Potential failure of motor-operated butterfly valves to operate because valve seat friction was underestimated.

Bibliographic Details
Format:	Government Document eBook
Language:	English
Published:	Washington, DC : United States Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation, 1990.
Series:	Information notice ; no. 90-21.
Subjects:	Nuclear power plants > Piping > Valves. Butterfly valves. Friction.
Online Access:	https://purl.fdlp.gov/GPO/gpo151545

Available Online