric Corp. (Information only)

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DIA-FLO December 27, 1984 Division of ITT Grinnell Valve Co., Inc.

33 Centerville Rd., Box 6164 Lancaster, PA 17603-2064 (717) 291-1901 Telex 84-8420 ATTENTION: Purchasing Manager

SUBJECT:

ITT Grinnell ASME Section III Air Operated Diaphragm Valves FROJECT(S):

Ger.tlemen:

The ITT Grinnell Air-Motor Operated diaphragm valves with extended structur as supplied to the referenced project (s) es natural frequencies less than 33 Hertz. have been determined by test to have IT7 Grinnell facilities are available for your review.The results of the tests performed at The original design requirement for the subject valves as defined in the purchase specification was that the extended structures have natural frequencies equal to or greater than 33 Hertz, as demonstrated by analysis or test.

The natural frequency of these extended structures when delivered was demonstrated by analysis, greater than 33 Hert::.

in keeping with the contract, to be equal to or the natural frequency of these extended structuresSubsequent information obtained is less than 33 Hertz.

Due to the implication of response amplification resulting from natural frequencies below 33 Herts, ITT Grinnell initiated an extensive test program which included fragility testing.

The results of this test program demonstrated that there was no detrimental effect on valve operability until equivalent acceleration levels significantly in excess of contract specified levels were reached.

safety problem related to valve functionality exists. Based on this testing, Grinne We would be pleased to provide you with copics of our seismic qualification test reports.

We believe that our test reports contain sufficient for you to evaluate our findings relative to our equipment requirements information If we can be of any further assistsance, please contact us at your co v n enience.

Very truly yours, C

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Manager, Contract Administration ECD:bb: 1077A/1101A

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SUMMARY

OF TEST RESULTS i

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CAPACITY j

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SIZE SIZE f

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j 3/4" 3225 13.28 84.6 700 8.3 Seat Leakage 1"

3225 17.6 88.75 1000 11.3 Seat Leakage and Stroke Time Deterioration f

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2" 3250 16.6 145.0 1000 6.9 Seat Leakage I

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3" 32101 12.9 367.0 3000 8.2 Seat Leakage t

4" 32130 17.6 390.0 4600 11.8 Seat Leakage 1

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PLANT VALVE CONFIGUPATIONS k

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tight Ebacco 33 3

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3 1-3225, 1.5-3225 2-3225 i

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3/4-3225, 1-3225, 2 -3 2 5r.

2-3150. 3-3250, 3-32tv1 4-32101 101cdo Ed: son Oechtel 20 3

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1-3225, 1.5-3223, 2-2225 3-3225, 3.3250 3-32130 I c-r ' i e n n OE Eechtel 20 3

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