Burkert 2060 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 2060
INOX
2/2-way angle seat valve
2/2-Wege Schrägsitzventil
Vanne à siège incliné 2/2 voies

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2020
Operating Instructions 2012/00_EU-en_00815367 / Original DE

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1 OPERATING INSTRUCTIONS............................................... 4
1.1 Symbols....................................................................... 4
1.2 Denitionoftheterm“device”..................................... 4
2 INTENDED USE .................................................................... 5
3 BASIC SAFETY INSTRUCTIONS.......................................... 5
4 GENERAL NOTES................................................................. 6
4.1 Contactaddress.......................................................... 6
4.2 Warranty ...................................................................... 6
4.3 InformationontheInternet.......................................... 6
5 PRODUCT DESCRIPTION .................................................... 7
5.1 Generaldescription ..................................................... 7
5.2 Properties .................................................................... 7
6 TECHNICAL DATA................................................................. 7
6.1 Conformity................................................................... 7
6.2 Standards .................................................................... 7
6.3 Operatingconditions ................................................... 7
6.4 Generaltechnicaldata................................................. 9
7 STRUCTURE AND FUNCTION ........................................... 10
7.1 Design ....................................................................... 10
7.2 Function..................................................................... 10
8 INSTALLATION .................................................................... 11
8.1 Safetyinstructions..................................................... 11
8.2 Beforeinstallation...................................................... 11
8.3 Installation ................................................................. 12
8.4 Pneumatic connection............................................... 14
9 START-UP............................................................................ 15
9.1 Safetyinstructions..................................................... 15
10 MAINTENANCE, CLEANING .............................................. 15
10.1 Safetyinstructions..................................................... 15
10.2 Maintenance work ..................................................... 16
10.3 Cleaning .................................................................... 16
10.4 Recommendedauxiliarymaterials ............................ 16
11 MAINTENANCE................................................................... 17
11.1 Replacingthevalveseat ........................................... 17
12 FAULTS................................................................................ 20
13 SPARE PARTS..................................................................... 21
14 TRANSPORTATION, STORAGE, DISPOSAL ...................... 22
Contents
Type2060 INOX
English

4
Operating instructions
1 OPERATING INSTRUCTIONS
Theoperatinginstructionsdescribetheentirelifecycleofthedevice.
Keeptheseinstructionsinalocationwhichiseasilyaccessibleto
every user and make them available to every new ownerof the
device.
The operating instructions contain important safety
information!
Failuretoobservetheseinstructionsandnotesmayresultin
hazardoussituations.
▶Theoperatinginstructionsmustbereadandunderstood.
1.1 Symbols
DANGER!
Warns of an immediate danger!
▶Failuretoobservetheseinstructionswillresultindeathor
serious injuries.
WARNING!
Warns of a potentially hazardous situation!
▶Failure to observe these instructions may result in serious
injuriesordeath.
CAUTION!
Warns of a potential danger!
▶Failuretoobservetheseinstructionsmayresultinmoderate
or minor injuries.
NOTE!
Warns of damage to property!
▶Failuretoobservetheseinstructionsmayresultindamageto
thedeviceorthesystem.
Indicatesimportantadditionalinformation,tipsand
recommendations.
Referstoinformationintheseoperatinginstructionsorin
otherdocumentation.
→Designatesaprocedurethatyoumustcarryout.
1.2 Denition of the term “device”
Theterm“device”usedintheseinstructionsalwaysstandsfor
theangleseatvalvetype2060INOX.
Intheseinstructions,theunitbarstandsforrelativepressure.
Theabsolutepressureisindicatedseparatelyinbar(abs).
Type2060 INOX
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Intended use
2 INTENDED USE
Improper use of the Type 2060 INOX Angle Seat Valve
(referred to as the device in the following) may result in
hazards to people, nearby equipment and the environment.
▶Thedeviceisdesignedtocontroltheowofliquidand
gaseousmedia.
▶Inpotentiallyexplosiveenvironments,thedevicemustonlybe
usedinaccordancewiththespecicationsontheseparateEx-
typelabel.Theadditionalinformationandsafetyinstructions
relatingtoExareasenclosedwiththedevicemustbeadhered
towhendeployingthedevice.
▶DeviceswithoutaseparateExtypelabelmustnotbeusedin
thepotentiallyexplosiveatmosphere.
▶Whenusingthedevice,observetheauthoriseddata,opera-
tingconditionsanddeploymentconditionsspeciedinthe
contractdocumentsandintheoperatinginstructions.These
aredescribedinChapter“6Technicaldata”.
▶Usethedeviceonlyinconjunctionwiththird-partydevices
andcomponentsrecommendedorapprovedbyBürkert.
▶Prerequisitesforsafeandtrouble-freeoperationinclude
correcttransport,storageandinstallationaswellascareful
operationandmaintenance.
▶Onlyusethedeviceforitsintendedpurpose.
3 BASIC SAFETY INSTRUCTIONS
Thesesafetyinstructionsdonottakeaccountofany
•contingencies or events which may occur during installation,
operationandmaintenanceofthedevices;
•localsafetyregulationsthatarewithintheoperator’sscopeofres-
ponsibility,includingthoserelatingtotheinstallationpersonnel.
Danger from high pressure!
▶Beforelooseninglinesorvalves,switchothepressureand
bleedthelines.
Risk of crushing due to moving pneumatic port!
▶Donottouchthemovingpneumaticportwhenopeningand
closingthedevice.
▶Donotreachintotheareadirectlyaboveandbelowthepilot
airport.
Risk of pressure surge ow with ow direction above the
seat!
•Becauseoftheriskofpressuresurge,angleseatvalveswiththe
owdirectionabovetheseatmustnotbeusedforuidmedia.
Risk of burns/re due to hot device surface if device operated
continuously!
▶Donottouchthedevicewithyourbarehands.
▶Keepthedeviceawayfromhighlyammablesubstancesand
media.
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General notes
General hazardous situations.
Observethefollowingtopreventinjury:
▶Feedonlythosemediaintotheuidconnectionsthatare
listedinthechapter“Technicaldata”.
▶Donotplacethehousingundermechanicalstress(e.g.by
placingobjectsonitorstandingonit).
▶Makesurethesystemcannotbeactivatedunintentionally.
▶Onlytrainedtechnicianscarryoutinstallationandmainte-
nance work.
▶Afterinterruptionoftheelectricalorpneumaticsupply,
ensureadenedorcontrolledrestartoftheprocess.
▶Operatethedeviceonlywhenitisinperfectconditionandin
accordancewiththeoperatinginstructions.
▶Thegeneralrulesoftechnologyapplytoapplicationplanning
andoperationofthedevice.
4 GENERAL NOTES
4.1 Contact address
Germany
BürkertFluidControlSystems
Sales Centre
Christian-Bürkert-Str.13–17
D-74653Ingelngen
Tel.+49(0)7940-1091111
Fax+49(0)7940-1091448
E-mail:[email protected]
International
Thecontactaddressescanbefoundonthebackpagesofthe
printedoperatinginstructions.
Theyarealsoavailableonlineat:country.burkert.com
4.2 Warranty
Apreconditionforthewarrantyisthatthedeviceisusedas
intendedandthatthespeciedconditionsofusearetakeninto
account.
4.3 Information on the Internet
OperatinginstructionsanddatasheetsforType2060INOXcanbe
foundontheInternetat:country.burkert.com
Type2060 INOX
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Product description
5 PRODUCT DESCRIPTION
5.1 General description
The2/2-wayangleseatvalveType2060INOXissuitableforliquid
andgaseousmedia.
Itusesneutralgasesorair(controlmedia)tocontroltheowof
mediasuchaswater,alcohol,oil,fuel,hydraulicuid,salinesolution,
lye,organicsolventandsteam(owmedia).
5.2 Properties
•Without leakage.
•Highowvalues.
•Controlairconnectioncentralandcontinuouslyrotatable
through 360°.
•Visualpositionindication
•Nomaintenance
5.2.1 Restrictions
Duetothedangerofapressuresurge,theangleseatvalvemust
notbeusedforliquidmediawhentheowisabovetheseat!
6 TECHNICAL DATA
6.1 Conformity
TheangleseatvalveType2060INOXconformstotheEUdirectives
aspertheEUDeclarationofConformity.
6.2 Standards
The applied standards as used to verify compliance with the
EUDirectivescanbefoundintheEUtypeexaminationcerticate
and/ortheEUDeclarationofConformity.
6.3 Operating conditions
6.3.1 Permitted temperatures
Ambienttemperature: 0°C–+60°C
Mediumtemperature: 0°C–+200°C
The angle seat valve is autoclavable.
Thepilotairportmustberemovedforthis.
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Technical data
Derating pressure and temperature ranges
Usagelimitsofthevalve(deratingoperatingpressure)
Temperature operatingpressure
150°C 14.8bar
200°C 13.7bar
Tab. 1: Derating the operating pressure as per ASMEB16.5/
ASMEB16.34Cl.150
Temperature operatingpressure
-10–+50°C 14bar
100°C 14bar
150°C 13.4bar
200°C 12.4bar
Tab. 2: Derating the operating pressure as per JISB222010K
0 20 40 60 80 100 120 140 160 180 200
50
60
140
130
120
110
100
90
80
70
Ambient temperature [°C]
Medium temperature [°C]
Figure 1: Derating VA actuator INOX ANTG32
6.3.2 Pressure ranges
WARNING!
Risk of medium leak and bursting.
Exceedingthepermissibleoperatingorcontrolpressurecan
leadtoleakageandburstingoflinesordevices.
WithcontrolfunctionB,toolittlepilotpressurecancausea
leak.
▶Donotexceedoperatingpressureandcontrolpressure.
▶WithcontrolfunctionB,adheretotheminimumpilotpres-
sureof4bar.
Type2060 INOX
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Technical data
Thefollowingproduct-specicpressureinformationisprovided
onthetypelabel.
PilotpressureforcontrolfunctionB:4bar
6.3.3 Media
WARNING!
Risk of injury due to burst lines caused by a pressure surge!
Ifthevalvewithowdirectionabovetheseatisusedforliquid
media,apressuresurgecancausethelinesanddeviceto
burst.
▶Donotusevalveswithowdirectionabovetheseatfor
liquidmedia!
Controlmedium: Neutralgases,air
Flowmedia: Water,alcohols,oils,fuels,hydraulicuids,saline
solutions,lyes,organicsolvents,vapour,air,
neutral gases.
6.4 General technical data
6.4.1 Inscription on the type label
Flowdirection
Seal material
Flow
coecient
Controlfunction(CF)
Type
Permittedambienttemperature
Forderating,pleaserefertotheope-
ratinginstructions,
Identicationnumberofdevice
Manufacturecode
CEmarking(ifapplicable)
Permissiblemediumpressure,permissible
pilotpressure
Figure 2: Example of a type label
Type2060 INOX
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Structure and function
6.4.2 Materials
Valvebody   Stainlesssteel316L
Actuator Stainless steel 1.4404
Sealing elements FKM
Spindleseal   PTFEV-ringswithspringcompensation
       (withsiliconegrease)
Seatseal    PTFE
Spindle    Stainlesssteel1.4401/1.4404
6.4.3 Ports
Pilotairport   45°hoseconnector4/2M5
(recommendation) Orderno.903383
Mediumconnection G3/8andNPT3/8-Socketconnection
G1/2-Malethread
Weldingsocketacc.toENISO1127/ISO
4200,DIN11850series2,ASMEBPE.
Otherconnectionsonrequest
6.4.4 Installation position
Any,preferablyactuatorfaceup.
7 STRUCTURE AND FUNCTION
7.1 Design
Theangleseatvalveconsistsofapneumaticallyoperatedpiston
actuatorwithopticalpositionindicatoranda2/2-wayvalvehousing.
7.2 Function
Dependingonthevariant,thevalveisclosedagainstthemedium
ow either with spring action (control function A, CFA) or pilot
pressure(controlfunctionB,CFB).
Spring action (CFA) or pneumatic pilot pressure (CFB) generate
theclosingforceontheswivelplate.Forceistransmittedthrough
aspindleconnectedtothepistonactuator.
Flow direction below seat:
Because the operating pressure is below the swivel plate, the
pressurehelpsopenthevalve.Theowisunderthevalveseat.
MinimumcontrolpressureforCFBthatiseithertooloworwhich
exceedsthepermittedoperatingpressurecancauseleaks.
7.2.1 Control functions
Control function A (CFA)
Closedbyspringactioninrestingposition.
Control functionB (CFB)
Openedbyspringactioninrestingposition.
Type2060 INOX
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Installation
8 INSTALLATION
8.1 Safety instructions
DANGER!
Risk of injury from high pressure in the system!
▶Beforelooseninglinesorvalves,switchothepressureand
bleedthelines.
WARNING!
Risk of injury due to improper installation!
▶Installationmaybecarriedoutbyauthorisedtechnicians
onlyandwiththeappropriatetools!
Risk of injury due to unintentional activation of the system
and uncontrolled restart!
▶Secure the system against unintentional activation.
▶Followinginstallation,ensureacontrolledrestart.
Risk of crushing due to moving pneumatic port!
▶Donottouchthemovingpneumaticportwhenopeningand
closingthedevice.
▶Donotreachintotheareadirectlyaboveandbelowthepilot
airport.
8.2 Before installation
•Anyinstallationpositionoftheangleseatvalveispossible,but
preferablytheactuatorisfacingupward.
•Ensurethat(de-energized)pipelinesarealignedbeforecon-
necting the valve.
•Noteowdirection!
See “Figure3”.
Labelling
forconnectionsonthe
valvebody
Flowdirectionindicatoron
thetypelabel.
Flow 1 2
2060 A 10,0 PTFE VA
Made in Germany
00182076 W1X LU
G3/8 P
med 16 bar
Pilot 5,5 - 10 bar
Example:
Figure 3: Labelling for connections / ow direction
8.2.1 Preparatory tasks
→Clearimpuritiesfrompipelines(sealmaterial,metalchips,etc.).
Welded connection:
→Removetheactuatorbeforeweldinginthevalvebody(see
Chapter“8.3.1”).
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Installation
8.3 Installation
8.3.1 Remove actuator from the valve body
(only for welded connections)
WARNING!
Risk of injury due to damaged devices!
Doingassemblyworkwiththewrongtoolscandamagethe
device.
▶Toremovetheactuatorfromthevalvebody,useanopen-
endwrench,neverapipewrench.
Control functionA:
→Applycompressedair(5.5bar)tothepilotairportsothatthe
swivelplateliftsothevalveseatandisnotdamaged.
Control functionB:
Nocompressedairneedstobeappliedforinstallationforcontrol
functionB.
NOTE!
Damage to the seat seal or seat contour!
▶Whenremovingtheactuator,thevalvemustbeintheopen
position.
→Remove the actuator from the valve body in the open valve
positionusingaopen-endwrench(see“Figure4”).
Visualpositionindicator
Yellow=valveopen
Actuator
Wrenchatforopen-endwrench
(hexagonhead)
Valvebody
Figure 4: Disassemble actuator
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13
Installation
8.3.2 Install valve body into pipeline
For welded connections:
→Weldorbondvalvebodyinpipelinesystem.
→Checkgraphitesealandreplaceifrequired.
Graphiteseal
Figure 5: Graphite seal
Forotherbodyvariants:
→Connectvalvebodytopipeline.
8.3.3 Installing actuator on valve body
DANGER!
Risk of explosion due to incorrect lubricants!
Unsuitablelubricantmaycontaminatethemedium.Thereisa
riskofexplosioninoxygenapplications.
▶Forspecicapplications,e.g.oxygenoranalysisapplica-
tions,useapprovedlubricantsonly.
WARNING!
Risk of injury due to damaged devices!
Doingassemblyworkwiththewrongtoolscandamagethe
device.Thesameappliesifthetighteningtorqueisincorrect.
▶Toremovetheactuatorfromthevalvebody,useanopen-
endwrench,neverapipewrench.
▶Observethetighteningtorque(40±3Nm)
→Beforere-installation,greasethepipethreadoftheactuator
(e.g.usingKlüberpasteUH196-402fromKlüber).
→For control functionA:Applycompressedairtothepilotair
port(5.5bar)sothattheswivelplateliftsupfromthevalveseat
andisnotdamagedduringthescrew-inprocess.
→Screwtheactuatorintothevalvebody.
Observethetighteningtorque(40±3Nm)!
Ifthepositionofthepilotairportisunfavourablefor
mountingthehose,itcanbeseamlesslyalignedby
turningthedrive360°.
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Installation
8.4 Pneumatic connection
DANGER!
Risk of injury from high pressure in the system!
▶Beforelooseninglinesandvalves,turnothepressureand
vent the lines.
WARNING!
Risk of injury due to unsuitable connection hoses!
Hosesthatcannotwithstandthepressureandtemperature
rangecancausehazardoussituations.
▶Onlyusehosesthatarepermittedforthespeciedpressure
andtemperaturerange.
▶Notethedatasheetinformationfromthehose
manufacturers.
8.4.1 Pilot air ports
Orderno.
903383 or
771077
The45°elbowconnection,availableseparately,
isrecommendedasapilotairport!
Thefreelymovablehoselengthhereshouldbe
min. 250 mm.
Ashorterhoselengthreducesthedurabilityand
functionoftheplug-incoupling!
Whenusingastraightpilotairport,thefreely
movablehoselengthshouldbemin.400mm.
Ashorterhoselengthreducesthedurabilityand
functionoftheplug-incoupling!
Risk of crushing!
▶Becauseoftheriskofcrushing,a
90°pilotairportmustnotbeused!
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Start-up
9 START-UP
9.1 Safety instructions
WARNING!
Risk of injury due to improper operation!
Improperoperationmayresultininjuriesaswellasdamageto
thedeviceandtheareaaroundit.
▶Beforestart-up,ensurethattheoperatingpersonnelare
awareofandhavecompletelyunderstoodthecontentsof
theoperatinginstructions.
▶Thesafetyinstructionsandtheintendedusemustbe
observed.
▶Onlyadequatelytrainedpersonnelmaystartupthesystem/
device.
10 MAINTENANCE, CLEANING
10.1 Safety instructions
DANGER!
Risk of injury from high pressure in the system!
▶Beforelooseninglinesorvalves,switchothepressureand
bleedthelines.
WARNING!
Risk of injury due to improper maintenance work!
▶Maintenancemaybecarriedoutbyauthorisedtechnicians
onlyandwiththeappropriatetools!
Risk of injury due to unintentional activation of the system
and uncontrolled restart!
▶Secure the system against unintentional activation.
▶Ensureacontrolledrestartaftermaintenanceiscompleted.
▶Toscrewthevalvebodyoractuatorinandout,usean
open-endwrench–neverapipewrench–andobservethe
tighteningtorques.
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Maintenance, cleaning
10.2 Maintenance work
10.2.1 Actuator
Theangleseatvalveactuatorrequiresnomaintenance.
10.2.2 Angle seat valve
Wearingpartsthataresubjecttonaturalwearandtear:
•Swivelplate
•Graphiteseal
Ifthereisaleak,replacethewearingpartinquestionwithacor-
respondingsparepart(seeChapter“13Spareparts”).
10.3 Cleaning
Commerciallyavailablecleaningagentscanbeusedtocleanthe
devicesurface.
NOTE!
Avoid causing damage with cleaning agents.
▶Beforecleaning,checkthatthecleaningagentsarecompa-
tiblewithbodymaterialsandseals.
10.4 Recommended auxiliary materials
Intheseinstructions,thefollowingauxiliarymaterialsarerecom-
mendedfortheproperoperation,maintenanceandrepairofthe
device:
Type of auxi-
liary material
Product
name
Manufacturer and Internet
address
Lubricant
paste
Klüberpaste
UH196-402
KlüberLubricationMünchen
KG,
www.klueber.de
Adhesive Loctite640 MarketingLoctite,
HenkelAG&Co.KGaA,
www.loctite.de
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Maintenance
11 MAINTENANCE
CAUTION!
Risk of injury and/or damage to property due to incorrect
parts!
Incorrectaccessoriesandunsuitablesparepartsmaycause
injuriesanddamagetothedeviceandtheareaaroundit.
▶Useonlyoriginalaccessoriesandoriginalsparepartsfrom
Bürkert.
11.1 Replacing the valve seat
Thevalvesetincludes:
•The swivel plate:
Consistingof -Sealholder
- Valve seal
-Centringdevice
•The graphite seal
Thiscanalsobeorderedseparately.
Toreplacethevalveset,theactuatormustrstbe
removedfromthevalvebodyasdescribedbelow.
11.1.1 Removing the actuator from the valve
body
DANGER!
Risk of injury from escaping medium and pressure
discharge.
Removingthepressuriseddeviceisdangerousduetosudden
pressuredischargeandmediumleakage.
▶Beforelooseninglinesorvalves,switchothepressureand
bleedthelines.
WARNING!
Risk of injury due to damaged devices!
Usingthewrongtoolandtoomuchtighteningtorquecan
damagethedeviceduringinstallation.
▶Toremovetheactuatorfromthevalvebody,useanopen-
endwrench,neverapipewrench.
▶Observethetighteningtorque:40±3Nm
Control functionA:
→Applycompressedair(5.5bar)tothepilotairportsothatthe
swivelplateliftsothevalveseatandisnotdamaged.
Control functionB:
Nocompressedairneedstobeappliedforinstallationforcontrol
functionB.
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Maintenance
NOTE!
Damage to the seat seal or seat contour!
▶Whenremovingtheactuator,thevalvemustbeintheopen
position.
→Useanopen-endwrench(SW22forDN10;SW27forDN15)
toremovetheactuatorfromthevalvebodyintheopenvalve
position(see“Figure6”).
Visualpositionindicator
Yellow=valveopen
Actuator
Wrenchatforopen-endwrench
(hexagonhead)
Valvebody
Figure 6: Disassemble actuator
11.1.2 Replacing valve set
Swivelplate
Sealholder
Seat seal
Centringdevice
Graphiteseal
Spindle
Wrenchat
Figure 7: Valve set
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Maintenance
WARNING!
Risk of injury due to damaged devices!
Doingassemblyworkwiththewrongtoolscandamagethe
device.
▶Toremovetheactuatorfromthevalvebody,useanopen-
endwrench,neverapipewrench.
Ifthetighteningtorqueistoohighitcandamagethespindle
thread.
Procedure:
→Holdthespindleagainstthewrenchatwithaforkwrench
(SW7).
→Loosenthecentringdevicecarefullywithasuitableopen-end
wrench(SW5.5)inordertonotdamagethespindlethread.
→Unscrewcentringdevice.
→Removethesealholderwiththeseatseal.
→Placenewsealholderandnewseatsealonthespindle.
→Applyadhesive(Loctite640)tospindlethread.
→Screwonthecentringdeviceandtightenwithasuitable
open-endwrench(SW5.5).
Observethetighteningtorque(0.6Nm)!
11.1.3 Installing actuator on valve body
WARNING!
Risk of injury due to unintentional activation of the system
and uncontrolled restart!
▶Secure the system against unintentional activation.
▶Followinginstallation,ensureacontrolledrestart.
DANGER!
Risk of explosion due to incorrect lubricants!
Unsuitablelubricantmaycontaminatethemedium.Thereisa
riskofexplosioninoxygenapplications.
▶Forspecicapplications,e.g.oxygenoranalysisapplica-
tions,useapprovedlubricantsonly.
→Beforere-installation,greasethepipethreadoftheactuator
(e.g.usingKlüberpasteUH196-402fromKlüber).
→Checkgraphitesealandreplaceifrequired.
Graphiteseal
Figure 8: Graphite seal
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20
Faults
→For control functionA:Applycompressedairtothepilotairport
(5.5bar)sothattheswivelplateliftsupfromthevalveseatand
isnotdamagedduringthescrew-inprocess.
WARNING!
Risk of injury due to damaged devices!
Doingassemblyworkwiththewrongtoolscandamagethe
device.
▶Toremovetheactuatorfromthevalvebody,useanopen-
endwrench,neverapipewrench.
Ifthetighteningtorqueistoohighitcandamagethespindle
thread.
▶Observethetighteningtorque(40±3Nm)
→Screwtheactuatorintothevalvebody.
Observethetighteningtorque(40 ±3Nm)!
Ifthepositionofthepilotairportisunfavourablefor
mountingthehose,itcanbeseamlesslyalignedby
turningthedrive360°.
12 FAULTS
Fault Elimination
Actuatordoes
not switch.
Pilotpressuretoolow.
→Seepressurespecicationonthetype
label.
Operatingpressuretoohigh.
→Seepressurespecicationonthetype
label.
Flowdirectionswitched.
→Seelabellingonthetypelabel.
Valve leaks. Dirtbetweensealandvalveseat.
→Installdirttrap.
Valve seat seal worn.
→Installnewswivelplate.
Seatsealdamaged,e.g.byforeignbodies,
chipsorsimilar.
→Installnewswivelplate.
Flowdirectionswitched.
→Seelabellingonthetypelabel.
Pilotpressuretoolow.
→Seepressurespecicationonthetype
label.
Operatingpressuretoohigh.
→Seepressurespecicationonthetype
label.
Valve is leaking
attherelief
bore.
Spindlesealworn.
→Replacetheactuator.
Tab. 3: Faults
Type2060 INOX
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