ML20077H242

Forwards Info Re RHR & Core Spray Pump Bowl,Cold Worked Stainless Steel & Fracture Toughness Testing of Ferritic Components,In Response to Matls Engineering Branch 830718 Meeting Open Items

ML20077H242
Person / Time
Site:	Limerick
Issue date:	08/04/1983
From:	Bradley E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Schwencer A Office of Nuclear Reactor Regulation
References
NUDOCS 8308090693
Download: ML20077H242 (9)

Text

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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 EDW ARD G. B AUER. J R.

' :::::,',*a".".' as..

EUGENE J. BR ADLEY assessata semenat counse6 i

DON ALD BLANNEN RUDOLPH A. CHILLEMI E.C.MIMMMALL T. H. M AM ER CORN ELL PAUL AUERBACH August 4, 1983 mesistant osmena6 counse6 EDW A RD J. CULLEN, J R.

THOM AS H. MILLER. J R.

IR EM E A. McM ENN A assestant counssk Mr. A. Schwencer, Chief Licensing Branch No. 2 Division o f Licensing U. S. Nucicar Regulatory Commission Washington, D.C. 20555

Subject:

Limerick Generating Station, Enits I & 2 Materials Engineering Branch Open Items

Reference:

Meeting between NRC Materials Engineering Branch and Philadelphia Electric Company on July 13, 1983 File: GOVT l-1 (NRC)

Dear Mr. Schwencer:

The attachment provides information requested by the Materials Engineering Branch at the referenced meeting.

Sincerely, I

Eugen. J. Bradley JTR/gra/56 Attachment Copy to: See Attached Service List 8309090693 830804 PDR ADOCK 05000

cc: Judge Lawrence Brenner (w/ enclosure)

Judge Richard F. Cole (w/ enclosure)

Judge Peter A. Morris (w/ enclosure)

Troy B. Conner, Jr., Esq. (w/ enclosure)

Ann P. Hodgdon (w/ enclosure)

Mr. Frank R. Romano (w/ enclosure)

Mr. Robert L. Anthony (w/ enclosure)

Mr. Marvin I. Lewis (w/ enclosure)

Judith A. Dorsey, Esq. (w/ enclosure)

Charles W. Elliott, Esq. (w/ enclosure)

Jacqueline I. Ruttenberg (w/ enclosure)

Thomas Y. Au, Esq. (w/ enclosure)

Mr. Thomas Gerusky (w/ enclosure)

Director, Pennsylvania Emergency Management Agency (w/ enclosure)

Mr. Steven P. Hershey (w/ enclosure)

Donald S. Bronstein, Esq. (w/ enclosure)

Mr. Joseph H. White, III (w/ enclosure)

David Wersan, Esq. (w/ enclosure)

Robert J. Sugarman, Esq. (w/ enclosure)

Martha W. Bush, Esq. (w/ enclosure)

Spence W. Terry, Esq. (w/ enclosure)

Atomic Safety and Licensing Appeal Board (w/ enclosure)

Atomic Safety and Licensing Board Panel (w/ enclosure)

Docket and Service Section (w/ enclosure)

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. LGS 6 6.)

Response to MTES RHR and Core Spray Pump Bowl Concern ,

IN6 err @The RHR and Core Spray pumps are not part of the re

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pressure boundary (RCPB). They are low pressure ECCS components which are designed to pressures that are less than half the design pressure for Class I RCPB components. The design of the discharge and suction pressure retaining parts of these pumps was based on ') raft ASME Nuclear Pump & Valve Code (1968) and ASME Section VIII. The specified materials were ASTM as allowed by Section VIII, Subsection C, at that time. The bowl, shaft, and impeller are not pressure boundary components; materials for these non- ode parts are not required to be ASME controlled. @PN The pump manufacturer has, for several decades, successfully used ASTM A48 Gr. 308 (grey cast iron) for pump bowls in large condensate pumps i

for all types of power plants. Limerick pump bowls were specified to  !

L ASTM A536, which is a nodular or ductile cast iron now permitted by ASME SectionVIII. The Grade 65-45-12 material used requires a minimum of 122, elongation; this material is considerably more ductile than the aforementioned grey cast iron pump bowl material which has an extensive and excellent performance history.

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. LGS ResponsetoMTE8ColdWorkedStaidssSteelConcern No austenitic stainless steels with a specified minimum yield strength of 90,000 psi or greater are used in ' pressure-retaining ESF components.

Response to MET B Fracture Toughness Testing of Ferritic Components Concern The fracture toughness adequacy of Class I NSSS Reactor Coolant Pressure Boundary (RCPB) and Containment Pressure Boundary (CPB) components have been demonstrated by evaluations of conformance to the requirements of 10CFR50 Appendix G&H an'd 60C 51 respectively. There are no Class II NSSS components used in either of these pressure boundaries.

FerriticClass II components on the shell (safety) side of the Residual Heat Removal (RHR) heat exchangers were tested for fracture toughness l

per GE requirements.

Pressure-retaining ferritic components of the RHR, dore 8 pray and HPCI pumps, consistent with their Draft ASME Nuclear Pump & Valve Code design l basis, were not required to be tested for fracture toughness. These l

l components, however, weWfabricated from materials (A516, Gr. 70; A216, l

j WCB; A350) that have been thoroughly proven in industrial applications and which nomally have good impact properties.

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fh66r &Je, a((c.ctable.

On(q mfernals ae-05ed her he- etActiteerecl Safebt[

feak:s sysben, pressure bour,dctrue s Inserb @ All ferreFee pipckc3 useci un Linese 6qsfeso,s le ft(pe 6A log Gr.& uAtila, based on hable 4.4 ch MURECn 0517, e& LbiF n u I dac+d GLy tem su{T1cuuably Ime ,Wal- elaen %persker e.cald-U tcytal consecut-isvn of A6ME Foj rJe-2sI(abi Os ccusiclered Hic o is toell abore

' %peraktkt9 e InoesF perm heatperal1rre asable me hel lenip-erakure.

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1C. 3. 6 6feamt e FeeJaler Mdecils Corvmaer1h: Tlie. .sha(( cutno- ccaclUdc Nta.b N1e Malbt 6feaoi auJ Feedu>aler 6qs6x Mo}crilare a.ccepfable aul wec4- [he re.lcdeaf rytre-nneetfs o ( . . . . .

because a

\tsbutc cf he maherak used was nc4 provucle;ci.

Resocnse: kppltcable- pipe classes are Shown on FSAR Frejore 5. l- 3. DA [or each pipe- dass % alkached.

Commenh Tlne applbud ukuvec l bsspecc[ lededq as ,

a.Ilccecl. The appucutf should dewoasktle niF k fach skal nacum ehearn a4 fecclcaler conapcneutfs lave- adepuc}e kcuqhness (4r -bheir (uncIcon .

Response: T Li e c ic< s s K n a a.t44 skeoe,f.feedu>afer-pepau3 mcchena.ls (sA tooavrs) are %es~ve cts usect bq 6.E. si fhe cla.ss I Porfiort of fL1e v w a rt sfea.ev, pipw,q. 5 dace dv1pa.c&

4eshkq has been performeci by GE.en Sh los &c 6, %ue. Is reasonable assur~ ace Fltal- Hte daes K componevik poseese aclequabe buqbuness -fbr & heir fanci-an.

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.,'.. $ ,p q lo. 5.G Ammr I C_t. ass D60 PRIMARY RATING 900 psic 0 B50*F Class DBD ANSI B 31.1.0 CARBON STEEL P2PE: 34": - ASTM A-155 Grke-70, Class 1 or A-672 Cr. B-70, class 22 24" & Smaller - Seamless ASTM A-106 Gr. B (Note 1) 34" 1.740" min. wall 4" thru 24"  : Sch. 120 4" bu 3" Sch. 160 FITTINGS: 34" Butt welding, wall t.hickness to match pipe. ASTM A-234 Grade WPC-W Seam welded (ASTM A-515 Gr 70) 2

• thru 24" Butt welding, wall thickness to match ,

pipe ASTM A-234 Gr. WPB (se anies s ) .

. 2" and smaller: 60000 socket welding ASTM A-105 Gr. II er ASTM A-105-71 FIANGES: ASTM A-105 Gr. II bored to match pipe FAD or ASTM A-105-71 3* and larger: 9000 weld neck, large T&G 2 "s 15006 weld neck, large T&G 2" and smallers 15000 socket weld, large T&G BOLTING: Bolts: ASTM A-193 Gr. 37 Nuts: Etx, ser.1-finished, ASTM A-194 Gr. 2R

, GASKETS: Standard 304 S.S. and asbestos w6und Flexitallic "R-3"

' or I.amons *W", large T&G i Gate Globe check VALVES 3" and larger: 9000BW DBD-GT DBD-GS DBD-CK 2 ": 1500fBW CBD-GT CBD-GB CBD-CK 2" and smallers see Note 5, General Notes, Field.

l JOINTS: Welded, except at flanged equipment connection.

1 Field Weld End Preparation: See Sheet 72 Wald End Transition: See Sheet TType I Branch Connections: See Sheet T DetaTi-"YI NOTES:

1 Seamless ASTM A-106 Gr.C, is optional for l

20" DBD-201 and -202 -

CORROSION __AIlOWAN.CE : 0.0B0" .

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blASS Db6 PRIMARY RATING 900 psia # 8500F Class DB2 ASMZ 3&PV Code Sect.III, Class 2 CARBON STEEL i PIPE:

Seamless ASME SA-106 Gr. 3 4" thru 2'4 : Sch..ido

.g" thru 3= Sch'. 160

' FITTINGS: 2 and larger: Butt welding, wall thickness to F.atch pipe ASME SA-234 Gr. WPB (s e amle s s ) .

2" and smaller: 60004 socket welding ASME SA-105 Gr. II FIANGES: or ASTM A-105-71 ASME SA-105 Gr. II bored to match pipe F&D br ASDI A-105-71 3" and larger: 900f weld neck, large T&G s

2g'and 2 smaller - 15004 weld neckelarge T&G

' 15004 socket weld, large T&G

_ BOLTING : Bolts: ASME SA-193 Gi. 37 wuts:

• Per DBA class GASKETS: ~

Beundard 9A-3" or famnns.304 S.S. "W",and large asbestos T & G wound Flexitallie VALVES:

3" and larger: Cate Globe Check 9006BW EFFGT Das-cB 2*. . .

1500fBW dab-cI CBB-GT CBB-GB 2" and smaller: 15000SW CB&,4T CBA-GB CBB-CK CBA-CK 3OIN:'S:

Welded, except at flanged equipment connection.

Field Weld End Preparation: see Sheet 72 Wald End Transition: Swa Sheet 75 Type Branch Connections: I See Sheet __Je Detaill t

i CQRROSION ALLOWANCE: 0.080"

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7 ef 3 3 C Lass eB6 PRIMARY RATING 600_psig 9 8500F Class EBB ASME B&PV Code Sect. III, Class 2-CARBON STEEL.

PIPE *

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26" and larger: Seam Welded ASMESA-155 Gr. E-70 ClassI or SA-6 Cr. B-70, Class 22 or Sez-less AS.T SA-106 Gr. C 24" and smaller: Seamless ASME SA-106 Cr. B 26"s .928" min. wall

• 8 " thru 2 4" : sch. 100 Note 1.

8" thru 24":

sch. 80 2

• s' #Au. F'* Sc#. Bo Welc, Note T 4" thfu &* Sch. 160 FITTINGS: 26" and larger: Butt welding, wall thickness to match pipe, ASME SA-234 Gr. WPS-W or WPC-W seam welded (ASME SA-515 Gr. 70) 2 " thru 24": Butt welding, seamless, wall thickness ,

to match pipe ASME SA-234 Gr. WPB 2" and smaller: 60004 socket welding ASME SA-105 Gr. II

, or ASTM A-105-71 FLANGES: ASMI SA-105 Gr. II, bored to match pipe, F&D or ASTM A-105-71 2

• and larger: 6004 weld neck, large T&G 2" ,and smaller: 6000 socket weld, large T&G 15000 8.W. , raised face (Note 3)

GASKETS: 8tandard 304 S.S. and asbestos , wound Flexitallic "R-3" or Lamons "W", large T&G '

BOLTING: Bolts: ASME SA-193 Gr. B7,

( Ruts: . Per DBA, class i

VALVES:

Cate Globe Check Plue .

24" and larger: 6000BW HiiGT ESB-GB EBB-CK W P(

2" and smaller 60045W EBB-PI 2" and smaller: 1500fSW CBA-GT CBA-GB CBA-CK JOINTS: Welded except at flanged equipment connections.

Field weld and preparation See Sheet 72 (note 5 belc

Weld end transitions see Sheet P ype 1

! Branch connections: See sheet IE_DetaiT T NOTES: 1. For EBB ,126 (226),127 (227), 129 (229), 13,0 (230),

a 133 (233) thru 136 (136) l , 2. For ESS-101(100-lOS(209),II4(t.Is),fts(2,I5),lSt(2 31) ,132 (232)

I 12i(.22 Q, r ens- Ms.(s42) -

l 3. Use only for matching with CRD system valve PSV-F012 l 4. For EBB-135 (235) use sch. 120 CORROSION _ ALLOWANCE- .120" - steam 1

. __ .08" - water l *sch.120 piping materials already purchased for 14"

_ EBB-129, 4" EBB-133, 4" EBB-134 and 10" EBB-134 are acceptab:

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