ML22222A009

From kanterella
Jump to navigation Jump to search
EN 55974 - Flowserve, Part 21 Report Re Solenoid Coil Failure of Model 38878-8 Solenoid Valve at Catawba Nuclear Station for Use on FWIV Actuator
ML22222A009
Person / Time
Site: Catawba  Duke Energy icon.png
Issue date: 07/01/2022
From: Brodie L, Hobbs M, Kipe H
Flowserve US
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML22222A009 (21)
v • d • e


Text

01/14/2013 05:01 91%527742 LJVIJV'-'1:::,11< L.,1\\~._,l'Ut,JV ILJ, I v.._,-,-,-v, FLOWSERVE July 1, 2022 US Nuclear Regulatory Commission Document Control Desk 11545 Rockville Pike Rockville, MD 2085.2-2746 THE UPS STORE 4378 PAGE 01 Flow Control Division Anchor/Dar/Ing Valves BWIIP Valves Edward Valves Valtek Control Products Worcester Valves

Subject:

Solenoid Coil Failure of Model 38878-8 Solenoid Valve at Catawba Nuclear Station for use on FWIV Actuator As-Found Inspection Report - Ohmega Failure Analysis Report - Shipment Data This letter is to notify the US Nuclear Regulatory Commission that, in accordance with the provisions of 1 0CFR Part 21, we have concluded our assessment and are reporting the results below.

==

Description:==

On Februar*y 2, 2022, Flowserve was informed by Duke Energy that a Model 38878-8 solenoid valve installed on a feed water isolation valve actuator failed a routine coil resistance test due to low resistance at the customer site The solenoid valve was returned to Flowserve for evaluation.

Evaluation:

Flowserve received the solenoid valve and completed an initial inspection (See ). Flowserve found there to be no apparent external damage and noted that the tamper-indicating fastener paint was not broken indicating that the solenoid valve had not been disassembled. Flowserve tested the resistance across the coil and confirmed the condition as described by the customer. The coil resistance measured 26.7 Ohms. The required resistance is 290-320 Ohms per Flawserve's internal specification and 175-500 Ohms per Duke Energy's internal pr-acedure As no root cause of failure was evident after initial inspection and testing of the solenoid valve assembly and coil, Flowserve returned the coil to the original equipment manufacturer, Ohmega Coil, for inspection to determine if a manufacturing defect is potentially the reason for failure.

Upon receipt of the coil, Ohmega verified the condition and found the low resistance condition ta be as described at 26.65 Ohms at 68 degrees F. Ohmega noted that there were no defects on the outer molded surface. The coil was machined back ta expose the magnet wire. The lead wire solder joints were inspected and found ta be properly attached and insulated. Due to the unit being molded in epoxy, it was not possible far Oh mega to inspect the coil in stages ta fully evaluate the magnet wire.

Flowserve LIS Inc Flow Control Division Raleigh Operation$

PO Box 1961 1900 South SaundeIB Street Raleigh, NC 27603 Toll Free:

1-S00-225-6989 Phone:

1*919-832*051.5 f 1;1csirnile: 1-919-831-3~69 W'NW-fiowserve com

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 02 Following the investigation by the coil manufacturer, Ohmega, it was determined that t11e lead wires and solder joints were not the cause of failure. Per the manufacturer's failure analysis report, t11e exact cause of failure could not be determined. Oh mega states that a. possible cause for the failure is a. sma.11 nick in the magnet wire insulation that over time caused the coil to short out (See Attachment 2 for Ohmega Failure Analysis Report).

Flowserve notes that an overvoltage condition could also cause a similar failure but no obvious evidence of an overvoltage condition (discoloration, damage to housing, obvious fused conducting material, etc.) was found during inspection.

The subject Coil (Part number 04103969DEDCATD) has been shipped from Flowserve at least 273 times with the subject issue being the only known failure recorded to date (See Attachment 3). Before shipping, each coil is tested at Flowserve for both operability and resistance. During this process, each coil is cycled approximately 150 times for a total duration of approximately 750 seconds to verify the coil is satisfactory before delivery to the customer.

Extent of Condition:

Because the coil windings are self-contained and can move very little within the housing, the probability of a coil enduring 150 cycles, passing all electrical and functional tests, and subsequently failing in service is veIy low. In this case, this low probability outcome occurred, based on the findings of the investigation. However, Flowserve does not believe that this isolated incident is indicative of an issue with the manufacturing or testing methods of the coil and does not believe that this issue affects other coils in service based on historical reliability and the failure mode.

Corrective Actions:

Though the exact cause of the failure could not be determined within the magnet wire, Oh mega suggests a possible manufacturing improvement of winding the coil with a varnish to provide extra insulation of the magnet wire.

Additionally, Flowserve suggests that plant operators using these solenoid coils measure the resistance of the coil periodically, especially after the coil has been energized for testing or service.

Flowserve U S Inc

!='low Control Di*.Jision Page 2 of 3 Raleigh Operations PO Bo~ 1951 1900 South Saunders Street Raleigh, NC 27603 Tall Free:

1-800-225-6989

!='hone:

1-919,,832-0525 Facsimile; *1-919-831-3369

!ifJttJ.. flowserve.corn

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 03 Summation; In summary, the Model 38878-8 solenoid valve failed a routine coil resistance test at Catawba Nuclear Station while installed on a feed water isolation valve actuator. The solenoid valve was returned to Flowserve where the low resistance was confirmed. The solenoid coil was then sent to the OEM for further evalL1ation.

The OEM (Ohmega) completed their analysis and found the reason for failure to be associated with the magnet wire, b1,1t the exact point of failure could not be located due to the construction of the coil.

Additionally, Flowserve compiled shipment data for the subject coil and found there to be at least 273 instances where the part was shipped to customers. Of those 273+, this case is the only known instance of a failure associated with the coil.

Due lo the rigorous functional testing and the historical reliability of the coil in the field, Flowserve does not believe this incident is indicative of an issue with the manufacturing or testing of the coil and concludes that this issue does not affect other coils currently in service.

Ohmega suggests a possible manufacturing improvement of winding the coil with a varnish to provide extra insulation of the magnet wire.

Flowserve suggests that plant operators using tt1ese solenoid coils measure the resistance of the coil periodically, especially after the coil has been energized for testing or service.

Respectfully Submitted, Sincerely, Malt Hobbs, PE Engineering Manager Office: (919) 334-7127 mhobbs@flowserve.com FIOWSQ!'V8 U S Inc Flow Contml Division Page 3 of 3 Sincerely, r-:, DoctuSignll.ld by:

~

r

,..A.. 7J,,,,,,1,;,,,,

61E:Oi1A8E:16'.l,\\42.2...

LaTisha Brodie QA Supervisor Office: (919) 334-7113 latwilliams@flowserve.com Raleigh Operations PO Bo, 1961 1900 South Saunders Street Raleigh, NC 27603 Sincerely, Hylton Kipe Director, Plant Manager Raleigh Operations Office: (931) 432-4021 hkipe@flowserve.com Toll Free:

1-800-225-6989 Phone:

1-919-832-(1525 Facsimile: 1-B19-831-3369 WW'// ftlM!l@IY~ QQ!l!

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 04 uocu:::;1gn t:nV9lOPEI 1u: / :ll,'l-'+0/ f'..-C~::."O-'tl 10~:::J'+Ot.t~C'f..JCJJU l rcn..1i;:,

Attachr11ent 1 - As-Found Inspection Report ATTACHMENT I

01/14/2013 05:01 91%527742

*,:;,** -*** -**r.

.,,.a a.....

FLOWSERVE THE UPS STORE 4378 PAGE 05 Flow Control Division Ar1c/1or/Darling Valve.s BWIIP Valves Edward \\/elves Valfek Control Products Worcester Valves March 3, 2022 As Found Inspection Report for Returned Valve Order Information:

Sales Order Number: 135833 (RMA #11477)

Customer: Duke Energy Carolinas, LLC Purchase Order Number: N/ A Scope:

The order consists or QTY 1 Solenoid Valve, Model 38878-8, Serial Number BR-332.

The subject valve was returned on Flowserve Sales Order 135833 for a failure mode analysis to be performed on the solenoid coil originally supplied on 124353, Line Item 001. The valves were returned to Flowserve for evaluation due to low resistance readings across the solenoid coil. Below are the results of the as"found condition.

Inspection Results The solenoid was received with no apparent external damage. The tamper"indicating fastener paint was not broken indicating that coil housing had never been removed and the internal components had not been manipulated (See Attachment 1, Images 1 and 2), Resistance measurements across the solenoid coil leads resulted in a value of 26.7 Ohms (See Attachment 1, Image 3), This is consistent with the measurements obtained by Duke Energy. After the initial value was recorded, the wire was manipulated with the multimeter leads still connected. The resistance did not fluctuate, indicating that issue most is most likely in the coil itself.

Research revealed that the subject valve was sent for refurbishment/repair in 2018 during an outage under normal process for QA" 1 Borg Warner Solenoid Valves. Refurbishment was performed under Flowserve Sales Order 124353 in early 2019. During refurbishment, the solenoid coil was replaced and tested. Post" refurbishment testing results show that coil resistance was measured to be 296 Ohms during functional testing before shipment (See Attachment 2., Step 6.6.1) and was within specification. Flowserve also confirmed that the original dedication of the solenoid coil itself was satisfactory, The heat number for the solenoid coil on the failed unit is CMT941. See Attachment 3 for dedication results of solenoid coils under this heat number. Note that all were satisfactory.

Flowserve U S Inc Flow Cc,ntrol Division Raleigh Operations PO Box 1961 1900 Soulll Saundera Street Raleigh, NC 27603 ATTACHMENT 1 Toll Free:

1*800*225'6989 Phone:

1-919-832-0525 Facsimile: 1*919'331-3369 www.nowserva.con:i

01/14/2013 05:01 9195527742 THE UPS STORE 4378 PAGE 05 LJocu~1gn t:.nvetopa lU:,::,1...,.qq.o I f-\\,-DDt,O*'+f I u-:::i"l'tJ"i"*C'T..Jt.:....J..JU 11 UVL..I Conclusion Flowserve recommends disassembly of the solenoid valve to further investigate the cause of coil failure.

Jak.e Buske Product Engineer Flowserve Corp, Flow Control Division 1900 S. Saunders St.

Raleigh, NC 27603 Flowserve US Inc Flow Control Division Page 2 of 2 Raleigh Operations PO Bee, 1961 1900 South Saunder.:: Street Raleigh, NC 27603 ATTACHMENT 1 Toll Frae, 1-800-225-0989 Phone; 1-919--832--0525 Fa~imi!e: 1-919-831-3369 www ftowserve com

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 07 ULJl.,,t;~l\\:JI I LI 1vo:::.1up.::. ILJ. I,AJ"l'"'l'UI n-L.1..,r,:,v-,1 I v-v,v,-,..,.-TV'-VVV I I '-'I--'

Page 2 of3 Image 2 -Tamper-Indicating Fastener Paint (2)

ATTACHMENT 1

01/14/2013 05:01 9195527742 THE UPS STORE 4378 PAGE 08 A*BB98-4/1 Q-!:1464-l::4Jl::::kS01 l-11Ul:S Page 3 of3 Image 3 ~ Multimeter Reading ATTACHMENT 1

01/14/2013 05:01 91%527742 THE UPS STORE 4378 I

i ~ Functional Test Results for BR332 As--supplied condition on RMA 10958 (Flowserve Sales Order 124353-001)

Exhibit Ill METHOD SPECIFICATION TITLE:

FUNCTIONAL TEST PROCEDURE FOR 38878 SOLENOID VALVES MS: 9792 Original Date: 5/04/2016 Revision Date:

Flows,erve Corponc1tlon \\ Test Summary j Reva Sheet Customer: /) << J<. C:

Shop Jrder: / ;1.,1/ 3 5':>

1,J t) SC.~ 3/r Tested By:

3-8~

I Ass'y SIN:

\\ Part No. 38878-s-I> If. 3 :s "2-.... --

Date:

J:4-7~/"]

Limits Record Value By:

Para.

Description U/M Min Max L--..-*~

Date:

6.1.5 PROOF TEST Zero Limits*

z_&?eu No external leakage or deformation 6.2.4.3 STROKE Inches 0.0025 0.0035 ADJUSTMENT

,02>2--"';,

Lim/ls:

Gap setting on -1, -2,

-4, -5, and -6, -7, -8 assemblies 6 2.4.6 STROKE Inches 0,016 0.02 ADJUSTMENT N4 Um,1.::r Gap setting on -3 as*emblle;,

PULL-IN VOLTAGE Drop/1 O 1

ADJUSTMENT Minutes On -1, -5, -7, -8 I

Asse111blies Limits:

(Ref. Para. 6.3,2"'5)

Leakage: 1 Drop/10 Minutes Llm1M:

Drop/10 1

(Ref. Para, 6.3.2.6)

Minutes I

Leakage: 1 Drop/1 Minute @ 90 +/* 1 VDC um11s:

AMPS 0.37 0.45

(),r../0 (Ref. Para. 6.3.2.8)

Steady-State currenl:

.37 to.45 amperes Form #36-Q-1365 ATTACHMENT I PAGE 09

91%527742 THE UPS STORE 4378 PAGE 10 01/14/2013 05:01 I

Ull'-ILIV,1c.<1

.....,,u..,., \\'- LJl>LIUL I VIIVVOIII~,,v,u,uh:,1111,,._,,,

i'.:t()VvSERVE Ralelgh, NC C Exhibit ill METHOD SPECIFICATION TITLE:

FUNCTIONAL TEST PROCEDURE FOR 38878 SOLENOID VALVES

~S: 97_s2 ____

o_r_ig-in_a_1__a_1e_:_s,_04~016 Revision Date:

Flowserve I Test Summary Sheet I Rev0 Corporation customer:

Du,l(t Shop Order: 1.;:z.y3:5 """;;,

kY" 5,;; 5 :3 3> o'-

Tested By: ~ \\ Ass*y SIN:B e 33 <

\\ Part No. 38878-S Date:

Limits

    • -* Record Value-
l-7-!'j By

Para.

Description U/M Min Max Date:

6,3,3,5 For-2 & -6 Drop/10 1

Assemblies Minutes Um/I§

/1/1+

(Ref. F'ara. 6,3,2,5) 1 drop/10 minutes

!d!1.!!!I!.

Drop/10 1

(Rel. Para. 6.3.2.6)

Minutes

!ti/I Leakage: 1 Drop/1 Minute @ 90 ~1-1 voe AMPS 0,37 0.46 Limits

/Vl.:J.

(Ref. Par~. 6.3.2.8)

Steady-Stale ourrent:

.37 to.45 em eres.

6.3.4 For -3 Assemblies CC/Min.

Limits:

,A)fr (Ref. Para. 6.3.4.5)

Leakage: 1CC/10 minutes umgs:

AMPS 0.37 0.45

J,4-(Ref. Para. 6.3A.6) steady-Stele current

.37 ta.45 amperes.

6.S.5 For --4 As~emblies AMPS 0.37 0.45 Umil8 All+

(Ref Para. 6.3.5.4)

Leakage: 1 CC/1 0 Minutes @ 90 +I-1 VDC Form #36-0.-1365 ATTACH/v'iCNT 1 2 of,

THE UPS STORE 4378 PAGE 11 01/14/2013 05:01 9195527742 UU{,;U.::=i1~r1 t::flWIOpe ILJ: {:ll,4ll-~/ A-t=St=S::Jl:!-4/"I t:i-l:f4ti4~t.4jl::.j:.-:S!)11-~LJB Functional Test Results for BR332 Following Refurbishme, 3 of Exhibit 111 METHOD SPECIFICATION TITLE:

FUNCTIONAL TEST PROCEDURE FOR 38878 SOLENOID VALVES I

MS _:_979_-2 __

~_o_r_ig_i_n_a_1_o_a_1_e_: s_1_0_41_2_0_1_B __

R_e_v_is-io_n_D_a_1_e_: _-_____ _

Flowserve I

Test Summary Sheet

_ J-Rev. o g_orporation Customer:

DIA./<.. c:

Shop 01er: ; ;;:i, 5'35..".>

0 fl SC. 5'.73 Tested By:

S:i:-_3, I Ass'y S/N:6 it3 3' <'.

I Part No. 38878-,?-

Date:

Z-7-/ J Limits Record Value By:

Para.

Description U/M Min Max Date:

6.3.5

( Continued)

AMPS

  • o.37 045 Um/ls

!VA-(Ref. Para. 6.3.2.8)

Steady-State currant:

.37 to.45 Amneras

    • -~

6.4 External Leakage Test ZERO 2?71:".0 Umfts:

No external leakage allowed 6.5 swab Fluid From Valve CHECK OFF Cavity & Coll Housing 6.5.1 Apply Loctite TL 290 CHECK OFF

,_.,/

6.52 Set Screw Tolerances Inches Limits:

-3:.018 to.020 In

/CJ02.. 5' Others*.. 00.2G to.0035 in 6.5.3 Tamper Proof Paint CHECK OFF I/'

6.5.A All A$$elllblies Torque l't-20 25

  • -zo End Cap LBS 6,6.1 r.nu f;

,~.

1J/11ft!,;

OHMS 290 320 Gi--'7 G zeo to 320 OHMS.

ITT.

/

~~;

shall be no breakdown or arcing.

Form #36*0-1365 ATTACHMlSNT 1

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 12 4 of 4 METHOD SPECIFICATION rtTLE:

J FUNCTIONAL TEST PROCEDURE FOR 38878 E""x-"-h"-ib'-'-it~l~ll ___ ~S=OLENOID VALVES Original Date: 5/0f20: J/.\\I Revision Date:

5"" 0

/ Z/ 3 5 :;)

MS: 9792

" ~J /cJ $(f S;iJP 4-5 ;5 'y ',

11",,~, '-

(

I Para.

Tested By By:

~7 Date:

7.0 Marking

Check Off (For New Asserr1blles)

//

Vibro-Etch:

1) Flowserve P/N 3887 8-on valve body
2) SIN en valve bod> flange 8.0 Clealli!:ig and Pacl<aging Check Off

./

Form #36-Q-1365 ATTACHMENT 1

co 15 JAN lB 10, OlAM PURR.:] a Dl RMASSE:t:-JGILL R, Ma.ssen~ri 11

~ j PO Nbr 256959 Po Revfsion 0: j Receiver Nb.r 3 *1 71 Dl Date Rcvd

[ Rcvd Facility l I Shipped Via Conway Frt o:r Fed Ex CD co I

I Buyer 2-3 Scott Hei.l I Requester Lin Itern/GL/WO

~ 0 001 0410 J 96 9DEDC.~TD

~

COIL SOLENOID Ul Ul

[L

J General Location: La1~ge Cast.

Revision 01 Req Mbr Seq Job w

I f-Bin Nbr Insp Req Lot Number(s)

Suppl.ier L,ol.: Number:

Receiving Document Ava.nte 9. 7. Sc Flowserve Raleigh NC Production Cornpi:my - -."Flowserve US Inc_

l OJ/lS/lB Task

  • rackslip Nbr Nbr ot "Boxes Advice Note Suppl I tern Nbr P:r.oduct Class Code.: 8010 Rejection Rea.son:

j157%B SOLENOID CO.

FE SPRING CA Ce1.~ts Insp Req?

Req?

Qty Rec N

Y.

9 Bal Due OMR Number{si : _______ _

i I INC, 11 11 Recv Qty Drop Ship Qty Page 1 Qty I

I I

to Date Ace Rej Test

~

0 Cl 19 ------ ----- ----- _J_ __

(I G.t~

Drawing No; D-38903 REV-L RMC: 5SS':i5 N

N U)

U) en en IS)

LD' IS) co IS)

N.....

IS) tm-rq41 fu-~

1 ~!~lit l IJ:Vt1 ~

Rece:tver

~---.--=---

q ft,S _

-~-~-r-

~~

~'l Kc&ifl5-Stock C'Jeilt w

e
c u

~

01/14/2013 05:01 9195527742 THE UPS STORE 4378 PAGE 14

'--'UU.'-!;;I' I L..I IVL,IUt,J\\., -'* ' U'U"'T"TUI r \\"LJLJUU '"'Tl I u-1.,-TU"T""L.."TUL..VUU 11 LJLJ,_,

Flowserve Raleigh Part Name: SOLENO!J COIL OHMEGA 10CFR.:1 DEDICATION OF CQMM_ERCIAL GRADE ITEMS Part Number: 04103969OEOCATD Revision; 2 By:* Sizemore 1 Andy Date: 6/20/20111 Code Number(s): C:IYI_I'!..1_1_.

RMC Number: 55555 Ora.wing ~-Jurnber(s): 38903 Technic:::a! Evaluatkm Number:

RTE-0015 PDF000.20 --

Flows8rv@fo.tR.R Number: 256959-001/ Recv.# 347101 Vendor: Ohmega Solenoid Co.

Quantity Received:

9 Dale 01-17-2018

~.,sP-C~S*~--

MethorJ:

l Verification Attributes (Quantity SamplerJ: ___

9~. ~p_c~s_. __ _

Attribute OHMtcGA # 38903 Required Actual Measurement Inspector PER DRAWING Comments SEE COrMvlENl"S UNDER DIM!::NSIONAL CRITERIA FOR M1WER!Al VERIFICA'fiON IF APPUCA8LE 14

p,ec1,a1 Order R;,;nui,,..,,,.,,,~*

Dimensions:

OD-2.255/2.315 Overall Length-4.00/4.06 Height-.380/.420 Dia.-.440/.480 ID.750/.810 Center to Center-.75/l.00 Wire Length-36" WIRE FUNCTION/,L PER PDF00020 2.308, 2.305, 2.302, 2.307, 2.307, 2.307, 2.307, 2.307, 2.307 4.05, 4.06, 4.05, 4.06, 4.06, 4.04, 4.06, 4.05, 4.05

.395,.403,.401,.411,.409,.407,.411,.409,.407

.466,.465,.465,.465,.464,.466,.468,.464,.465

.778,.781,.779,.776,.782,.777,.776,.771,.774

.88,.89,.89,.88,.89,.90,.89,.89,.89

,,,.,.r

µ.1

.:,.,"'r Measuring and Test Equipment Serial #s: Qll3-*369. QI 13-188, Q"!:2-AD/V-108, Tape Measure *328@C:.)1J_'fi 9.J.'J(1l.i.

Verify t11ai Counterfeit and Fraud lent Part/Material Checks Have Bean Performed:~ Jl;.IJ, l,lfl. l 'b Inspector~

-"ss.o Date u :Z:L~-~~-

QA Signature:

~~.l/EL 11 Date

,;;_- / r-I q/

Meihods:

1. Special tests and inspections //
3. Source verification of the material
2. Commercial grade survey of supplier
4. Acceptable supplier/item performance record FORM 36-0a657 ATTACHMENT 1

01/14/2013 05:01 91%527742 THE UPS STORE 4378 J>l)Fl)t)020 SEE DR.\\. WI:NG 33903, NOTE l5 11.ES[ST."'-iCE 'fEST I)

VERJPY DC RESISTANCE TO BE 290-,320 Ol:L\\!S AT AN.tj\\,jBIENT TEMPERATURE OF 70' +/- l0°F.'

D!ELECT!UC TEST.

2)

USIJ',G A BYPOTTESTBR, APPLY l450-l500 VAC, 60 HZ, SrNOLE PHASE, BETWEEN BOTH LEAD W1RES AND BODY OF SOLENOID FOR (I) ONE MfNUIB.

LLvllTS: THERE SHALL BE NO BREAKDOWN OR ARCD-;G, vm;fc\\GE EXCHTA'HON (CURRENT UM.ID TEST

3)

AP1'LY A VQl.TAGE Of [4{),s5 VDC FOR 20 CYCLES, (A COUPLE OF SECOc;DS PER cYCLEJ L!MlTS: CURRENT SHAJ..L NOT EXCEED 0.5 A:vJPERES.

R,ESIST."'-iCE TEST

4)

REVERIHCA TrON OF RESJSTANCE AfTBR COIL COOL OFF, ABOVE.

LfMJTS: OHMS SHAJ..L BE wrnrtN I% OF VALUE Of l), AT 290-320 OH;'v!S.

ATTACHMENT 1 C,1TrAL cz1e PAGE 15 DATE

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 15 Q

OHMEGA SOLENOID CO., INC.

SOlENOIDS

  • TRANSFORMERS
  • MOlDED COILS 10912 So. Paiater Ave. " P.O. Box 2747 PL-45641 81l_l_ TO:

1/12/18 Santa Fe Springs, Calffomia 90670 (562) 9*.14-7948

  • FAX: (562) 941-1981 Flowgerve Flow Conta.*ol Divi<l,ion -

1900 S. Seunders Street Raleigh, NC 27603 SHIP TO:

Flow,ie,:ve Raleigh Operation;, Flo'w Control Divi,iion -

1900 I. Seunder,i Street Raleigh, NC 27603 SHIP VJ4 '

f.0.8.

FedEx Collect Origin Net 30 Releig

,h.,.:*,

'PU.RCl!IASI!: Of(bel(MJM ER' I

, BUYER

.WORK ':ORDEfl N 256959,.-

13525

~1J41',1'1'.l1
V PART NUMSER/DESCFIIPTION UNIT PRICE I

~

9

/

38903 Rgv L COIL

/

ITEM #0001 P/N 04103969DEDCATD COUNTRY 01" ORIGIN: U5A

/

WE HEREBY C!:RTil"Y THI': MJ.!l'ERIAL MENTIONED ON 'l'HJ:5 3HIPl1ER CONFORMS TO ALL PURJ103E3 TO Al?l?LJ:CABLE SPECIFICATIONS Al'ID/OR 3T11.NDA.RD5.

COM!?LE'l'E PHYSICAL AND CHEMICAL T£8T REPORT8 AS 1<.EQUil\\'.l':D ARE ON FILE AND AVAILJ\\1\\LE FOR REVIEW" l?ROCE35ING, PRODUCT TBSTJ:NG, INSPECTJ:ON, COl'fmOL OF RAW )>il\\.'l'l':RllL SHALL BE IN CONE'~E WITH ALL APPLICABLE 5l?ECI!"ICATIONS DRAWINGS AND/OR 3'1'1,.NllAlUl3 OF ALL COPIES ON 'l'HI3 PU!'lCH:l\\.3E OnDER.

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 17 OHMEGA SOLENOID CO., INC.

r*ART NO. I REI/.

38903 L

R.EMARKS Coil Flc,wserve

);_{;~~@

PIN 04103969DEDCATD SEl'{IAI.NO.

RESISTANCE DIELECTRIC CUMEiNT LIMITS RESISTANCE

/

290-300 ()

1500 O.SAMP MAX LIMITS WITHIN

@68'F

@ 140 vpc 1%

1 thru Cf We hereby certify that all tests required by the applicable specification, acceptance test piocedure (ATP), engineering drawing or Purchase Order were performed 100%

and all products delivered meet the

  • funct:~:e~

1

~

  1. 114REVA PAGE 1 OF 1 ATTACHMENT 1

01/14/2013 05:01 91%527742 THE UPS STORE 4378 PAGE 18 - Ohmega Failure Analysis Report ATTACHMENT 2

01/14/2013 05:01 91%527742

~,~-~ La"'T\\..ILV,JU 11 UUCJ OHMEGA SOLENOID CO., INC.

Customer: Flowserve Date: 4-11-22 Information; THE UPS STORE 4378 PN 38903 1 pc Shipped PL-45641 PO 256959 1-12-18 (9 pc lot)

Requirement/Defect Descdption:.*

Resistance 290-300 n 68'F Is 26-70 FaHure Analysis:

Verify reJect low resistance 26.650 @68"F Visual inspection - no defects found to outer molded surface Tear down unit to inspect magnet wire/leadwire solder joint.

PAGE 19 Failure Analysis Repo1 NCR Number; 1539 Part Number: 3890 Note: because the unit is molded with epoxy it is not possible to inspect the coil in stages to find failure Steps taken:

Machine back end of unit to remove outer bobbin flange, exposing magnet wire.

Remove coil wire to inspect solder joint Findings:

Coil is covered by 2 layers of Kapton Tape prior to installing leadwire, solder joint is covered by sleeving and then glass tape hsld in place with yarn.

Unable to determine cause of failure, Possible cause:

Small nick in the magnet wire insulation that over time caused the coil to short out Unable to determine due to nature of coil/molded Suggested improvement:

We wind coil with RSN-00997 varnish to provide ex1ra insulation of magnet wire Completed By:

Tina Miller Ives ATTACHM~NT 2 Date:

6*29-22

01/14/2013 05:01 91%527742 OHMEGA SOLENOID CO., INC.

Customer: Flowserve Date: 4-11-22 Reference;

1) Unit as Received
3) Inside Coil Magnet wire removed up to Kaplan THE UPS STORE 4378
2) Remove Epoxy front end PAGE 20 Failure Analysis Repo, NCR Number: 1539' Part Number: 3890:

Magnet Wire - 2 layers of Kaplan Tape - Glass Tape visible

4)

Solder Joints, sleeving opened to inspect solder joint ATTACHMcNT 2

01/14/2013 05:01 91%527742 THE UPS STORE 4378 -04103969OEDCATD Shipment Data QUANTITY BY CUSTOMER

. Cu~~omer, Site.

.. CoT.. rna.n~.. h~ Peak_l'oy.,er ~C!ml).iny....

Comanche Peak

_ _Duk~ Eneri;:.Y...

Catawba EFH CORPORATE SERVICES Comanche Peak Exelo~

Braidwood Byron First _En_ergy _

Beaver Valley Long term storage FPL En_er~y Seabrook Luminant Comanche Peak

. Nex,t':'raEnergy ~ea brook LLC Seabrook Texas Utilities Electric Co.

Comanche Peak TXU GENERATION COMPANY LP

.. ~l)_':7!1~.C.0.e_Peak Grand Total Qua_ntitY.

12 12 89 89 46 46 62 30 32 8

6 2

4 4

4 4

22 22 8

8 18 18 273 PAGE 21

Retrieved from "https://kanterella.com/w/index.php?title=ML22222A009&oldid=3792309"