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:
ve power under 14.3.3−18 Draft Revision 1 – September 2018 design-basis temperature, differential pressure, and flow conditions. The ITA should specify that stroke tests will be performed of these 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 applicable system safety-related valve listed in the ITAAC table performs its function to fail to (or maintain) its safety- related position on loss of motive power under 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. (v) An ITAAC should verify the operation of the main turbine isolation valves as part of preoperational testing. The Design Commitment should specify that the main turbine isolation valves close in response to a turbine trip signal. The ITA should specify that a test will be performed of the main turbine isolation valves. The Acceptance Criteria should specify that each main turbine isolation valve listed in the ITAAC table closes on a turbine trip signal. These ITAAC for pump and valve preoperational testing may be accomplished as part of the licensee’s preservice testing program. Tier 2 information should indicate that these tests will be conducted under maximum achievable preoperational conditions and should describe the analyses that will be performed to determine whether the test results demonstrate that the valves will function under design basis conditions (See DCD Tier 2, Section 3.9.6). Where indicated by significant operating experience with specific pumps or valves, the proper