ML20132D117

Reg Guide 1.84,Rev 23, Design & Fabrication Code Case Acceptability,Asme Section Iii,Div 1

ML20132D117
Person / Time
Issue date:	09/30/1985
From:	NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
References
REGGD-01.084, REGGD-1.084, NUDOCS 8509300062
Download: ML20132D117 (14)

Text

s Revision 23

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o U.S. NUCLEAR REGULATORY COMMISSION september 1985 o @\\...'.f

/ i REGULATORY GU DE V

OFFICE OF NUCLEAR REGULATORY RESEARCH

+

REGULATORY GUIDE 1.84 DESIGN AND FABRICATION CODE CASE ACCEPTABILITY ASME SECTION lli DIVISION 1 A. INTRODUCTION Part 50 requires, in part, that measures be established for the control of special processing of materials and that

,Section 50.55a, " Codes and Standards," of 10 CFR proper testing be performed.

Pa:t 50, " Domestic Licensing of Production and Utilization Facilities," requires,in part, that components of the reactor This regulatory guide hsts those Section 111 ASME Code coolant pressure boundary be de. signed, fabricated, erected, Cases oriented to design and fabrication that are generally and tested in accordance with the requirements for Class 1 acceptable to the NRC staff for implementation in the components of Section lit, " Nuclear Power Plant Compo.

licensing oflight-water-cooled nuclear power plants.

nents," 3 of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code or equivalent Any information collection activities mentioned in this quality standards. Footr.ote 6 to 50.55a states that the regulatory guide are contained as requirements in 10 GR use of specific Code Cases may be authorized by the Part 50, which provides the regulatory basis for this guide.

Commission upon request pursuant to 50.55 a(a)(2)(ii),

The information collection requirements in 10 CFR Part 50 which requires that proposed alternatnes to the described have been cleared under OMB Clearance No. 3150 0011.

requirements or portions thereof provide an acceptable level of quahty and safety.

B. DISCUSSION General Design Criterion 1, " Quality Standards and The ASME Boilerand PressureVesselCanmittee publishes a

[m i

Records," of Appendix A, " General Design Criteria for document entitled " Code Cases."' Generally, the individual

(/ Nuclear Power Plants," to 10 CFR Part 50 requires,in part, Code Cases that make up this document explain theintent of that structures, systems, and components important to Code rules or provide for alternative requirements under safety be designed, fabricated, erected, and tested to qual-special circumstances.

ity standards commensurate with the importance of the safett m etion to be performed.Where generally recognized Most Code Cases are eventually superseded by revision to f

code. u andards are used, Cnterion I requires that they the Code an! then are annulled by action of the ASME Council.

be identifico.nd evaluated to determine their applicability, in such cases, the intent of the annulla! Code Case bemmes part adequacy, and sufficiency and be supplemented or modified of the revised Code, and therefore continued use of the Code as necessary to ensure a quality product in keeping with the Case intent is sanctioned under the rules of the Code. In other required safety function.

cases, the Code Case is annulled because it is no longer accept-able or there is no further requirement forit. ACode Case that Criterion 30," Quality of ReactorCoolant Pressure Bound-was approved for a particular situation and not for a generic ary," of the aame appendix requires, in part, that compo-applicatim shuld be used mly fcr mnstruction of the approved nents that are part of the reactor coolant pressure boundary situation because annulment of such a Code Case muld result in be designed, fabricated, erected, and tested to the highest construction that would not nret Cate requirements, quality standards practical.

The Code Cases listed in this guide are limited to those Appendix B, " Quality Assurance Criteria for Nuclear cases applicable to Section 111 that are oriented toward Power Plants and Fuel Reprocessing Plants," to 10 CFR design and fabrication.

8 copies may be obtained from the American Society of All published Code Cases in the area of design and Mechanical Engineers, United Engineering Center, 34s East 47th Street. New York. New York 10017.

fabrication that are applicable to Section 111 of the Code 8509300062 850930 PDR REGGD 01.084 R PDR Comments should be sent to the Secretary of the Commission, U.S.

Nuclear Regulatory Commission, Washington, DC 20555, Regulatory Guides are isse9d to describe and make available to the Attention Docketing and Service Branch.

pu blic methods acceptaDie to the NRC staff of implementing specific parts of the Commission's regulations, to delineate tech-The guides are issued in the following ten broad divisions:

/n niques used by the staff in evaluating specific problems or postu-lated accidents, or to provide guKance to applicants. Regulatory

,1. Power Reactors

6. Products s

/

k

) Guides are not substitutes for regulations, and compilance with

2. Research and Test Reactors

7. Transportation g

them is not required. Methods and solutions different from those set

3. Fuels and Materials Facilities

8. Occupational Health

\\

/

out in the guides will be acceptabse lf they provide a basis for the

4. Environmental and Siting

9. Antitrust and Financtal Review findings requisite to the issuance or continuance of a permit or

5. Materials and Plant Protection 10. General license by the Commission.

Copies of issued guides may be purchased at the current Government Printing Off 6ce pr6ce. A subscription serv 6ce for future guides in spe-This guide was issued after consideration of comments received from cific divisions is available through the Government P6tnting Office.

the public. Comments and suggestions for improvements in these information on the subscription service and current GPO prices may i

I guides are encouraged at all times, and guides will be revised, as be obtained by writing the Superintendent of Documents, U.S.

appropriate, to accommodate comments and to reflect new informa-Government Printing Office, Post Of fice Box 37062, Washington, tion or experience.

DC 20013 7082.

O land were in effect on April 5,1984, were reviewed for (1) Code Cases applicable to pipmg design:

inclusion in this guide. In addition to the listing of acceptable Code Cases, this revision of the guide includes 1745 03-01-76 Stress Indices for Structural Attach-listings of (1) Code Cases that were identified as accept-(N-122) 01-08-79 nrnts, Classl, Swtion III, Division I able in a pnor version of this regulatory guide and that 01-21-82 were annulled after the original issuance of tlus guide 1797 03-23-77 Finned Tubing for Construction, (June 1974) and (2) Code Cases that were identified as (N-160) 03-17-80 Section !!!, Division I acceptable in a prior version of this regulatory guide 09-07-82 and that were superseded by revised Code Cases after the original issuance of this guide (June 1974). Code (2) Code Cases applicable to valve design:

Cases that are not listed herein are either not endorsed or wiu require supplementary provisions on an individual N 133-1 04-02-82 Use of SB-148 Alloys 952 and 954 basis to attain endorsement status.

Section !!I, Division 1, Class 3 N-282 05-15-80 Nameplates for Valves, SectionIII, The endorsement of a Code Case by this guide 05-25 83 Division I, Class 1,2, and 3 Con-constitutes acceptance of its technical position for struction applications not precluded by regulatory or other require-N-313 05-11-81 Alternate Rules for llatf-Coupling ments or by the recommendations in this or other i1 28-83 Branch Connections,Section III,l regulatory guid es. Contingent endorsement is indicated Division I in regulatory position C.I.c for specific cases. Ilowever, N-394 02-20-84 Restricting Lift to Achieve Reduced it is the responsibihty of the user to make certain that Relieving Capacities of Full Lift, no regulatory requirements are violated and that there Nonle Type, and Flat Seated are no conflicts with other recommended linutations Safety and Safety Relief Valves resulting from Code Case usage.

for Compressible Fluid Applica-tions, Section 111, Division 1,

Acceptance or endorsement by the NRC staff applies Classes 2 and 3 i

only to those Code Cases or Code Case revtsions with f

the date of "Counct! Approval" as shown in the regu-(3) Other Code Cases related to design:

I latory position of this guide. Earber or later restsions of 4

a Code Case are not endorsed by this guide. New Code 1630-1 12-11-81 External Pressure Charts for fligh Cases will require evaluation by the NRC staff to (N-66-1)

Yield Strength Carbon Steels and determine if they quahfy for inclusion in the approved Low Alloy Steels. (Yield Strength list. Because of the continuing change in the status of above 38 Kr.i to 60 Ksi Inclusive.)

Code Cases, it is planned that this guide will require Section 111, Division 1, Class 1, 2, periodic updating to accommodate new Code Cases and 3, and MC 5

any aevisions cf existing Code Cases.

1739-4 02-20-84 Pump Internal items, Section 111, l (N-119-4)

Division 1, Class 1, 2, and 3 C.

REGULATORY POSITION N-196-1 01-08-79 Exemption from the Shakedown 01 21-82 Requirements When Plastic Analy-2

1. The Section !!I ASME Code Cases listed below sis is Performed for Sectionlli Divi-(by number, date of Council approval, and title) are sion1, Class I and CS Construction acceptable to the NRC staff for application m the con-N-2 20 08-28-78 Code Effective Date for Component struction of components for hght-water-cooled nuclear 07-13-81 Supports,Section III, Division 1 power plants. Their use is acceptable within the limitations N-243 08-30-79 130undaries Within Castings Used for stated in the " Inquiry" and " Reply" sections of each 07-16-82 Core Support Structures,Section III, individual Code Case, wit hin the limitations of such Division 1, Class CS NRC or other requirements as may exist, and within the N-247 07-09-79 Certified Design Report Summary for additional limitatians recommended by the NRC staff 01-21-82 Canpunent Standard Supports, Sec-t given with the individual Code Case in the listing. The tion Ill, Division 1, Class ' 1, 2, 3 categorization of Code Cases used in this guide is and MC intended to facilitate the Code Case listing and is not N-309 05-11-81 Identification of Materials for Com-i intended to indicate a limitation on its usage.

ponent Supports, Section 111, Divi-l sion I

a. Design-oriented Code Cases (Code Case nu mber, date of Council approval,3 and title):

"The Code Case was annulled on July 10,1981 ( ASME manda-tory annulment date). It was reinstated on December 11, 1981.

Ikcause of the circumstances and because there were no changes

. Lines indicate substantive changes from Revision 22.

In the Code Case, the NRC considers thtt this Case was in effect during the period of 7-10-81 through 12 11 81, 2A numerical listing r4 the Code Cases appears in the appendix.

5 The Code Case was annulled on December 1,1983 (ASME 3When more than one date is given, the earlier date is that mandatory annulment date). It was reinstated on I-ebruary 20, on which the Code Case was approved by the ASME Council 1984.

Because of the circumstances and because there were no and the later date(s) is that on which the Code Case was changes in the Code Case, the NRC considers that this Case was reaffirmed by the ASME Council.

in effect during the period of 12-183 through 2 20-84.

1.84-2

N-319 07 13-81 Alternate Procedure for Evaluation tion III, Division 1, Class 2 and 3 of Stresses in Butt Weld Elbows in Construction Class 1 Piping, Section 111, Divi-sion 1 N-315 02-14-83 Repair of Bellows, Section lit, N-341 06-17-82 Certification of Level til NDE Division 1 Examiner,Section III, Division I and 2 N-397 02-20-84 Alternative Rules to the Spectral Code Case N-315 is acceptable subject to the follow-Broadening Procedures of N-1226.3 ing conditions in addition to those conditions speci-for Classes 1, 2, and 3 Piping fied in the Code Case: Prior to implementation of Section 111, Division 1 the Code Case, the applicant should present a descrip-tion of the repair and a justification why the bellows Code Case N-397 is acceptable subject to the follow-should be repaired rather than replaced. Following ing condition in addition to those conditions speci-receipt of approval for the repair, but prior to making fled in the Code Case. The Code Case is acceptable the repair, the applicant should present the results of for specific plant applications on a case-by-case basis the qualification on the full-scale facsimile bellows, pending revision of Regulatory Guide 1.122 "Devel-including the design requirements, to ensure that the opment of Floor Design Response Spectra for Seismic repair meets the requirements of the design specifica-Design of Floor-Supported Equipment or Components."

tion,

b. Fabrication-oriented Code Cases:

N-316 12-11-81 Alternate Rules for Fillet Weld

. Dimensions for Socket Welded (1) Code Cases related to welding and brazing:

Fittings, Section !!!, Division I, Class 1, 2, and 3 N-55-1 04-05-84 Inertia and Continuous Drive Frio-N-328 12-11-81 Thermit Brazing or Welding of tion Welding,Section III, Divi-Nonstructural Attachments, Sec-sion I tion 111, Division 1 1791 03-17-80' Projection Resistance Welding of N-345-1 12-13-82 Attachment of AMS 5382 Alloy 31 (N-154) 09-09-82 Valve Seats, Section 111, Division 1, Seat Rings by Friction Welding, Class 1, 2 and 3 ValvesSection III, Division 1, Classes 1, N-217-1 01-07-80 Postweld IIcat Treatment of Weld 2, and 3 09-07-82 Deposit Cladding on Classes 1,2,3, N-346 06-17-82 Explosive Welding,Section III, MC, and CS Items,Section III, Divi-Division i sion 1 N-347 12-1382 Continuous Electric Resistance Seam N-229 01-08-79 Alternate Rules for Fabrication Welding of P-No. 8 Materials for 01-21-82 Welding SB-148 Alloy CDA 954 for Component Supports,Section III, Section III, Division 1, Class 3 Division 1

~

Construction N-357 12-13-82 Certification of Materia 1 for Compo-l N-233 01-08-79 Alternate Rules for PWIIT of P-No.

nent Supports,Section III, Divi-01-21-82 6, Group 4 Material for SectionIII, sion 1, Subsection NF Division I, Class 1,2, or 3 Construc-N-359 12-13-82 Weld Connection for Coaxial tion Cylinders,Section III, Division 1, N-260 01-07-80 Weld Repair of SA-182 Type 316 Class 1 05-25-83 Forgings,Section III, Division 1, N-377 04-04-83 Effective Throat Thickness of Par-Classes I, 2, 3, and MC tial Penetration Groove Welds, N-262 01-07-80 Electric Resistance Spot Welding Section 111, Division 1, Classes 1, 09-07-82 for Structural Use in Component 2, and 3 Supports,Section III, Division 1 N-383 10-05-83 Weld Repair of SA-182 Austenitic

/.

N-271 03-17-80 Simplified Method for Analyzing Forgings,Section III, Division 1,

/

Flat Face Flanges with Metal to Classes I, 2, and 3 Metal Contact Outside the Bolt i

Circle for Section III, Class 2,3, and MC Construction Code Case N-383 is acceptable subject to the following N-276 03-17-80 Welding of SA-358 Pipe, Section 111, condition in addition to those conditions specified 02-14-83 Division 1 in the Code Case: ' Applicants who apply the provi-N-304 06-11-81 Use of 20Cr-25Ni-6Mo (Alloy UNS sions of this Case to permit material manufacturers l

04-05-84 NO8366) Welded Tubes for Sec-to weld repair austenitic forgings without re-solution heat treatment should provide justification to the "f"

6ne code onse was annulled on January 14,1980 (ASME manda-tory annutment date). It was reinstated on March 17, 1980. Because is acceptable for their applications, meludm.g their evaluation of the susceptibility for stress corrosion

$de c'U"Uhe C7se wa ief t uri a

C si e that the period of 1 14-80 through 3-17-80.

Cracking.

1.84-3

N-391 11-28-83 Procedure for Evaluation of the Report that the service life of the elastomer diaphragm Design of Iloilow Circular Cross should not exceed the manufacturer's recommended Section Welded Attachments on service life. This recommended service Ufe should not Class 1 Piping, Section 111, Divi-exceed 1/3 of the minimum cycle Ufe as established sion I by the requirements of paragraph 3 of the Code Case. In N-392 11-28-83 Procedure for Evaluation of the addition, the service life of the elastomer diaphragm Design of llollow Circular Cross should not exceed 5 years, and the combined service Section Welded Attachments on and storage hfe of the clastomer diaphragm should Classes 2 and 3 Piping,Section III, not exceed 10 years.

Division 1 N-393 11-28-83 Repair Welding Structural Steel Rolled Shapes and Plates for Com-N-3 2-4 03-06-81 flydrostatic Testing of Embedded ponent Supports, Section Ill, Class 2 and 3 Piping for Section III, i

Division 1 Division 1 Construction (2) Other Code Cases related to fabrication:

Code Case N-32-4 is acceptable subject to the follow-ing conditions in addition to those conditions speci-N-215 05-15-78 Integrally Finned Titanium Tubes, fied in the Code Case:

SectionIII, Division 1, Class 3 Con-struction The acceptance is based on the following clarification i

N-237-2 05-25-83 Ilydrostatic Testing of Internal and interpretation. Code Case N-324 does not replace Piping,Section III, Division 1,

paragraph NC/ND 6129, "Provis ons for Embedded or Classes 2 and 3 Inaccessible Welded Joints in P. ping," of the Code.

N-240 03-19 79 Ilydrostatic Testing of Open Ended The intent of the Code Case is to (1) provide addi-01-21-82 Piping,Section III, Division I tional testing above Code require ment and (2) permit N-241 07-09-79 Ilydrostatic Testing of Piping Sec-liquid penetrant or magnetic par icle testing in place 01-21-82 tion Ill, Division 1 of radiographic testing for Class 3 piping with 3/8" N-339 06-17-82 Examination of Ends of Fillet nominal wall thickness or less.

Welds,Section III, Division 1,

Classes 1, 2, and MC Paragraph (1) contains an additional requirement to N-349 07-16-82 Pressure Testing Piping Systems, the Code. It is, therefore, acceptable but unnecessary Section 111, Division I, Classes 2 to include in the Code Case. Paragraph (2) is a and 3 variation in the volumetric examination technique and N-362-1 05-25-83 Pressure Testing of Containment is acceptable as written. Paragraph (3) contains an items,Section III, Division 1,

additional requirement and is not a relaxation of the Classes I, 2, and MC Code. It is, therefore, acceptable but unnecessary to N 368 07-06-83 Pressure Testing of Pump Discharge, include in the Code Case.

Section III, Division 1, Classes 2 and 3 1621-2 05-25-77 Internal and External Valve items, Code Case N-368 is acceptable subject to the follow-(N-62-2) 05-15-80 Section Ill, Division 1, Class I, 2 ing condition in addition to those conditions speci-05-25-83 and 3 Line Valves fied in the Code Case: Applicants esing this Code Case should provide information to demonstrate that the length of discharge piping is reasonably short.

Code Case 1621-2 (N62-2) is acceptable subject to the following condition in addition to those conditions N-369 02-14-83 Resistance Welding of Bellows, specified in the Code Case: The Code requires that Section 111, Division 1 Class I and Class 2 valve manufapturers meet the N-376 05-25-83 Pressure Testing of Embedded provisions of NCA 4000, " Quality Assurance," and, Class 2 and 3 Piping, Section Ill, in addition, Class 3 valve manufacturers should also Division 1 meet the provisions of NCA 4000,

c. Code Cases with contingent approval:

l 1720-2 11-20-78 Weld End Preparatim for Section III, 1540-2 01-14 77 Elastomer Diaphragm Valves, Sec-(N-106-2) 08-28-81 Division 1 Construction (N-31) 01-07-80 tion 111, Class 2 and 3 02-14-83 Code Case 1720-2 (N-106-2) is acceptable subject to the following condition in addition to those conditions Code Case 1540-2 (N-31) is acceptable subject to the specified in the Code Case: The acceptance of weld following canditions in aldition to tlose (xniitions speci-end preparations other than those shown in Figures fled in the Code Case: Each applicant who applies the Code 1, 2, and 3 of the Code Case should be evaluated on Case should indicate in the referencing Safety Analysis a case-by-case basis.

1.84-4

(

1792-2 01-08-79 Fiberglass Reinforced Thermosetting tion Attachments on Qass 2 or 3 (N-155-2) 01-21-82 Resin Pipe, Section 111, Division 1 Piping, Section 111, Division i N-350 12-07-82 lbstweld lieat Treatment-Thickness

/

Code Case 1792-2 (N-155-2) is acceptable subject to of Material,Section III, Divi-I the following condition in addition to those conditions sion I specified in the Code Case: The applicant should comply with the additional requirements that are speci-Code Case N-350 is acceptable subject to the follow-fied in Regulatory Guide l.72," Spray Pond Piping Made ing condition in addition to those conditions speci-from Fiberglass-Reinforced Thermosetting Resin."

fled in the Code Case: Applicants wishing to use this Case for other than P-1 materials should demon-N-192-2 09-16-81 Use of Braided Flexible Connectors, strate that the use of this Case will not adversely Section III, Division I, Class 2 and 3 affect the required material properties.

i Code Case N-192-2 is acceptable subject to the following

2. Code Cases that were endorsed by the NRCin a prior conditions in addition to those conditions specified in version of this guide and were later annulled by action of the Code Case: The applicant should indicate system the ASME Council should be considered as deleted from the application, design and operating pressure, and pressure-list of acceptable Code Cases as of the date of the ASME temperature rating of the flexible hose. Data to demon-Council action that approved the annulment. Such Code strate compliance of the flexible hose with NC/ND-3649, Cases, which were annulled on or after July 1,1974, are partiaalarly NC/ND-3649.4(e), are required to be furnished listed below by number, effective dates,7 and title.s with the application.

1361-2 03-09-72 Socket Welds, Section 111 N-284 08-25-80 Metal Containment Shell Buckling 03-01-79 05-25-83 Design Methods, Section 111, Divi-sion 1 Class MC Code Case 13612 was acceptable when used in connection with Section 111, paragraph NB-3356, Fillet Welds.

Code Case N-284 is acceptable subject to th: follow-ing condition in addition to those conditions speci-1461-l' 03-09-72 Electron Beam Welding, Section 1, fled in the Code Case: Prior to implementation of 02-16-77 111, and VIII, Division 1 and 2 80 the Code Case, the applicant must demonstrate to 1470-2 12-18-72 External Pressure Charts for fligh-the satisfaction of the NRC staff (via Safety Analysis 11-04-74 Strength Carbon Steels and for N

Report) that any axisymmetric techniques that are low-Alloy Steels, Section Vill, Divi-proposed will be applicable to a vessel having large sion I and 2, and Section III asymmetric openings and that the overall margin used 1471-1 03-09-72 Vacuum Electron Beam Welding of to prevent shell buckling is acceptable.

01-01-78 Tube Sheet Joints, Section Ill 1477-1 03-09-72 Use of 1970 Addenda of ANSI N-292 01-05-81 Depositing Weld Metal Prior to 01-01-78 B31.7, Section 111 l

11-28-83 Preparing Ends for Welding, Sec-1494-1 03-03-73 Weld Procedure Qualification Test, tion III, Division 1, Class 1, 2, 01-01-78 Section til and 3 Construction 1506 12-13-71 Stress Intensification Factors, Sec-O l-01-78 tion Ill, Class 2 and 3 Piping Code Case N-292 is acceptable subject to the follow-1516-2 08-11-75 Welding of Seats or Minor Internal ing conditions in addition to those conditions speci-(N-24) 07-01-78 Permanent Attachments in Valves fled in the Code Case: Class 3 piping that is longi-for Section III Applications 38 tudinally welded and that has a weld efficiency factor of 1516-2 11-20-78 Welding of Seats or Minor Internal 1.0 as selected from Table ND-3613.4-1 should receive a 7 Earlier date-date Code Case was approved by 'ASME Council:

100 percent volumetric examination (RT or (R) of the later date-date Code Case was annulled. Where more than two

,'"ne[#$*N$hN'.da[h'N'*$*th d*

d' deposited weld metal in accordance with the require-ate o r firm ments of ND-5000, tion of the Code Case 8Code Cases 1355-3, !$34, and 1554, which were listed in N-314 05-11 81 Alternate Rules for Thread Engage-the original issue of this guide, were annulled by Council action P

1. "'Y ' ' *

• ment,. Section 111, Division 1 9Code Case 14611 is no longer listed as a Section Ill Code Case and is therefore deleted from the acceptable listing.

Code Case N-314 is acceptable subject to the follow-io ing conditions in addition to those conditions speci-CouncIap"pr"o"v[o"f NdeNase 1530. INwe*veY, 'becN 07a5 th n

no ed until pubHcation of fled in the Code Case. Applicants should identify in g'gight agu t, was

- their Safety Analysis Report: (1) the minimum length CounNo"n8N.f5 [dC"* * " N i [n $.'[-[s* bec N of thread engagement and (2) the procedure used to As m ann establish thread engagement.

of the publication of revisions to Section Ill in the Winter 1977 Addenda. However, the users did not believe that the Code Case a

was covered in the Code revision; therefore, ASEE reaffirmed the l N-318-1 02-20-84 Procedure for Evaluation of the Case on is.20-78. Because of these circumstances and because there were no changes in the Code Case, the NRC considers that this Design of Rectangular Cross Sec-Case was in effect during the period 7-178 through 11 20-18.

1.84-5

1 (N-24) 01-01-80 Permanent Attichments in Vdves NC/ND-3300 Excluding the NC-3200 for Section III Applications Alternate 12 1533 06-14-72 Pressure Temperature Ratings of 07-01-75 SA-351 Grades CF8A, CF3, and Code Case 1607-1 was acceptable subject to the inter-CF3M,Section III pretation that the stress limit designations of " Upset,"

1535-2 04-30-73 Ilydrostatic Testing of Section III,

" Emergency," and " Faulted" do not necessarily imply 03-21-77 Class ! Valves agreement with specified plant conditions applicable 1536 08-14-72 Closing Seam for ElectricalPenetra-to ASME Code Class 2 and 3 components for fluid 07-01-77 tions for Section Ill, Class 2,3, and systems. These designations should be established and MC justified L the design specifications.

1539-1 11-21-77 Metal Bellows and Metal Diaphragm (N-30-1) 01-01-81 Stem Sealed Valves,Section III, 1614 12-17-73'3 flydrostatic Testing of Piping Prior Division 1, Classes 1, 2, and. 3 01-01-79 To or Following the Installation of 1541-3 05-15-78 flydrostatic Testing of Embedded Spray Nozzles for Section Ill, (N-32-3) 07-01-79 Class 2 and Class 3 Piping for Sec-Classes I, 2, and 3 Piping Systems tion III, Division 1 Construction 1620 03-02-74 Stress Category for Partial Penetra-1552-1 08-29-77 Design by Analysis of Section III, (N-61) 01-08-79 tion Welded Penetrations, Section (N-35-1) 07-01-79 Class ! Valves 01-08-82 111, Class ! Construction 12 1553-1 03-03-75 Upset IIeading and Roll Threading 1623 03-02-74 Design by Analysis for Sectionlli, 01-01-76 of SA-453 for Bolting in Section 111 03-01-79 Class i Sleeve-Coupled and Other 1555-1 01 14-77 Certification of Safety Relief Valves, Patented Piping Joints 01-01-78 Section III, Division 1 1630-1 07-10-78 External Pressure Charts for IIigh 83 1569 03-03-75 Design of Piping for Pressure Relief (N-66-1) 07-10-81 Yield Strength Carbon Steels and 07-01-79 Valve Station,Section III Low Allo 3 Steels. (Yield Strength Code Case 1569 was acceptable subject to compliance above 38 Ksi to 60 Ksi inclusive.)

with the recommendations contained in Regulatory For Section Ill, Class 1, 2, 3, and Guide 1.67, " Installation of Overpressure Protection MC Devices."

1633 04-29-74 Brazing of Seats to Class 1,2, and 3 01-01-78 Vahe Body or Bonnets, Sectionlli 84 I

1573 04-30-73 Vacuum Relief Valves,Section III 1635-1 08-12-74 Stress Cnteria for Section III, Cass 2 01-01-78 07-01-77 and 3 Valves Subjected to Upset, 1574 04-30-73 liydrostatic Test Pressure for Safety Emergency, and Faulted Operating 12-31-74 Relief Valves, Section ill Conditions 1580-1 11-05-73 Buttwelded Alignment Tolerance and 01-01-78 Acceptable Slopes for Concentric Code Case 1635-1 was acceptable subject to the interpre-Centerlines for Section III, Class 1, tation that the stress limit designations of " Upset,"

2, and 3 Construction

" Emergency," and " Faulted" do not necessanly imply 1581 06-25-73 Power-Operated Pressure Relief agreement with specified plant conditions applicable 03-01-79 Valves,Section III to ASME Code Class 2 and 3 components for fluid 1588 08-13-73 Electro-Etching of Section III Code systems. These designations should be established and (N-46) 03-19-79 Symbols justified in the design specifications.

03-19-82 84 1601 11-05-73 Limits of Reinforcement for Two-1636-1 08-12-74 Stress Criteria for SectionIII, Class 2 07-01-74 Thirds Area,Section III, Class 1 07-01-77 and 3 Pumps Subjected to Upset, 1606-1 12-16-74 Stress Criteria Section III, Classes 2 Emergency, and faulted Operating 07-01-77 and 3 Piping Subject to Upset,Emer-Conditions gency, and Faulted Operating Con-ditions Code Case 1636-1 was acceptable subject to the inter-pretation that the stress limit designations of " Upset,"

Code Case 16061 was acceptable subject to the inter.

" Emergency," and " Faulted" do not necessarily imply pretation that the stress limit designations of " Upset,"

agreement with specified plant conditions applicable

" Emergency," and " Faulted" do not necessarily imply to ASME Code Class 2 and 3 components for fluid agreement with specified plant conditions applicable systems. These designations should be established and to ASME Code Class 2 and 3 components for fluid justified in the design specifications.

systems. These designations should be established and justified in the design specifications.

1651 08-12-74 Interim Requirements for Certifica-03-01-79 tion of Component Supports, Sec-1607-1 11-04-74 Stress Criteria for Section III, tion III, Subsection NF 07-01-77 Classes 2 and 3 Vessels Designed to 12 I4 Code Case was annulled on date as indicated, but the Code Cases 1635 and 1636 were approved by Council on annulment was first indicated in Revision 12 to this guide.

July 1,1974, and revised on August 12, 1974. Because Code 33 Lases 163s and 1636 were not in effect on September 1,1974, Corrected date.

they are not included in this guide.

1.84-6

1657 11-04-74 Stress Criteria for Class 2 and 3 03-19-82 Division 1,

Class 1,

2, and 3 07-01-77 Atmospheric and Low Pressure 1701-2 07-09-79 Determination of Capacities of (0-15 psig) Steel Storage Tanks (N-95-2) 07-09-82 Vacuum Relief Valves, Section 111,'

s

[j) 1659 11-04-74 Interconnection of Two Piping Division 1, Classes 2,3, and MC ana

\\

07-01-77 Systems for Section 111, Class I, 2, Division 2 Concrete Containments and 3 Construction 1702-1 07-11-77 Flanged Valves Larger than 24 1660 11-04-74 Overpressure Piotection UrGr Fmer-(N-96-1) 01-01-80 inches for Section 111, Division 1, (N-77) 03-01-79 gency Operating Conditions for Class 1, 2 and 3 Construction Section III, Class 1 1703 06-30-75 Brazing of Correr Alloys SectionIII, 1661 11-04-74 Postweld lleat Treatment P-No.1 01-01-78 Gass 2 01-01-78 Materials for Section 111, Class 1 1706 06-30-75 Data Report Forms for Component Vessels 12 31-75 Supports, Section 111, Class 1, 2 1662 11-04-74 S:op Assembly of Congents, Ap-and 3 01-01-78 purtmances and Piring Subassemblies 1711 11-03-75 Pressure Relief Valve Design Rules, for Section 111, Class 1,2,3 and MC (N-100) 01-08 79 Section 111, Division 1, Class 1, 2 Construction 01-21-82 and 3 1665 11-04-74 Pressure-Temperature Ratings for 01-01-83 (N-81) 07-01-78 Cass ! Valves Made from 5 Cr-1/2 Mo, Section 111 Code Case 171I was acceptable subject to the following 1672 11-04-74 Nuclear Valves for Section 111, Divi-conditions in addition to those conditions specified in 03-21-77 sion 1, Class 1, 2, 3 Construction the Code Case. The following information should be 1675 12-16-74 Tubesheet to Shell or Formed llead provided in the Safety Analysis Report:

07-01-76 Weld joints, Section 111, Class !

Vessels (1) If stress hmits are used in excess of those specified 12 1676 12-16-74 Clarification of Stress Intensities in for the upset operating condition, it should be 07-01-76 Curved Pipe or Welded Elbows, demonstrated how the pressure relief function is Section 111 ensured. Refer to paragraph 3.1,Section I, of the 1677 12-16-74 Clarification of Flarge Ihign Loads, Case for Class 1 and paragraph 3.2,Section II, of (N-82) 03-01-79 Section III, Class 1,2, and 3 the Case for Class 2 and 3 pressure relief valves.

1678 12-16-74 Butterfly Valves of Circular Cross 01-08-79 Section Larger than 24 in. NPS for (2) If Case 1660 is to be used in conjunction with this s

T 01-01-80 Section Ill, Class 2 and 3 Construc-Case, it should be stated that the stress limits

\\'

tion of Case 1660 supersede those of paragraph 88 1681-1 03-03-75 Organizations Accepting Overall 3.2(b),Section I, of Case 1711.

Functional (N-84) 03-01-79 Responsibility for Section Ill Con-assurar.ce of (1) above is required in all situations.

struction 1683-1 03-01-76 Bolt floles for SectionIII, Class 1, 1712 08-11-75 Nameplates and Stamping for Sec-07-01-76 2, 3 and MC Component Supports (N-101) 03-01-79 tion Ill, Division 1, Class 1, 2, 3 1685 04-28-75 Furnxe Brazing Sectim III, Oass 1, and MC Construction as Referenced 01-01-78 2, 3 and MC Construction in NA-8300 12 1686 03-03-75 Furnace Brazing,Section III, Sub-1718 08-11-75 Design of StructuralConnections for 01-01-78 section NF, Component Supports 07-01-76 Linear Type Component Supports, 1689-1 09-10-76 Alternate PWIIT Time and Temper-Section III, Division 1, Class 1,2 and 01-01-78 ature for SA-182 Grade F22, SA-387 3 and MC 12 Grade 22, @ 2 and SA-335 Grade 1719 08-11-75 Single-Welded, Full-Penetration Side-P-22 Section III, Qas 1,2,3 and CS 07-01-76 wall Butt Joints in Atmospheric Storage Tanks,Section III, Divi-Code Case 1689-1 was acceptable subject to the follow-sion 1, Oass 2 ing condition in addition to that specified in the Code 1726 11-03-75 Refinement of Low Alloy Steel l

Case: The alternate postweld heat treatment should (N-109) 03-01-79 Ileat Affected Zone Under Overlay be prequahfied along with the applicable welding Cladding,Section III, Division 1, procedure in accordance with ASME Section IX.

Class 1 Components 1727 12-22-75 Alternate Test Fluids,Section III, 1692 04-28-75 Rules for Design of Welded Class 1 (N-110) 01-01-79 Division 1 (N-90) -

07-01-78 Pumps 1695-1 11-03-75 Brazing,Section III, Division 1,

Code Case 1727 was acceptable subject to the follow-01-01-78 Class 3 ing condition in addition to those conditions specified 1700 11 03-75 Determination of Capacities of in the Code Case: The applicant should provide justifica-(N-94) 03-19-79 Liquid Relief Valves, Section ill, tion in the referencing Safety Analysis Report for the i

)

fluid selected for use in the pressure test. 'Ihe informa-j Nn* 3Ns iecaE Nei'Ae [6ki wYno": fn er' rect *"$

fi n provided should demonstrate that the fluid selected reMarch 31,1975, the Code Case was not included in this guide, will not have deleterious effects on the material of the 1.84-7 n

l pressure boundary and that the fluid may be safely tion to other components should be treated on a case-used at the specified temperature an.d pressure of the by-case basis. Each licensing application in which the test. When the fluid selected foe asi is the operating Code Case is to be used should contain information fluid, additional information is not r: quired.

showing that, as a minimum, the closure fixture will impose loads that result in stresses equal to or greater 1729.

11-03-75 Minimum Edge Dist;nse - dolting than those induced during the hydrostatic test of a (N-Ill) 03-01-79 for Section !!I, Divisicn 1, Classi, complete pump assembly. A closure fixture for the 2, and 3 and MC Construction of part being tested that is similar in size and shape to Component Supports the actual mating part is considered adequate to impose 1732 11-03-75 liardsurfaced Valves with inlet these loads. It is not intended that piping reaction (N-il4) 01-01-79 Connections less than 2-in. Nominal loadings be simulated in the hydrostatic testing.

Pipe Size for Sectionlli, Division 1 Class I and 2 Construction 1783-1 01-14-77 Qualification of Nondestructive 1733 11-03-75 Evaluation of Safe Shut Down Earth-01-01-79 Examination Personnel,Section I!!,

(N-il5) 01-01-78 quake Loadings for Section ill, Division 1 Division 1, Class MC Containment Vessels Code Case 1783-1 was acceptable subject to the follow-1734 11-03-75 Weld Design for Use for Section !!!,

ing condition in addition to those conditions specified (N-116) 01-01-78 Dtvision 1, Class 1,2,3 and MC Con-in the Code Case: The first sentence of paragraph (1) struction of Component Supports should be replaced with the following: "The certifica-tion of the Level III nondestructive examination per-Code Case 1734 was acceptable subject to the follow-sonnel for the purpose of this Section of the Code ing conditions in addition to those conditions specified shall be the responsibility of the employer of the in the Code Case: If the configuration of Figure 1 of the Level 111 individual. If the employer is not a Certifi-Code Case is used for Class I and MC component cate lloider, then the verification of such certificate supports, full penetration welds should be used. The is the responsibility of the Certificate lloider."

application of the configuration shown in Figures 2 and 3 should be restricted to the welding of cans for 1791 01-14-77 Projection Resistance Welding of spring encapsulation in spring hangers. In Figure 3, (N 154) 01-14-80 Valve Seats,Section III, Division 1, the length of the leg of the fillet weld adjacent to Class I,2 and 3 Valves the plate should be equal to the thickness of the 1796 01-14-77 Body Neck Thickness Determina-I exposed end of the plate; also, the leg of the fillet (N-159) 07-01-78 tion for Valves with inlet Connec-weld adjacent to the shell should be equal to the tions 4-Inch Nominal Pipe Size and thickness of the exposed end of the shell.

Smaller, Section Ill, Division 1,

Class 1, 2, and 3 1739-4 11-17-80 Pum p Internal

items, Sec-1808 02-16-77 F-Number Classification of Low (N-119-4) 12-01-83 tion Ill, Division 1,

Class 1,

01-01-78 Alloy and Carbon Steel Bare Rod 2, and 3 Electrodes Sectionsl, II, Ill, IV, V, 1744 03-01-76 Carbon Steel Pipe Flanges Larger Vill,and IX (N-121) 03-01-79 than 24in., Sectionill, Division 1, 1812 03-23-77 Siie of Fillet Welds fu Socket Weld-Class 2 and 3 Construction (N-174) 01-07-80 ing of Piping,Section III, Division 1 1765 04-26-76 Machining After liydrostatic Testing 01-01-81 07-01-77 Class 2 and 3 Construction, Section 1818 03-23-77 Welded Joints in Component Stand-III, Division 1 (N-175) 07-01-79 ard Supports,Section III, Division 1 1768 06-29-76 Permanent Attachments to Contain-01 01-78 ment Vessels-Class MC,Section III, Code Case 1818 was acceptable subject to the following Division I condition in addition to those conditions specified in 1769-1 02 16-77 Qualification of NDE Leveilli Per-the Code Case. That portion of the unwelded housing 10-01-77 sonnel, Section 111, Division I that is limited to 90* maximum should include a 1774-1 07-11-77 Minimum Wall Thickness for Class 2 minimum of two sectors that are uniform in length.

(N-142-1) 01-01-80 and 3 Valves, Section Ill, Division i 1775 08-13-76 Data Report Forms for Core Sup-N-179 07-11-77 Openings in Valves for Sectionill, 08-13-79 port Structures, Class CS, Section 111, 07-11-80 Division 1, Class 1, 2 and 3 Con-Division I struction 83 1780-1 07-10-78 flydrostatic Testing and Stamping N-182 07-11-77 Alternate Rules for Procedure Qual-(N-146-1) 12-11-81 of Components, Section 111, Divi-07-01-81 ification Base Material Orientation, 01-01-82 sion 1 Construction Section Ill, Division 1, Class 2 and 3 Construction Code Case 1780-1 was acceptable subj-ct to the follow-N-184 07-11-77 Roll Threading of SA-453 Bolting ing conditions in addition to those conditions specified 07-01-79 for Section 111, Division 1, Class *,

in the Code Case: On a generic basis, the application of 2,3 or CS Construction the Code Case is limited to pumps and valves. Applica-N-189 08-29-77 Primary Membrane Plus Primary 1.84-8 m

4

07-01-79 Bending Stress Intensity Limits and the material thickness to which the straia gage or for Other Than Solid Rectangular thermocouple will be attached by CD welding.

Sections for Section III, Division 1,

\\

Class MC Constructian N-261 05-15-80 Weld Procedure Qualification for i

s N-193 11-21-77 Use of SB41 and !B42 Bronze for 12-13-82 Materials with Impact Require-Il-21-80 Section Ill, Division. Class 3 Flange ments for Section 111, Division 1, I

and Socket Weld Enu Valves Class 3 Construction N-199 03-20-78 Intervening Elements, Section 111, 01 01 81 Division 1, Classes 1, 2, 3 and MC N-263 03-17-80 Alternate Thread Forms, Series and Component Construction 03-17-83 Fits for Component Supports, Sec-tion Ill, Division 1 Code Case N-199 was acceptable subject to the following condition in addition to those conditions specified in Ceje Case N-263 was acceptable subject to the following I

the Code Case: The applicant should provide informa-conditions in addition to those conditions specified in tion in the referencing Safety Analysis Report that the Code Case. The following information should be demonstrates that all intervening elements have been provided in the Safety Analysis Report: (1) a descrip-I designed in compliance with the requirements of the tion of the application, (2) a need for the use of the respective design specification.

Code Case, and (3) a demonstration that support design will withstand maximum conditions of loading with 1693 03-20-78 Welding Procedure Quahfication of the worst combination of thread tolerance.

(N-212) 01-01-81 Dissimilar Metal Welds When "But-tering" with Alloy Weld Metal and N-272 05-15-80 Compiling Data Report Forms, Ileat Treatment May Be involved, 01-01-82 Section Ill, Division 1 Section 111, Division 1,

and N-275 05-15-80 Repair of Welds, Section 111,Section IX 12-07-82 Division 1 N-214-2 05 25-83 Use of SA-351 Grade CN7M, for 12-31-83 12-31-83 Valves,Section III, Division 1 N-226 11-20-78 Temporary Attachment of Thermo-Code Case N-275 was acceptable subject.to the follow-01-01-80 couples,Section III, Division 1, ing condition in addition to those conditions specified Class 1, 2 and 3 Component Con-in the Code Case: Use of the Code Case is applicable struction only when the removal of an indication requires that

[

\\ N428 03-19-79 Alternate Rules for Sequence of the full weld thickness be removed and, in addition, 03-19-82 Completion of Code Data Report the backside of the weld assembly joint is not acces-Forms and Stamping for Section III, sible for the removal of examination material If an Class I, 2, 3 and MC Construction indication is removed and weld-metal layers still N-238 05-14-79 liigh Temperature Furnace Brazag remain, it is not acceptable to gouge through the wall 01-01-82 of Seat Rings in Valve Bodies or in order to qualify for use of the Code Case. Instead, Bonnets for Section 111, Division examination of the cavity is required when such an 1,

Class 1,

2 and 3 Valves indication has been removed.

Code Case N-238 was acceptable subject to the follow-N-279 05-15-80 Use of Torquing as a Locking ing conditions in addition to those conditions specified 07-13-81 Device for Section III, Division in the Code Case:

The furnace brazing process 1, Class I, 2, 3, and MC Compo-procedure qualification should include a verification nent Supports for nonsensitization as given in ASTM A 262-70, Practices A or E, or ASTM A 708-74 whenever Code Case N-279 was acceptable subject to the following y

materials subject to sensitization are to be brazed.

condition in addition to those conditions specified in Documentation is required that a nonsensitizing the Code Case: When torquing or other preloading is brazing procedure was employed for valves produced used as a locking device and the joint is later unloaded to this Case.

or disassembled, the bolting should be replaced unless j

it can be demonstrated or proved to the authorized N-252 11-19 79 Low Energy Capacitive Discharge nuclear inspector that the original bolting has not 07-01-82 Welding Method for Temporary or been permanently strained.

Permanent Attachments to Compo-nents and Supports,Section III, N-280 05-15-80 Alternate Rules for Examination of Division 1, and XI 07 01-81 Welds in Section III, Oass 3 Storage Tanks Code Case N-252 was acceptable subject to the following N-281 05-15-80 Welding Operator Ittformance Qual-conditions in addition to those conditions specified in 07-01-81 ification,Section III, Division 1

[\\

the Code Case: The applicant should indicate in the N-300 11-17-80 IYessuroTemperature Ratings,ifydro-(v)

Safety Analysis Report the application, the material, 12-01-83 static Tests, and Minimum Wall 1.84-9

^

l Thickness of Valves, Section Hi, Upset, Emergency, and Faulted Division 1, Class 1 Operating Conditions l

N-302 03 16-81 Tack Welding,Section III, Divi-11-28-83 sion 1, Construction Code Case 1607 was acceptable subject to the inter-i N-320 07-13-81 Alternate PWifT for SA487, Grade pretation that the stress limit designations of " Upset,"

12-31-83 CA6 Nil, Section 111, Division i

" Emergency," and " Faulted" do not necessarily imply N-336 06-17-82 Examination of Welds inaccessible agreement with specified plant conditions applicable 06-30-83 During Pressure Test,Section III, to AShlE Code Class 2 and 3 components for fluid Division 1, Class hlC systems. These designations should be established and justified in the design specifications.

3. Code Cases that were endorsed by the NRC in a 1609-1 03-01-76 Inertia and Continuous Drive prior version of this guide and were superseded by revised (N-55) 08-28-78 Friction Welding,Section I, 111, g

Code Cases on or after July 1,1974, should be con-07-13-81 IV, Vill, Division I and 2, and sidered as not endorsed as of the date of the Council 04-05-84 IX action that approved the revised version of the Code 1630 11-04-74 External Pressure Charts for liigh Cases. These Code Cases that are no longer endorsed are (N-77) 07-10-78 Yield Strength Carbon Steels ard low listed in the following by number, effective dates,36 and Alloy Steels. (Yield strength above title.

38 Ksi to 60 Ksiinclusive.)For Sec-tion Ill, Class 1,2,3, and htC; and 37 1508 12-13-71 Allowable Stresses, Design Intensity Section Vlli, Division I and 2 06-30-75 and/or Yield Strength Values, Sec-1683 03-03-75 Bolt IIoles for Section 111, Division tion 1, III, ard VIII, Divisions I and 2 03-01-76 1, Class 1, 2, 3 and AfC Component 1516-1 06-25-73 Welding of Seats in Valves for Sec-Supports 08-11-75 tion 111 Applications 1689 06-30-75 Alternate PWitT Time and Temper-1539 11-06-72 hietal Bellows and hietal Diaphragm 09-10-76 ature for SA-182 Grade F22 Section (N-30-1) 11-21-77 Stem Sealed Valves, Section lit, Ill, Class 1, 2, 3 and CS Classes 1, 2, and 3 1540-1 03-03-73 Elastomer Diaphragm Valves, Sec-Code Case 1689 was acceptable subject to the follow-01-14-77 tion 111, Classes 2 and 3 ing condition in addition to that specified in the Code 1541-1 08-13-73 Ilydrostatic Testing of Embedded Case: The alternate postweld heat treatment should 09-30-76 Class 2 and Class 3 Piping for Sec-be prcquaufied along with the applicable welding pro-tion 111 Construction cedure in accordance with AShlE Section IX.

1541-2 09-30-76 flydrostatic Testing of Embedded 05-15-78 Class 2 and Class 3 Piping for Sec-1695 04-28-75 Brazing, Section 111, Class 3 tion 111, Division 1 Construction 11-03-75 1552 12-18-72 Design by Analysis of Sectior.111, 1701 06-30-75 Determination of Capacities of 08-29-77 Class ! Valves 03-20-78 Vacuum Rehef Valves Section 111, 1553 12-18-72 Upset lleading and Roll Threading Class hlC 03-03-75 of SA-453 for Bolting, Section 111 1701-1 03-20-78 Determination of Capacities of 1555 12-18-72 Certification of Safety Relief Valves (N-95-1) 03-19-79 Vacuum Relief Valves, Section Ill, 01-14-77 on Liquids 07-09-79 Division I and 2,

Class htC 1606 11-05-73 Stress Criteria for Section III, Class 1702 06-30-75 Flanged Valves Larger than 24 12-16-74 2 and 3 Piping Subjected to Upset, 07-11-77 inches for Section 111, Class 1, 2 Emergency, and Faulted Operating and 3 Construction Conditions 1720 08-11-75 Weld End Preparation for SectionIll, 03-01-76 Division 1 Construction

(

Code Case 1606 was acceptable subject to the inter-pretation that the stress limit designations of " Upset,"

Code Case '720 was acceptable subject to the follow-

" Emergency," and " Faulted" do not necessarily imply ing condition in addition to those conditions specified

(

agreement with specified plant conditions applicable in the Code Case: Weld end nreparations other than to ASilE Code Class 2 and 3 components for fluid those shown in Figures 1, 2, and 3 of the Code Case systems. These designations should be established and are not acceptable on a generic basis. Such alternative justified in the design specifications.

end preparations should be treated on a case-by-case basis.

1607 11-05-73 Stress Criteria for Section 111, Clas-I l-04-74 ses 2 and 3 Vessels Subjected to 1720-1 03-01-76 Weld End Preparation for SectionIII, 16Earlier date-date Code Case was approved by ASME Council, later date-date revision of Code Case was approved by ASME Council.

Code Case 15o8 is no longer hsted by ASME as a Section III Code Case 1720-1 was acceptable subject to the follow-17 Code Case and is therefore deleted from the acceptable hsting.

ing condition in addition to those conditions specified 1.84-10 a

in the Code Case: The acceptance of weld end prepara-temperature rating of the flexible hose. Data to demon-tions other than those shown in Figures 1, 2, and 3 strate compliance of the flexible hose with NC/ND-3649, of the Code Case should be evaluated or, a case-by-iurticularly NC/ND-3649.4(e), are required to be furnished

[\\

case basis, with the application.

U 1739-2 08-28-78 Pump Internal Items,Section III, N-1921 08 30-79 Use of Flexible llose for Section III, (N-119-2) 08-25-80 Division 1, Class 1,2, and 3 09-16-81 Division 1. Class 1, 2, and 3 Con-1739-3 08-25-80 Pump Internal Items,Section III, struction (N-119-3) 11-17-80 Division 1 Class 1,2, and 3 1761 04-26-76 Use of SB-148 Alloy CA954 for Sec-Code Case N-192-1 was acceptable subject to the follow-01-14-77 tion III, Division 1, Class 2 or 3 ing conditions in addition to those conditions specified Flanged End Valves in the Code Case: The applicant should indicate system 1761-1 01-14-77 Use of SB-148 Alloy CA954, application, design and operating pressure, and pressure-y (N-133) 01-07-80 Section !!I, Division 1, Class 3 temperature rating of the flexible hose. Data to demon-04-02-82 strate compliance of the flexible hose with NC/ND-3649, 1769 08-13-76 Qualification of NDE leveilli Per-particularly NC/ND-3649.4(e), are required to be

)

02-16-77 sonnel,Section III, Division I furnished with the application.

1774 08-13 76 hfinimum Wall Thickness for Gass 2 07-11-77 and 3 Valves, SectionIll, Division 1 N-196 01-09-78 Exemption from the Shakedown 1780 09-10-76 flydrostatic Testing and Stamping 01-08-79 Requirements When Plastic Anal-03-10-78 of Pumps for Class 1 Construction, ysis is Performed for Section Ill,Section III, Division 1 Division 1, Class 1 Construction N-214 05-15-78 Use of SA-351, Grade CN7ht, for Code Case 1780 was acceptable subject to the follow-07-13-81 Valves for Section 111, Division 1 ing conditions in addition to those conditions specified 09-07-82 Construction in the Code Case: Each licensing application in which N-2141 09-07-82 -Use of SA-351 Grade CN7ht, for the Code Case is to be used should present informa-05-25-83 Valves, Section Ill, Division I tion that satisfactorily demonstrates that the subassem-N-237 07-09-79 Ilydrostatic Testing of Internal bly tests adequately simulate the pressure loadings.

01-21-82 Piping,Section III, Division 1 Also, the closure fixture for the test subassembly should 09-07-82 adequately simulate the rigidity of adjacent subassem-N-23 7-1 09-07-82 flydrostatic Testing of Internal

[m\\s) bhes and also simulate the interface loadings from 05-25-83 Piping,Section III, Division 1,

adjacent subassemblies that would result from a Classes 2 and 3 hydrostatic pressure test of a complete pump assembly.

N-318 07 13-81 Procedure for Evaluation of the As a minimum, the closure fixture should impose loads 02-20-84 Design of Rectangular Cross Sec-that result in stresses equal to or greater than those tion Attachments on Class 2 or induced during the hydrostatic test of a complete 3 Piping,Section III, Division I pump assembly. It is not intended that piping reac-tion loadings be simulated in the hydrostatic testing.

Code Case N-318 was acceptable subject to the follow-ing conditions in addition to those conditions speci-1783 09-10-76 Quahfication of Nondestructive Per-fied in the Code Case. Applicants should identify in 01-14-77 sonnel,Section III, Division I their Safety Analysis Report: (1) the method of lug attachment, (2) the piping system involved, and (3) the Code Case 1783 was acceptable subject to the follow-location in the system 'where the Case is to be applied.

ing condition in addition to those conditions specified in the Code Case: The first sentence of paragraph (1)

N-345 06-17-82 Attachment of AhtS 5382 Alloy 31

+

should.be replaced with the following: "The certifica-12-13-82 Seat Rings by Friction Welding, tion of the levelIII nondestructive examination person-Section III, Division 1, Classes 1,2, j

nel for the purposes of this Section of the Code shall and 3 1

be the responsibility of the employer of the Level III N-362 02-14-83 Alternate Rules for Pressure Testing individual. If the employer is not a Certificate lloider, 05-25-83 of Containment Items, Section 111, then the verification of such certificate is the responsibil-Division I ity of the Certificate lloider."

4. Code Cases for Class I components that are not on N-192 01-09-78 Use of Flexible llose for Section 111, the approved list of this guide (paragraph C.1) or other 08-30-79 Division I, Class 1, 2, and 3 Con-regulatory guides, or for which authorization by the struction Commission has not been granted, are not acceptable for Class I components.

m Code Case N-192 was acceptable subject to the following

)

conditions in addition to those conditions specified in V

the Code Case. The applicant should indicate system

5. Code Cases for other classes of components that application, design and operating pressure, and pressure-are not on the approved list of this guide (paragraph 1.84. - >

C.1) or other regulatory guides should be considered not

2. Components ordered to a specific version of a acceptable on a generic basis.

Code Case need not be changed because a subsequent revision to the Code Case is listed as the approved version D.

IMPLEMENTATION in this guide.

The purpose of this section is to provide informa-

3. Components ordeted to a Code Case that was tion to applicants regarding the use of this regulatory guide.

previously approved for use need not be changed because the Code Case has been subsequently annulled.

1. Except for those Code Cases that have been annulled by action of the ASME Council, the NRC staff has found the Code Cases listed in this regulatory guide under

4. Code Cases on the approved list may be applied to regulatory position C.1 acceptable for appropriate use.

components that were in process of construction prior Other Code Cases may be considered for use in accord-to the effective date of the Code Case within the limits I

ance with footnote 6 of the Codes and Standards rule, specified in the Code Case and applicable regulations or

$ 50.55a of 10 CFR Part 50.

recommended in other regulatory guides.

\\

O O

1.84-12 C

APPENDIX NUMERICAL LISTING OF CODE CASES

• 1540-2 (N-31)

N 240 N-339 N-32-4 N 241 N-341 t

l N-55-1 N-243 N-345-1

' 1621-2 (N42-2)

N-247 N-346 1630-1 (N-66-1)

N-260 N-347 1720-2 (N-106-2)

N-262 N-349 1739-4 (N-1194)

N-271 N-350 1745 (N-122)

N-276 N-357 N-133-1 N-282 N-359 1791 (N-154)

N-284 N-362-1 f

1792-2 (N-155-2)

N-292 N 368 I

1797 (N-160)

N-304 N-369 i

N-192-2 N-309 N-376 N-196-1 N-313 N-377 i

N-215 N-314.

N-383 j

N-217-1

- N-315 N-391 N-220 N-316 N-392 N-229 l N-318-1 N-393 l

N-233 N-319 N-394 N-23 7-2 N-328 N-397 e

f

' Code Case 1625 was inadvertently listed in the appendix of Regulatory Guide 1.84, i

Revision 1. This Code Case is covered in Regulatory Guide 1.85. Revision 1.

)

Code Case 157f is a Section Vill Case and therefore has been eliminated from this j

regulatory guide, wtich covers Section til Cases.

L 4

l 1.84-13 i

__~--_--,----.-.-,-,m___m,.-

,y.-,,_.

UNITED STATES

,,ost conss man NUCLEAR REGULATORY COMMISSION restaca e, reis raio WASHINGTON, D.C. 20555 wYs'.'."S e PERMIT No G 47 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE. $300 120555064215 1 IGP11s US NRC I

0,"

l DEST RECSB 4

WASHINGTON DC 20555

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1 0