Failure of Rockwell-Edward main steam isolation valves.

Failures of main steam isolation check valves resulting in disc separation.
Published: (1990)

Vibration-induced degradation and failure of safety-related valves.
Published: (2006)

Common mode failure of main steam isolation nonreturn check valves.
Published: (1983)

Failure of main steam isolation valves as a result of sticking solenoid pilot valves.
Published: (1995)

Main steam isolation valve failure to close on demand because of inadequate maintenance and testing.
Published: (1994)

Main steam isolation valve (MSIV) leakage.
Published: (1982)

Main steam isolation valve guide rail failure at Waterford Unit 3.
Published: (1988)

Main steam isolation valve closure logic.
Published: (1985)

Failure of a main steam safety valve to reseat caused by an improperly installed release nut.
Published: (1996)

Valve stem corrosion failures.
Published: (1985)

Inadequate inservice testing of main steam isolation valves.
Published: (1985)

Potential for surveillance testing to fail to detect an inoperable main steam isolation valve.
Published: (1994)

Reliability of main steam safety valves.
Published: (1986)

Failure of auxiliary feedwater manual isolation valve.
Published: (1986)

Main steam safety valve test failures and ringed setting adjustments.
Published: (1986)

Main steam safety valve failures caused by failed cotter pins.
Published: (1984)

Shaft seal packing causes binding in main steam swing disc check and isolation valves.
Published: (1980)

Check valve failures.
Published: (1981)

Failure to close service water cross-connect isolation valves.
Published: (1989)

Failure of a boiling water reactor target rock main steam safety/relief valve.
Published: (2003)

Fabrication flaw density and distribution in repairs to reactor pressure vessel and piping welds /
by: Schuster, G. J.
Published: (2008)

Failure of air check valves to seat.
Published: (1985)

Instrument failure causes opening of PORV and block valve.
Published: (1980)

Periodic verification of leak tight integrity of pressure isolation valves.
Published: (1987)

Failures of nut-locking devices in check-valves.
Published: (1993)

Motor-operated valve failures due to hammering effect.
Published: (1985)

Primary containment isolation valve discrepancies.
Published: (1983)

Valve-stem failure caused by embrittlement.
Published: (1992)

inadequate main steam safety valve (MSSV) setpoints and performance issues associated with long MSSV inlet piping.
Published: (1997)

Potential failure of motor-operated butterfly valves to operate because valve seat friction was underestimated.
Published: (1990)

Failures of motor-operated valves due to degraded stem lubricant.
Published: (2010)

Failure of check and stop check valves subjected to low flow conditions.
Published: (1986)

Motor-operated valve failure caused by stem protector pipe interference.
Published: (1995)

Main steam safety valve setpoint variation as a result of thermal effects.
Published: (1996)

Degradation of static "O" ring pressure switches.
Published: (1987)

Multiple-subsequent actuation of safety/relief valves following an isolation event.
Published: (1978)