Document: NRC Regulatory Guide
Document ID: 08cebcdf-2e81-4e08-a508-9f6b4701c0a5
Document Type: regulatory_guide
Title: Design, Fabrication, and Materials Code Case Acceptability, ASME Section III (Rev. 40)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22195A282.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.84
CFR Part: 
CFR Title: 

Content:
Code Case are not acceptable on a generic basis. Such alternative end preparations should be treated on a case-by-case basis. 3/1/76 DG-1405, Page 51 CODE CASE NUMBER TABLE 5 CODE CASES THAT HAVE BEEN SUPERSEDED BY REVISED CODE CASES ON OR AFTER JULY 1, 1974 REVISION DATE 1720-1 Weld End Preparation for Section III, Division Construction The acceptance of weld end preparations other than those shown in Figures 1, 2, and 3 of the Code Case should be evaluated on a case-by-case basis. 11/20/78 1722 Vacuum, Carbon Deoxidized SA-508 Forgings, Section III, Division 1, and VIII, Division 1 and 2 1/8/79 1741 Interim Rules for the Required Number of Impact Tests for Rolled Shapes, Section III, Division 1, Subsection NF, Component Supports 1/14/77 1755 Alternate Rules for Examination of Welds in Piping, Class 1 and 2 Construction, Section III, Division 1 1/14/77 1759 Material for Internal Pressure Retaining Items for Pressure Relief Valves, Section III, Division 1, Class 1, 2, and 3 Applicants using this Code Case should also use Code Case 1711 for the design of pressure relief valves. 5/15/78 1761 Use of SG-148 Alloy CA954 for Section III, Division 1, Class 2 or 3 Flanged End Valves 1/14/77 1769 Qualification of NDE Level III Personnel, Section III, Division 1 2/16/77 1774 Minimum Wall Thickness for Class 2 and 3 Valves, Section III, Division 1 7/11/77 1780 Hydrostatic Testing and Stamping of Pumps for Class 1 Construction, Section III, Division 1 Each licensing application in which the Code Case is to be used should present information that satisfactorily demonstrates that the subassembly tests adequately simulate the pressure loadings. In addition, the closure fixture for the test subassembly should adequately simulate the rigidity of adjacent subassemblies and also simulate the interface loadings from adjacent subassemblies that would result from a hydrostatic pressure test of a complete pump assembly. As a minimum, the closure fixture should impose loads that result in