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#REDIRECT [[ELV-00197, Responds to Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety-Related Equipment, Per NUREG-1275,Vol 2.Instrument Air Sys Adequate for Operation of pneumatically-operated,safety-related Equipment]]
| number = ML17360A145
| issue date = 02/17/1989
| title = Responds to Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety-Related Equipment, Per NUREG-1275,Vol 2.Instrument Air Sys Adequate for Operation of pneumatically-operated,safety-related Equipment
| author name = Hairston W
| author affiliation = GEORGIA POWER CO.
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
| docket = 05000424, 05000425
| license number =
| contact person =
| case reference number = RTR-NUREG-1275
| document report number = ELV-00197, ELV-197, GL-88-14, NUDOCS 8903090244
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 98
}}
 
=Text=
{{#Wiki_filter:13-MS-A20 APPENDIX  C e
F  l ~ . 37 February I J, 1989 ELY-0019?
0955D gg- qz'f U. S. Huclear Regulatory Co~sission Region 11, Suite 2900 101 Marietta Street H. V.
Atlanta,            GA  30323" YOGTLE ELECTRIC GEHERATIHG PLANT - UNITS 1 an~ 2 OPERkTIHG LICENSES HPF-68 ANO NPF-79 GEN.RIC LE>>EP. HO., 88-)4 INSTRUMENT AIR SUPPLY 5      te,.    < "L .". Arr g t tN    Art. ) t ELAN      tOUIPMEHT Gent 1 emen:
Generic Letter 88-14 requested that each licensee/applicant revie~ NUREG-1275, Volume 2 and perform a design and operational verification of the instrument air system. k response to this generic letter ~as to be submitted to the NRC within 180 days.
Attached is            a  response to the identified concerns of NUREG - 1275, Yolume 2.
The revims and/or inves igations indicate tha. the design, installation, testing, operation and mainterance of the instrument air systems at Plant Yogtle are adequate to ensure the proper and reliable operation of pneumat ical ly-opera ted, sa ety-related equipment.
If you      have any questions,              please advise.
Mr. M. G. Hairston,                III states      that he is a Senior Yice President of Georgia Pobder Company and is                authorized to execute this oath on behalf of Georgia Pomr Company and that, to the bes of his knobdledge and belie', the facts set forth in this letter and enclosures are true.
G=QRGIA POWER COMPANY
, t'sf.    .s By:
ss s ~
r s;.                                  N.    . r!a>rston,  i ii Suorn so end subscribed                    be, ore  sne :his ~7      - deX    of Februsr/,
VM/i jb    .
 
13-MS-A20 APPENDIX  C ELY-00197 Page e
 
==Enclosure:==
 
cc:    Georoia Pover Cornanv Hr. P. D. Rice Hr. C, K. HcCoy Hr. G. Bockhold, Jr.
GONORH5 U.S. Nuclear Reaulatorv Coraission Hr. H. L. ms-, Act>ng ec>ona i Administrator Hr. J. B. Hopkins, Licensing Project Manager, NRP. (2 copies)
Hr. J. F. Rogge, Senior Resident Inspector-Operations, Yogtle
 
13-MS-A20 APPENDIX  C YOGTLE ELECTRIC GENERATING PLANT UNITS 1 AND 2 RESPONSE  TO G:.NERIC LETT R  88-14 G.L. Item 1:      Verification by test that actual ins          rv~ ' a r quality ns.rvmen.            lit is con-sistent xith the ranufac urers'ecommendations for individua A. Action Plan:
Verify the Instrument Air equal-ity from perfor.>ance of              re-o pre-operational test procedvres.
: 2. Periodic verificat>on,during perfo,        .~nce of preven ive r~ intenance      (PH) tasks associated with the Inns rumen t Air System.
3    Select sample points and conduct ai.'itional in-plant testing to measure actual instrument air quality.
                      'C Veri,y      diesel generator air start    system    air quality from preoperational test procedures..
B. Resoonse:
Tes.ing of'nstrument air system air            qua li:y has    been en accomp  1">shed h  as fo1 1ows      a  Y".GP:
: l. Testing ac <v>ties during the per ormance of preopera tional test procedures consisted of verifying the air quality (moisture and oil content) immediately downstream of the af'terfilter for each set of dryers and at the end oi selected feeder lines. This testing was acco'plished in accordance with the YEGP stated position of conforr>ance to Regulatory Guide 1.68.3 which is provided i FSAR 5
                    . 8.4.2.      This statement of conformance corr.i "ed VEGP to meeting the quality requirements of ANSI/ISA 57.3-1975 for verifying moisture and oil content and no'.e th at veri-
                      .ion o particvlate size at the end of each feeder, line is no. considered necessary at VEGP since "he YEGP instru-r>. n'ir      system design is svch that instrum n' fil:ere at the dehumidifier and at each instrument (by a n  air is local    fil  er/regulato-) in accordance with individual ins.rvment manufacturer's requirements.'o meet the requirements of ANSI/ISA 5?.3-19?5, the acceptance criteria for raximum al]owable oil content wa es abl '
p . ( <<) and.t.,e rsximu.",. a>lo~. ble moisture content was established at -15oF dewpoin. at line pressure (see FSM Sec.ion 9.3.1.2.2)    .2). The results of the preoperational test-ing o, instrumnt air quality are tabulated          .e i n T a bl es 1 and These resultu ts show that preoperational      testina verified that the instru.men. air systems for both uni:s mee: the r>oisture and        oil con.ent requirerents of !N5'/ISA 57.3-1975.
 
~O 0
~li
 
13-MS-A20 APPENDIX      C ESPOHSE        TO GENERIC    LErrER 88-)4 rage iodic verification during per or ~nce o~ PH
                    , p tasks consisted pr'imari)y of verifying the air qua                      lit y and oil content) imediate)y doxrstream of the afterfilt r for each set of drryers. Yerificaticn of moisture content (dexpoint) at the end of a representative feeder ) ine has also been performed on eight separate occassions.                            The PH .
acceptance criteria for raximvm a))oxable oil c t t i ppm (x/x) and maxir."u". a) )oxab)e moisture Th          1  t      f th'H o    conten.        has    consistently      been  verified to    be 0    rrr  a found to exceed the PH accep-a  o    -      . 1n  these cases      c orrec ive maintenance xas t yp ica          cally required to restore the dexpoint o ess than -60oF.                Vhi)e thee d expoint has been fovnd to e    ~    acceptance criteria in several instances typically due to a ma)funct'ioning solenoid va lve as"ociated dryers), the dexpoint has s              ill  consistently been verified to be less than the MSI/ISA S7.3-)975 reqvirement ne pressure.        This demonstrates that the YEGP instrument air system design is such that high ua .ty                      1 vnctionlng        system      ccmponent.
Yerificatjon off p arti culate size has not been performed                          as a part o, the PH verifications of instrument ai
                          . on has not b en considered recessary for th e
                                                                    ~
same  re~son as stated previously    r              for not performing such ver fication during the preoperationa) tests for the instru-ment air sys em. Hoxever as a par o f th e 'nspections
                            ~              ~
per.orated per PH checklist SCL00285 "Yalv                  a ve / Damper Stroke the local a      air filters/regulators for approximato)e v . sa,ety related air--opera.ed .valves xere inspected'urin'ng the                  ~ e Unit I erst re ueling outa        . g e ((Fall a    , 1 9SS). These inspections ver        i-a      no c eaning or replacement of the aairr i ters, vas    fil required. Yo g t)e Elec            ectric Generating Plant cons iders tha t pe- od i c inspec ion and c ea ninng or rep)acement as necessary 1
ese      oca air        filters for      each  safety re)ated      air-operated      component          is  an  appropriatee    methoC me    o    o  ensvring that
                . a    r quality is raintained consrstent x> th the r<nu f actur ers'            eco~..~a'o such suc    periodic'nspections                is discussede    1 a.er in this response.
~ Additional inp)ant testing of the operatin System consisted              of verifyin th nstrument air feeder lines. The results of this testing are tabv)ated in Tablee 4 . These results shox
 
13-MS-A20 APPEHDTX C RESPOHSE    TO G=HE~)C    LE~    R  BS-)
age o that thee o'.l o~~ content and dexpoint xas again verified to me the requirement. of ANSI/ISA 57.3-197". Thiss testin                est ng, com-bined xith:h      .he periodic PM measurements of air quality, is considered as sufficient for reveri,ying the air. qua)ity testing results of preoperational tes'-"KB-0) f n t .        The air quality testing results of preoperationa                    1 test 2-3KB-0) for YEGP Unit 2 are still considered current.
and therfore reverification of'hose resvl-ts is not con-sidered necessary at this tine.
Yogtle Electric Generatin g P an( concludes that the above testing has een su ficient to verify that actual instrument air system air h the  rznufacturers'ecornendations                  for n  v ua 1 components served.            This conclusion is made based on a rev  ex that was conducted oof the manu,C acturers'iterature associated individual air operated o            components.      This-reviex indicated that e  certain recorrzndations, such as 'filtered " "dry "
free " havee bbeen made C or the supply a ir, quantitative a ir quality requiremen s have not boen specif ed. Th                        bo      d veri, ed moisture and oil content to be                  consistent        xith the quan-titative requiremen.s of AHSJ/)SA 57.3 1975            -          and      the ins s  ni 1) vel i ied particulate si-e to be acceptable or instrument. air as supplied to the individual components. There-fore, the instrument air system air qua)ity is considered as bavin en veri, ied as consistent xith the rwnufacturers'ecoin ndations.
Tes.inc o, air quality for the diesel generator air start system has also boen accomp)ished for YEGP Units                                          P diesel g      ..        air  s.art  system    xas 1
supplied by and 2. Th e V~G Transamerica (Hote: YEGP diesel generators are also Transameri'ca De)ava)) and Delaval.
consis:s o txo separate co+ressed air systems or. trains per d eac      individua) train consisting of one suction                    filt
                                                                      . on i ter, com-pressor, a.tercoo)err, aa'.r dryer, and air rece i ver. Doxnstre am of y- ra ner/fi)ter for removing particulates dni tolib urther  downstream. filters exist for the starting air s r utor and for the engine control                  anel.
r er a for the th YEGP diesel air start system has been es.a~ s ed as 50oF at system pressure .(see FSM Tab)'e 9.5.6-)).
This dexpoint criteria xas established ba d                            h
: o. .he air start system, the ',act that the ai n . ~ and <50 psig, xhich raises the dewpoint, and the minimum diesel generator room design temperature o 50o".                  '
                                                                      .      P reoperationa  1 tes. procedures          1-3KJ-0)    Diesel  Genera        T
                  '+ ' '1-3KJ-02 ~'Diese) Generator Train B 5 ar S'
Sys em (Unit 1;,
          ~  ~ ~
ing Air Sys.e...    (Uni: 1)., 2-3KJ-01 Diesel Genera                  T ys.e~ (Uni: 2), and 2-3KJ-02 Diesel Genera. or Train 8 Startino air contained in each receiver. The re veri. ication of dexpoint are tabulated i n jab>e . These        '.
Ai Sys.em (Unit 2) included a verif ica:ion of dexpoint for s:ar.in ressu )''.s of thi s preopera t iona) h'.
h    resu):s
 
13-HS-A20 APPENDIX  C RESPONSE  TO G=- NERIC LETTER BS-14 rage  4 shox. tha: the, de+point acceptance criteria xas net for all but the
    .I.'o. 2  air start train for the Unit      1 P" diesel. After replacement of a bad condenser fan ro:or and recharoing the dryer xith refrigerant, this air start train xas also verified to neet the dexpoint acceptance      criteria.
Testing of the diesel generator air start system for particulate and oil  content is not considered necessary due to the system design xhich includes the previously mentioned y-strainer /filter and doxnstream filters. Transamerica Delava1 (nox IHO Delaval) has specified the exact filters to be used in these applications. These filters are periodically inspected and cleaned or replaced in accordance with the generic aaintenance recornendations developed by the Transarerica Delaval Oxner's Group (see Appendix 11 of the TDI Diesel Generator Design Reviex and Qua'lity Reva'lidation Report-YEGP:      Note: This report xas previously submitted to the HRC). The YEGP program for performing these periodic inspections is discussed                    ies in more detail later in this response.
A  review xas conducted o, -Transamerica Delaval recornondations and of the recommendations developed by the Transamerica Delava1 Oxner's                      "ated Group. This .reviex indicated    t that mantita:.ive air quality                          ure requirem nts have not been specified for the diesel generator air                      I s art system.        Therefore, YEGP considers that the air quality testing              :lons per,ormed during preoperational tests 1-3KJ-01, 1-3KJ-02, 2-3KJ-01,                      ll and 2-3KJ-02 xas suf icient to verify the air quality oi the air star. systems for, Units and 2 consistent xi h the 1
                                                                              'iesel r'znufacturers'ecornendations.
I.em        Veri,ica.ion ha ra intenance practices, emergency procedures and  training are adequate to ensure tha. safety-related equip-ment  vill function as in'.ended on loss of instrumen air.                      al A. Ac.ion Plan:
Evaluate current rr~intenance programs and practices to deter-                      1 mine overall adequacy for components x',thin the scope of the                      il generic letter.                                                                    ~ve
: 2. Reviex plant procedures desioned        to mi:igate the  e  fects      o a  loss of instrumen'ir.
ry
: 3. Reviex the .con ent and scope of raining programs for                                -C adequacy in the area of required response to a loss of                                s instrument    air.
3
 
13-MS-A20 APPENDIX        C RESPOHSE    TO    C=. HERIC LETTER                              88-)4 rage ins rvment afr fs not available. EOP 19002-C Rev. 6, includes a note prfcv to St                                              '*'oiooxn,"
4 t ig .hat r~keup to the vo)um control tank fs not possible xithou fnstrumen afr available                                                    At                                      h oF EOP )&C30-r            Stea.". Genera'.or Tube Ruptvre," Rev. ?,                                                                                        ro-vides instructions for establishing c h arg f ng flox without run air available and appliess too .ep ins .rument procedure.                                                                  r S'2                                        o                that The    t yp es of procedural controls as discussed above are con-sfdered adequate for ensuring that safety-related afr-operated corn p anent      n s w>)) function as intended on loss of
: 3. Training
                                    'i Current trafnfn g for 1 censed operators includes lesson plans, 1        instr uct iona units, and simulator exercises as 1
i ol )oxs:
LO-'LP-,02) ) 0        'cService      and                          Instrument Air
                            'Start Air                                                        Systems'O-IU-021)0-001 p,
                            "Respond        too jns            'n rumen Air Syste".
Compressors'O-IU-02110-002 to Service 7 fr Sys er, A)ar's
                                                                                                                                          'lar;s'-003 "Respond LO-'.U-02))0-00'espond to a Loss o; Instrv:ant Afr to Conta fnment" LO-SE-60019                RHR  Operations Kith Ha lfunc.fons" LO-'SE-60023            'Coo)ant h Feedxater Loss of Instrument Air LO-IU-60321--001 "Respond to Loss o Instrument Air'esson Plan LO-LP-60321 fs based on .abnormal operating procedure (AOP} 18028-C and Hc)u"                                                t detect a loss of instrument airr, response                                  r            of            critical                                        components ss o      nstrvnent        air,                        hox to compensa e                                    for cer ain cri ical      components      ass'umin g                          failure po ion                                                  ic
        - -- 0019 introduces a loss of instrument air dvrin o associated        ith plan shu doxn (Hode 5'nd                                    }    d                  '.1 n ro vces a          oss of irstrv.                      ,s rvment air. during poxer opera .'io (H o d e '}  i}. The operator is' expected                            ex ec                              to uti)ize the 2 -C for res p ondin                                    to both sfmu,lator exercise scenarios.
Current training for non-)icensed operators                                  o              includes lesson plans and  n  i ns.ructiona) vnits as fo))oxs:
HL-LP-02201                      Service and Instrument Air Systems 0<<side                      A ea  Opera                              or'
 
13-HS-A20 R    PONS    TO    G  NERIC LE~"R gg                    14 Yage b HL-LP"02301                      "Serv f ce and Instrument Af r Syste"s-Turbine Building Operator" NL-IU-02301-00-001              "Perform ServfcejInstrument Afr Start-Up Inspections" HL- IU-02301-01 "002            "Operate Air Dryers" HL-IU-02301-01-0          3
                                ~
Bloxooxn Mofstvre Separator Drain Traps an B
Afr Receivers" H L- IU-02301-01-004              Cross-Connect Unit Compressed Air Syste s" HL- IU-02301-01-005            'Restore 'Instrument Air to Turbine Building Folloxing HL- IU-02301-00-006                          Serv f ce Air Fol 1 oxf ng Isolation" Isolation'estore HL"IU-02301-01-007                Check Proper Operation of Rotary Air Compressor" NL-IU-02301-00-008                Chececk Proper Operation of Reciprocating, Afr Co~ressors" NL- IU-02301-01-009            "Check Operation o                        Hester Energy Conservator HL-LP-02401      "
                                "Service and Instrument Aft Systems Au"iliary Building HL-LP-53112                                        to Valve                  Ac  uators Operator'ntroduction NL-IU-53112-00-001              'Verify Poxer-Operated                        Ya  lve NL-'LP-531?0                                        to Basic                  Air Co~ressors"            Operation'ntroduc.ion NL-LP-02201, HL-LP-02301, and HL-LP-02401                                    r enti ica ion        o  r~jor air-users ex ecte nis io    a loss of instrunen                          air d
t HUR c. 6-12?5 sftfze the
  .e    nstrument t
Yo Th d'iscussfon of industr based on events described b y HRC Information Notice 87-28 ol. 2, and SOER 88-01 and is inteen ded to p lant e ~fpment i          operator to the inpor.ance of air system and to problems xhfch could occur event t sen-nstrunen      afr qva 1fty is alloxed to degrade.
Curren. training for maintenance personnel        erso                      includes Lesson Air Opera or Hain enance                              xhich is pro" e    to mechanicalcal raintenance personnel and GE-LP-1251 6, "Service and Instr  nstrunen Afr, xhich is provided 'io h C personnel.
HE-LP-10003 provides training on thee basic              asic purpose          ur o                                          and principle o opera.. )on        on oof aaiir operators, various                                                                  es o ir ir operators, gen ra 1 rafntenance e practices air                                  .                ra                        for trovble-o~n rec anical and o p erati.ional cause o,                                                                          ir "ures,      and    includes a revi m o, HRC In o                                                                .  .ion Yol. 2, and SO=R 80-0 si    e  the need to prevenn d egra d ation      ' of the in s cerumen                                                                a ir system by      alloxing forei .ore gn raterial        such as                  oil', xater tenance.                - 251'6 provides GE-LP-1251'6        prov i      training                  on the purpose                                            of
 
13-MS-A20 APPE>RADIX C RESP0"SE  To ~HERIC LE)E'ER 88-14 age the instr'ur)ont afr syste" na)or co~nents,            unc fons and floxpath, eaphasf:es that significant problems have occurred at various nuclear plants due to the conta)-.fnatfon of instruwn afr and ins ructs the s uden to observe for conta~ina fon A)le,per,or ing cafntenance on the fns            ruwnt air system or co yonents serviced by fnstru~nt air..
The above    described training for licensed operators, non--
licensed operators, and maintenance personnel has been r vfexed against the recccxzndatfons of hUREG-1275, Vol. 2, and revised xhere appropriate to incorporate those recorrwn-datfons. This tra'.ning fs considered adequate for ensuring that sa ety-relat.d equfprxnt xfll func )on as intended on loss of fnstrumnt afr.
G.L. Ite".- 3:    Yeri, icatit on .ha ~ the design of'he ertfre instr .".~nt afr system includ'in g air or o.her pneumatic accu.",.ulators fs in accordance e
xfth fts intended,unction, including verification by test that afr-operated, safety-related co;..ponents xil1 perform as expected in accordance xith all design-bases events, including a loss of the norm.l instrument afr systen.      This desion verifi t should include an analysis of current air operated cor)ponent failure positions to verify that they are correct for assuring required safe.y functions.
A.  'Ac.ion Plan'.
: l. Iden" ify, by reviexfng plant design docur)enta ion, the sys e~ and co~onen        level safety design bases.
          .2. Create    a lis  of all sa>ety-related  co)"..ponents  xi:hin  the scope  of the generic letter.
: 3. R'eviex the testing that xas performed for each safety-related cor7onent xithfn the scope of the generic letter.
4,  Schedule    any  additional safe.y-related    co)"ponen    testin es.ing required.
B. Re>Roose:
Sa. ety-related active ins.".ur)ent air use. s for YEGP Uni:s        1 and  2 are tabulated fn Tables 6 and 7.        The curren. failure position for each of :hese co..-"n-." .. '~s in '
ec e aca ins:
t)>e .=Sn&#xc3; t A Tables and/or design calcula+io s
                        ~
          )he curren. failure posi:fons for these co)-.,ponents xere verified to b cor'rec. for assuring the required safety func ions
 
13-MS-A20 APPr.NDTX C RESPONSE    TO G NERiC L T) ER        88-14 rage Nit>l exceptions as no ed below, loss o, fnstrune              .r n t a r pressure perfo~d for the conponents listed fn Tables 6 and 7 during cons:n>ctfon acceptance testing for each unit. The air-operated valves l,fsted in Table 6 were individually-tested fn accordance with construction acceptance test CAT-H-04 '"
p      t d Yalv s. The air-opera.ed danpers listed in Table 7 were individually tested fn accordance with CAT-H-07 "HYAC Pneu=atic 0 crated Dan p er s.              This tes fng was perforned to meet c YEGP stated position of conformance to Regulatory Guide 1.68.3 which fs provided in FSAR Sec.ion 1.9.68.4 ~ 2                    ~
Loss of fnstru~nt  r mnt afr pressure testing performed per CAT-H-04 consis ed of placing the valve opposite to its f fl-position and then            ver f fyfng the valve properly nerved en ve                                            e    io f t s fa f 1-to saie posi fon on slowl y bleeding off the afr from the actuator an, as appl icable on suddenly venting the positfoner or co-                                  n-pp y p  rt  to  atrosphere.        Loss    o>  instrument          afr pressure tes fng performed p r CAT-H-07 consfsted of placfng-the das".per properly raved to            fts fail-safe positionn            on sslowl  ow y reducing the          air pressure to      the actuator.
The      rzfn feedwater isolation valves (f.e., valves                    'tHY5227, lHY5228, lHY5229, 1HY5230, 2HY5227, 2HY5228 2HY 2
              ) were not CATH-04 tes:ed.              These valves are    r hvd  y rav      lic es  but recufre a source of air to perfor, their sa ety unction in tha: air-operated pilot valves ha                                t o a feedwa er isola ion si "nal              o allow the fiow cf ydraul fc fluid to the appropriate side of the hydraulic iston.
                                                    'ervoirs            and instrument afr rease .
y pp  <<    instrument air pressure is e YEGP HFiY's are the sane valves as those des-cribed in NRC in oration Notice 85-35 and wnfch are used as nafn stear: isola fon valves at Byron Unit 1.. Foilowfn of No ice 85-35 the YEGP H"iY'          r      s were rndf fied by replacfn                    thee air check        valves  with  those  of  a slf g htl. y  df >  erent    design.          The ah i i t of 1      o  th ese air, check valves to seat on a gra          grad ua i oss of 1
su pp lied i ns.runent afr pressure and to herefo e                            t i, lit abi        y  of  the  K<<iV's  to  perforn    their    safety    func  ion    is periodically verified in accorCance with testing performed er Procedure 14850-1 (14850-2) 'Cold Sh u td own Ya ve Inservice Test." 1 Thiss testin T            es. ng is considered adequate verification for thee                        HFiY's l 's required by the Generic Le :er.
ampers AHY12479, AHY12480, AHY1248l, AHY12482. IHY1250'.
1HY12605, iHV12506, 1HY126G7, 2HY12604, 2:--",".~':5.
                          - p a eC Campers, but are also equipped wl >. h an in',latable bubblee tigh seal.                    A source of air is ensvred        vre b y a reserve air s.orage                                ins.
tank and an ins.rvnent            air check valve for each Carper.            A CAT-H-07 tes. was performed for                    h Ca~per s mich verified tha. each proper 1
 
APPE'ADIX C'3-i~fS                                            -A20 RESP"-HSE TO GENERIC LETTER                SS-14 Page
                      'l CAT-H-07 does not
                '1          e bv    bb'a fnclvde confirm "on le tfgh sea'.ls. There, ore 'YAO's xi 11 to perfor testing tha conff~ the proper o era'io eals on loss of fnstmuent afr These be    s the tes ing of the inflatable bubble ti h. sea It could      not    be      verif fed that        Yalve 2HY12146, 2HY12147, 2HY121                    2148, and 2HY1214                  had been      tested t  ese o con            r that the y mv    pove to their proper posf fon pt of    a  Control          Room      Isola fon applicable)                H'40's xi 11 be issue      sued to per;om additional                          testing
                                          .e      o      corpleted by 1 September 1989.
The adequacy          o        the diesel generator              air start            s fng precperationa                1  tests 1-AJ-C5 'Diesel
                                ~ 'on,            oa      ejec ion, 5 Air S:arts, and                      35    C tive Starts'Unit                      1    Train A) 1-AJ-0 (
Tne    five air starts :est                    cons  fsted    o    veri contained su;                ficfent air                  'eceiver
                                                                    .ed air cor.pressor de nergized and    xith    the redvndant:                air receiver isolated from th e .di ese1              .          ~
g                        ered adequate verff,ication                    as  required by Use of safetty--r elated pneuwtfc accurvlators at                                          Y.
to air accu;.v)ators for the H"IY's air a dbi'1                "f
                                            ~ gh      d arpers eqvipped xith fnflatable seal
                    . e      esel genera..or air sstart                    s st .. a f r receivers.
ar system                                          The o            ese    accvrvlators to perfom their inn                          en d e d  func-on on    a  loss of nor."al su                  ''e supplied    air    p              u e  xas    veri, ied      as
'I G. L. I tea 4:
    ~                Provide      a        discussion of the            YEGP p ro  og ran          for o    r~            ing proper A. Ac.fon      Pla.n Revfex the instrument                      air  oval u    it.y        "
p roogram and            rake an. improve-B. Response:
Procedure        11M'-1 (118&#xc3;-2) 'Turbine Bui1 din re    fr~s the Turbine ""uf ldfn~                ng opera:or o er          o cho ck pref il                2  and
 
~CI 0
 
13-XS-A2O APPENDIX          C
                                            '0  'G~ 'i-'R IC LE      ~  i -"R  8$ -1>>''ag e
  -fterfilter differential pressure                                o                                                        l e ~ sture (dessicant-t              .-  ype)e.      indicator located on each blossom o to own the p ref i 1t er and af                                                C il    e    d    in I e~ o a r ryers, to blo~dcxn the                          . e instrumnt air receivers to                      the ce i s t ure separator drains and                                                  C h    k      d    bl    d        f th                    y                          p-                ng ese    nspections and bio&          lo&cxns are performed shiftly.
Maintenance      ce Pork  or Ord  r ers and jor Def icienc Cards are appropriate to resolve potential          po ent a proble"s identified during these inspec ions.
Preventive Haintenance (PH) standardi              s.an ardized checklist SCL00402 has na e to provide for periodical1 doil o                t'i        di  t]        dmstrean d
v'tely of the a"erfilter PH e
ifi or i
                                  >t    per f ns runent a r expoint and o>l content were re ects results obtained by repetiti e task 12'20006-001M-N.
b per;or-..~nce of this pre-Standardized PH checklist SCLQO~"2 h as been-originated vvide or a per iodic inspect ion of e y-related air-operated va.lve. lis
                                                  .'            'th  e.air.      f'1
                                                                                ~ i i
ters bl for to the r-
        ./                                                  ir ter per this checkl i be inspected for                  contairirants            such as o> i, ~a clogging or is physically dna                                d      If inspec ions described by SCI 00"'32 h as b' en es abli h respond to the in erv a ls o f o th er remiredd i...ec.                            i.. "
in                        ons    for the subject valves an                    ill and v 1 occur at either 24 36                                              r interva)s dependent on th e particular valve.
YE G P      considers the above describede                          nspections ins                                and bio~downs to be a suf.icient u  ~    c ent nethod to ensure proper air                                            ual'ua,ty is re    in-tained for the instruct              . uren. a r syste-.-.
Procedure quires          a
                    .11882-1 shiftly (11882 - 2)) 0 utside Areas Rounds Sheets" re-ceneral'.                c.ion c. the diesel generator ins p ection r-y .en air conpressors. . Main                      'en                            o              ; nd/o robl'er.:s iden-.',              "
n.i 'e d during            these inspec.ions.
                          "ed              ist PM
    ~
de    f'r periodlcacheckly per standardi                                SCL00166 has beon ornin a den                    .          ,              ..
e
                                                                                                                    . f air con-ai  n.aired in the diesel air s.art                                        system"" air receivers for bo h ;:ni's                I~  ~
 
13-'AS-A20 APPENDIX  C TO  <H~HiC LEl ic.R 88-14 age
~nspec  ion of the y-strainer/filter, starting air distributor
. ilter, engine con rol cabin t    fil er and the barring dev c r fo<<he    diesel generator air start syste~ is performed on an    'End-o;.-Cycle'asis which corresponds t o th e g .          n enance reco~ndations      developed by the T rans-amiica Delaval De ava  Sacr s Group. These inspe~iions are perfo~d per the instructions o'rocedure ZS714-C "EOC Diesel Generator Checkout and were completed  ie for or the    n t i ie Unit 1 diesels during the recentn~ Unit n    1 re ueling ou age (reference Y~'0's 8806319, 18806320, 18806321, and 18806322).
18806
'EGP considers th above described i nspe c . i ons to be a suf-c en rathod to ensure proper air quality is ~intained for thc oiesel generator air start sys m
 
0 0
I
~O
 
13-MS-A20 APPB.'RADIX C TABLE E~TI~ T~ ~01          1                (L".fIT I)
IX57ZPFM AIR /VALI..Y D'TE              LO  'TJQ(                            DEVOID        OIL CCXTB(T 10/30/86 Afterfilter    "A" Di scharge                        -60oF          0 ppe 10/30/86 Afterfilter    "8" Discharge                          ?2  F        0 ppn 1Q/30/86  Turbine Bldg. El. 195'                              -50oF          0 ppm 10/30/86          Bldg. El. 245'                            -60oF 22D'urbine 0 ppm 10/30/86            Bldg. Line                                48oF 270'uxi'1iary Q pal 11/1?/86 Auxiliary Boiler h Cooling                    T~r    36oF          0 ppa TABL. 2 PR:-CPERATIGKAL TEST 2-3KB-01 (UNIT                  2)
IX>T~T AIR QUALITY L~TI&                                  DBPQ I XT    OIL GKTEXT 06/04/88 After  filter  "A" Discharge                        -80oF          0 ppn 06/04/M  Afterfilter    "B" Discharge                        -SOoF          0 ppi"l 05/15/88 .Turbine Bldg. El. )":5'                              BOoF          0 ppfA 05/)5/88          Bldg. El. ~45'                              80OF 220'urbine 0 ppfA 05/15/88            Bldg. Line 270'uxiliary
                                                              -80oF          0 p ply
 
41 Cl
 
13-MS-A20 APPENDIX          C TASI    >>
                                          ~      ~~ (,T,)
IX5i~MfT AIR q" LITf LCCATICX                OEWOINT        OIL CGA@&#xc3;
  ]1/18/86 (1861976")      After, i 1 ter "A" Df scharc~e                  -SooF 03/15/S?  (18703110)                  il Af ter> ter "8" Discharge                        350F 06/29/87  (18705688)    After> fl ter "E" Discharge                      -4P'
. 11/05/87  (18?08997)    Afterfilter "B" Discharceg                        :6. SoF 11/19/87  (18708995}    Afterffl ter "A" Df scharge                      -BooF
  .'2/03/87 07/19/88 (1S71187?)
(188Q429?)    Aft>    ~''
After.ilter "8"
                                              'r" After, i 1 ter "A" Di s<" ce.              ~
Discharce Discharce BOOF OoF SQOr 0 ppm 0 ppni 07/26/88 (18804'61)      After>ilter "A"                    Discharce    -sooF          <1 pp After,il er "8"                    Discharce      Sooj          <1 ppm 08/02/88 (18804615}      Af ter>erfil ter "A"              Discharce      63OF          <1 ppm A'-erfilter              "Bi>    Discharce    -74"F          <1 ppm 08/09/88 (,18804802}      Af    er,ilter          "A"      Discharce    -68oF          0 ppm After.ilter              "8" Di'scharge        -?2oF          0 p pm>>
OS/16/~~ (188O5141)      After> il ter            "A" Discharge            Eoj          0 ppm A;          i l ter      "8" Di> scha rce        73OF          O,ppm I h    C  Shop      Line                    -SooF 08/23/88 (188O540O}      Af erfil ter "A" Discharge                      -?OoF          0 ppm A,:er >1 ter "B>i Discharge                      -78oF          0 ppm I h C Shop Line                                -BooF 08/30/88  ( 1880550?  )  Afterfilter "A" Discharae                        -Soo            Q pp~
Af er ilter "8" Discharce                    J
                                                                            -78o            0 ppm>>
I h C Shop Line                                  -SQoF Q9/06/88 (18805661)      Af erfilter "A" Discharce                          BooF          0 ppm Afte~il ter "8" Di scharce                        -Sooj          0 ppM Con      rol Bldg. Level                8      -Boor 09/1 '/88  ( 1880 833)  'A'ter-.;',l ter "A" Di scharce                  -SOoF          0 ppm
                          +'t ~I    j>>~
                                          ~
y
                                            >> ~
I ~ Q>>>>  .,'rr'> )r.      SOcj          0 pram 09/21/83 (188060 6}      l%>>  I.e    ~    >> ~
                                                                      >>      Booj          0 ppm
                          ~ C
                                .er. i l:er        ""-" Df scl arce        -.Boo j        o ppm i  h C    Shop      Line
 
13- MS- A20 APPENDIX      C TABLE 3          Continued)
W  CmCXS        (mIT    1)
INSTR'~            AIR QJ'LIT<
DASH  (~                              LGC'TIN                        DF ~POIh 7      QIL Ct:XTeX Qa /27 <<BS ( zoo, ~
                    <<  '7)  After ilter "A" Discharoe                        -6?OF            0 ppn After,ilter "8" Discharge                          ?Qor"          0 ppril.
Control Bldg. Lev~! 8                            -7? Or 10/0'/BS (18        o273)    Afteri i-1 ter      "A" D'ischarce              -71OF            0  ppn Afterfilter        "8" Disc>larce                -71OF            0  ppn>
10/05/88 (18806475)          After, il ter      "A" Discharge                -soor            0  ppn>
Afterfilter        "8" Discharge                -SGOF            0 ppni Control Bldg. Level 8                              sooF 10/22/BS (18806?27)          Afterfilter "A" Discharge                        -68O=            0 ppn Afterfilter "8" Discharce                        -68or            0  ppn>
10/2o/88 (18806oos)          Afterfilter "A" Discharce                        -68OF            0 ppril Af terf i 1 ter "8" Di scha roe                  -68OF            0  ppn<<
11/l 5/BS  ( 18807138)      Afterfilter "A" Discharoe                          2ooF            0 ppril Afterfilter "8" Discharce                        -20OF            0 ppni 11/21/88 (18807315)          n....    '
                              ) l>>~>>C i'<<er      e  a
                                                  ~ Di scharae
                                                                              -2OOF            0 pprrl A- ter-. <<1 er "8" Di schargo                    -20OF            0 ppm 11/2o/BS (18808a4}          Af erfitler "A" Discharce                        -soar"            0 ppril Af er. il ter "B><<Discharge                        Boo>>          0 ppn 12/O6/8"  ( 188OS38 5 )    After;ilter "A" Discharae.                      -8OoF            0 ppn, Afterfilter        "8" Discharge                  5oo            0 p pril 12/16/88  ( 18808653)      Afterfilter "'"            Discharce            -76OF            0 ppn A'erf i 1 ter "B" Di scha rae                    -61OF            0 p pril 12/20/BS (18808654}          A, terfil ter "A" Discharce                        6ooF            0 ppn A, erfilte. "8" Discharce                        -60oF            0 ppiil 12/27/88 (18808655)          After;ilter "'" Discharce                          6loF            0 ppn A terfil er "8" Discharg-.                        4 3or>>          0 ppril 01/03/89 (.18808854)        >
f te fl 1 -er C ~
                                                                              -46OF            0 pea e te . fl 1 t e t
                                >                  8 0 l s c i"ia r c <<'.
22or          0 ppn Ol/IO/So (18808g66)              terfil ter ",'." Discharae                    8Qo>>            0 pon
                            ', te. fil:er      ""-." Dl SCharae              -BooF            0 p
    ."...wasure~nt of    oil con.er    ~  ~as      -" le~n i-,.-'        eC    n >>Gv
 
13-HS-A20 APPENDIX    C Vg~c    4, SPECIAL TESTING        (Unit. 1)
INSTNPEXT    A Iil  QMLITl'~
f 18900&3)
L{KATION                                        OIL COiYEKT 02/03/89      Turbine Bldg. Level 1                              800F      0 ppa 02/03/89'      Control Bldg. Level B                            -80  F      0 pp1i 02/03/89      Auxiliary Bldg. Level D                          -BOoF        0 ppi"il 02/03/8o      Diesel G nerator Bldg. 1A                        -80oF        0 p pixel 02/03/89      Diesel Genera-or B'idg. 18                        -80  F      0 pplh TABID  5 DI:SSL 6:-R:-RATOR AIR START SYSlcN AIR ANALITY PREOP TiSTI46 OAr,    pR=op                      AIR START  TR'N                          D APPOINT ll/03/86  1-3KJ-0!                1- 2403-G4-001- K01                77oF          48 3oF 11/03/86  1-3KJ-01                1- 2403- G4-001- K02              77oF          48. 2oF il/04/86  1-3KJ-02                1-2403-G4-002-K01                  79oF          49 ]oF 11/04/86  1-3KJ-02                1-2403-G4-002-K02                  7ooF          61. 9oF 10/06/87  2-3KJ-Ql                2-, 2403-G4-001- K01              77oF          41. 4oF 10/06/87  2-3XJ-Ql                2- 2403-G4-00!- K02                77oF          4'2. 4oF 10/!3/87  2-                      2-2403 G4 002 K01                  6"-or          36. 3oF 3KJ-02'-3XJ-02 12/!1/87                          2- 2 '03-G4-002- K02              7!oF          40oF
 
P. ~Wi~~
13-MS-A20 APPENDIX C TABLE 6 SVCTlRD IN~i~      AIR USERS ACTIYE YALYES-  -
AIR FILTd'.
YALYE                      KGEL      Slc=(H  FHV, FSAR RrF            P05ITI
          }HY}300c          FISH" R      P5Q5        50    FHEA-FSAR                CLOSED 2HY}300cA                                        TABLE 10. 3. 3-1 1HY130058        FISHER      P595        50    FH:"A-FSAR                CLOSED 2HY 130058                                        TABLE 10.3.3-1 1HV13006A        FISHER      P5Q5        50    FHEA-FSAR                CLOSED 2HY}3006A                                        TABLE 10.3.3-1
          )HY130068        FISHER      P5Q5        50    FHEA-FSAR                CLOSED 2HY}30068                                        TABL '10.3.a-)
          )HY13007A        FISH.R      P5Q5        50    FHEA-FSAR                CLOSED 2HYi3007A                                        TABL 10. 3. 3-1 c          1HY 13007 B 2HY130078 F I SHER    p5Q5        50    FH=A-FSAR TABLE 10.3,3-)
CLOSED
          )HY}3008A        FISHcP      P~Q5        50    FHEA-FSAR                CLOSED TABLE )0.3.3-)
2HY}3008'HY130088 FISHER      PSQ5              FHEA-FSAR                CLOSED ZHY130088                                        TABLE 10. 3. 3-1
          ) HY760&~        CO'(OFLOA    FH-20        35    FHEA-FSAR                CLOSED 2HY7603A                                          TABLE 10.3.3-1 1HY7 6038        COiROFLOM    FH-20              FHEA-FSAR                CLOSED 2HY7 6038                                        TABLc 10.3.3- I 1HY7603C          CONOFL04    FH-20              FHEA FSAR                CLOSED 2HY7603C                                          TABLE  )0. .3-)
(Con;)nues) l
 
0 0
0
 
13-MS-A20 APPENDIY        C TABLE 6        (Continued}
SArt.l I)ST@'~
                                        -~lc9 AIR USERS
                      -ACTiYE          YALY.S-AIR FILieR VPLYE    Yc.",OOR    KGE'IL(H                  RB-FSQ      R:-F.
1HY7603D COHOFLOV        FH-20                35  ,FH- n" FSnR            CLOS 2HY?6030                                            TABLE 10. 3. 3-1 1HY5280    F ISHER        6?nFR                      FH~-FSnR                CLOS 2HY5280                                              TABLE 10. 3. 3-1 1HY5281  FISHER          6?AFR                40    FH~-FSnR                CLOS!
2HV 5281                                              TABLE  10.3.3-1 1HY3502  F ISHER        67nr R                    HO'ii                  CLOSE 2HY3502 1HY8823  FiSHER        P-594-1              40    HONE                    CLOSE 2HYSS23 1HYSS24  FiSHE?        P-594-1              40    HONE                    CLOSE.
2HYBS24
'.HYBS'3  COHO-'4        FH-20                      HO'ii 2HYBS4 3                                                                      CLOSE.'LOSEt 1HY 8881  COHOFLO'4      FH-20                      HONE 2HYB881
                                /
1HY27 901 COMOF L(N      GFH20XT1782          35'ONE                        CLOccT 2HY27901 1HY887 1    I SHER      P594-1                40  HONE                    CLOSEC 2HY8871 1HY8954    F I SHER      P59>>    1            40                            CLOSiD 2HY8964 1MY~~~    Fi SHER        P594-1                40  HOH.                    CLOSED 2HY8888 1HYBSSO                                              HG.":=                  CLOSiD 2HYBBSO 1HYS1  "0  COHOF LO'x'    FH-20                                              CLOS-"0 2HYS160 lHY8152      USHER        P 594-  I                  IiOI ~
CLOSED 2HYS'
( COO  w iilVGQ )
 
13-i6-A20 APPENDIX    C TAB>~ 6 tC        t;~n~)
: c. I a-IXSTrr3RDfi AIR      USc,PS
                      -  -ACTIYE    YALYE5-  -
AIR FILTiR YH.Y:-                KGEL            SIN(P()  ~FSAR      Roc        PGS Ii 1HY8825  F I SH""R    P-594-1            40      HONE                    CLOS 2HY&o2 1HY8890A  FISHER        P-594-1            40      HONE                    CLOS; ZHYSG90A 1HYo&908  F I SH. R    P-594-1                    NONE                    CLOS!
ZHY8890B 1HY8033  COHOFLO'ii    FH20XTKXGBI        35      HOli".                  CLOS.
2HY8033 1HY8047  COHOFLO'ii    FH20XTXXGB1        35      HOH.                    CLOSE, 2HY8047 1HY8028  CO"0 LO      FH20XTKXGBI        35      HOH=                    CLOSc.i ZHYSO28 1HY 3513  FISHER        p>o5                        HO'i-                  CLOS' 2HY351'3 lYYZ514  FISHER        6/nc R              40      HONE                    CLOS".D 2HY3514 1HY3507  FISHER        P595                50      HON"                    CLOSED 2HY3507 lHY3508  FISHER        67AFR                      NON""                  CLOSc.D 2HY3508 1HY5278  FISHER        67@FR              40      F".EA- FSnR            CLOSc.D 2HY5278                                            TnBLE. 10.3. 3-1 1HY5279  FISHER        6?nFR              40                              CLOSc,D 2HY5279                                            TABLE  10.3.3<<  I 1HY7699  COHOFLOA      FH20XTXXGBI        <<5    NONE                    CLOSc.D 2HY?699 (Conti nveC    )
 
13-MS-A20 APPENDIX C
      ~
    ~
TABLE 6    (Ccnt1nved) t INSTR'~W AIR US~
                                  -ACTIVE YALYES AIR FILTER YAL~E    YEGG                KNEL        5 I c" (M)  ~-F~~        REF.      POS I
)HY?80  CONOF LOP        GFHZOXT1782      35        NON"                    CLOS!
2HY?80 1HY781  CONOFLO'4        GFH20XT1782      35      'ONE                      CLOS:
2HY781 1HY? 126 CONOFLOA          FHZOXTKXG8)      35        NONE                    CLOSE ZHY7)26
)HY?150  CO'i0"LOP        FHZOXTKXGB)      35        NONE                    CLOSE ZHY?i50 1HV9385  CONOFLQ'4        GFHZOXT)782      35        NONE                    CLOSE ZHY9385
) HY93/8  FiSHER            6? AFR            40        NONE                    CLOS:.i 2HY9378
)HY)5)98                    GFHZOXT'1782      35        F  "n-FSnR              CLOS".2 2HY15)c8  CONOFLO'x'ONOFLOM TABLE 10. 4. 9-4
)HY15197                    GFHZOXT1782      35        FMD-FSAR                CLOSER 2HY)5197                                                TABLE  10.4.9-4 1HY)5)aa  CONOFLO~          GFH20XT)782      35        F.. A-FSAR              CLOSED 2HY)5199                                                TABL 10 4 '    4
)HY15)a6  CONOFLOM          6FH20XT)782      35        FMEA- FSAR              CLOSED 2HY)5196                                                TABLE )0.4.9-4 lCY9446  FiSHER            67A F R/6?F R    40        NONE                    CLOSED 2CY94'6 lCY9447  FISH.:R          67nFR/6?FR        40        NONE                    CLOSED 2CY9447 (Conti nved) 4
 
13-iiS-A20 APPENDIX  C TABLE 6  (Continved)
IKS>xUMCf hIR USERS
                                      -hCTIYE YMY~      -
hiR FILTiR KGEI        S I &(H  FYM-F~e'EF iHY8145            FISHER      P-594-1          40    F I G. 3. 6. 1-1        CLC 2HY8145                                                (SHEET 25)
  '1HY1 521          FISHER      P595            50                            CLC 4'HV15214 1HY10957          CONOFLOM    GFHZOXT1782      35                            CLO.
2HY1095?
IHY109~%          CO'tOF LOV  GFHZOXT1?82      35    HOhE ZHY10953                                                                        CLO.'1HY.i 5212A        FISHER      P595            50 ZHY15212A                                                TABLE    l0. 3. 3-1    CLO'LOS IHY15212B          F I SHFR    P595            50    FHEA-FSAR 2HY15212B                                                TA"LE 10. 3. 3- I 1HY 1 521 ZC        FISHER      P505            50    F    A F SAR            CLOS 2HY15212C                                                i~aL    10.3.3 I lHY15212D          FISHER      P595            50    FY:-~- F SAR            CLOS:.
2HY'52.'20                                              TABLE    10.3.3-1 1HY15215A          FISHER      P595                    FHEA-FSAR              CLOS:
2HY'.5216A                                              T'BLE 10. 3.3-    1 1HY15215B          FISHER      P595            50    FHEA-FSAR              CLOSE, ZHY15Z16B                                                TABLE 10. 3. 3-1 1HY15216C          FISHER      P595            50    FHEA-FSAR              CLOSE 2HY15216C                                                TABLE 10. 3. 3-1 lHY152160          F ISHER      P595                    FHEA-rSAR              CLOS".
'ZHY}52.'60                                                TABLE    10.3.3-1 (Con-inue~~)
5
 
13-MS-A20
    ~ N
~ ~                                      APPENDIX  C IN5i~5PE3fT AIP. LM~
AC i i YE VAL. ~
AIR FILTER YP'E            YBlOOR          RXEL          SI ~(Y) M-FM REF.
1LVoa59          F I SHER        P 594-1          40    NONE            CLO.
2LY0459 1Lvoaeo          FiSHER          P 594-1          ao    NONE            CLO'.
2LY0460 1HY8153          FISHER          P 594-1                  NONE            CLOS 2HY8153 l.,v8154          COHOFLOA        FH-20                    NOH"            CLOS 2HV8154 1YY 5227        WATTS            F-602-"EJ        40    NOHE            CLOS!
2HY522?
1HY5228                5        F-602-4EJ        40    NONE            CLOSE 2HY5228 1HY5229          WATTS            F-60?-4EJ      =
40    HONE          .
CLOSE 2HY5229 1HY5230          WATTS            F-602-4EJ        40    NONE            CLOSE.'-
2HY 5230 AHY19722        COHOFLO'.I      GFH20XT1782      35    NOH.            CLOSEi AHY19723        CONOFLOM        GFH20XT1782      35    NON.            CLQSEC Assu'as failure position on  feed~ater isola.ion signal
 
13-HS-A20 APPENDIX C TABL< 7 S Fr. Y Ri LAIC)
I&#xc3;STR SET A}g LgERS
                                -ACTiYE        D~ERS-----
  ~
    ~R        Yc&#xc3;CCR      '~LF/LTM A}R STZ:"(H      ~M-FAR        REF.
AHY2534  NOR GREH    F}2-4MA3M          50          TABLE 9. 4. 2-2 AHV2535  HORGREH      F}2-400'H          50          TABLE  9.4.2-Z AHY2528  HQRGREH      F}2-400A3H          50          TABL    9. 4.
        /                                                                  2-2'ABLE AHY2529  HORGREH      F}2-400n3M          5Q                  9.4.2-2.
AHY}2%2  HORGREH  -
F}2-400A3H          50          TABLE 9. 4. 2-2 AHY}2&}  HORGREH      F } 2-400A"'f      50          T'Bi ". 9.4.2-2 AHY12479  HORGR" H'i        2- 4nQnBH      50          TnBLE 9 4 2 2
                                                                      ~  ~
AHY}2480  itQRGR.!/    F '} 2-400n3H        0          TABLc o AHY}2152  HORGREH      F12    400n3H      50          TABLc  6 4 4 AHY}2'.53 NQRGREH      F12 400A3M          50          TABLE  6.4.4-1 AHY}2162  HORGREH      F i >-400n"."..50                TABLE  6.4.4-1 AHY}2i53  HORGR:-H    F}2-400A"M          50          TABLE 6. 4. 4-1 1HV12505  HORGR".H    F'.2-400A3H        50          TABLE 9. 4. 3-5 2HV}2605
    }HV}2607  NORGREH    "c1 2-400A3H        50          TABLE 9. 4 ~-5 2HY 12607
    }HY12604  XORGR" H    F12-400A3M          50          TABLE  4,4.3-5 2HY}2604 1HY 12606 NORGR-:H    Fi2-400ABH          50          T'BLE 9.4.3-5 2HY}2506 1MY1 2146 HORGR="N    r l 2-400A~          50          T'BLE 6.4.4-.}
ZHY}2146
    }HY}2147  XORGREH    F'2    40QA  ',,    Q          TABl ~
: 6. 4. -'- }
2HV}2.'7
    }HV}2}A  XQRGR H    F    2- 'OQ'H        50          TnBLE 6. 4.    '- }
O. 2HV}2}43
 
13-HS-A20 TABt  '
APPENDIX  C (carlyle)
                                                        -RELAi Q I~iR~G'IR tJSEW
                                          - ACT IYE Mi?ERS- --
AIR FILTER:
'AWr.R                  Y~                KeEL
                                                        ~
SIZ:-(X            .,~~F~~        REF 1HY12149            HORS R  N      F12  400n 3H      50              TABLE  6.4.4-1 2HY12149 1HY2626B            FISHER          262C                              HONE 2HY2626B 1HY262?B            FISHER        .,262C                              HONE ZHY2627B 1HY26288            FISHER            262C                              XONE ZHY26288 1HY262oB            F I 5 HER    . 262C                              HONE 2HY2629B 1HY2636A            HORGREN          F}2-400'3H        50              TABLE o 4 5 3 1HY26368            HORGREH          F}2-400A3H        50              TABLE  9.4.5-3 1HY2638A            HORGREN          F 12- 400A3H      50              TABLE  9.4.5-3 1HY26&8              HO?GREH          F12-400A3H        50              TABLE 9. 4.
5-3'ABLE 1HY 12562            BALSTCN                                                    9,.4.5-3
'1HY12563            BALSTOH                                              TABL"  9.4. 5-3 1HY12595            FISHER          67AFR              40              HOHE ZHY12596 1HY12597            FISHER          67AFR              40              HONE 2HY}2597
  }TY}2086/}2086A      HORG REX        F}2- 400n 3,",    50              TnBL  9. 4. 7 2TY}2086/12086A
  }TY}2098/}2098A      HORGREN          F}2-400A3H        50              TnBLE 9. 4. 7        2 ZTY12098/1 Z098A
  }TY}2085/} 2085A    (US. 5 F ILTE? OH }TV}2098)                                o 4 7 2TY 1208 5/1208 5A  (US=5 FiLT R 0'> ZTY}2098)
  }HY}20)0            HOPGRE'i        F}2-'00'3          <0              TABLE  9,4.8-2 2HY}2010 These are elec:ric                Ga...gers  ~i:h air    ope a ed guLb}e    igh:  sea~s does no: assume 'ai }Ul 4 pos    l  ion on    ) os; o; ins:r.-.zn..a i
 
13-MS-A20 APPENDIX  C TABLE 7  (HNTIXJE3)
LJ IXSTRU~
AIR ACTIVE DAN USES E2S--'-
N.~EP~              VEXmm      ~'IZ:-(~
AIR    FILlM M-FSQ      REF.
1HY 1 2010n        HORGREH    F12-400A~W      50            HONE 2HY12010A 1TY12095A/12095C    HORGREH      F12-400A aH    50            TASLE 9.4.7-2 2T Y12095A/12095C 1TY12095B/120950    HORGRcH    F12-400A3H      50            TABLe 9.4.7-2 2TY12095B/120950 1 TV12094 " /12094C HQRGREH    F12-400A3H      50            TABLE 9;4.7-2 2TY12094A/12094C 1 TV12094B/120940  NORGREH      I 2-400A3H    50            TABLE 9.4.7-2 2TY12094S/120940 1TY12096/12096A    HORGREN    F12-400A3H        0            TABLE 9.4.7-2 2TV.12096/12096A lTV12097/i 2097A    (USES FILTER 0N 1TV12096}                TABLE 9.4.7-2 2TY12097/120o7      (USES FILTER OH ZTY12096}
1TY12099/12099A    HORGREN    F 12-400AM      50            TABL- 9.4.7-2 ZTY120oo/1209oA lTY12100/12100A    NORGR.N    F12-400A3H      50            TABLE 9.4.7-2 ZTV12100/12100A 1TY12101/1210'.A    HORGREH    F'12-400A3M      50            TABLe 9.4.7"2 2TY12101/12101A
 
13-MS-A2a COMPRESSED  GAS SYSTEM EVALUATIO&#xc3; AND  ANALYSIS APPENDIX D FAILURE 'DATA TRENDIVG REPORT FOR ADVs, FVIVs, AND MSIV's
 
13-MS-A20 CoiiPRESSED GAS SYSTEH EVALUATION AND ANALYSIS'ABLE D-1 FAILURE DATA TRENDING FOR HSIViFMIV FAILURES I
FDT NO. Co.fPONENT          FAILURE DESCRIPTION                    CAUSE I
185506      1JSGAPT      I  Pressure  transmitter            had a Suspect plug (861022)        0233    I  leaking  fitting                      may have been(
dirty I
300073      1JSGEUV      I  Nl 4-way valve changed out              One  found (880613)        0171    I  twice                                  cracked, the I                                          other  dirty I
327201      2JSGAUY        Accumulator was low in                                I 0170B    I  pressure                                Cause  of loss[
I                                          of  N>        I I                                          pressure      )
I                                          suspect  dirty)
I                                          solenoid I                                          valve          I I                                                        I 269329      1 J SGEUV    I  Solenoid valve was blowing              Several (880107)        0170    I  air past seat                          leaking air I                                          line fittings)
I                                                        I 231709      1JSGEUV      l' Accumulator pressure on                Leaky  tubing/i (870615)        0171        precharge check was low                fitting I
234562      1JSGEUV      I  Accumulator failed precharge            Unknown  N~
(870629)        0171    I  pressure check                          leakage I                                                                          l 269297      1JSGEUV      I  Accumulator dumped without              Several (ssolo7) I
              - 0171      I  operator action                        leaking air I                I                                          line fittingsi I                I                                                        I 269335      1JSGEUV      I  Accumulator dumped without              Several (880107)        0180    I  operator action                        leaking air I                I                                          line fittings(
l                I                                                          I 269336      1J SGEUV    I  Both sources    of air  had to          Several (880108)      - 0181        be operated or valve would              leaking air I
I t
I  lift open                              line fittingsi I                I                                                          I 206430      2JSGAPT      I  Fittings  were  leaking            N> Loose          I (870128)        0229                                                fittings.
I D-1
 
                                                                    ,13-MS-A20 COMPRESSED  GAS SYSTEM EVALUATION AND    ANALYSIS TABLE D-1 FAILURE DATA TRENDING FOR  MSIV/FWIV FAILURES FDT NO.        COMPONENT            FAILURE .DESCRIPTION            CAUSE I
300797          2JSGAUY      I  Solenoid valve was leaking      Cause, (880615)            0170B      I  internally                      unknown I.
l 206430          2JSGBPT      I  Fittings  were leaking  N~    Loose (870128)        - 0230        I                                  fittings I
332657          1JSGEUV      I  Accumulator precharge          Suspect due (881221)            0171      I  pressure check failed low      to thermal
                                'I                                  changes I
flair 1
1JSGEUV          Leaked  at inverted            Borken  o-ringl 0180      I  elbows I                                l 281575          1JSGEUV      l  Accumulator SEIS alarm          Np  pressure I (880227)            0180      l                                  low due to l                                  normal I                                  operating I                                  condition I
281575          1SJGEUV      I  Accumulator SEIS alarm          N~  pressure (880227) .-        0181      I                                  low due to I                                  normal l                                  operating      l I                                  condition      l I                                                l 281575          1S JGEUV      l  MSIV  accumulator alarm        N>  pressure (880227)            0170      I  annunciated                    low due to I                                  normal        I I                                  operating I                                  condition I                                                I 237893          1JSGEUV      I  Accumulator  failure pressure  Suspect        I (870/14)    l      0171      I  low                            pressure loss)
              'I                l                                  was due to I                                  thermal I                                  changes        l I
D-2
 
0
~ll
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS TABLE  D-l FAILURE DATA TRENDING FOR  MSIV/FWIV FAILURES FDT NO    COMPONENT            FAILURE DESCRIPTION              CAUSE I
281575    1JSGEUV    I  Accumulator SEIS alarm          Believe due (880227)    - 0171      I                                    to normal I                                    operating t                                    condition I
192513    2JSGEUV    I  Output of regulators was low    Regulator (861113)      0181        causing an alarm on SESS        out of I                                    adjustment I
2JSGEUV    I  Valve  failure pressure test    Faulty 4-way 0170    I  functional testing              valve suspect(
1                                    normal wear I
99003000  3JSGEUV    I  Accumulator pressure was low    Normal (890117)      0171    I                                    temperature I                                    variations l                                    and aging I                                    caused I                                    pressure to I                                    be low I
298533    3JSGEUV    I  Oil was leaking from top        Degraded (880604)    - 0180      I  of accumulator                  o-ring I                                    suspect I                        l                                    normal        I I                        I                                    wear/aging    I I                        I                                                  I 153490    1JSGEUV        Air/hydraulic    pump should not Normal wear (860515)      0181    I  produce  full pressure          on pump I                        I                                    internal I                        I                                    parts          l I                        I                                                  I 192453    1JSGEUV    I  MSIV had  service air leak      Worn check    I I (861126)      0181 . l                                    valve          I I                        I                                                  1 I                        I                                                  I l                        I                                                  I I                                                                            I D-3
 
0
~li
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS TABLE'-1 FAILURE DATA TRENDING FOR  MSIV/FMIV FAILURES I
FDT NO.      COMPONENT            FAILURE DESCRIPTION          CAUSE I
224796        2 J SGEUV      4-way valve was not          Suspect (870511)            0170        operating properly            normal wear I              I I  234022    l  2JSGEUV        Hi pressure regulator        Suspect I (870627)    I
                  - 0170          diaphram was blowing air      normal wear I            I              I l  259180        2 J SGEUV      4-way valve was stuck    90%  Suspect I (871109)    l      0170    l  open                          normal wear, I            l              l                                aging I          ~
l              I I  299834    I  1JSGEUV        Accumulator  failed to  pump Nl 4-way I (880611)            171        up  after exercise            valve I                            I                                defective, I            I              I                                normal wear I            I              I 118201        1J SGEUV        Operator had low hydraulic    Suspect I (851105)            180        pressure                      normal'ear l            I              I I  153464        1JSGEUV        Valve closed and would not    Suspect  air/
I (860514)    I      180        open                          oil pump I            I              I                                failure thru I            I              I                                normal wear I            I              I I  281354        1JSGEUV        Air accumulator  alarmed on  Air pressure I (880227)    I
                  - 0170          low pressure                  gauge out of I            I              I                                adjustment I            l              l                                normal wear/
I            l              I                                aging of I            I              I                                components I            I              I 310386        1JSGEUV        Valve did not  fully close  Faulty 4-way
( 880815)  I      0170    I                                valve normal l            I              I                                wear aging    l I            I              I                                              I I  333112    I 1JSGEUV'        Accumulator pressure    low  Temperature
( 881230)          0170    I                                variations I            I              I                                and aging I                                                                            l D-4
 
13-MS'-A20 COMPRESSED GAS SYSTEM.EUALUATION AND ANALYSIS APPENDIX E REFERENCE MATERIAL ASSOCIATED WITH PREUENTATIUE MAINTENANCE
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS APPENDIX E REFERENCE MATERIAL ASSOCIATED WITH. PREVENTATIVE MAINTENANCE (PH)
PURPOSE This  Appendix recommendnds preventative maintenance  enhancements  to increase the reliability of  the CGS and to maintain proper gas    quality.
Supplier documents fo f r maintenance  and operation of various    components    within the Com P ressed Gas System S        (x.e., Instrument Air and Nitrogen Systems) were reviewed to determine the recommended maintenance intervals. a s. SIMS R epetxtive or    as s were reviewed to compare existing requirements              with vendor recommendation.
RECOMMENDED PREVENTATIVE MAINTENANCE ACTIONS
: 1. Comment on  Existing Repetitive    Work Tasks The  equipment/instrument listed in Table E-3 have a Repetitive Work task generated in the SINS data base which is not kept current. The due date currently given for the performance of the task is only an estimate for p arming purpose      and is not an actual'ask performance due date.        A review of the original frequency stated for the equipment/instruments listed in Table 3 shows    that the original frequency is comparable to the manufacturer's recommended maintenance interval. Therefore, the Repetitive Work Tasks for the equipment/instruments listed in Table E-3 and E-4 should be changed to the original requirements.
: 2. Additional Preventative Maintenance Tasks Tables E-1 and E-2 identifies additional monitoring, inspection and/or preventative maintenance tasks that are currently not performed under, the PVNGS Repetitive Task Program for the CGS.      These recommended      tasks do not supercede the tasks that currently exist in the PVNGS Repetitive Task Program. Instead, the recommended tasks should            be  performed    in conjunction with the existing tasks.          For additional monitoring see Tables E-1 and E-2.
 
13-MS-A20 COMPRESSED  GAS SYSTEM EVALUATION AND  ANALYSIS TABLE E-1 ADDITIONAL PMs REQUIRED FOR INSTRUMENT AIR SYSTEM ITEM                                    MAINTENANCE TEST          I I
Monitor air quality for particles          Test every three months (see Note 1). I and hydrocarbons.                                                                I I
Compressor free  air regulator.          Revise operations procedure to drain  I these filters air least once a week or crack open drain valves to allow drainage.
I l I
I Compressor  after-cooler.                  Inspect for evidence of leakage      I yearly (see Note 2).                  I I
Safety valves.                            Manually "pop" the ~alves once for refueling to verify proper operation (Note 3).
Compressor  solenoid valves.              Inspect and clean (as'ecessary)  on annual compressor  teardown (Note 4).
Compressor sequence  controller          Adjust/verify proper operation during)
PIC-39 and PCV-43.              r        annual compressor teardown (Note 5).
I IA header nitrogen  isolation valve      Verify proper operation at refueling (IAN-PV-52).                              (Note 6).                            I I
E-2
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND    ANALYSIS TABLE E-2 ADDITIONAL PMS REQUIRED FOR THE NITROGEN SYSTEM ITEM                        PREVENTATIUE MAINTENANCE TESTS l
Liquid Nitrogen Storage          Visually inspect every    6 months  in  accordance Tank M-GAN-XOl                  with note 7.
I:                              I
(
Tank Pressure Buildup            Move  regulator through 10 PSI of adjustment and(
Regulator J-GAN-PCV-96          reset to original. setpoint every 6 months. See) note 8.                                            I l                                                    I Tank Pressure Economizer        Move  regulator through 10 psi of adjustment and[
Regulator J-GAN-PCV-99          reset to original setpoint every 6 months. See(
note 8.                                            I 1                                                    I Calibrate Liquid Level          Calibrate at every  6  months. See  note 9. I Gage for "0"                  I                                                    I
                /                I                                                    I Liquid Nitrogen    Pump          Perform maintenance per note 10 once. every M-GAN-P01A &  B                year or 1000 hours of operation. Also perform maintenance every 2000 hours of operation per note 11.
I Nitrogen regulators              Perform maintenance    according to note  12 once J-GAN-PCV-49, 49A, and          3 months.
J-GAN-PC-41                  I I
Nitrogen Temperature            Check  for shutoff at  -20F with  refrigerant at Ualve J-GAN-TCU-48              every refueling. Reference 13-MM-104-55 Section f.8.c.3. This requirement is changed from the manufacturers recommendations since
[ the system must be taken out of service to perform this task.
l                                I Nitrogen Regulators              Run the  regulators through 20 psig of            I J-GAN-PC-31                      adjustments every 3 months. Return to              I J-GAN-PC-38                    ( setpoint. Reference 13-MM-104-55 Section          I I                                I f.8.d.l.                                          I I                                I                                                    I Nitrogen Safety Valves          Test and reset every year. Reference              I 13-MM-104-55 Section f.8.e.
)
J-GAN-PSU-29 & 36                                                                  I l +2 I                                                    l Rupture Discs                    Replace rupture discs every 3 years.              1 J-GAN-PSE-85 & 92                Reference 13-MM-104-55 Section f.8.e.              I t
E-3
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS NOTES:
: 1)  ANPP's    current PM Program does not inspect the piston rod            packing    and/or oil    scraper rings.        This testing will ensure that            air quality is maintained and oil carryover does not occur.
2))  Inspect the tell-tale hole which is on the after-cooler for evidence of air or      water leakage. Air or water will indicate seal failure that needs to be corrected
: 3)  Manufacturer's instruction is to inspect once per six. months.                    However,,
inspection once per six months could cause undesirable transients on an operating        unit.      Therefore,    inspection      once    per  refueling is recommended.        Reference M050.50.
: 4)  If    the solenoid is buzzing loud enough to be clearly heard at arm length, A then the solenoid internals need cleaning. These solenoids are upstream +~
of the after-filters and are supplied by air from the receiver which may not. be as clean as. the air required by the ISA standards.                  In addition, inspect proper operation of the cooling water solenoid isolation valve.
5))  P IC--3 9    should be inspected to verify that appropriate pressure signal (i.e.,    3.15 lb.) is delivered to the adjustable bias ratio relays from the pneumatic indicating controller. The output of the bias ratio relays should ha acetified to assure PIC-39 is operating adequately shen the Qi.
compressors are shifted.
: 6)  Verify proper operation of this valve once per refueling by isolating the nitrogen header on both sides of the valve and generating, a PSL-52 open signal.        This task should be. performed at each refueling to avoid isolation of the IA system backup during normal operation.
: 7)  A.        Check  for frost spot on outer vessel.        These  indicate  a  poor    vacuum or  a  void in the perlite insulation.
B.        Check    the  pressure  in the    vacuum  insulated space    if A. indicates Qg frost spots.
Check for ice buildup    around  relief  devices and rupture discs.
: 8)  Reference Tech Manual 13-MM-104-55 Section            f.8.a.7
: 9)  Reference Tech Manual 13-MM-104-55 Section            f.8.a.6.
10)'emove crankshaft, connecting rod,            and cross head      assembly    from  bearing housing.
A.        Check the two main bearings              and the connecting rod      bearing for smooth running while rotating by hand around crankshaft.                If    they feel rough, replace.
B.        Disassemble    wrist pin    from    connecting    rod    and visually inspect wrist pin    and needle  bearing.
E-4
 
13-MS-A20 COMPRESSED  GAS,SYSTEM EVALUATION AND ANALYSIS If the" wrist pin  shows  either:      1)  roller  drag marks, 2) marks from abrasive    particles,    or  3)    shows    any sign  of material removal of
          'material removal or any other unusual wear, replace the wrist pin and needle bearing or bushing immediately.
Check cross head and bushings in the housing for wear or damage.
(Use of a drop light is recommended).          If  more than 20% of rubbing surface    displays    longitudinal marks from abrasive particles, replace bushings and cross head.
ll) A. Remove  liquid'nd assembly      (P1600-1002)    from sump.
Diassemble all components.
Replace packing, push rod guides,          sump  gasket, and  all  O-rings.
D. Replace valve plate, discharge        ball,,  and valve body.
Visually inspect all other parts.          Replace any    parts  appearing  to be worn or damaged.
Check for    dirt  buildup on    filter and    in bottom of    sump can. Clean and reuse.
: 12. Run the control valves through      20    psig    of adjustment.        Return  to set points. Reference 13-ILL-10@-55, Section        f.8.c.l  and  f.8.c.2.
                                          -E-5
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND  ANALYSIS TABLE. E-3 EQUIPMENT AND TAG iNUMBER LISTING INSTRUMENT AIR SUBSYSTEM I
AIR  DRYERS l
J IANMSH0091; 0092 I
JIANPDIS0024; 0025; 0028; 0029 JIANPSH0093; 0094 RECEIVER JANP10018; 0019; 0020 COMPRESSOR JIANPI0044; 0046; 0053; 0054; 0055 JIANPI0102; 0103; 0104 JIANPI0121; 0122; 0123 JIANPSH0062; 0063; 0064 JANPS0071; 0072; 00?3 JANTI0114; 0115; 0116 JANTI0131; 0132; 0133 JANTI0134; 0135; 0136 JANTS0006; 0007; 0008 JIANTSH0056; 0057; 0058 JIANTSH0059; 0060; 0061 FTERCOOLER JIANTI0036; 0037; 0038 I
N I.
JIANPI0214; 0230; 0231; 0232 I  PLOOP0032 PSL0033 i  JIANPSL0216 I
)  AFTFR COOLER I
(
1MIANM06A I
E-6
 
0 0
 
13-MS-A20 COMPRESSED  GAS  SYSTE'i EVALUATION AND ANALYSIS TABLE E-4 EQUIPMENT AND TAG NUMBER LISTING NITROGEN SUBSYSTEM Li uid Nitrogen    Tank J-GAN-PSE-0095 J-GAn-PI-0094 J -GAN-LISL-0039 Li uid Nitro~en    Pur.;
J -GAN - PSH-0116 J-GAN-PSH-0115 Nitrogen    Low Pressure  Manifold J-GAN-PI-0042 J-GAN-PSH-0076 J-GAN-PI-0078 J-GAN-PI-142 Hi h Pressure    Manifold J-CAN-PSL-0004 J-GAN-PI-0040 J-GAN-PV-0038 J-GAN-PC-0038 J-GAN-PSH-0077 J-GAN-PI-0079 J-GAN-PC-0031 J-GAN-PV-0031 J-GAN-PI-0032 J-GAN-PSL-003 J-GAN-PI-0037, 0030 J-GAN-TIS-0117B J-GAN-PSHL-0140 E-7
 
Cl
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                                              .13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS APPENDIX F LEAK TEST OF ADV INSTRtJMENT AIR
                .CHECK UALUE
 
APPENDLC F                    13-hIS-A20 BACK LEAKAGE TESTS OF ADV IYSTRU~1EXT NITROGEN C'iEC" 4'ALV~
Prepared For
        ~
Arizona Public Service  Company Dr. Ramend.ra P.Roy Depar-ment o-" ~lecnanical g A rospace Engineering Ari=ona Sta-e Univ rsi-y y  IoQo
 
APPENDIX F                                    13-MS-A20 A test  apparatus for conductu>g back leakage tests  of an ADVInstrument Nitrogen Check Valve divas set up. The tests mere. carried out at.two air supply pressures of 95 psig.and 80 psig.
The average leakage rates. at 95 psig and 80 psig ~ere 356 bubblesjmin. + 1'1'bubbles/min. and 297 bubbles/min. + 6 bubbles/min. respectively.
 
APPENDD: F  13-MS-A20 TABLE OF CONTENTS Section                                                  ~Pa  e Summary Table of Contents List of Figures                                              iv
'List of Tables 1.0    Introduction 2:0    The Test Apparatus  4 Procedure                    2-1 2.1    Test Apparatus                              2-1'-2 2;2    Test Procedure 3.0    Results                                            3-1 3.1    Test Data                                  3-1 3.2    Average Leakage Rates                      3-'3
 
0 APPEilDIX F    13-MS-A20 LIST OF  FIG~
Fic ere                                                  ~Pa e Fig. 1 Schematic diagram of the test apparatus            2-1 Fig. 2  A sketch of the check valve and the emit tube      2-2
 
0 0
~
  ~
 
APPENDLC F          13-VIS-A20 LIST OF TABLES Table                                                      Pace Check valve back leakage test data at air supply      3-1 pressure of 95 psig.
Cbeck valve back leakage test data at air supply      3-2' pressure of 80 psig.
 
APPENDS F                                  13-MS-A20 1.0  Ii~ODUCTION Tlte objective oi this project was to obtain back leakage test data for one 1 inch series, 000!L., stainless steel Y-type spring check valve with steliite metal'-to-metal seat. The valve 6000!b was to be insta!Ied in a horizontal position and the tests were to be conducted in accordance with ANSI/API 527, "Commercial Seat Tightness of Safety Relief Valves with Metal-to-Metal Seats".
The procedure outlined in this document was to be followed because no separate document is available for spring check valves with metal-to-metal seats. The leakage measurements were to be conducted at supply air pressures  of 95 psig and 80 psig.
The valve was provided by Arizona Public Service Company (APS). A requirement was imposed that the valve not be welded or altered in any way during the tests.
 
13-MS-A20 2.0 TH E TEST APPARATUS AND PROCEDURE 2.1    TEST APPARATUS Figure    1  is a schematic diagram    of the  test apparatus. Air, free of oil and water, is supplied from an air accumulator (at 125 psig pressure).              A ressure re ulator was installed upstream  of the check valve        tested so that the air pressure at the valve inlet could be J-Ro<
AIR Cat'RGB sR FIa-.eF F IL'IF IF                                                                    epact'At.vt Q~    c
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NJ A'TL'tt, AMOMVFA~R velvet Fig. 1  Schematic diagram of the test apparatus controlled. A 5/1 6 inch      (7.9 mm) O.D. stainless steel tube with 0.035 inch (0.89 mm) wall thickness was installed at the downstream end of the check valve as per ANSI/API 527 requiremet]t. The discharge end of this tube was cut square and smooth, and immersed parallel to and 1/2 inch (12.7 rmn') below the water (distilled) surface in the water vessel. Figure 2 is          a more detailed sketch of the check valve and associated fittings and the stainl ss steel tub=.
1
 
APPENDIX F                                            13-MS-A20 Pvc P~                          //VM Q                        V'VC VIII.S (msgr(~~i~ 0-YsgS                                                    (~  O-rI~)
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                                                                                                          ,n 2
Vc.sS'M Fig. 2 A sketch of th'e check valve with the exit tube The PVC plugs and the stainless steel fittings on the ittiet and the exit sides of the check valve were subjected to soap bubble leak tests to ensure that they were indeed leaktight. The check valve was installed in the horizontal position for all tests.            A pressure    gage installed immediately upstream of the valve indicated the supply air pressure.
The air pressure buildup in the check valve exit tube was negligible because of mirtirnai resistance to air flow along the exit path.
2.2      TEST PROCEDURE Two seri    s of tests were run  at each  of the tivo air supply. pressures (viz. 95 psig      and SO psig). One series of tests corresponded to the check valve as obtained from APS. The second series of tests was'run after exercising      the check valve by establishing air Qow in the normal 2-2
 
APPENDIX F                                  13 MS A20 direction tluough it several times.
At each supplv pressure, the valve leakage rate in bubbies per minute was determined    b countu>g the. number  of bubbles over a specific time interval. Since the bubbles emerged from the tube at rates too high for visual counting, the 'popping'ound made by    each bubble as it emerged was depended upon for counting. Results obtained by this method proved to be quite consistent as catt be seen from the data presented in Section 3.0. A stop watch  was used for establishing the counting time interval.
Some degree of independence between the various bubble count rates obtained was provided by having three different individuals participate in the counting experiment.
 
APPENDIX F                                      13-MS-A20 RESULTS 3.1    TEST DATA Table 1 Check Valve Leak Test Data at Air Supply  Pressure  of ~5~~si; Series 1 before exercisin  the valve time interval second                      Leakage    (". of bubbles 5.20                                          30 5.29                                          30 4.01                                          25 1.61                                          10 2.47                                          15 2.01                                          12 Average = 356 bubbles/min. +      11 bubbles/min.
Series 2 after exercisin  the valve tune interval second)                      Le~dra~e (-" of bubbles 5.06                                          30 3.48                                          20 3.51                                          21 3.46                                          21 3.40                                          20 Average = 356 bubbles/min. + 10 bubbles/min.
 
~li ill
 
APPENDIX F                                  13-hIS-A20 Table Valve Leak Test Data at Alr Supply Pressure of 80 usta
                                                    'heek Series 1 before exercisin    the valve time interval second                        Leat;a e  (". of bubbles 8.13                                            40 6.28                                            30 10.23 6.25                                          '0'l5 50 5.15 Average = 291 bubbles/min. + 5 bubbles/min.
Series 2 after ezercisint, the valve time interval second                        Leal'.ace  -".. of bubbles 5.96                                            30 4.06                                            20 3.96                                            20 3.91                                            20 Average = 302 bubb!es/min. + 6 bubbles/min.
3  2
 
APP.EMBLEM    F                            13 MS A20 3.2    AVERAGE LEAKAGERATES
    . The average leaLage rate at air.supply prcssure of 95.psig was 356 bubbles/min. +
11'ubbles/tnin.
The average"leakage rate. at,air supply pressure of SO psig was 297 bubbles/min..+ 6 bubbles/min.
 
13-MS-A20 Conpressed Gas System  Eval .ation and Analysis APPENDiX  G Pneumatic Component Tnspection Results  for Air Quality Concerns
 
13-HS-A20 Compressed    Gas System    Evaluation and Analysis A  pilot p      progran for    pneumatic comxonent        insoection ha-        b een initiated ia ed ata pVNGS. The  obgectives of the program      are.'.
Inspect a samp}.e of pneumatic conponents fron unit 2 to gain confidence that no degradation of equipment has resulted due to pox,entially degraded air qu'ality durin'g past plant operations.
: 2. Gain" experience          in the inspection of" pneumatic conponents for a          proposed    future p}.ant wide evaluation. The information gained from this pilot program will be used            to write the inspection procedure for        the      greater    scope    statistical evaluation discussed in- section IV. F of this study.
Four 3/4 inch air operated 2-way norma}.}.y open pilot val from Unit 2 were inspected .              These valves are part of the pneumatic control system for the Steam Bypass Control Valves.
In addition, four pneunatic positioners for the Atmospheric Dump Valves    from Unit 3 wexe inspected.                None of the components that were inspected              showed any indication of deg adation due to potential air quality prob}.ems.                    A light layer of dust on some conponents was the only indicax,ion of contamination that was observed.            There was no indication'f any hydrocarbon or moisture con amination in any active ax'ea of the pneumatic component.
The pilot valves f on Unit 2 showed the greatest spread in dust accumulation among components.              One valve appeared to have been insta}.led for a considerable amount of tine while the other      three    valves - had        significantly less dust accumulation and nay not have seen as much service. A tine in service determination could not be made since there no way to tie the specific valve to specific wor)c history. There are Four identical part numbered pilot valves on each Steam Bypass Contxol Valve pneumatic control system and the valve identification tags only stated which SBCV they came from.
The Atmospheric Dump Valve positioners from unit three showed essen ially the same          anount of dust buildup from one positioner to another.          A SI?15    work order search revealed that three of the positioners had been in service since staxtup and one had been replaced'n November 25. 1987. The amount of dust in the positioners was very light and had the consistency of flou..
The amount and    si=e of dust observed on both the'pilot valves and positioners      was considered to be well wxthin accepxabie limits  and  all  components      were considered to be completely functiona}. with    respect    to  i nstrument air cone.amxnax.son.
Attached are the inspection results for each component.
 
13-MS-A20 Compressed    Gas System  Evaluation and Analysis VALVE AND DAMPER PNEUMATIC COMPONENT INSPECT10N Date. May  2, 1989 Unit.: 2 Parent component or component tag no. 2JSGNPV1003 Component name.      Air operated    2'-way normally open valve Manufacturer.      Ross Mndnl nn: 2752A5002-Manufactured: 1/78 COMMENTS:
General condition;          The valve. when disa"sembled,              showed evidence of considerable use as indicated by the valve diaphragm and control 0-rings wear condition of valve disk, and scxaping on      the housing.
Exterior condition:
: 1. No  physical danaae to housing.
: 2. Cap acre~a holding top flange and bottom flange have light. rust on all exposed surfaces.
3 ~  The    diaphragm    vent has          liaht    bx'ownish    red accumulation of dixt, and oil mix.            (oil is  believed to  be  0"ring lubricant.).
: 4. The  pine thread sealant is limited to the thread contact area.
Process Side;
            ~ight brownish red accumulation of dust tyo matex ial is seen on the valve seat assembly. return spring, and inlet/outlet housing. Dust was dry and very f ine.      The dust;, when accumulated.            had the approximate consistency of flour.                There is not enough accumulation of dust to obtain a sample for chemical analysis.
The    inlet/out)et    housing    had    sliaht, discoloration and  staining on the aluminum.              The source of thxs staining is unknown.
Control Side; The    valve  actuator    bonnet    inlet side    paesaae  to G-2
 
13-MS-A20 Compressed      Gas System  Eva'uation    and Anal'ysis i
bonnet area is blocked off by the bonnet flange.
Corxosion products and fiber products were found at this point on the bonnet flange.                The corrosion products appear white tc light'rey and laky.
: 2. Diaohraam orocess 0-ring and control air 0-ring are well    worn but appear serviceable on disassembly.
: 3. The      diaphragm      bottom      cavity    shows    s 1 ig ht ace umulation of what appears        to be atmospheric dirt.
: 4. The valve seat sho~s      dirt  on  the inl'et cavity.
Conclusions.
Althouah the valve shows            considerable    wear    and should be reworked before appears that the valve is being  reassembled, still functional.            it
: 2. There    is  no evidence  that  any  air quality  concerns that    wou3.d  keep this valve  from func ioning 3    There is no evidence that the small amount of dust found in the valve would imoair its function. A3.3.
dust inspected was very fine and powdery.
There is no evidence of oil        f  om the comp essors observed.        The only lubricant obsex'ved appeared to 0-ring lubxication. Dirt and oil mix was on y seen at the 0-ring area and attributed too 0-rin                -rang lubrication.
5., The on3.y evidence        of internal corrosion was seen on the inlet flange at the inlet side passage to bonnet area. This is a stagnant flow area of 'the valve and present on this desian because the b o d y is used fb3.ocked ox'nly or more than one application.                The passage of f for this application. and the corrosion is is only on the flanae area.
 
13-MS"A20 Compressed  Gas System    Evaluation and Analysis 1.
VALVE AND DAMPER PNEUMATIC COMPONENT INSPECTXON Date. May 2. 1989 f
Unit:  2 Parent component or component tao no: Unknown Component name:      Air o'perated    Z-way normally open valve Manufacturer.'oss Model oo: 2752A500l.
Manufactured: 2/78 COMMENTS General Condition: The valve appears to have been in service only  a short .time or does              not see much service. There appears to be        little    wear on the 0-rings or scraping of the 0-ring on the diaphragm housing.
Exterior condition;
: 1.      No physical    d'amage  to the housing.
: 2.      Top and    bottom flange cap screws are clean      wi th no rust.
3  ~    Slight oil    and  dust buildup on the diaph agm  vent.
Process      Side; 1  ~    Very  clean with virtually no evidence of dust buildup on the valve body, inlet and outlet housing, valve seat assenbly, and return sp ing.
2~      There  is  no    evidence  of cor osive effects  on  this side of the valve.
Control side:
Very clean with virtually no evidence of dust, buildup on the ac uator bonnet or upper diaphragm.
There  is  no    evidence  oi corrosive effect"  on  this side of the valve.
Conclusions.
This v<>>e has probably not been in service for a long Period of tine or valve shows virtually no wear.
it i" not used of ten. The
 
13-MS-A20 Compressed  Gus Sys em  Eva'uation and Analysis There  is  no evidence    that  any air quality  concerns that  would keep  this valve  from func ioning.
There  is no evidence that the small quan ity of dust particles found in the valve would impair valve operation ~
There  is  no evidence    of oil from the conpressor- in the valve.      The on}y  lubricant observed appears to be 0-rang    lubrication.
There is no evidence 'that the          valve  has  ever expe ienced internal corrosion.
 
13-MS-A20 Compressed    Gas System  Evaluation    and  Analysis VALVE AHD DAMPER PNEUMATIC COMPONENT INSPECTION Date. May 2, 1989 Uni:    2 Pa en    component or component tag no: Unknown Component name:      Air operated  Z-,way  normally open valve Manufacturer. Ross Nedel ee." 2752A5001-Manufactured: 2/78 COMMENTS:
General Condition; The valve apoears            to have been in service only  a    short tine or does not see much service. There aopears to be little wea on the 0"rings or scr"pina oz the 0-ring on the diaphragm housing.
Exterior condition; No mal inservice wear is evident on this valve.
2 ~  Top and botton flange cap screws are clean with no rust.
large    amount It oil ox        and  dust  buildup    on  the A
diaphraam vent.          appears that the valve was not cleaned on the outside a~ter rework.
process Side:
: 1. Very      clean with vi tually no evidence o~ dust buildup on the valve body, inlet and outlet housing, valve seat assembly. and return spring. All process side components appear to be bright and shiny.
: 2. There    is  no evidence    o=  corrosive effects    on  this side  o~  the valve.
Control side:
The  valve appears to have been            opened  before as evidenced by a tom bonnet gasket.
2-    Very clean with virtually no evidence o~ dust buildup on the actuator bonnet or upper diaphraam.
: 3. The    bottom    side    oi    the    diaphragm    has    O-rona
 
~O Cl 4b
 
13-MS-A20 Compressed    Gas System    Evaluation    and  Analysis lubr'cant    mixed    with    a    slight  amount    of  dust particles.
4    There is    no    evidence    of corrosive effects      on  the inside  o=  the valve.
Conclusions.
This valve h as pro =bly not been in service for a long period of time or valve shows virtual'y no wear.
it  is not used often. The 2 ~  There  is  no    evidence    that    any air quality  concerns that  would keep      this valve    from functioning.
: 3. There  is no evidence .that the small quantity of dust pa  ticles found in the valve would impa' valve operation.
There  is  no evidence      of oil from the corno essors in the valve.      The only    )ubricani observed appears to be  0-ring lubrication.
: 5. There    is    no    evidence      that the valve      has  ever experienced corrosion.
 
13-HS-A20 Com'pressed  Gas System  Evaluation and Analysis 1
VALVE AND DAMPER PNEUMATIC COMPONENT iNSPECTXON Date: May 2. 1989 Unit:  2 Pa  ent component or component tag no:          2SGNPV1001 Component name:      Air operated    2'-way normally  .open  valve Hanuf acturer    . Ross Model no. 2752AS001-Manufactured: 2/78 COMMENTS:
Gene  al Concition; The val.ve appears to have been in service a  very short tine.          There appears to be no wear on the 0-rings or scraping of the 0-ring on the diaphragn housing.
Exterior condition; Normal inservice    wear  is evident  on  this  val.ve.
: 2. Top and    bottom flange cap      screws  have very  slight amounts  of rust  on then. The cap screws have been lub icated with    what, appears to be a graphite based lubricant.
A slight anount of oil and dust buildup is on the diaphragn vent.      Xt appears that the valve was not cleaned on the outside after rework.
Process    Side:
1  ~  'Very clean with no evidence of dust builduv on the valve body, inlet and outlet housing, valve seat a>>embly, and return spring.              All process aide components appear to have been recentl.y polished.
2  ~    There  is no evidence of corrosive effects on this side of the valve.
Control side:
The valv      gooears to have been opened bozoz e oy a tom bonnet gasket.          Thxs gasket was not replaced.
Very''can with virtually no evidence o= dust buildup on the ac uator bonnet. or upper d'phragm          ~
G-8
 
13-MS-A20.
Compressed  Gas System  "valuation  and Analysxs
: 3. The bottom side  of the diaphragm is .completely clean with no sign of  dirt or dust. The diaphragm 0-rings were .replaced but not lubricated.
There is no evidence          corrosive ef=ects" on the inside of the valve.
Conclusions  .
Thi's valve 'has probably not been in service      for  a long, period'f time or      it  is not, used often.
valve shows 'virtual 1'y no wear.
The
: 2. There  is no e:~dence that any      air quality concerns that  would keep this valve from    functioning;
: 3. There is no evidence    o  oil  from the compressors  in the va'lve.
: 5. Thea'e  is nw ,evidence    that the    valve .has    ever experienced co.rosion.
6 "9
 
0
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13-MS-A20 Compressed    Gas System    Evaluation and Analysis VALVE AND DAMPER PNEUMATIC COMPONENT ltlSPECT" Ot<
Date: May 3, 1989 Unit:  3 Parent component or component tag no:          3JSGBHV03.78 Component name'. Atmospheric    c wp  valve pneumatic positioner Manu  acturer: Moore (model 746)
Serial No: Not given 4
Time in service.'ince startup COMMENTS:
General condition;              The    positioner,      when    conpletely disassembled, showed that its internal pneumatic cavities were very clean.            The disassembly      was taken    beyond the manufacture's recommendations for general mainten"nce.                The pilot plungers and se" ts were the dirtiest components in the positioner. This observation agrees with the manufacture's general maintenance instructions.
Exterior condition:
: 1. Slight oil and dust was observed on the posit'oner.
: 2. The positioner is missing its exhaust air bug screen.
3~  The  air pressure gages used          during etartup are    on the positioner air ports.
C. The  air supply inlet fitting is cross-threaded.
Pilot plunger    and seats:
: 1. The upper and lower pilot Plunger caps. plungqrs.
and plunger springs were renoved.                The plunger-,
plunger seats, and springs showed a slight amount dust. The plunger cavity showed a medium amount ox dust.
: 2. The    . 011    1nch or 1 I lees    in the    p1 lot plunger appeared    to  be completely      free o      dust and plugged-      Th-is is evidenced    by observe>>ions of very round holes with round chamfers on the plungers.
: 3. The  auantity of dust found on the plun ers and plunger seats was not enough to use for a chemical composxtxon or particle sate samp'e.
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3.3"MS-A20 Compressed    Gas System  Evaluation  and  Analysis The  dust that was observed      had  the consistency of flour.
: 5. There was .no evidence u      lubricat.ion products or    oil-on the    plungers, plung-: seats. or springs.
: 6. After cleaning the plungers and plunger seats no indxcation of corrosion or''usting vas observed.
Both components pol'-hed well with a lint free x'ag or cotton    swab and  a:cohol.
Other positioner internals;
: 1. The vent path and      air supply path were covered with a  light  amount  of reddish brown dust.
: 2. The vent, cavity and flapper no- le area          vere clean and free ox dust, oil, or co xosion.
The no-=le exhaust area of the flapper beam              was covered with a fine black radial pattexn of dust.
The output adjustment screw vas found to be, 0 7/8 turns from the bottom which is nox mal.
: 5. The output. port vas clean.
: 6. The valve restriction port, was not observed due to d'ff'culty in removing the output diaphragm assembly. The vendor manual cautions that, any undue force or pryina of this assembly must be avoided.
Conclusions.
This positionex      is considered to be very clean, considering that with  no it  has been installed since startup maintenance of the pneumatic conponents.
2-  There is no evidence that any          air quality  concerns would keep this positioner from        functioning.
: 3. There  is no evicence of any oil from the compressors or other sources in the positioner.
There is no evidence of any. cor osion on the positxoner.
 
13-MS-A20 Compressed    Gas System  Evaluation and Analysis VALVE AND DAMPER PNEUMATIC COMPONENT INSPECTION Date. May  3, 1989 Unit:  3 parent conoonent or conoonenet tag no.        3JSGAHV0184 Component name:    Atmospheric    dump  valve pneumatic positioner Manufacturer: Moore .(model      74G}
Serial No - M101963" 1 Tine in service.. Since startup COMMENTS:
General condition;          The positioner    showed  that it- pilot plungers and seat" were clean.            The d'assembly was limited to the pilo" plunges due to difficulty in removing the output diaphragm assembly of 3JSGAHV0178 and observations f om prior inspection of posit'oner 3JSGAHV03.78.. This positioner shoved that the dirties" component was he plunge s and seats. This was verified by the manufacturer's instruction manual.
Exterior condition;
: 1. Slight oil and dust was observed on the positi'oner.
: 2. The air pressure gages used during startup are on the positxoner ai ports.
pilot plunger    and seats; The uoper        nd lower pilot plunger caos,      p1ungers.
and plunge>> springs were renoved.              The plun ers.
plunge= seats, and springs shoved a slight        anount dust. The plunger cavity shoved            med um anount of dust.
: 2. The upper plunger assenbly had slightly nore dust on  it  than the bottom plunger assembly.
: 3. The    .011    inch  orifices  in  the  px'ot olunaers apoeared    to,  be  completely      ee  of dust and not plugged- This is evidenced by obse vatxons of very round holes with round chamfers on the plungers.
The  auantity of dust found on the olungers and plunger seats was not enou h to use for a chemical composition or particle si=e sample.
 
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13-MS-A20 Compressed,  Gas System    Evaluation and Analysis 5e  The  dust  that  was  observed  had  the consistency of flour.
There was no evidence o= lubrication products or        oil on the plungers. plunger seats, or springs.
: 7. Afte    cl ean  ng  the  plunaers and plunger seat" no indlca55.on  0+  corrosion or rusting was observed.
Both components      pol.-hed well with a lint free rag or cotton swab and a "cohol .
 
==
Conclusions:==
 
This positioner is considered to be very clean considering tt at    it has been installed since startup with no maintenance of the pneunatic components.
: 2. There is no ev i d ence that any air quality concerns would keep this positioner from functioning.
: 3. There is no evidence of any oil from the conpressors or othe sou ces in the oositioner.
There    is  no  evidence      of any  corrosion  on  the posi,tioner.
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33-MS-A20 Compt essed  -
Gas  Syvs tern  Evaluation  and  Analysis VALVE AND DAMPER PNEUMAT': COMPONENT INSPECTION Date. May  3, 1989 Unit:  3 Parent component or component "tag no. 3JSGAHV0179 Component name:      Atmospheric      dump  valve pneumatic positioner Manufacturer'. Moore (nodel 74G)
Serial No. 14121-7@G7DH Time in service. Since startup COMMENTS:
General condition;            The    posi(ioner    showed    that its pilot plungers and sects were clean.                The disassembly was limited to the pilot plunges due to difficulty in renoving the output diaphracm assembly of 3JSGAHV0178 and observations from prior inspection of positioner 3JSGAHV0178. This posit'oner shcwed that the dirtiest component was the plungers and seats. This was verified by the manufacturer's instruction manual.
Exterior condition:
: 1. Slicht oil and dust was observed on the Positioner.
: 2. The air pressu e gages used during st tup are on the positione air ports.
Pilot pluncer    and seats; The upper and lower pilot p3.unger cap-, plungers, and plunger springs wer'e removed.                  The plungers, plunce seats, and springs showed a slight amount of dust. The plunger c "vity showed a medium amount of dust.
The upper pluncer assemb3.y had sl ichtly no. e dust on  it  than the bot om plunger assembly.
3..The      .011    inch    oz  ifices in    the    pxlot Plungers appeared    to. be    comp3.etc  ly cree    of dust anc not.
          .p3.ucaed. This is evidenced by observant'ons o: var round holes with round cham=era on t.he plungers.
The cuanti y of dust found on the olun er" and plunger seats was not enough to use =or c chem]col composi tion or part j cle si e sampl.e        ~
 
13"HS-A20 Compressed  Gas System  Evaluation and Analysis
: 5. The  dust  th t  was  observed  had  the consi- ency  oz flour.
There  w~@  ne evidence  o='ubricstzon  p  oducts o . oil on the  plungers, .plunge:. seats,  or sprincs.
    '7. After c eaning the plungers and plunger seat" no 1
indicationn of corro I ion or rusting was observed.
Both components pol -hed well with a lint free rag or cotton  swab and  a:cohol.
 
==
Conclusions:==
: 1. This positioner is considered to be ve y clean cons'dering thN    it has been installed since startup with no ma'ntenance of the pneumatic conponents.
: 2. There is no evidence that any air auality concerns would keep this positioner from functioning.
There  is no evidence of any oil fz on the comp essors or other sources in the positioner.
: 4. There is no evidence of any corrosion on the posit'oner.
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13-MS-A20 Compressed    Gas System  Evaluation and Analysis VALVE AND -DAMPER PNEUMATI" COMPONENT XNSPECTiON Data:  May  3, 1989 Unit:  3 Pa ent component    o -  component "tag no: 3JSGBHV0185 Comnonent name'Atmospheric        dump  valve pneumatic positioner Manufacturer; Moore .(model      74G)
Serial No: M114618-1 Tine in se vice: Replaced        on 11/25/87 COMMENTS:
General condition;          The  positioner    showed. that its pilot plungers and seats were clean.            The disassembly was limited to the pilot plunges due to difficulty in removing the output diaph agm assembly o~ 3JSGAHV0178 and observations from prior inspection of positione 3JSGAHV0178. This positioner showed that the dirt'est conponent was the plungers and seazs. This was veri~ied by- the manufaciu er's instruc" 'on manual.
Exterior cond'" ion:
: 1. Slight oi.l and dust was observed on the posxtioner.
: 2. The air pressure g-ges used duri'ng startup are on the positione air po ts.
pilot plunge    and seats:
: 1. The upper and lower pilot - plunger caps plungers, a
and plunger springs were removed.            The plunger plunger seats. and springs showed a slight anount
                                                                      ~
dust. The plunger cavity showed a medium amount of dust.
: 2. The upper plunger assembly had slightly no e          dust on  it  than the botton plunger assembly.
: 3. The    .011 "'nch      orifices    in  the pilot Plun=ezs appea ed to be        completely      ree of dust and not plugged. This js ev denced by obse vatzons nf vez y round holes wi"h round chan ers on the oluncers.
The cuantity of dust found on the plunger- and plunger seats was not enough to use for a chem>col composition o: particle si e sample.
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13-MS-A20 Compressed    Gas System  Ev..'.:~tion and Analvsis 1..
: 5. The  dus" f lour.
that  was  observed    had  the consisteency  o f
                                    /
: 6. There was no evidence of      lubr'cation pro  uc iss roduc"    ox'i  1 on thee  plungers, plunger seats,      or springs.
: 7. After cleaning thhe plungers and plun er seat" no indication of cor osion or rusting was observed.
Both components polished well with a lint free ram or cotton  swab and  alcohol.-
Conclusions.
: 1. This positioner      is considered t o b e very clean considering that years with no itmaintenance has been installed for two of the      pneumatic components.
: 2. There  is  no evidence    that any ai auality concerns
          ~ould keep    this positioner fron functioning.
: 3. There  is no evidence of any oil from the compressors or other sources in the posi'tioner.
Ther e is no evidence          of any corrosion on the
        , positioner.
G-17
 
13-HS-A20 CO.'fPRESSED  GAS SYSTEH EVALUATION A'ND ANALYSIS APPENDIX H.
LOW PRESSURE NITROGEN SYSTEM TEST RESULTS
 
13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS Smmmmrv This Appendix provides a summary of the tests which were run to determine the cause    for the pressure drop in the backup nitrogen system to the compressed gas system, test results, conclusion, and proposed                corrective actions.        For the temporary test setup, refer to the Nuclear Administrative Technical Manual procedure noted under each test section.
TEST 1 Procedure No.: 73TI-9IA02, Rev; 0 05/14/89 The  low pressure nitrogen (GA) backup supply to instrument air (IA) header
,test  was set up to determi.,e actual conditions which the nitrogen system would experience during a loss of instrument air. T-Mod 2-89-IA-018 was installed to support 'this gathering of data as per the test 'instruction.
The    scope    of the test.was to throttle temporary valve            TV-3 to  establish flow rates of 300,        '400,  500,    700,  and  900  standard    cubic    feet per minute.
Pressures    were recorded        both at'he nitrogen skid (at the low pressure nitrogen    head'er PI-78 and    at  the high pressure nitrogen header PI-79) and at the temporary modification manifold TPI-1 at two minute time intervals for each established flow rate. The nitrogen level was also recorded as was particulate    samples.
The    test results indicated that the nitrogen header just downstream of the regulators immediately dropped off to 90 psig with flow of 300 SCFM and with subsequent    higher flow rates (the highest attainable consistent flow rate was 737-740 SCFM) the pressure dropped to 82-86 PSIG. The pressure in the turbine building at TPI-1 dropped off rapidly with the higher flow rates. Figure 1 shows the pressure at the instrument air header                  interface at various flow
                                                                                                  'ates.
These  results indicated      two  initial problems:
: 1)    The  regulators weren't providing the proper flow to establish the 82-86 PSIG  out at the low press nitrogen header.
: 2)    There was a considerable pressure drop being caused              in the piping from the regulators to the temporary gage in the turbine              building.
From    the results above, engineering decided to rerun the test and additionally record the nitrogen pressure upstream of the low,pressure nitrogen regulators at the PI-42. This would indicate            if  there was a system design problem (i.e.,
Item 1, the vaporizer and/or piping couldn't supply the proper quantity of nitrogen at the desired pressure with the regulators wide open} or that regulators were either sized wrong and/or set incorrectly.                  For Item 2, and NED engineers          evaluated    the piping  configuration    from  the regulators to T-Mod setup    and  determined    that  the  check  valve    2IAN-V056    contained a spring which        could  be  the  cause  for  the  high  pressure  drop  experienced  during testing. The  results from the particulate samples indicated more particles greater than        the 3 micron level than we would like to see in the instrument air system.
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13-MS-A20 COMPRESSED GAS SYSTEM EVALUATION AND ANALYSIS TEST 2 Procedure Ro.: 73TI-9IA02, Rev. 0 05/17/89 The  low pressure nitrogen (GA) backup supply to instrument air (IA) header test  was  set up to observe the performance of the nitrogen system with the spring    from check valve 2IAN-V056 removed.            T-Mod 2-89-IA-018 remained installed to support this gathering of data as per the test instruction. The internal spring was removed from check valve 2IAN-U056 per EER 89-IA-007 and T-Mod  2-89-IA-023.
The  actual test was to throttle temporary valve TV-3 to establish flow rates of 300, 400, 500, 700, and QOO standard cubic 'feet per minute. Pressures were recorded both at the nitrogen skid (at the low pressure nitrogen header PI-78 and PI-42 and at the high pressure nitrogen header PI-79) and at the temporar  emporary modification manifold TPI-1 at two minute time intervals for each established flow rate. The nitrogen level was also recorded as was particulate samples.
The  test results indicated that the nitrogen header just downstream of the regulators immediately dropped off to 94 psig with flow of 300 SCFM and with subsequent    higher flow rates (the highest attainable consistent flow rate was 811-818 SCFM) the pressure dropped to 82-90 psig. The pressure in the turbine building at TPI-1 dropped off rapidly with the higher flow rates but .not as rapidly as test 1 with the spring installed in the check valve .(a 2-6 psxg        psi increase occurred as a result of the spring removed). The pressure upstream of the pressure regulators PCV-49 and PCV-49A consistently was higher than the downstream pressure        by 54-60 PSIG.      This seemed to indicated that the low pressure nitrogen vaporizer and piping supplying the regulators PCV-49 and PCU-49A was doing its design          function. This drew the conclusion that the regulators were the cause of the immediate pressure drop (under flowin            owing conditions) observed at PI-78. Whether the regulators were either not sized correctly, not set properly, or faulty could not be determined, therefore, EED and NED engineers    decided to rerun the    test.
The  results    from  the particulate    samples  still  indicated  more  particles greater than the    3  micron level than  we  would like to  see  in the  instrument air  system. Figure 1 shows the        pressure  at the instrument air header at various flow rates.
TEST 3 Procedure No..: 73TI-9IA02, Rev. 1 05/19/89 This re'vision of the low pressure nitrogen (GA) backup supply to instrument air (IA) header test specifically tests the operability of the pressure control valves (PCV49, PCV49A and PV41) which supply the low pressure nitrogen header,    allows the setting of these same valves, and tests the system under the same flow rates established during the previous tests (73TI-9IA02, Rev. 0).
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13-MS-A20 COMPRESSED  GAS SYSTEM 'EVALUATION AND ANALYSIS The  test  allowed isolation- of the three pressure          regulators    in various sequences    and allowed for the throttling of the            bypass valve around the regulators PCV49 and PCV49A. 'he results indicated that a flow at over 1000 SCFM    could be obtained from the low pressure N2 system with the high pressure.
nitrogen backup not supplying any nitrogen.        Additionally, the pressure at TPI-1 was 78 PSIG with a flow of 953 SCFM. This extremely high flow was likewise obtained with the high pressure, nitrogen regulator PV41 not supplying any nitrogen. Figure 2 shows the nitrogen system capacity and pressure at the interface with the instrument air system with the bypass valve throttled to maintain a pressure of 115 psig downstream of the regulator.
After obtaining this initial data, each regulator was isolated and cal'ibrated in accordance with the table below at a flow of approximately 200 SCFM.
l                  )  AS FOUND  )  AS LEFT I    RFGULATOR        SETTING        SETTING I              I          . I 2JGAiN-PCV49      98 PSIG      113 PSIG I              I              I 2JGAN-PCV49A      88 PSIG    )  105 PSIG I              I              I 2JGAN-PV41        85 PSIG    I  100 PSIG    I The    original test at the various flow rates of 300, 400, 500, 700, and 900 SCFM    was afterwards    accomplished. The test results      indicated that the nitrogen header just downstream of the regulators dropped off to 108 PSIG with a flow of 289 SCFM and with subsequent higher flow rates the pressure            dropped off to 100 PSIG. Figure 2 shows the nitrogen system capacity and pressure at the instrument air header interface after the regulator adjustment.                  The upstream pressure      of regulators PCV49 and PCV49A remained at 150-160 PSIG.
This indicates that the regulators, even though set under dynamic (flowing) conditions, still drifted down at the high flow rates from their original settings. The pressure at TPI-1 still dropped 16 PSIG at 700 SCFM and dropped 29 psig at 902 SCFM.
After the flow testing, samples were taken of the nitrogen stream and the particulate readings indicated that the quantity of particulates had decreased.
significantly from the previously two tests. There were only 3-5 particles greater than or equal to 5 microns but less than 10 microns . and 105-158 particles greater than or equal to 3 microns but less than 5 microns. The original high number of particles in the low pressure nitrogen system is attributed to the lack -of full flow purging the system during the startup phase.
Conclusions In conclusion, the three tests that were performed on the low pressure nitrogen system indicated . that the nitrogen skid upstream of the pressure regulators GAN-PCV-049, 049A and GA-PC-041 can satisfactorily deliver the anticipated flow of 1000 SCFM at 100 PSIG downstream of the regulator.
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13-MS-A20 COMPRESSED  GAS SYSTEM EVALUATION AND  ANALYSIS However, the regulators and the components downstream of the regulators are not functioning correctly to deliver the maximum desired flow and pressure to meet the IA header demand without operator action.
Pressure    regulator  J-GATV-PCV'-49 currently has an outstanding work order        (V.O.
            )  hich requires removal, inspection, repair and/or replacement of the valve as necessary to ensure that the valve maintains pressure downstream at 115 PSIG + 3 PSIG. The subject valve was adjusted per 73-9IA02, Rev. 1, satisfactorily at flow condition such that the pressure dovnstream is currently within the required range.              The system was then tested to ensure proper operation. Therefore,        it is not necessary to perform M.O. 00334794 as a restart item. -In addition, the subject valves are currently being evaluat e d or replacement with more efficient type regulators as outlined  i belov.e ow.
After evaluating all the test data, the folloving are                  recommended    for resolution of the lov obtained pressures:
For Short Term/Irrmediate Resolution In order to maintain system pressure of 85 PSIG at flov rates in excess of 700 SCFM (during a transient situation) an operator needs to be dispatched            to the ow pressure      control panel and to manually throttle bypass valve GAN-V260 to maintain a pressure of 100-120 PSIG at PI-78.          Important attention must be made    to the fact of not exceeding the high pressure setpoint of 125 PSIG so as to provide a safety margin between line operating pressure and the setting on the pressure safety valve (140 PSIG) and rupture disk (165 PSIG).
For Lone Term Total Resolution
: 1)    Evaluate    setting the regulators (PCV-49, PCV-49A, and PV-41) to a higher setpoint, which will give us a subsequently higher pressure at the high flow rates which had previously dropped off,
: 2)    Evaluate    procurement    and  installation of'egulators  which are guaranteed not to    drift drastically    under various flowrates, and
: 3)  Evaluate    installing    a spring with a small compression            ratio.,    in accordance      with the manufacturers recommendations,        in place of the removed spring from check valve IAN-V056 (EER-89-GA-007), and
: 4)  Additionally, evaluate component by component the design pressure drop (at our desired flow/pressure conditions) of all valves and piping from the nitrogen regulators to the interface where nitrogen backs                      up instrument air and change out any component for which an enhancement is, possible.
: 5)  Install    a filter in the nitrogen line just upstream          of the nitrogen/
instrument air interface to filter out particles greater than 3 microns.
S i te Mod 2 - SM-GA-003 has been developed    to ins tall this fi 1 ter .      This should be installed during an available outage, but this need not be a restart item as there is no specific safety consequences with the present setup.      The modification will enhance the present setup and comply with the intent of Generic Letter 88-14 as        it is ANPP's position    of complying in a timely    manner with  all the  recommendations  of the NRC.
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PRESSURf~I 8 FLOK                                13-HS-A20 Nitrogen system test per 73TX-9IA02 Rev. o            P 'g e 1 I/5 5 fj lUR Figure 1                                              6/to/m 105
  $ 00 95 p  90 I        0 e  85 s        W..
s  80 0
Test no. 2 with the spring removed from check valve I'5 U
Qi 70  Test no. 1.
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PRESSURE              3 FLOW                              13-HS-A20 110                        Nitrogen Test Per Procedure 73TI-9IA02, Rev. 1              Page llG 108 Figure 2 106 104 0--
  $ 02
                                                    -0,
  $ 00 98 Test curve with the regulator bypass 96                                                            throttled to maintain 115 psig downstream P
I  94                                                            of the regulator e  92 S  90 S
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I' 86      Test curve with the regulators                                      '
84 adjusted to required set points and with the bypass clohed 82 80 p
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