Document: NUREG-0800
Document ID: 217aa53e-c4ac-4a8f-b1b6-968ad75d68ab
Document Type: srp
Title: INSERVICE TESTING OF PUMPS AND VALVES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070368.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.6
CFR Part: 
CFR Title: 

Content:
ng condition). (g) Valve design features, material, and surfaces should accommodate nonintrusive diagnostic testing methods available in the industry or as specified. (h) Piping system design features should be able to accommodate all the applicable check valve testing requirements.69 f. Pressure Isolation Valve Leak Testing DRAFT Rev. 3 - April 1996 3.9.6-12 (1) Pressure isolation valves (PIVs) are the two normally closed valves, in series, that isolate the reactor coolant system (RCS) from an attached low- pressure system. PIVs are within the reactor-coolant pressure boundary (RCPB) which is defined in 10 CFR 50.2. The valve type, valve size, and operator (if any) vary. PIVs are classified as A or AC in accordance with the provisions of subsection 1.4 of OM 10. (2) PIV seat leakage rate tests should be conducted in accordance with paragraph 4.2.2 of OM 10 on each individual PIV. Allowable leak rates and test intervals for each PIV should be specified in the plant Technical Specifications or FSAR. The maximum allowable leak rate for each PIV at full reactor pressure should be <1.9 liters per minute (L/m) (0.5 gallons per minute (gpm)) per nominal inch of valve size, and not to exceed 19 L/m (5 gpm). The test interval should be 18 months or every refueling outage, whichever is longer. (3) A list of PIVs that includes the allowable leak rate for each valve should be provided in the applicant's safety analysis report.70 g. Containment Isolation Valve Leak Testing (1) Containment isolation valves (CIVs) should be leak tested in accordance with paragraph 4.2.2 of OM 10. Allowable leak rates and test intervals for CIVs should be stated in the plant Technical Specifications. Analysis of leakage rates should be in accordance with paragraph 4.2.2.3(e) of OM 10. Corrective actions, if required, should be in accordance with paragraph 4.2.2.3(f) of OM 10. (If the requirements are removed from 10 CFR 50.55a(b), the testing per 10 CFR 50, Appendix J, is sufficient.)71 (2) A list