Document: NUREG-0800
Document ID: 62485d6f-6b2a-4360-acb5-f874d2adc406
Document Type: srp
Title: PIPING SYSTEMS AND COMPONENTS - INSPECTIONS, TESTS,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1808/ML18088A069.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.3
CFR Part: 
CFR Title: 

Content:
safety-related pumps. The Acceptance Criteria should specify that each system safety-related pump listed in the ITAAC table has an NPSHA that is greater than or equal to the NPSHR while the system is aligned in an emergency operating lineup. (b) Valve Preoperational Testing. (i) An ITAAC should verify valve operation as part of preoperational testing. The Design Commitment should specify that the system’s safety-related valves change position under design-basis temperature, differential pressure, and flow conditions. The ITA should specify that diagnostic stroke tests will be performed of the system’s safety-related valves under preoperational temperature, differential pressure, and flow conditions and that the data obtained from the stroke tests will be analyzed to demonstrate that each valve is capable of performing its safety functions under those conditions. The Acceptance Criteria should specify that each system safety-related valve listed in the ITAAC table strokes fully open and fully closed by remote operation (or manual operation if a manually operated valve) under 14.3.3−17 Draft Revision 1 – September 2018 preoperational temperature, differential pressure, and flow conditions. Analysis, based on sufficient diagnostic data, should demonstrate that each valve will perform at its design-basis capability as established by the type test performed in accordance with the applicable functional qualification ITAAC. (ii) An ITAAC should verify the closure time of containment isolation valves as part of preoperational testing. The Design Commitment should verify that containment isolation valve closure times limit potential releases of radioactivity. The ITA should specify that a test will be performed of the automatic containment isolation valves. The Acceptance Criteria should specify that each automatic containment isolation valve listed in the ITAAC table travels from the full open to full closed position in less than or equal to the time listed in the