NB/T 20167-2012 (English Version) PDF

Scope: This standard specifies the test items, test methods, test conditions and acceptance criteria for the identification of active is lation valves (especially gate valves and stop valves) that perform safety functions in pressurized water reactor nuclear power plants using test methods. Valve electric devices and control circuit accessories should use products that have passed other standards and are not within the scope of this standard. This standard is applicable to the identification of is lation valves installed in pressurized water reactor nuclear power plants that are required to maintain performance after being affected by normal operating conditions, abnormal operating conditions and accident conditions, including electric is lation valves and pneumatic is lation valves.

NB/T 20167-2012 Referenced Document

GB/T 21465 Terminology for valves
GB/T 2421.1-2008 Environmental testing for electric and electronic products.General and guidance
GB/T 2423.10-2008 Environmental testing for electric and electronic products.Part 2:Tests methods Test Fc:Vibration(sinusoidal)
GB/T 2423.2-2008 Environmental testing for electric and electronic products.Part 2:Test methods.Tests B:Dry heat
GB/T 2423.4-2008 Environmental testing for electrical and electronic products - Part 2: Test method Test Db alternating damp heat (12h + 12h cycle)
JB/T 5296 Valves for general purposes Test method of flow coefficient and flow resistance coefficient
NB/T 20010.9 PWR nuclear power plant valve-Part 9: Final examination and test in manufactory
NB/T 20036.2 Qualification of active mechanical equipment used in nuclear power plants.Part 2:Seismic qualification
NB/T 20036.6 Qualification of active mechanical equipment used in nuclear power plant.Part 6:Functional qualification requirements for valve assemblies

2012 NB/T 20167-2012 Qualification procedure for isolation valve of pressurized water reactor nuclear power plants