LEADER 01633oam  2200481   450 
001 9910715372403321
005 20210309174005.0
035   $a(CKB)5470000002510308
035   $a(OCoLC)1237759708
035   $a(EXLCZ)995470000002510308
100   $a20210218d1990      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aPotential failure of motor-operated butterfly valves to operate because valve seat friction was underestimated
210  1$aWashington, DC :$cUnited States Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation,$d1990.
215   $a1 online resource
225 1 $aInformation notice ;$vno. 90-21
300   $a"March 22, 1990."
606   $aNuclear power plants$xPiping$xValves
606   $aButterfly valves
606   $aFriction
606   $aButterfly valves$2fast
606   $aFriction$2fast
606   $aNuclear power plants$xPiping$xValves$2fast
615  0$aNuclear power plants$xPiping$xValves.
615  0$aButterfly valves.
615  0$aFriction.
615  7$aButterfly valves.
615  7$aFriction.
615  7$aNuclear power plants$xPiping$xValves.
712 02$aU.S. Nuclear Regulatory Commission.$bOffice of Nuclear Reactor Regulation,
801  0$bGPO
801  1$bGPO
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910715372403321
996   $aPotential failure of motor-operated butterfly valves to operate because valve seat friction was underestimated$93295603
997   $aUNINA