Installation and Maintenance Instructions VANESSA …€¦ · 3 Periodical checks have ... Vanessa...

VANESSA

Vanessa Series 30,000Installation and Maintenance Instructions

Pentair reserves the right to change the content without notice VANLT-0006-EN-1305

Installation and Maintenance InstructionsVanessa Series 30,000 - Basic ConfigurationBody Style Double Flanged, Wafer, Lug and Buttweld

Applicable Product Range• Series30,000BasicConfiguration,DoubleFlangedBodyStyle,whichcanbeinstalledbetweentwoflangesorstud-boltedtoeitherflange.

• Series30,000BasicConfiguration,Lug-SingleFlangeBodyStyle,whichmustbeboltedtoeitherflange.

• Series30,000BasicConfiguration,WaferBodyStyle,whichcanbeinstalledbetweentwoflanges.

• Series30,000BasicConfiguration,Buttweldends,whichmustbeweldedtotheline.

SECTION 1Valve Storage

1.1 Preparation and Preservation for Shipment

Allvalvesareproperlypackedinordertoprotectthepartsthataresubjecttodeteriorationduringtransportationandstorageonsite.Inparticular,thefollowingprecautionsshouldbetaken:

1 Thevalvesmustbepackedwiththediscintheclosedposition.Theflangesealingsurfaces(raisedfaces)ofthevalveswillbeprotectedwithsuitableprotectivegrease.Theendfacesofthevalvemustbeprotectedwithplasticorwoodendiscsfixedwithstraps.

2 BareShaftValves:theendsoftheshaftmustbeprotectedwithplastictubes.

3 ValveswithActuators:incaseof“Failopen”pneumatic-hydraulicactuatorswithmanualoverride,themanualoverrideshallbeusedtomanuallyclosethevalvesandtolocktheminposition.Ifthereisnomanualoverride,cutoutsaremadeintheflangeprotectorsforthedisc,andthediscissecurelyprotected.

Allactuatedvalvesmustbesecurelypalletedorcratedwithparticularattention,inordertoensurethatpartsofactuator(especiallypneumaticpipingoraccessories)donotextendbeyondtheskid/crate.

4 ThetypeofpackingmustbedefinedintheCustomer’sOrderandwillbeappropriatetoensuresafetransportationtofinaldestinationandeventualconservationbeforeinstallation.

1.2 Handling Requirements

A-PackedValvesCrates:Liftingandhandlingofthepackedvalvesincrateswillbecarriedoutbyaforklift

truck,bymeansoftheappropriateforkhitches.

Cases:Theliftingofpackedvalvesincaseswillbecarriedoutintheliftingpointsandinthecenterofgravitypositionwhichhavebeenmarked.Thetransportationofallpackedmaterialmustbecarriedoutsafelyandfollowingthelocalsafetyregulations.

B-Unpackedvalves1 Theliftingandthehandlingofthesevalveshastobecarriedoutbyusingappropriatemeansandbyrespectingthecarryinglimits.Thehandlingmustbecarriedoutonpallets,protectingthemachinedsurfacestoavoidanydamage.

2 Withlargedimensionvalves,theslingandthehookingoftheloadmustbecarriedoutbyusingtheappropriatetools(brackets,hook,fasteners,ropes)andloadbalancingtoolsinordertopreventthemfromfallingormovingduringtheliftingandhandling.

www.pentair.com/valves

Vanessa Series 30,000Installation and Maintenance Instructions

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1.3 Storage and Preservation before Installation

Incasethevalveshavetobestoredbeforeinstallation,thestoragehastobecarriedoutinacontrolledway,andhastobeperformedinaccordancetothefollowingcriteria:

1 Thevalveshavetobestockedinaclosed,cleananddrystorageroom.

2 Thediscmustbeintheclosedposition,andtheendfacesmustbeprotectedwithplasticorwoodendiscsfixedwithstraps.Ifpossible,keeptheoriginalprotection.

3 Periodicalcheckshavetobecarriedoutinthestorageareatoverifythattheabovementionedconditionsaremaintained.

NoteStorageinanopenareaforalimitedperiodcanbeconsideredonlyincasethevalveshaveappropriatepacking(packedincaseslinedwithtarredpaper,andcontentswellprotectedwithbarriersacks).

CautionFor valve handling and/or lifting, the lifting equipment (fasteners, hooks, etc.) must be sized and selected while taking into account the valve weight indicated in the packing list and/or delivery note.Lifting and handling must be made only by qualified personnel.

Fasteners must be protected by plastic covers in sharp corner areas.

Caution must be taken during the handling to avoid that this equipment passes over the workers or over any other place where a possible fall could cause damage. In any case, the local safety regulations must be respected.

Figure no. 1a

Figure no. 1b

Lifting and Handling of Valves Installed in Horizontal Pipeline

Lifting and Handling of Valves Installed in Vertical Pipeline

Note

SolutionsAandCareapplicablewhentheprotrusionofthebottomhubfromtheflangeorbodyissufficienttopositionsecurelytheliftingstrap.SolutionsBandDareapplicablewhentheprotrusionofthebottomhubfromtheflangesisNOTsufficienttopositionsecurelytheliftingstrap.InpresenceofsolutionB,insertastudboltandfixitsecurelywithnutsasindicatedinthedrawingdetail.InpresenceofsolutionD,insertaliftingeyeletintheflangethreadedholesclosetothebottomhubandfixitsecurelyasindicatedinthedrawingdetail.

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SECTION 2Installation

2.1 Valve Inspection1 Carefullyremovethevalvefromtheshippingpackage(boxorpallet)avoidinganydamageto

thevalveor,incaseofautomatedvalves,totheelectricorpneumatic/hydraulicactuatororinstrumentation.

2 Thevalvesareshippedwiththeendsprotectedwithcapsandathinlayerofprotectivegrease.Beforeinstallingthevalve,removethecapsandcleancarefully,thende-greasebothsurfaceswithasolvent.Cleantheinsideofthevalveusinganairline.Ensurethattherearenosolidobjectssuchaspiecesofwood,plasticorpackingmaterialswithinthevalveoronthevalveseat.

3 Inspectthesealringtoensurethatitwasnotdamagedduringhandling.Thisisespeciallyimportantincaseofvalvesshippedwiththediscintheopenpositionandwith“fail-open”actuators.

4 Confirmthatthematerialsofconstructionlistedonthevalvenameplateareappropriatefortheserviceintendedandareasspecified.

5 Ensurethatthepackingglandadjustingnutsagainstthepackingglandflangecannotberotatedbyhand.

2.2 Valve InstallationVanessarecommendsthattheoptimumvalveinstallationiswiththeshaftinthehorizontalplane,afterwhichitispreferabletohavetheshaftatananglesoastominimizeanyproblemassociatedwithsolidparticlespresentinthefluidthatotherwisecoulddepositinthelowerbearingarea.

NoteTheVanessavalveisdesignedtowithstanddesigndifferentialpressureinbothdirections.

Isolating applicationsThevalveoperatingtorqueaffectsthesealingperformances.VanessaattachedtheindicationplateΔP(figure2)ontheupstreamflangeasareferenceforthedirectionoftheinstallation.Thebestsealingperformance,alsoforbi-directionalservice,willbemaintainedwhenpressureactsontheshaftsideofthevalve,whichisrecommendedwhentheservicetightnessrequirementsaremorestringentinonespecificdirection.

Control applications (uni-directional, where perfect sealing is not required)Theplatecouldbefixedoneitherflangeindicatingthepreferreddirection.Pleaserespectthedirectionofinstallationindicatedontherelevantflange.Theselectionoftheactuatorhasbeenmadeforthatspecificdirectionofinstallation.

UnlessotherwiserecommendedbyVanessa,thevalveshouldbeinstalledwiththediscintheclosedpositiontoensurethatthesealringinthediscisnotdamagedduringinstallation.Particularcareshouldbetakenwiththosevalvesequippedwith‘fail-open’actuators.Foroperatingtemperaturesabove200°C(392°F)thermalinsulationofthevalvebodyisrecommended.Ifthevalvehasthreadedtappedholesinthehubareas,Vanessarecommendstousehexagonalheadboltsorshorterstudstoconnectthevalveinthiszone.ThedepthofthetappedholesinthebodiesofallSeries30,000valvesisspecifiedinthetechnicalliterature.Failuretousecorrectbolts/studsmayresultindamagetothevalve.Ifthevalvehasweldedends,perfectlycleananddegreasetheendstobewelded(ofbothvalveandpipe),usingaclothwithacetoneorsimilarproduct.Insertcorrectlythevalvebetweentheedgesofthepipetobewelded,takingcareoftheplatethatindicatesthepreferentialsideforsealing.Carryoutaninitialaccuratespotweldingverifyingtheperfectalignmentoftheedgeandaxisofthevalve.Carryouttheweldingoftheedgeproceedinginalternatewayonbothsidestoreducethetensionsintroducedbythewelding.Itisimportanttorespecttheinterpasstemperaturewhichmustnotgoabove150°C(302°F).HandlingandliftingofthevalvesduringinstallationMUSTbeperformedfollowingthesamecriteriaandinstructionsdescribedinpreviouspoints“1.2HandlingRequirements”and“1.3StorageandPreservationbeforeInstallation”.

Important

Itisrecommendedtoperformpipingflushingbeforeinstallationofvalve.Ifthisisnotpossible,thevalvesmustbesetwiththediscinfullopenpositionbeforestartingwithflushing.

CautionsWhen the pipe is lined, be careful that the disc does not come into contact with the lining during its stroke, especially in Lug and Wafer body styles. This verification is very important to avoid any damage to the valve.

Figure 2

Important

Thevalvetrimisdesignedtowithstandandtosealagainstthedesigndifferentialpressuremarkedonthevalvenameplatewhichdataaresuppliedtogetherwiththepresentdocument.Sinceitisimpossibletomaintaincompletecontrolontheexternalinputforcestothetrimcomingfromgear/actuator,thevalvetrimshallnotbeusedasafinalprotectivemeanagainstthehazardcausedbytheclosedvalveupstreampressure.

Vanessa Series 30,000Installation and Maintenance Instructions

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2.3 Valve Verification1 Tightenthepackingjustenoughtopreventstemleakage.Over-tighteningwilldecreasepacking

lifeandincreaseoperatingtorque.2 Checktheoperationofthevalvebystrokingitto“fullopen”and“fullclose”.Toverifythevalve

orientation,thediscpositionindicatormarkontheshaft(duringthenormalopentoclosecycle)shouldrotateclockwisefromapositioninlinewiththepipe(seefigure3a)toapositionparalleltothepipeflanges(seefigure3b).

Important

Ifpipingsystemispressurizedwithwaterfortesting,andincasethepipingsystemhasbeenshutdownaftertestingforalongtime,thefollowingrecommendationsshouldbeadopted:

a.Usecorrosioninhibitorwithwatertopressurizethepipingsystem.b.Aftertesting,thepipingsystemshouldbedepressurizedandthetestwatercompletely drained.c.Aftertesting,valvesmustbemaneuveredthroughacompleteopening/closingcycle anddiscleftinhalf-openposition.Applyafilmofprotectiveoilinthepackingareaby meansofapaintbrush.Theprotectiveoilmustfilltheareabetweenshaftand packingbushing.

Figure no. 3A

Figure no. 3B

Clockwisetoclos

e

Clockwisetoclos

e

Shaftkey

Discinopenposi

tion

Discinclosedpo

sition

Discposition

indicatormark

Disc-shaftkeya

ndposition

indicatormarkplane

Disc-shaftkeya

ndposition

indicatormarkplane

Discposition

indicatormark

Shaftkey

Vanessa Series 30,000Installation and Maintenance Instructions

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2.4 Troubleshooting Guide

Symptom Possible Cause Resolution

Valvewon’trotate 1. Packingistootight 1. Loosenglandnuts 2.Actuatorhasfailed 2.Replaceorrepair 3.Valvepackedwithdebris 3.Flushorcleanvalvetoremovedebris 4.Stemkeyhassheared 4.Determinecauseofshearingandcorrectlyreplacestemkey 5.Fluidsolidificationbetweenbearings 5.Flushbearingsbyflushingholes(ifpresent) andshaft

Stempackingleaking 1. Glandflangenutstooloose 1. Tightenglandflangenuts 2.Packingdamaged 2 Replacepacking-SeeParagraph3.1

Bottomflangegasketleaking 1. Bottomflangeboltingloose 1. Tightenbottomflangebolting 2.Spiralwoundgasketdamage 2.Replacegasket-SeeParagraph3.3

Valveleaking 1. Valvenotfullyclosed 1. Closevalve 2.Debristrappedinvalve 2.Cycleandflush(withvalveopen)toremovedebris 3.Actuatormechanicalstopsimproperlyset 3.Removethestopforclosureandresetproperly 4.Sealringdamaged 4.Replacesealring-SeeParagraph3.2

Jerkyoperation 1. Packingistootight 1. Loosenglandnuts,cyclevalve,retighten 2.Airsupplyinadequate 2.Increaseairsupplypressureand/orvolume 3.Actuator/stemadaptermisaligned 3.Removeactuatormountingandrealign.

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Warning!

Depressurizethelinebeforestartinganymaintenance.Failuretodosomaycauseseriouspersonalinjuryand/orequipmentdamage.

SECTION 3Maintenance

TheVanessaSeries30,000hasbeendesignedtorequireaminimumofmaintenance.

3.1 Packing MaintenanceIfshaftleakageisobservedthroughthepacking,tightentheglandnutsslowlyandevenlyuntiltheleakagestops.

CautionDo not over-tighten packing gland nuts. Over-tightening will increase the torque required to operate the valve.When tightening the gland nut, use half-turn increments until leakage has stopped.

PleaserefertotheFigureno.4.Toreplacethepackingproceedasfollows:1 Removethegear/actuatorandrelevantconnectingkeys(4f).Pleasenotetheactuatorposition

relativetothevalvepositionforreassemblyofgear/actuatorlater.2 Removeglandnuts(5d).Ifpresent,removebellevilIesprings(5n),takingcareofnotingtheir

assemblyconfigurationtoreassemblethemcorrectly(point7).3 Removepackingglandflange(5f),antiblow-outringifpresent(5g),andglandbushing(5c).4 Removepacking(5a).Ifvalveiswithpackingflushoption,removelanternringalso(5h).5 Carefullycleanpackingcavityandshaft(4a).6 Applyathinfilmoflubricantoneachnewpackingring(5a)surfaces(lubricantshouldbein

accordancewithTableIV).Insertnewpackingrings,payingattentiontoinsertthetwobraidedringsatthebottomandtopoftheentirepacking.Ifvalveiswithpackingflushoption,insertthelanternring(5h)inthesamesequenceaspreviouslyremoved(orasindicatedinfigure4).Ifthepackingringsareofthesplitvariety,installwithsplitsstaggeredat180°fromeachother.

7 Reassembleglandbushing(5c),antiblow-outringifpresent(5g),andglandflange(5f).Ifpresent,assemblethebellevillesprings(5n),followingtheassemblyconfigurationnotedinthepreviouspoint2,thenassemblebyhandtheglandnuts(5d)withouttightening(afterapplyingathinfilmoflubricantonthethreadsofthestudbolts,inaccordancewithTableIV).

8 Reassemblekeys(4f)ontheupperstemend.9 Reassemblegear/actuatorandclosethevalve.

CautionDo not force actuator on the stem! This should be a free moving fit.

10 Tightenglandnuts(5d)inaccordancetoTableI(Torquevaluesforglandnuts).11 Cyclethevalve.12 Pressurizeagaintheline.13 Ifaleakageisdetected,tightentheglandnutsslowlyandevenlyuntiltheleakagestops.

Figure no. 4

Vanessa Series 30,000Installation and Maintenance Instructions

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3.2 Sealing Elements Maintenance

Toreplacethesealingelementsproceedasfollows(pleaserefertofigureno.5):

Warning!

Depressurizethelinebeforestartinganymaintenance.Failuretodosomaycauseseriouspersonalinjuryand/ordamagetothevalve.

1 Removethevalvewiththediscintheclosedpositionfromline.Cleanthevalveaccordingtopropercleaningprocedureasoutlinedbytheplantoraccordingtoarecommendedprocedure.

2 Openthevalveafewdegrees.3 Loosenthesealretainerringscrews(2c).4 Openvalvetofullopenposition.

NoteInsmallsizevalvesitmaybeeasiertounbolttheactuatorandrotatethediscbeyondthefull-openpositiontoprovidemorespacetoworkwithcomponents.

Figure no. 5

5 Carefullyremovetheretainerringscrews(2c)withsecuritywashers(2d),thenremovethesealretainingring(2b).

6 Removesealring(3a)andspiralwoundgasket(3b).7 Inspectthebodyseat.Cleanit,ifnecessary,withfineabrasivecloth(No.600orfiner),after

havingcleaneditperfectlywithsolvent.8 Inspectandcleanthediscsealringareaandspiralwoundgasketgroove.Noforeignparticles

mustbepresentbeforespiralwoundgasketandsealringassembly.9 Applyathinfilmoflubricantonthesurfaceareaofthedisc(2a)wheresealring(3a)andspiral

woundgasket(3b)willbelocated(lubricantshouldbeinaccordancewithTableIV).

CautionApply only a thin film of lubricant where indicated. Failure to do so will hinder the assembly and may cause damage to the valve.

10 Assemblethenewspiralwoundgasket(3b)inthediscgroove,withoutforcingandtakingcarenottodamageit.

11 Replacesealring(3a)onthediscthroughtheshaftsideofthebody.Toproperlylocatethesealring,therearetwodifferentsolutions:

•solution1-ref.tofigureno.6a-aligntheinternalslotofthesealring(3a)tothereferencepin(F). •solution2-ref.tofigureno.6b-alignthereferencemark(C)onthesealring(3a)withthe

relevantreferencemark(D)onthedisc.12 Assemblethesealretainerring(2b).Therearetwodifferentsolutionsasperpreviouspoint11: •solution1-ref.tofigureno.6a:makesurethattheslotontheedgeofthesealretainerring (B)

isincorrespondencewithreferencepin(F). •solution2-ref.tofigureno.6b:ensuretolocatethehole(E)ofthesealretainerringwiththe

relevantmarksonthedisc(D)andsealring(C).13 Handtightenallthefasteningscrews(2c),withrelevantlockwashers(2d)afterapplyingLoctite®

270orequivalentonthebottomsideofthethreads(theyhavetobeperfectlycleanedwithsolventbeforeapplyingLoctite®).Then,verifythatthesealringcanbemovedfreelybyhandwithoutrotatingit.

14 Applyathinfilmoflubricanttothebodyseatandtotheexternaledge(sealingconicalsurface)ofthesealring(3a).LubricantshouldbeinaccordancewithTableIV.

15 Seatandunseatthevalvetwice.16 Keepthevalveintheclosedpositionwithoutapplyingtorque.Tightenatleasttworetaining

screws(2c)toavoidthesealringmovingfromthepositionfound.

Vanessa Series 30,000Installation and Maintenance Instructions

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17 Openthediscafewdegreesandtighten,usingatorquewrench,allscrews(2c).UseatorquevaluefromTableIIIforvalvesaccordingtosolution1(ref.tofigureno.6a).UseinsteadatorquevaluefromTableIIforvalvesaccordingtosolution2(ref.tofigureno.6b).

Itisrecommendedtousethecrossovermethodtotightenallretainingscrews.

Important!

• Solution 1- ref. to figure no. 6a:Thesealringissuppliedwithanindexmarking(A).Afterthecompleteassembling,verifythattheindexmarking(A)canbeseenintheslot(B)ofthesealretainerflange.Slot(B)andmarking(A)havetobeperfectlyaligned.Ifnotvisibleornotaligned,loosentheretainingscrews,re-aligntheindexmarkingandstartagaintheprocedurefrompoint12.

• Solution 2 - ref. to figure no. 6b:Thesealringandthediscarecompletedwithtworeferencemarkings,(C)and(D).Afterthecompleteassembling,verifythatbothmarkingscanbeseenthroughthehole(E)ofthesealretainerflange.Thetwomarkingshavetobeperfectlyaligned.Ifnotvisibleornotaligned,loosetheretainingscrews,re-aligntheindexmarkingsandstartagaintheprocedurefrompoint12.

3.3. Bottom Flange Gasket MaintenanceIfnecessarytoreplacethebottomspiralwoundgasket,proceedasfollows(seefig.no.7):

1 Removethebottomflange(6a).2 Removethespiralwoundgasket(6c).3 Inspectandcleanthegrooveofthespiralwoundgasketinthebodyandinthebottomflange.4Applyathinfilmoflubricantonthebottomspiralwoundgasket(6c),theninsertitonthebottom

flange(6a),centeringandpositioningallonthebodybore(lubricantshouldbeinaccordancewithTableIV).Rotatethebottomflangetoaccommodatethecorrectpositionandcentertheholeswiththethreadedholesonthebody.

5Applyathinfilmoflubricantonthethreadsofthescrews(6b),thenintroduceandtightenthemusingatorquevaluefromTableIII(lubricantshouldbeinaccordancewithTableIV).

Figure no. 6a

Figure no. 7

Figure no. 6b

4.1 Bearing & Packing Flushing

4.1.1 Bearing FlushingThebearingflushingoptionisobtainedbyaddingtwotappedholes,oneinthebottomflangeandoneintheneckofthevalve(seefig.9).Thisoptionincludestheintroductionofalanternringatthebottomofthevalvepacking.Bearingflushingisrecommendedwhenthevalveisinstalledinaservicewheretheparticlespresentinthefluidorthelinefluiditselfcanmigrateintotheshaft/bearingareacausingproblems.Atypicalexampleissulphurrecoveryservices,wherethesulphurinaliquidorgaseousstatemayenterthisareaandcrystalliseasaconsequenceoftheplantshutdown.

Thiscrystallisationmayresultinanincreaseinthetorquerequirementofthevalve.Anotherexamplemaybeafluidthatcontainsparticles(e.g.catalyst)thatmaycausesimilarproblemstothosehighlightedabove.Inthesetypesofsituationsthebearingflushingmaybeusedtointroduceaninertfluidcompatiblewiththeprocessviathebearingflushtaps(seefig.8)soastocreateapressurebarrierwhichpreventstheintroductionoftheunwantedproductsfromthelineintotheshaft/bearingarea.Thepressureoftheflushingfluidmustbeslightlyhigherthanthelinepressure(i.e. P1 +approx 5%).Thisbothactsasasafetymeasureandisapositivestepinincreasingthelifetimeofthevalve,aswellasmaintainingtheconstanttorquerequirementandhenceoperabilityofthevalve.Thebearingsmaybecontinuouslyflushed,thisisrecommendedbyVanessaforcriticalservicessuchasdescribedabove.Periodicflushingmaybeusedforlesscriticalservicesinordertocleanthebearing/shaftinterfaceorinordertopreparethevalveforashutdownoftheprocess.Thebearingflushtapsmayalsobeusedtointroducealubricantcompatiblewiththeprocesstothebearingareasforhighcycleordrygasservice.Thepresenceofthebearingprotectordrasticallyreducestheconsumptionoftheflushingorlubricantbyreducingtheamountoffluidrequiredtogiveefficientservice(seefig.8).FurtherinformationisavailablefromVanessaonrequest.

Vanessa Series 30,000Installation and Maintenance Instructions

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SECTION 4Standard Options

Thissection(4)isreferredonlytoVanessaproductsconfiguredwiththefollowingoptions:-bearing&packingflushing,-liveloadedpacking.

Figure no. 8

Figure no. 9

Thebearingprotectorminimizestheconsumption

ofthecleanfluid

Upperflushinginlet

Lowerflushinginlet

Upperbearingflu

shing

connection

Lowerbearingflu

shing

connection

Packingflushing

connection

Discside

Shaftside

Flushpressure=P+5%

Vanessa Series 30,000Installation and Maintenance Instructions

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Figure no. 10

4.1.2 Packing Flushing

Thepackingflushingoptionisobtainedbytheintroductionofatappedholethatcommunicatesdirectlytothepackingsetintheneckofthevalveviaalanternring.Thisoptioncanbeusedtomonitortherateofemissionofthelinefluidtowardtheatmosphere(itisimportanttopointoutthatthepackingoftheVanessavalvefullycomplieswithTALuftandEPArequirements).Thisflushtapmayalsobeusedtocaptureandevacuatelinefluidsoastopreventanyatmosphericloss,withthelanternringandsplitpackingconfigurationactingasadoubleblockandbleedunit.

Asuitablefluidmayalsobeintroducedviathepackingflushtapintothepackingareasoastoeliminateanypossiblefugitiveemissions(seefig.9).Bykeepingthefluidpressurisedatapressurethatishigherwithrespecttothelinepressure,thepassageofanylinefluidtowardstheatmospherecanbeeffectivelyblockedgivingthevalveexcellentfugitiveemissionscontrol.However,thefluidusedmustbecompatiblewiththelinefluidasitmayhavethepossibilityoffindingitswayintothelineaswellastowardtheatmosphere.

Aswiththebearingflushingoptionthismayalsobeusedtointroducealubricantcompatiblewiththeprocess.

Thetypeoflubricantusedforflushingisattheclients’care.Vanessamaybecontactedtosupplyfurtherdetailed,processspecificinformation.

4.3 Live Loaded PackingTheliveloadedpackingoptionisdesignedtosupplementthealreadyexcellentcharacteristicsoftheVanessavalvepacking.ThisoptionguaranteesaconstantcompressionofthepackingsetgivingafurtherguaranteeofthefugitiveemissionscontroloftheVanessavalve.ThefactthatthepackingissubjecttoanearconstantforcesuppliedbytheBellevillewashersreducesthemaintenancecyclerequiredbythepacking(seefig.10).

CareshouldbetakeninreplacingtheBellevillespringsastheirorder(parallelorseries)shouldbenoted.ThepackingnutsshouldbetightenedinaccordancewithTableI.

AtthispointitisworthmentioningthattheTALufttesthasshownthattheVanessaSeries30,000 std.Packingismorethanadequateinpassingitsstringentrequirements.

Theliveloadedpackingoptionshouldbeconsideredinvalvesthataresubjecttoseverecyclingdutyorvalvesthataresubjecttoseverethermalcycles.Thedrawingshowstypicalsetupsfortheliveloadedpackingoption.

3 80 - - 15 11 15 11 30 22 - -4 100 - - 15 11 15 11 30 22 - -6 150 - - 15 11 20 15 35 26 50 378 200 - - 15 11 20 15 60 44 105 7810 250 - - 25 18 20 15 70 52 135 10012 300 - - 25 18 25 18 75 55 240 17714 350 - - 30 22 30 22 75 55 240 17716 400 - - 30 22 35 26 100 74 175 12918 450 - - 35 26 40 30 205 151 480 35420 500 - - 35 26 45 33 320 236 195 14424 600 - - 45 33 55 41 420 310 605 44628 700 30 22 85 63 100 74 465 343 - -30 750 30 22 105 78 135 100 485 358 - -32 800 30 22 105 78 165 122 505 372 - -36 900 30 22 110 81 220 162 545 402 - -40 1000 30 22 110 81 225 166 - - - -42 1050 30 22 110 81 230 170 - - - -48 1200 30 22 110 81 235 173 - - - -54 1350 50 37 155 115 - - - - - -60 1500 65 48 160 118 - - - - - -64 1600 65 48 - - - - - - - -72 1800 65 48 - - - - - - - -84 2100 65 48 - - - - - - - -

8 12 9 10 24 18 12 41 30 14 66 49 16 103 76 18 142 105 20 201 148 22 274 202 24 348 257

6 10 7 8 20 15 10 45 33 12 70 52 14 110 81 16 175 129 18 235 173 20 335 247 22 370 273 24 460 339 27 595 439 30 760 561 33 785 579 36 1010 745 39 1315 970 42 1625 1199 45 2035 1501

Vanessa Series 30,000Installation and Maintenance Instructions

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Table I: Torque Values for Gland Nuts

ND Trim A Trim B Trim C Trim D Trim E

in. mm Nm FT-LB Nm FT-LB Nm FT-LB Nm FT-LB Nm FT-LB

Note:Thetorquevaluesarethosesuggestedforthehydraulictestofthebody.

Table II: Tightening Torque Values

for Bolts & Screws

Bolt Dimensions Torque Values

(mm) Torque (Nm) Torque (Ftlb)

Table III: General Torque Values

for Bolting

Bolt Dimensions Torque Values

(mm) Torque (Nm) Torque (Ftlb)

Table IV: Lubrication

Type Component to Lubricate

Lightmineraloil 1. PackingRings(5a) 2.DiscSurfaceareas(2a)forSealRingand SpiralWoundGasketlocation 3.SpiralWoundGasket(6c)

Molykote®-P74(grease) 1. StudBolts/Nuts(5d)orequivalent 2.Screw(6b)

Molykote®Spray-321R(drylubricant) 1. SealRing(3a)orequivalent 2.BodySeat