ML20083Q478

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Rev 19 to Nuclear Guide 1.84, Design & Fabrication Code Case Acceptability,Asme Section,Div 1
ML20083Q478
Person / Time
Site: Oconee, Catawba, 05000000
Issue date: 01/06/1983
From: Wyke T
DUKE POWER CO.
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ML20083Q427 List:
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1.84, NUDOCS 8302250406
Download: ML20083Q478 (12)
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,. F0tM NG-1, REV 1 l N DUKE POWER COMPANY Page 1 of 1 Nuclear Guide 1.84 l NUCLEAR GUIDE Effective Date 1/6/83 Revision 19 2

Design and Fabrication Code Case Acceptability ASME Section Ti tle *.

Division 1 Reference NRC Regulatory Guide Number 1.84 Revision 19 4 Disposition

  • of Current Disposition of Previous RG Revisions Plants Affected This RG Revision Revision Number Disposition t

QOconee DMcGuire G Catawba Adopted 18 Adopted G Project 81 Adopted 18 Adopted D

l

  • Disposition is either " Adopted, " Adopted with coment", " Partial Compliance",

"Not Applicable", or "Under Review". If " Partial Compliance" is indicated, i

attach Form NG-1A. )

0 Originated By: Coordination With: Re i wed By: q Name M S. K. Blackley Jr.

T F % ke Desian Engineering Dept Design fngineering Date 7- El-61-- 7" $t'4L 7

Approval Action:

O Waived O Waived mg  % Approved s

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/pme: U.S. NUCLEAR REGULATORY COMMISSION Aprii tse2 Uhg@ OFFICE OF NUCLEAR REGULATORY GUIDE l Q ,, g l HEGULATORY GUIDE 1.84 DESIGol AND FABRICATION COJE CASE ACCEPTABILITY ASME SECTION 111 OlVISION 1 A. INTRODUCTION Part 50 requires, in part, that measures be established for i the control of special processing of materials and that i Section 50.55a, " Codes and Standards," of 10 CFR proper testing be performed.

Part 50, " Domestic Licensing of Production and Utilization Facilities," requires,in part, that components of the reactor his regulatory guide lists those Section ill ASME Code coolant pressure boundary be designed, fabricated, erected, Cases oriented to design and fabrication that are generally and tested in accordance with the requirements for Cass 1 acceptable to the NRC staff for implementation in the components of Section III, " Nuclear Power Plant Compo- licensing oflight. water cooled nuclear power plants. '

nents,"1 of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equivalent B. DISCUSSION quality standards. Footnote 6 to 550.55a states that the use of specific Code Cases may be authorized by the De ASME Boiler and Pressure Vessel Committee pub.

Commission upon request pursuant to $50.55a(aX2Xii), lishes a document entitled " Code Cases."8 Generally, the which requires that proposed alternatives to the described individual Code Cases that make up this document explain requirements or portions thereof provide an acceptable the intent of Code rules or provide for alternative require-level of quality and safety. ments under special circumstances.

General Design Criterion 1 " Quality Standards and Most Code Cases are eventually superseded by revision f Records," of Appendix A, " General Design Criteria for to the Code and then are annulled by action of the ASME Nuclear Power Plants," to 10 CFR Part 50 requires,in part, Council. In such cases, the intent of the annulled Code Case

( ' ' that structures, systems, and components important to becomes part of the revised Code, and therefore continued safety be designed, fabricated, erected, and tested to qual- use of the Code Case intent is sanctioned under the rules of ity standards commensurate with the importance of the the Code. In other cases, the Code Case is annulled because safety function to be performed.Where generally recognized it is no longer acceptable or there is no further requirement codes and standards are used, Criterion I requires that they for it. A Code Case that was approved for a particular be identified and evaluated to determine their applicability, situation and not for a generic application should be used adequacy, and sufficiency and be supplemented or modified only for construction of the approved situation because as necessary to ensure a quality product in keeping with the annulment of such a Code Case could result in construction required safety function. that would not meet Code requirements.

Criterion 30," Quality of Reactor Cholant Pressure Bound- De Code Cases listed in this guide are limited to those ary," of the same appendix requires,in part, that cqmpo- cases applicable to Section III that are oriented toward nents that are part of the reactor coolant pressure boundary

  • design and fabrication.

be designed, fabricated, erected, and tested to the highest quality standards practical. All published Code Cases in the area of design and fabrication that are applicable to Section III of the Code Appendix B, " Quality Assurance Criteria for Nuclear and were in effect on July 14, 1981, were reviewed forl*

Power Plants and Fuel Reprocessing Plants," to 10 CFR inclusion in this guide. In addition to the listing of accept-able Code Cases, this revision of the guide includes listings I

Copies m.y b. obtained from the Americ.n Society of Mech leal Ensineers. United Ensineering Center, 34s E.st 47th Str. n. t. .

New York, New York loo 17. Lines indicate sub.tantive changes from Revision 18.

USNRC REGULATORY GUIDES mm n o nt to . ,. . n o{m .

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of (1) Code Cases that were identified as acceptable in a (2) Code Cases applicable to valve design: ,

prior version of this regulatory guide and that were annulled after the original issuance of this saide (June 1974)and (2) 1700  !!-03-75 Determination of Capacities of Lipid 03 19-79 Relief Valves Sectionll!, Division i, 1 Code Cases that were identified as acceptable in a prior (N 94) /

Cass 1,2, and 3 version of this regulatory guide and that were superseded 1701 2 07-09 79 Determination of Capacities of Vac-by revised Code Cases after the original issuance of this (N-95 2) uum Relief Valves, Section!!!,Di-guide (June 1374). Code Cases that are not listed herein are vision I, Casses 2,3, and MC and either not endorsed or will require supplementary provisions Division 2 Concrete Containments on an individual basis to attain endorsement status.

1761 1 01 14 77 the of SB 148 Alloy CA954 SectionIll, l The endorsement of a Code Case by this guide consti- (N-133) 01 07-80 Division 1. Cass 3 N-214 05 15 78 Use of SA 351, Grade CN7M, for tutes acceptance of its technical position for applications 07-13 81 Valves for Section III, Division I, l not precluded by regulatory or other requirements or by the recommendations in this or oSer regulatory guides. Construction Contingent endorsement is indicated in regulatory position N-282 05 15-80 Nameplates for Valves, Section Ill, C.I.c for specific cases. However,it is the responsibility of Division I, Cass I,2,and 3 Con-the user to make certain that no regulatory requirements struction N-300 11-17-80 Pressure Temperature Ratings,1&dro-are violated and that there are no conflicts with other static Tests, and Minimum Wall recommended limit:tions resulting from Code Case usage.

Thickness of Valves, Section Ill, Acceptance orendorsement by the NRCstaff applies only Division 1 Cass I N-313 05-11-81 Alternate Rules for Half-Coupling to those Code Cases or Code Case revisions with the date of Branch Connections, Section Ill,

" Council Approval" as shown in the regulatory position of Division I this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Co ie Cases will require evalua-(3) Other Code Cases related to design:

tion by the NRC staff to determine if they qualify for inclusion in the approved list. Because of the continuing 1620 03 02 74 Stress Category for Partial Penetra-change in the status of Code Cases,it is planned that this (N 61) 01 08-79 tion Welded Penetrations, Sec-l guide will require periodic updating to accommodate new tion III, dass 1 Construction Code Cases and any revisions of existing Code Cases.

07 10-78 External Pressure Charts for Iligh C. REGULATORY POSITION 1630-1 (N 66-1) Yield Strength Carbon Steels and Low Alloy Steels. (Yield Strength

  • -) 1.# l
l. The Section Ill ASME Code Cases8 listed below (by above 38 Ksi to 60 KsiInclusive.)

For Section III, Cass 1,2,3,and MC number, date of Council approval, and title) are acceptable 1739 4 11 17 80 Pump Internal items, Section lit, to the NRC staff for application in the construction of com-Division 1, Cass I,2, and 3 ponents for light-waters:ooled nuclear power plants. Their (N-119 4)

N-1961 01 08-79 Exemption from the Shakedown use is acceptable witidn the limitations stated in the "hgairy" Requirements When Plastic Analy-and " Reply" sections of each individual Code Case, within sis is Performed for Section 111, Divi-the limitations of such NRC or other requirements as may sioni, dass I and CS Construction exist, and within the additional limitations recommended 08-28 78 Code Effective Date for Component by the NRC staff given with the individual Code Case in the N-220 07 13-81 Supports, Section Ill, Division 1 l listing. The categorization of Code Cases used in this guide nuaes for Sequence of is intended to facilitate the Code Case listing and is not N-228 03 19 79 . ' ' "

Co. v..uon of Code Data Report intended to indicate a limitation on its usage- ,

Forms and Stamping for SectionIII-Cass I,2,3 and MC Construction

a. Design oriented Code Cases (Code Case number,date 0830-79 Boundaries Within Castings Used for of Council approval,3 and title): N 243 Core Support Structures,Section III, Division 1, Oass CS

(!) Code &,es applicable to piping design: 07 09-79 Certified Design Report Summary for N-247 Ccunpanet Standard Sapports Section 1745 03 01-76 Stress Indices for Structural Attach- III, Division I, Cass 1,2,3 and MC (N 122) 01 08-79 ments, Cass I, Section Ill, Division 1 N-272 05 15 80 Compiling Data Report Forms, Soc-03-23 77 Finned Tubing for Construction, tion Ill, Divisica 1 l(1797 N 160) 03 17-80 Section III, Division I N-309 051181 Identification of Faterials for Com-ponent Supports, Section Ill, Divi-2A numerical listing of the Code Cases appearsla the appones. ,gg, g Swhen more than one date is given,the earlier date is that on N-319 07 13 81 Alternate Procedure for Evaluation which the Code Case was a oved by the ASME Council and the of Stresses in Butt Weld Elbows in: ~

Igegag(gthat on wh6 he code Case was reeffirined by the g 3p y, ggg g ,

1.84-2

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b. Fabrication oriented Code Cases: (2) Other Code Cases related to fabrication:

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(1) Code Cases related to welding and brazing: 1588 08-13 73 Electro Etching of Section III Code I (N 46) 03 19-79 Symbols l 1609-1 03 01 76 Inertia and Continuous Drive Fric- N-215 05 15 78 Intepally Finned Titanium Tubes, (N-55) 08-28-78 tion Weldin g.Section I, III, IV, VIII, Section III, Division 1, Oass 3 Con-07 13-81 Division I and 2,and IX struction 03 17-80* Projection Resistance Welding of N-237 07 09-79 Hydrostatic Testing of Internal Piping,Section III, Division 1 l(1791 N-154) Valve Seats,Section III, Division 1 Cass 1,2 and 3 Valves N-240 03 19-79 Hydrostatic Testing of Open Ended N-217-1 01 07-80 Postweld Heat Treatment of Weld Piping,Section III, Division 1 Deposit Cadding on Casses 1,2,3, N 241 07-09 79 Hydrostatic Testing of Piping, Sec-MC, and CS Items,Section III, Divi- tion 111, Division 1 sion 1 N-229 01 08-79 Alternate Rules for Fabrication c. Code Cases with contingent approval:

Welding SB-148 Alloy CDA 954 for Section !!!, Division 1, Oass 3 1540-2 01 14-77 Elastomer Diaphragm Valves, Sec-Construction (N-31) 01 07 80 tion III, Cass 2 and 3 l N-233 01 08-79 Alternate Rules for PWHTof P-No.

6, Group 4 Material for Section III, Code Case 1540-2 is acceptable subject to the following Division 1, Oass 1,2, or3 Construc- conditions in. addition to those conditions specified in tion the Code Case: Each applicant who applies the Code N-260 01 07-80 Weld Repair of SA 182 Type 316 Case should indicate in the referencing Safety Analysis Forgings, Section 111, Division 1, Report that the service life of the elastomer diaphragm Casses t,2,3,and MC should not exceed the manufacturer's recommended N-261 05-15 80 Weld Procedure Qualification for service life. This recommended service life should not Materials with Impact Requirements exceed 1/3 of the minimum cycle life as established by for Section III, Division 1, Cass 3 the requirements of paragraph 3 of the Code Case. In

( Construction addition, the service life of the elastomer diaphragm

% 01 07 80 Electric Resistance Spot Welding should not exceed 5 years, and the combined service and

' ( , ,. N-262 for Structural Use in Component storage life of the elastomer diaphragm should not

N-271 03 17 80 Simplified Method for A:talyzing Flat Face Flanges with Metal to N-32-4 03 06-81 Hy.!rostatic Testing of Embedded Metal Contact Outside the Bolt Cass 2 and 3 Piping for Section III, Grcle for Section 111, Oass 2,3,and DiMsion 1 Construction MC Construction N-276 03 17-80 Welding of SA-358 Pipe,Section III, Code Case N-32 4 is acceptable subject to the following Division I conditions in addition to those conditions specified in N-292 01 05-81 Depositing Weld Metal Prior to the Code Case:

Preparing Ends for Welding Sec-tion III, Division 1, Cass 1,2 and 3 Construction The acceptance is based on the following clarification and interpretation. Code Case N-32 4 does not replace Code Case N-292 is acceptable subject to the fo!!owing parapaph NC/ND c129, " Provisions for Embedded or conditions in addition to those conditions specified in the Insecessible Welded Joints in Piping," of the Code. The Code Case: Cass 3 piping, which is longitudinally welded intent of the Code Case is to (1) provide additional and which has a weld efficiency factor of 1.0 as selected testing above Code requirement and (2)to permit liquid from Table ND 3613.41, should receive a 100 percent penetrant or magnetic particle testing in place of radio-volumetric examination (RT or UT)of the deposited weld paphic testing for Osts 3 piping with 3/8" nominal metal in accordance with the requirements of ND 5000. wall thickness orless.

N 302 03 16 81 Tack Welding.Section III, Divi-sion 1 Construction Parapaph (1) contains an additional requirement to the N-320 07 13-81 Alternate PWHT for SA 487. Grade Code. It is, therefore, acceptable but unnecessary to CA6NM,Section III, Division 1 include in the Code Case. Parapaph (2)is a variationin 1 the volumetric examination technique and is acceptable 4 as written. Parapaph (3) contains an additional require-7 The code case was annutted on Janu datory annulment date).It was reinstated ob14,rch sa es 1(ASME

.'.19ao. anen-Becaux ment and is not a relaxation of the Code. It is, there-( '"

f M, acceptable but unnecessary to include in the Code N.Ye'"N"RT"c'dn' die'rYaNh$*Ea N dierENs Period of 1/14/s0 throush 3/3 7/a0. Osc.

1.84-3

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! 1621 2 05 25-77 Internal and External Valve items, considered adequate to impose these loads. It is not (N 62 2)' 05 15 80 Section III, Division t, Oass i,2 and intended that piping reaction loadings be simulated in.

3 Line Valves the hydrostatic testing.

Code Case 16212 is acceptable subject to the following _1792 2 01-08-79 Fiberglass lainforced Thermosetting condition in addition to those conditions specified in the (N-155 2) Resin Pipe, Section Ill, Division 1 Code Case: The Code requires that Cass I and Oass 2 valve manufacturers meet the provisions of NCA4000, Code Case 1792-2 (N 155 2)is acceptable subject to the

" Quality Assurance," and in addition, Oass 3 valve following condition in addition to those conditions speci-manufacturers should also meet the provisions of NCA fied in the Code Case: The applicant should comply with 4000. the additional requirements that are specified in Regula-l tory Guide 1.72, " Spray Pond Piping Made from 1711 11 03-75 Pressure Relief Valve Design Rules, Fiberglass Reinforced Thermosetting Resin."

(N-100) 01 08-79 Section III, Division 1, Cass I, 2 and 3 N 1921 08-30-79 Use of Flexible llose for Section111, Division I, Oass 1, 2, and 3 Con-l _ Code Case 1711 is acceptable subject to the following struction

! conditions in addition to those conditions specified in the Code Case. The following information should be Code Case N-1921 is acceptable subject to the following provided in the Safety Analysis Report: conditions in addition to those conditions specified in j the Code Case: The applicant should indicate system l (1) ' If stress limits are used in excess of those specified application, design and operating pressure, and pressure-for the upset operating condition, it should be temperature rating of the flexible hose. Data to desnon-demonstrated how the pressure relief function is strate compliance of the flexible hose with NC/ND 3649, ensured. Refer to paragraph 3.1,Section I, of the particularly NC/ND 3649.4(e), are required to be furnished Case for Cass 1 and paragraph 3.2,Section II, of with the application.

I the Case for Gass 2 and 3 pressure relief valves.

N-238 05 14-79 High Temperature Furnace Brazingof (2) If Case 1660 isto be used in conjunction with this Seat Ringsin %Ive liodies or Bonnets Case, it should be stated that the stress limits of for Section III, Division 1, dass I, Case 1660 supersede those of paragraph 3.2(b), 2,and 3 ValvesSection I, of Case 1711. Functional assurance of s -

(1) above is required in all situations. Code Case N 238 is acceptable s. abject to the following conditions in addition to thoes conditions specified in 1720-2 Il 20 Weld End Preparation fer Section 15, the Code Case: The furnace brazing process procedure Division 1 Construction qualification should include a verification for nonsensi-l(N 106) tiration as given in ASTM A 262 70, Practices A or E, or Code Case 1720-2 is acceptable subject to the following ASTM A 708-74 whenever materials subject to sensiti-condition in addition to those conditions specified in the zation are to be brazed. Documentation is required that Code Case: The acceptance of weld end preparations a nonsensitizing brazing procedure was employed for other than those shown in Figures 1,2, and 3 of the valves produced to this Case.

Code Case should be evaluated on a case-by case basis.

N-252 11 19-79 Low Energy Capacitive Discharge 1780-1 0710-78s Hydrostatic Testing and Staraping Welding Method for Te .porary or (N 1461) of Components,Section III, Divi- Permanent Attachments to Com-sion 1 Construction ponents and Supports,Section III,

' Division 1, and XI Code Case 17801 is acceptable subject to the following conditions in addition to those conditions specified in Code Case N 252 is acceptable subject to the following

. the Code Case: On a generic basis, the application of the conditions in addition to those conditions specified in Code Case islimited to pu.aps and valves. Application to the Code Case: The applicant should indicate in the other components should be treated on a case-by cass Safety Analysis Report the application, the material, basis. Each licensing applicat'on in which the Code Case and the material thickness to which the strain sage or is to be used should contain information showing that, thermocouple wSI be attached by CD welding.

as a minimum, the closure fixture willimpose loads that result in stresses equal to or greater than those induced N-263 03 17-80 Alternate Thread Forms, S./ 9 during the hydrostatic test of a complete rump assem- and Fits for Component Sup-

  • bly. A closure fixture for the part being '.ested that is ports,Section III, Division 1 similar in size and shape to the actud mating part is . l Code Case N-263 is acceptable subject to the following ~

conditions in addition to those conditions specified

'correened dese. In the Code Case. The following information should be 1.84 4

. .. ~

- provided in the Safety Analysis Report:(1)a description Code Cases, which were annulled on or after July 1.1974

(. of the applkation, (2) a need for the use of the Code are listed below by number, effective dates,' and tit'e.j Case, and (3) a demonstration that support design will

.y withstand mnimum conditions ofloading with the worst 1361 2 03 09 72 Socket Welds, Section ill combination of thread tolerance. 03 01 79 N-275 05-15-80 Repair of Welds, Section Ill,IXvision I Code Case 1361-2 was acceptable when used in connec-tion with Section 111, paragraph NB 3356, Fillet Welds.

Code Case N-275 is acceptable subject to the following condition in addition to those conditions specified in 1461 Is 03-09-72 Electron Beam Welding, Section 1, the Code Case: Use of the Code Case is applicable only 02-16-77 III, and Vill, Division I and 2 when the removal of an indication requires that the full 1470-2' 12-18-72 External Pressure Charts for High-weld thickness be removed and,in addition, the backside 11 04-74 Strength Carbon Steels and for of the weld assembly joint is not accessible for the Low Alloy Steels.Section VIII, Divi-removal of examination material. If an indication is sion I and 2, and Section III rernoved and weld-metallayers stil! remain, itis not accept- 1471 1 03-09-72 Vacuum Electron Beam Welding of able to souge through the wallin order to qualify for use 01 01-78 Tube Sheet Joints,Section III of the Code Case. Instead, examination of the cavity is 14771 03 09-72 Use of 1970 Addenda of ANSI required when such an indication has been removed. 01 0! 78 B31.7, Section 111 1494-1 03 03-73 Weld Procedure Qualification Test, N-284 08 25 80 Metal Containment Shen Buckling 01-01-78 Section III Design Methods,Section III, Divi- 1506 12 13 71 Stress Intensification Factors, Sec-sion 1, Cass MC 01 01 78 tion Ill, Cass 2 and 3 Piping 1516-2 08 11 75 Welding of Seats or Minor Internal Code Case N-284 is acceptable subject to the fo!!owing (N-24) 07 01-78 Permanent Attachments in Valves condition in addition to those conditions specified in the for Section Ill Applications Code Case: Prior to implementation of the Code Case, 1516-2 11 20-7810 Welding of Seats or Minor Internal the applicant must demonstrate to the satisfaction of the (N-24) 01 01 80 Permanent Attachments in Valves NRC staff (via Safety Analysis Report) that any axi- for Section III Applications symmetric techniques that are proposed will be applicable 1533: 06 14-72 Pressure Temperature Ratings of

! to a vessel having large asymmetric openings and that the 07 01 75 SA-351 Grades CF8A, CF3, and

'v overall margin used to prevent shell bucklingis acceptable. CF3M,Section III 1535-2 04-30-73 Hydrostatic Testing of Sec_ tion III.

N-314 05 11-81 Alternate Rules for Thread Engage- 03 21 77 Cass ! Valves ment, Sectic,n Ill, Division 1 1536 08 14-72 Cosing Scam for E!cetrical Penetra-07 01 77 tions for Section III, Cass 2,3,and Code Case N-314 is acceptable subject to the following MC conditions in addition to those conditions specified in the Code Case. Applicants should identify in their Safety Analysis Report: (I) the minimum length of s thread engagement and (2) the procedure used to estab- Earlier date-date Code Case was a owed by ASME Councut lish thread engagement

  • later date-date Code Case was annulled.There more than two dates
  • PP'*rdate middle th' l'(ai datewas or dates) ns the thedate date ther the Code of rearnrmation of theCase Code was annulled. The Case.

b318 07 13-81 Procedure for Evaluation of the .f Design of RectanguIat Cross Section C*d' C**** '3 8.s.3, a s 34, and is s4, which were listed in the orisinal issue of this suide,were annulled by Council action prior to Attachments on Cass 2 or 3 Piping, July 8, as74.

Section III, Division I s Code Case 14631 is no lonser listed as a Section III Code Case and is therefore deleted from the acceptable lastans.

Code Case N-318 is acceptable subject to the icilowing conditions in addition to those conditions specified in the Code Case. Applicants should identify in their ,,,,g *ya g ag C,o,d',C 3 g 7ps,wu'b'

,e DSU annutment was not noted until pubuestion of Supplement No. I3 to Safety Analysis Report: (1) the method of lug attach- 'h' I ' C'd' C'"**

ment, (2) the piping system involved, and (3) the loca- Io This revision of the Code Case was ortsinany approved by the tion in the system where the case is to be applied. ASME CouncD on 8-t t 7s and was annulled on 7178 becavae of the publication of revisions to Section Illin the Winter 1977 Addenda.

However the users did not believe that the Code Case was covered

2. Code Cases that were endorsed by the NRCin a prior in the dode revision; therefore, ASME reafGrmed the Case on version of this guide and were later annulled by action of ' **"

M[n's'e:In*'tECodeNseNNEc'o'n*sEderUthat5h in effect durins the period 7 t.ta throush 8 3 2o 7s.

was the ASME Council should be considered as deleted from

( the list of seceptable Code Cases as of the date of the

+ ASME Council action that approved the annulment. Such  : Code Case was annulled on date as indicated, but the annus-inent was first indicatedin Revision 32 to this suide.

1.84-5

1614 12-17 73s flydrostatic Testing of Piping Prior .

15391 11 21-77 Metal Bellows and Metal Diaphragm 01 01 79 To or Following the Installation of (N-30-1) 01-01 81 Stem Sealed Valves, Section IH, D -

Spray Nozzles for Section 111, Division 1, Casses I, 2, and 3 Casses 1,2, and 3 Piping Systems

. 1541 3 05 15 78 Hydrostatic Testing of Embedded 03 02-74 Design by Analysis for Section III -

1623 (N 32 3) 07-01 79 Cass 2 and Cass 3 Piping for Sec- 03-01 79 Cass 1 Sleeve-Coupled and Other tion III, Division 1 Construction Patented Piping Joints 1552 1 08-29 77 Design by Analysis of Section HI, 04 29-74 Brazing of Seats to Cass 1,2,and 3 1633 (N 351) 07 01 79 Cass ! Valves 01-01-78 Valve Body or Bonnets, Section 111 1553 1 88 03-03 75 Upset Heading and Roll Threading t2 08 12 74 Stress Criteria for Section lit,Cass 2 01 01 76 of SA 453 for Boltingin Section til 1635 1 07 01 77 and 3 Valves Subjected to Upset, 15551 01 14 77 Certification of Safety Relief Valves, Emergency, and Faulted Operating 01-01 78 Section Ul, Division 1 Conditions 1569 03 03 75s Design of Piping for Pres;ure Relief 07-01 79 Valve Station, Section IH Code Case 16351 was acceptable subject to the interpre-tation that the stress limit designations of " Upset,"

" Emergency," and " Faulted" do not necessarily imply Code Case 1569 was acceptable subject to compliance agreement with specified plant conditions applicable to

'with the recommendations contained in Regulatory ASME Code Cass 2 and 3 components for fluid systems.

Guide 1.67, " Installation of Overpressure Protection 'Ihese designations should be established and justified Devices." in the design specifications.

1573 04-30-73 Vacuum Relief Valves, Section HI 16361 : 08-12-74 Stress Criteria for Section 111, Cass 2 01 01 78 07-01-77 and 3 Pumps Subjected to Upset, 1574 04 30-73 Hydrostatic Test Pressure for Safety Emergency, and Faulted Operating 12-31 74 Relief Valves, Section IU Conditions 15801 11 05 73 Buttwelded AlignmentTolerance and 01 01 78 Acceptable Slopes for Concentric Code Case 1636-1 was acceptable subject to the inter.

Centerlines for Section !!!, Cass 1 pretation that the stress limit designations of " Upset,"

2,ad 3 Construction " Emergency," and " Faulted" do not necessarily imply 1581 06-25 73 Power-Operated Pressure Relief =

agreement with specified plant conditions spplicable to 03 01-79 Valves, Section HI ASME Code Cass 2 and 3 components for fluid systems.

1601 11-05-73 IJmits of Reinforcement for Two- These designations should be established and justified in 07 01 74 'shirds Area, Section Ill, Oass 1 the design specifications.

1606-1 12 16 74 Stress Criteria Section III,Oasses 2 07 01-77 and 3 Piping Subject to Upset,Emer- 08-12-74 Interim Requireme sti for Certifica-gency, and Faulted Operating Con- 1651 03 01 79 tion of Component Supports, Sec-ditions tion Ill, Subsection NF Code Case 16061 was acceptable subject to theinter- 1657 11 04-74 Stress Criteria for Cass 2 and 3 07 01 77 Atmospheric and low Pressure J pre:ation that the stress limit designations of " Upset," (0-15 psis) Steel Storage Tanks 1,

" Emergency," and " Faulted" do not necessarily imply 11 04 74 Interconnection of Two Piping J 1659 j agreement with specified plant conditions applicable to 07 01 77 Systems for Section 111, Cas 1,2, ASME Code Cass 2 and 3 components for fluid systems- and 3 Construction j 1hese designations should be established andjustifiedin 11 04 74 Overpressure Protection UnderEmer-1660 ,

the design specifications.

(N-77) 03 01 79 gency Operating Conditions for Section IH, Cass 1 16071 11 04-74 Stress Criteria for Section 111, 07 01-77 Casses 2 and 3 Vessels Designed to 1661 11 04-74 Pos' weld Heat Treatment P-No. I 01-01 78 Materials for Section HI, Oass 1 NC/ND-3300 Excludingthe NC-3200 Vessels Alternate 11 04 74 Shop Assembly of Components, AP-1662 01-01-78 purtenarrAs and Pi;ing ibassemblies Code Case 16071 was acceptable subject to the inter- for Section lit, Cass 1,2,3 and MC pretation that the stress limit designations of " Upset," Construction

" Emergency," and " Faulted" do not necessarily imply agreement with specified plant conditions applicable to is code cases asas and soss were approved er counen on July 3.

ASME Code Cass 2 and 3 components for Guld systems. us se,3; These designations should be established andjustifiedin {y8 g3 *a,d g',d,,*"g,^,g Ny,*d'*g j,c, ode eg ,

inesuded in this guide.

the design specifications,

..)

1.84-6

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j . .

81 08-11-75 Single-Welded, Full-Penetration Side-

  • 11-04 74 Pressure Temperature Ratings for 1719 1665 07 01 76 wall Butt Jointsin Atmospheric Stor-

? (N-81) 07 01 78 Cass 1 Valves Made from 5 Cr-1/2 age Tanks,Section III, Division 1, Mo, Section IH

( 11 04 74 Nuclear Valves for Section 111, Osss 2

\1 1672 03-21 77 Division 1 Oass 1,2, and 3 Con- 1726 11 03 75 Refinement ~ of Low Alloy Steel (N 109) 03 01-79 Heat Affected Zone Under Overlay struction Qadding Section HI, Division I, 1675 12-16 74 Tubesheet to Shell or Formed Head Cass 1 Componenta 07 01-76 Weld Joints, Section HI, Osas 1 1727 12-22-75 Alternate Test Fluids, Section HI, Vessels 88 (nil 0) 01 01 79 Division 1 1676 12 16-74 Carification of Stress Intensities in 07 01-76 Curved Pipe or Welded Elbows, Code Case 1727 was acceptable subject to the follow-Section HI 12 16 74 Carification of Flange DesipiLoads, ing condition in addition to those conditions specified 1677 in the Code Case: The applicant should provide justifi-(N-82) 03 01 79 Section III, Cass 1,2, and 3 cation in the referencing Safety Analysis Report for the 1678 12 16 74 Butterfly Valves of Orcular Cross 01 08-79 Section larger than 24 in. NPS for fluid selected for use in the passure test. The informa-01 01-80 Section lit, Cass 2 and 3 Construc- tion provided should demonstrate that the fluid selected

' tion will not have deleterious effects on the material of the 33 03 03 75 Organizations Accepting Overall pressure boundary and that the fluid may be safely used 1681 1 at the specified temperature and pressure of the test.

(N-84) 03 01-79 Responsibility for Section HI Con-When the fluid selected for use is the operating fluid,

  • struction 03 01 76 Bolt Holes for SectionIll,Cass 1, additionalinformation is not required.

16831 07 01 76 2,3 and MC Component Supports 1729 11-03 75 Mmimum Edge Distance Bolting 1685 04-28-75 Furnace Brazing Secticm HI, Oass I, (N 111) 03 01 79 for Section IH, Division 1, Cass 1, 01-01 78 2,3 and MC Construction 2, and 3 and MC Construction of 1686 03 03 75 Furnace Brazing, Section HI, Sub-Component Supports 01 01 78 section NF, Component Supports 09 10-76 Alternate PWHT Time and Temper- 1732 11 03-75 Hardsurfaced Valves with inlet 16891 01 01 79 Connections less than 2-in. Nominal 01 01-78 ature for SA 182 Grade F22,SA-387 (N-114)

Grade 22, Cass 2,and SA-335 Grade Pipe Size for Section IH, Division 1, P-22 Section B1, Casa 1,2,3 and CS Cass I and 2 Construction

( 1733 11 03 75 Evaluation of Safe Shut Down Earth-N Code Case 1689-1 was acceptable subject to the follow- (N-115) 01 01 78 quake Loadings for Section HI, Division 1, dass MC Containment in; condition in addition to that specified in the Code Vessels Cese: The alternate postweld heat treatment should be 1734 II 03-75 Weld Design for Use for Section IH, prequalified along with the applicable welding procedure 01 01 78 Division 1, Cass 1,2,3 and MC Con-in accordance with ASME Section IX. (N 116) struction of Component Supports 1692 04-28-75 Rules for Design of Welded Cass 1 Cod 2 Case 1734 was acceptable subject to the follow-(N-90) 07-01 78 Pumps 11 03 75 Brazing, Section Ill, Division 1, ing conditons in addition to those conditions specified 1695 1 in the Code Case: If the configuration of Figure 1 of 01 01 78 Cass 3 the Code Case la used for Cass I and MC component 17021 07 11 77 Flanged Valves Larger than 24 supports, full penetration welds should be used. The (N 961) 01 01 80 inches for Section HI, Division 1, Cass 1, 2 and 3 Construction application of the configuration shown in Figures 2 06-30 75 Brazing of Cnpper Alloys SectionIll, and 3 should be restricted to the welding of cans for 1703 spring encapsulation in spring hangers: In Figure 3, 01 01 78 Cass2 the length of the leg of the fillet weld adjacent to the 1706 06-30 75 Dsta Report Forms for Component 12-31 75 Supports, Section HI, Cass 1, 2 plate should be equal to the thickness of the exposed end of the plate; also, the leg of the fillet weld adjacent and 3 08-11 75 Nameplates and Stamping for See- to the shell should be equal to the thickness of the 1712 03 01 79 tion HI, Division 1 Oass 1,2,3 exposed end of the shell.

(N-101) and MC Construction as Referenced 1744 03 01 76 Carbon Steel Pipe Flanges Larger in NA-8300 03-01 79 than 24in.Section III, Division 1, 1718 11 08-11 75 Design of StructuralConnectionsfor (N-121)

  • 07 01 76 Linear Type Component Supports, Cass 2 and 3 Construction 1765 04-26-76 Machining After Hydrostatic Testing Section 10, Division 1,Oass 1,2 and 07 01 77 Cass 2 and 3 Construction, Section 3 and MC IH, Division 1

( 1768 06 29-76 Permanent Attachments toContain-

%- 01 01 78 ment Vessels-Cass MC, Section HI, re d Nd."s'ecO *[o7C@ssIYs NorrYe,*" Division 1 March 31,191s. the Code Case was not included in this guide.

l 1.84-7

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a .

17691 02 16-77 Qualification of NDE I.svolIII Per ' N-193 11 21 77 Use of SB41 and SB 62 Bronze foe 10 01 77 sonnel,Section III, Division 1 11 21 80 Section Ill, Division I , Cass 3 Flangs '

1774 1 07 11 77 Minimum Wall Thickness for Gass 2 and Socket Weld End Valves , .

(N 1421) 010140 and 3 Valves,Section III, Division 1 N-199 03-20-78 Intervening ElementsSection III, J~

1775 08-13 76 Data Report Forms for Core Sup- 010141 Division 1, Casses 1, 2,3 and MC 08-13 79 port Structures, Oass G, Section Ill, Component Construction Division 1 1783 1 01 s+77 Qualification of Nondestructive Code Case N-199 was acceptable subject to the following 01 01-79 Examination Personnel, Section IH, condition in addition to those conditions specified in the Division 1 Code Case: The applicant should provide informationin the referencing Safety Analysis Report that demonstrates Code Case 17831 was acceptable subject to the follow- that all intervening elements have been designed in com-

. ing condition in addition to those conditions specified pliance with the requirements of the respective design in the Code Case: The first sentence of paragraph (1) apecification, should be replaced with the following: "The certifica-tion of the Level III nondestructive examination per- 1693 03 20-78 Welding Procedurc Qualification of  :

sonnel for the purpose of this Section of the Code (N-212) 01-01-81 Dissimilar Metal Welds When "But-shall be the responsibility of the employerof the LevelIII tering" with Alloy Weld Metal and individual. If the employer is not a Certificate Holder, Heat Treatment May Be involved, then the verification of such certificate is the responsibil- Section III, Division I, and Section 1X 11 20-78 Temporary Attachment of Thermo-ity of the Certificate Holder." N-226 )

l 01 01-80 couples, Section ill, Division 1, 4 1791 01 14-77 Projection Resistance Welding of Oass 1,2 and 3 Component Con-l (N-154) 011440 Valve Seats,Section III, Division 1, struction .

Cass 1,2 and 3 Valves N-279 05 15-80 Use of Torquing as a Locking Device ,

1796 01 14 77 Body Neck Thickness Determina- 07-13-81 for Section III, Division 1 Cass I,  !

(N-159) 07 01 78 tion for Valves with Inist Connec- 2,3, and MC Component Supports l tions 4-Inch Nominal Pipe Size and Smaller, Section IH, Division 1 Code Case N-279 was acceptable subject to the following Cass 1,2, and 3 condition in addition to those conditions specified in the i

  1. 1 1808 02 16 77 F Number Oassification of Low Code Case: When torquing or other preloadingis used as 01 01 78 Alloy and Carbon Steel Bare Rod a locking device and the joint is later unloaded or disas-  ;

Electrodes Sections I,11. IH, IV, V, sembled, the bolting should be replaced unless it can be j VIII, and IX demonstrated or proved to the authorized nuclearinspec- ,

1812- 03 23 77 Size of Fillet Welds for SocketWeld- tor that the original bolting has not been permanently l (N-174) 01 07-80 ing of Piping, Section HI, Division I strained. j 010141 1818 03 23-77 Welded Joints in Component Stand- N-280 05-15-80 Alternate Rules for Examinat!on of 07 01 79 ard Supports, Section IH, Division 1 070141 Welds in Section III, Cass 3 Storage (N 175)

Tanks 1

< Code Case 1818 was acceptable subject to the following N 281 05 15-80 WeldingOperator Performance Qual- l condition in addition to those conditions specified in the 07-01 81 ification, Section Ill, Division 1 l Code Case: Dat portion of the unwelded housing thatis i I

limited to 90' maximum should include a muumum of two sectors that are uniform in length. 3. Code Cases that were endorsed by the NRCin a prior i

version of titis guide and were superseded by revised Code N-179 07-11-77 Openings in Valves for Section III, Cases on or after July 1,1974, should be considered as not 07 11-80 Division 1, Cass 1, 2 and 3 Con- endorsed as of the date of the Council action that approved struction the revised version of the Code Cases. These Code Cases N-182 07 11 77 Alternate Rules for Procedure Qual- that are no longer endorsed are listed in the following by I 070141 ification Base Material Orientation, number, effective dates,8" and title. i Section III, Division 1 Cass 2 and l 3 Construction 15081s 12 13-71 Allowable Stresses, Design Intensity I N-184 07-11-77 Roll Dreading of SA453 Bolting 06 30-75 and/or Yield Strength Values, Sec- '

07 01 79 for Section III, Division 1 Oass 1, tion I, III, and VIII, Divisions 1 and 2 2,3 or CS Construction 7

i N-189 08-29 77 Primary Membrane Plus Primary 34 Earlier 07 01 79 Bending Stress Intensity I.imits i.ner date d.date-date se revisionCode Case c.se et code was was approved by ASME approved Counc5:

br ASME l C*"a*8-for Other Than Solid Rectangular q Sections for Section Ill, Division 1. Is code code case case and isises is no Ion s <

therefore 4.5.rned ilsted bythe trom ASME as ine accepi a.Section missing.III

- 1 Oass MC Construction 1.84 4

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1516 1 06 25 73 Welding of Seats in Valves for Sec- be pequalified along with the applicable welding pro- l 08 11 75 tion IU Applications cedure in accordance with ASME Sec'.lon IX-1539 11 06 72 Metal Bellows and Metal Diaphragm

)  %. (N-30-1) 11-21-77 Stem Scaled Valves, Section HI, 1695 04-28-75 Brazing, Section 111, cass 3 Casses I,2, and 3 11 03-75 1540-1 03 03-73 Elastomer Diaphragm Valves, Sec- 1701 06-30-75 Determination of Capacities of 01 14-77 tion lu, Oasses 2 and 3 03-20-78 Vacuum Relief Valves Section Ill, 1541 1 08-13 73 Hydrostatic Testing of Embedded Cass MC 09-30-76 Cass 2 and Cass 3 Piping for Sec- 1701 1 03 20-78 Determination of - Capacities of '

tion IU Construction (N-951) 03 19-79 ' Vacuum 3 Relief Valves, Section 1H, 1541 2 09 30-76 Hydrostatic Testing of Embedded 07 09-79 Division I and 2 Cass MC 05 15 78 Dass 2 and Cass 3 Piping for Sec- 1702 06-30 75 Flanged Valves larger than 24 tion HI, Division 1 Construction 07 11 77 inches for Section III, Oass 1, 2 1552 12 18 72 Design by Analysis of Section HI, and 3 Construction 08-29-77 Cass ! Valves 1720 08-11-75 Weld End Preparation for Section II, l

1553 12 18-72 Upset Heading and Roll Threading 03 01 76 Division 1 Construction 03 03 75 of SA453 for Bolting, Section HI 1555 12 18-72 Certification of Safety Relief Valves Code Case 1720 was acceptable subject to the follow-01 14 77 on Liquids ing condition in addition to those conditions speciGed 1606 11 05-73 Stress Oiteria for Section HI,Oass in the Code Case: Wald end preparations other than 12 16 74 2 and 3 Piping Subjected to Upest, those shown in Figures 1,2, and 3 of the Code One are Emergency, and Faulted Operating not acceptable on a generic basis. Such alternative sad Conditions preparations should be treated on a case by case basis.

Code Case 1606 was acceptable subject to the inter- 17201 03 01 76 Weld End Preparation for Section EI, pretation that the stress limit designations of " Upset." 11 20-78 Division 1 Construction

!

  • Emergency,* and " Faulted" do not necessarilyimply agree-ment with specified plant conditions applicaWe to ASME Code Qae 17201 was acceptable subject to the fellow-l . Code Cass 2 and 3 components for fluid systems.These ing condition in addition to those conditions specified in

, ( designations should be established and justified in the the Code Ose: The acceptance of weld end preparations

, N . design speciGcations. other than those shown in Figures I,2, and 3 of the i

k 1607 11 05-73 Stress Criteria for Section HI, Oas-Code Case should be evaluated on a case-by case basis.

l 11 04 74 ses 2 and 3 Vessels Subjected to 1739 2 08-28-78 Pump Internal items, Section HI, Upset, Emergency, and Faulted (N 119-2) 08-25-80 Division I, Oass 1,2, and 3

, Operating Conditions 1739-3 08-25-80 Pump Internal items, Section IH, l (N-119-3) Il 17 80 Division 1, Cass 1,2, and 3 Code Case 1607 was acceptable subject to the inter- 1761 04 26-76 Use of $8-148 Alloy CA954 for Sec-( pretation that the stress limit designations of " Upset,* 01 14-77 tion HI, Division I, Oass 2 or 3

" Emergency," and " Faulted" do not necessarily imply Flanged End Valves agreement with specified plant conditions applicable to 1769 08 13 76 Qualification of NDE levelIII Per-ASME Code Cass 2 and 3 components for fluid systems- 02 16 77 sonnel,Section III, Division 1 These designstions should be established andjusti6 edin 1774 08-13-76 Minimum Wall Thickness for Gass 2 the design specifications. 07 11 77 and 3 Valves,Section III, Division 1 1780 09 10-76 Hydrostatic Testing and Stamping 1630 11 04-74 External Pressure Garts for High 03 10-78 of Pumps for Oass I Construction, I (N 77) 07 10-78 Yield Stength Carbon Seels and Iow Section HI, Division 1 Alloy Steels. (Yield strength above i 38 Ksi to 60 Ksi inclusive).For sec- Code Case 1780 was acceptable subject to the follow-tion IH, Cass 1,2,3,and MC; and ing conditions In addition to those conditions specified Section VHI, Division I and 2 in the Code Case: Each licensing application in which 1683 03 03 75 Bolt Holes for Section HI, Division the Code Case is to be used should present informa-03 01 76 1, Cass 1,2,3 and MC Component tion that satisfactorily demonstrates that the subassam-Supports Wy tests adequately simulate the pressure loadings.

1689 06-30-75 Alternate PWHT Time and Temper- Also, the closure fixture for the test subassembly should 09-10-76 sture for SA-182 Grade F22 Section adequately simulate the rigidity of adjacent subassemblies HI, Oass I,2,3 and CS and also simulate the interface loadings from adjacent subassemblies that would result from a hydrostatic

' (-

Code Case 1689 was acceptable subject to the follow-k ing condition la addition to that specified in the Code Ose: The alternate postweld heat treatment should as This code Case had been reaffirmed by the ASME Counau prier to sia annusment.

_ - _ - . - - --- l S4'9-- __ _ . _ _ - - _

pressure test of a complete pump assemWy. Asa mirumum, 4. Code Cases for dass I components that are not on ,

the closure fixture should impose loads that result in the approved list of this guide (paragraph C.1) or other .

regulatory guides, or for which authorization by the Com-stresses equal to or greater than those induced during the hydrostatic test of a complete pump assembly. It is not mission has not been granted, are not acceptaWe for Cass 1 -

, D' /

intended that piping reaction loadings be simulated in components.

the hydrestatic testing.

5. Code Cases for other classes of components that are 1783 09 10-76 Qualification of Nondestructive Fer- not on the approved list of this guide (paragraph C.1) or 01 14-77 sonnel,Section III, Division 1 other regulatory guides should be considered not acceptable on a generic basis.

Code Case 1783 was acceptable subject to the follow-ing condition in addition to those conditions specified D. IMPLEMENTATION in the Code Case: The first sentence of paragraph (1) should be replaced with the following: "'Ihe certifica- The purpose of this section is to provide information to tion of the Invel III nondestructive examination person- applicants regarding the use of this regulatory guide, nel for the purposes of this Section of.the Code shall be .

the responsibility of the employer of the Level 111 1. Except for those Code Cases that have been annulled by

, individual. If the employer is not a Certificate Holder, actionof the ASMECouncil,theNRCstaff hasfoundtheOHis then the verification of such certificate is the responsibil- Cases listed in this regulatory guide under regulatory poei-ity of the Certificate Holder." tion C.1 acceptable for appropriate use. Other Code Cases may be considered for use in accordance with footnote 6 of 01 09-78 Use of Flexible Hose for Section III, the Codes and Standards rule, { 50.55a of 10 CFR Part 50.

N-192 08-30 79 Division 1, Cass I, 2, and 3 Con-

  • struction
2. Components ordered to a specific version of a Code Code Case N-192 was acceptable subject to the following Case need not be changed because a subsequent revision to conditions in addition to those conditions specified in the Code Case is listed as the approved version in this guide.

the Code Case. The applicant should indicate system application, design and operating pressure,and pressure-temperature rating of the !!cxible hose. Data to demon- 3. Components ordered to a Code Case that was previ- ,

strate compliance of the flexible hose with NC/ND 3649, ously approved for use need not be changed because the i particularly NC/ND 3649.4(e), are required to be furnished Code Case has been subsequently annulled. l with the application.

4. Code Cases on the approved list may be applied to N-196 01 09-78 Exemption from the Shakedown components that were in process of construction prior to 01 08-79 Requirements When Plastic Anal- the effective date of the Code Case within the limits speci-ysis is Performed for Section III, fled in the Code Case and applicable regulations or com-Division 1, Cass 1 Construction mended in other regulatory guides.

. D 1.84-10

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4

-%~

= APPENDIX ,

sv NUMERICAL LISTING OF CODE CASES

  • 1540-2 (N-31) N 1921 N-262 N-324 N-1961 N 263 1588 (N46) N-214 N-271 16091 (N-55) N-215 N-272 1620 (N41) N-2171 N-275 16212 (N42-2) N-220 n-276 1630-1 (N46-1) N-228 N-282 l1700 (N-94) N-229 N-284 17012 (N-95-2) N 233 N-292 l

!711 (N 100) N-237 N-300 1720-2 (N 106) N-238 N-302 17394 (N 1194) N 240 N-309 1745 (N-122) N-241 N-313 1761 1 (N-133) N-243 N-314 17801 (N-146-1) N-247 N 318 N-252 N-319 l1791 (N 154) N-260 N-320 1792-2 (N 155-2)

N 261 l1797 (N 160)

' Code Case ISTS is a Section VIII Case and therefore has been eliminated from this regula-I tory guise,which covers Section Ill Cases.

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