ML20215G680

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

ML20215G680
Person / Time
Site:	Davis Besse, Salem, Palo Verde, Perry, Harris, Saint Lucie, Columbia, Waterford, Duane Arnold, Zion, Midland, Bellefonte, 05000000, Satsop, Trojan
Issue date:	10/10/1986
From:	Broome E INTERNATIONAL TELEPHONE & TELEGRAPH CORP.
To:	Anderson W NRC
References
REF-PT21-86, REF-PT21-86-353-000 PT21-86-353, PT21-86-353-000, NUDOCS 8610210059
Download: ML20215G680 (1)

Text

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ITT Fluid Technology Corporation Valve Division "f T fl ll-4J,

ITT Engineered Valves 33 Centerville Road P.O. Box 6164 Lancaster, PA 17603-2064 (717) 291-1901 Telex 84-8420 October 10,'1986 SO~

United States Nuclear Regulatory Commission I. ' E. MS - 359EW/W '

Washington, DC 20555 ATTENTION:

Dr. W. F. Anderson

SUBJECT:

ITT Air Motor Operated Valves 10CFR Part 21 Notification of Deviation Gentlemen:

Confirming our telephone conversation of October 10, 1986, enclosed please find the following:

A.

Copy of 10CFR Part 21 Notification letter to all licensees with suspect components.

B.

Copy of previous notification letter distributed on December 27, 1984.

C.

Attachment describing the valve configurations by plant.

D.

Summary of test results.

E.

List of.all utilities receiving notification.

Please review this information, and if you require additional information, please contact me at your earliest convenience.

Very truly yours, ITT ENGINErnen m.VES U

E. C. Broome Sales Operations Manager ECB:bb:2650A h

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ITT Fluid Technology Corporation Valve Division ITTEngineered Valves 33 Centerville Road P.O. Box 6164 Lancaster, PA 17603-2064 (717) 291-1901 Telex 84-8420 -

October 10, 1986 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 co:cmunication (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. Attachment "A" provides a summary of those results.

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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 i

Portland General Electric Co.

Trojan j

Toledo Edison Co.

Davis Besse Cleveland Electric Perry I

1 Carolina Power & Light Co.

Shearon Harris Louisiana Power & Light Waterford i

Combustion Engineering Inc.

Arizona /WPPSS/St. Lucie i

l Public Service Electric & Gas Co.

Salem 4'

TVA-Bellefonte I

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

Midland WSH/Boecon/Geri WPPSE 2 I

Arizona Public Service Palo Verde 1

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Westinghouse Electric Corp. (Informaticn only)

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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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A,-e c h e DIA-FLO December 27, 1984 ion ofITT Grinnell Vake 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 PROJECT (S):

Gentlemen:

' The ITT Grinnell Air-Motor Operated diaphragm valves with e:: tended structures as supplied to the referenced project (s) have been determined by test to have natural frequencies less than 33 Herts.

ITT 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, in keeping with the contract, to be equal to or greater than 33 Herts.

the natural frequency of these extended structures is less than 33 Hert::

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 progran demonstrated that there was no detrimental effect on valve operability until equivalent acceleration levels significantly in excess of contract specified levels were reached.

Based on this testing, Grinnell has concluded that no safety problem related to valve functionality exists.

We would be pleased to provide you with copies of our seismic qualification test reports.

We believe that our test reports contain sufficient information for you to evaluate our findings relative to our equipment requirements.

If we can be of any further assistsance, please contact us at your convenience.

Very truly yours,

c.. C. Broone Manager, Contract Administration ECD:bb: 1077A/1101A

ATTACHMENT "A"

SUMMARY

OF TEST RESULTS CAPACITY VALVE ACTUATOR LOWEST WEIGHT OF REMARKS SIZE SIZE f

EXTENDED STRUCTURE n

(LBS.)

LBS.

g's 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 2"

3250 16.6 145.0 1000 6.9

' Seat Leakage 3"

32101 12.9 367.0 3000 8.2 seat Leakage 4"

32130 17.6 390.0 4600 11.8 Seat Leakage e

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