Document: NUREG-0800
Document ID: 2ab6f47e-1578-451d-b6ad-29434e31a72b
Document Type: srp
Title: SYSTEM QUALITY GROUP CLASSIFICATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340619.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.2.2
CFR Part: 
CFR Title: 

Content:
ON FINDINGS The staff's review should verify that adequate and sufficient information is contained in the SAR and amendments to arrive at a conclusion of the following type, which is to be included in the staff's safety evaluation report: Pressure-retaining components of fluid systems-important to safety such as pressure vessels, heat exchangers, storage tanks, pumps, piping and valves have been classified Quality Group A, B, C, or D and have been identified in an acceptable manner in Table 3.X.X and on system piping and instrumentation diagrams in the SAR. These components have been constructed to quality standards commensurate with the importance of the safety function to be performed. The review of Quality Group A and B (ASME Section III, Class 1 and 2) reactor coolant pressure boundary components is discussed in Sec- tion 5.2.1.1 of the SER. Other Quality Group B components of systems identified in Position C.i.a through C.1.e of Regulatory Guide 1.26 are constructed to ASME Section 1II, Class 2. Components in systems identified in Postion C.2.a through C.2.d of Regulatory Guide 1.26 are constructed to Quality Grup C standards, ASME Section III, Class 3. Components in systems identified in Position C.3 of Regulatory Guide 1.26 are constructed to Quality Group D standards such as,. ASME Section VIII and ANSI B31.1. The staff concludes that pressure-retaining components of fluid systems important to safety have been properly classified as Quality Group A, B, C, or D items and meets the requirements of General Design Criterion 1, "Quality Standards and Records." This conclusion is based on the applicant having met the requirements of General Design Criterion 1 by having properly classified these 3.2.2-5 Rev. 1 - July 1981 pressure-retaining components important to safety Quality Group A, B, C, or 0 in accordance with the positions of Regulatory Guide 1.26, "Quality Group Classifications and Standards," and by our conclusion that the identified pressure-retaining