Burkert 2006 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 2006
3/2 way globe valve
3/2-Wege-Geradsitzventil
Vanne à siège droit 3/2 voies

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2016 - 2019
Operating Instructions 1901/01_EU-ML_00810459 / Original DE

3
1 OPERATING INSTRUCTIONS............................................... 4
1.1 Symbols....................................................................... 4
1.2 Denitionoftheterm"Device".................................... 4
2 AUTHORIZED USE ............................................................... 5
3 BASIC SAFETY INSTRUCTIONS.......................................... 5
4 GENERAL INFORMATION .................................................... 7
4.1 Contactaddresses ...................................................... 7
4.2 Warranty ...................................................................... 7
4.3 InformationontheInternet.......................................... 7
5 PRODUCT DESCRIPTION .................................................... 7
5.1 Generaldescription ..................................................... 7
5.2 Properties .................................................................... 7
6 STRUCTURE AND FUNCTION ............................................. 8
6.1 Structure...................................................................... 8
6.2 Function....................................................................... 9
7 TECHNICAL DATA............................................................... 10
7.1 Conformity................................................................. 10
7.2 Standards .................................................................. 10
7.3 Typelabel .................................................................. 10
7.4 Operatingconditions ................................................. 11
7.5 Generaltechnicaldata............................................... 14
8 ASSEMBLY.......................................................................... 14
8.1 Safetyinstructions..................................................... 14
8.2 Beforeinstallation...................................................... 15
8.3 Installingthebody ..................................................... 15
8.4 Rotatingthedrive ...................................................... 15
8.5 Pneumaticconnection............................................... 16
9 START-UP............................................................................ 17
9.1 Controlpressure........................................................ 17
9.2 Incomingowaboveupperseat
(directionofow3 → 2)........................................................ 17
9.3 Flowdirectionbelowthelowerseat
(directionofow1 → 2)........................................................ 17
10 DISASSEMBLY.................................................................... 17
11 MAINTENANCE, TROUBLESHOOTING ............................. 18
11.1 Safetyinstructions..................................................... 18
11.2 Maintenancework ..................................................... 18
11.3 Malfunctions.............................................................. 19
12 SPARE PARTS..................................................................... 20
13 PACKAGING, TRANSPORT, STORAGE ............................. 22
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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theseinstructionsavailabletoeverynew
ownerofthedevice.
The operating instructions contain important safety
information.
Failuretoobservetheseinstructions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thewarningmayresultinafatalorserious
injury.
WARNING
Warns of a potentially dangerous situation.
▶Failuretoobservethewarningmayresultinseriousinjuries
ordeath.
CAUTION
Warns of a possible danger.
▶Failuretoobservethiswarningmayresultinamoderately
severe or minor injury.
NOTICE
Warns of damage to property.
▶Failuretoobservethewarningmayresultindamagetothe
deviceortheequipment.
Designatesadditionalsignicantinformation,tipsand
recommendations.
Referstoinformationintheseoperatinginstructionsorin
otherdocumentation.
▶designatesinstructionsforriskprevention.
→designatesaprocedurewhichyoumustcarryout.
1.2 Denition of the term "Device"
Intheseinstructions,theterm"device"alwaysreferstotheglobe
valvetype2006.
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Authorized Use
2 AUTHORIZED USE
Non-authorized use of the globe valve type 2006 may be a
hazard to people, nearby equipment and the environment.
▶Thedeviceisdesignedforthecontrolledowofliquidand
gaseous media.
▶Inareasatriskof explosion,only usedevicesapprovedfor
useinthoseareas.Thesedevicesarelabeledwithaseparate
Extypelabel.Whenutilizedinapotentiallyexplosiveatmo-
sphere,alwayspayattentiontothedetailsontheseparateEx
typelabelandtheExadditionalinstructionscontainedinthe
scopeofdelivery.
▶DeviceswithoutaseparateExtypelabelmaynotbeusedin
apotentiallyexplosivearea.
▶Theadmissibledata,theoperatingconditionsandconditions
ofusespeciedinthecontractdocuments,operatinginstruc-
tions and on the type label are to be observed during use.
Thedesignatedapplicationcasesarespeciedinthechapter
entitled “5ProductDescription”.
▶Protectdevicefromdamagingenvironmentalinuences
(e.g.radiation,humidity,steam,etc.).Ifanythingisunclear,
consulttherelevantsalesoce.
▶Thedevicemaybeusedonlyinconjunctionwiththird-party
devicesandcomponentsrecommendedandauthorizedby
Bürkert.
▶Correcttransportation,correctstorageandinstallationand
carefuluseandmaintenanceareessentialforreliableand
faultlessoperation.
▶Usethedeviceonlyasintended.
3 BASIC SAFETY INSTRUCTIONS
Thesesafetyinstructionsdonotmakeallowanceforany
•contingenciesandeventswhichmayariseduringtheinstallation,
operationandmaintenanceofthedevices.
•localsafetyregulations;theoperatorisresponsibleforobserving
theseregulations,alsowithreferencetotheinstallationpersonnel
(e.g.bymeansofawarninglabelonthedeviceregardingthe
useofhotmedia).
Risk of injury from high pressure and discharge of medium.
▶Beforeworkingonthedeviceorsystem,switchothepres-
sure. Vent or drain lines.
Risk of injury from electric shock (when electrical component
installed).
▶Beforereachingintothedeviceortheequipment,switcho
thepowersupplyandsecuretopreventreactivation!
▶Observeapplicableaccidentpreventionandsafetyregula-
tionsforelectricalequipment!
Risk of injury from moving parts in the device!
▶Donotreachintoopenings.
Risk of burns and risk of re due to hot device surface if duty
cycle is long or medium temperature is high
▶Keepthedeviceawayfromhighlyammablesubstancesand
mediaanddonottouchwithbarehands.
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Basic safety instructions
Danger due to loud noises.
▶Dependingontheoperatingconditions,thedevicemaygenerate
loudnoises.Moredetailedinformationonthelikelihoodofloud
noisesisavailablefromtherelevantsalesoce.
▶Wearhearingprotectionwheninthevicinityofthedevice.
Leaking medium when the packing gland is worn.
▶Regularlycheckreliefboreforleakingmedium.
▶Ifmediumisleakingoutofthereliefbore,changethepacking
gland.
▶If the media is hazardous, protect the area surrounding the
dischargepointagainstdangers.
General hazardous situations.
Topreventinjury,ensurethat:
▶Thatthesystemcannotbeactivatedunintentionally.
▶Installationandrepairworkmaybecarriedoutbyauthorized
techniciansonlyandwiththeappropriatetools.
▶Afteraninterruption,ensurethattheprocessisrestartedina
controlledmanner.Observesequence.
1.Applysupplyvoltage.
2.Chargethedevicewithmedium.
▶Thedevicemaybeoperatedonlywheninperfectcondition
andinconsiderationoftheoperatinginstructions.
▶Observethesafetyregulationsspecictotheplantforapplica-
tionplanningandoperationofthedevice.
▶Theplant operatorisresponsibleforthesafeoperationand
handlingoftheplant.
▶Thegeneralrulesoftechnologyapplytoapplicationplanning
andoperationofthedevice.
Topreventdamagetopropertyofthedevice,ensure:
▶Supplythemediaconnectionsonlywiththosemediawhich
arespeciedasowmediainthechapterentitled“7Techni-
calData”.
▶Donotputanyloadsonthevalve(e.g.byplacingobjectson
it or standing on it).
▶Donotmakeanyexternalmodicationstothevalves.Donot
paintthebodypartsorscrews.
▶Donottransport,installorremoveheavydeviceswithouttheaid
ofasecondpersonandusingsuitableauxiliaryequipment.
▶Theexhaustair maybecontaminatedwith lubricants inthe
actuator.
Theglobevalvetype2006wasdevelopedwithduecon-
siderationgiventoacceptedsafetyrulesandisstate-of-
the-art.However,dangerscanstillarise.
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General Information
4 GENERAL INFORMATION
4.1 Contact addresses
Germany
BürkertFluidControlSystems
Sales Center
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
Contactaddressesarefoundonthenalpagesoftheprinted
operatingmanual.
YoucanalsondinformationontheInternetunder:
www.burkert.com
4.2 Warranty
Thewarrantyis only valid if thedevice is usedas authorizedin
accordancewiththespeciedapplicationconditions.
4.3 Information on the Internet
TheoperatinginstructionsanddatasheetsforType2006canbe
foundontheInternetat:www.burkert.com
5 PRODUCT DESCRIPTION
5.1 General description
Theexternallycontrolledglobevalvetype2006issuitableforliquid
and gaseous media.
Itusesneutralgasesorair(controlmedia)tocontroltheow-rateof
water,alcohol,oil,fuel,hydraulicuid,salinesolution,lye,organic
solventandsteam(owmedia).
5.2 Properties
•Hightightnessbyself-adjustingpackingglands(spindle
sealing element).
•Highseattightness.
•Highowvaluesbythestreamlinedvalvebodymadeof
stainless steel.
•Actuatorcanberotatedsteplesslythrough360°.
5.2.1 Options
•Activationunit
Dierentversionsoftheactivationunitsareavailable
dependingontherequirement.
•Strokelimitation
Limitofthemaximumopenposition/owratebymeansof
adjustingscrew.
•Feedbackindicator
Thedevicefeaturesmechanicallimitswitchesorinductive
proximityswitches.
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Structure and Function
5.2.2 Device versions
Theglobevalveisavailablefortheactuatorsizesø50mmtoø
125 mm.
5.2.3 Restrictions
WARNING
Risk of injury from water hammer.
Awaterhammercouldcrackthelinesanddevice.
▶Usevalveswithowinletaboveseatforgaseousmediaand
steam only.
6 STRUCTURE AND FUNCTION
6.1 Structure
Theglobevalveconsistsofapneumaticallyactuatedpistonactuator
anda3-wayvalvebody.TheactuatorismanufacturedfromPAor
PPS.The triedandtested,self-adjustingpackingglandensures
hightightness.Theow-enhancingvalvebodymadeofstainless
steelenableshighowvalues.
Nipple
Lineconnector
Angle-seatbodywith
numbersforindi-
catingthedirection
ofow
Controlairconnection
Transparentcapwith
positionindicator
Actuatorcover
Actuatorbody
Fig. 1: Structure and description
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Structure and Function
6.2 Function
Dependingontheversion,thelowerseatofthevalveisclosedwith
oragainstthemediumow.
Springforce(CFA)orpneumaticcontrolpressure(CFBandCFI)
generates the closing force on the closing body. The force is
transferredviaaspindlewhichisconnectedtotheactuatorpiston.
WARNING
For control function I – Danger if control pressure fails.
ForcontrolfunctionIcontrolandresettingoccurpneumati-
cally.Ifthepressurefails,nodenedpositionisreached.
▶Toensureacontrolledrestart,rstpressurizethedevicewith
controlpressure,thenswitchonthemedium.
6.2.2 Control function and ow modes of
operation
Dierentoperatingprinciplescanbeobtainedwiththesame
control function by swapping the pressure and working
connections.
Control function A (CFA)
Inrestpositionlineconnector1closedbyspringforce.
3
1
2
Flow
modes of
operation
Connection
1 2 3
C P A R
D R A P
EP1 AP2
F A P B
A,B:   Workingconnections
P,P1,P2: Pressureconnections
R:   Pressurerelief
Tab. 1: Control function A (CFA)
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Technical Data
Flow modes of operation
C
Inrestpositionpressureconnection
1closed,workingconnection2
relieved.
D
Inrestpositionpressureconnection
3connectedtoworkingconnection
2,relief1closed.
E
Mixingvalve
Inrestpositionpressureconnection
3connectedtoworkingconnection
2,pressureconnection1closed.
F
Distribution valve
Inrestpositionpressureconnection
2connectedtoworkingconnection
3,workingconnection1closed.
Tab. 2: Flow modes of operation
7 TECHNICAL DATA
7.1 Conformity
ThedeviceconformstotheEUDirectivesaspertheEUDecla-
rationofConformity(ifapplicable).
7.2 Standards
Theappliedstandards,whichareusedtodemonstrateconformity
withtheEUDirectives,arelistedintheEUtypeexaminationcer-
ticateand/ortheEUDeclarationofConformity(ifapplicable).
7.3 Type label
Made in Germany
2006 A 50,0 PTFE VA
G1 1/2
Pilot 6–10bar
Pmed 1–2 : 9bar
Pmed 2–3/1: 16bar
00287199 W34ME
Type
Controlfunction
Orice Seal material
Body material
Portconnection
Pilotpressure
Max.medium
pressure
Order number
Fig. 2: Example of the type label
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Technical Data
7.4 Operating conditions
7.4.1 Temperature ranges
Actuator
size
[mm]
Actuator
material
Temperature ranges
Medium
(for PTFE seal)
Environment 1)
50,63 PA –10... see “Fig.3” –10... see “Fig.3”
80...125 PA –10...+180°C –10...+60°C
50...80 PPS –10...+180°C +5...+140°C
125 PPS –10...+180°C +5...+90°C
2)
Tab. 3: Temperature ranges
1) If a pilot valve is used, the max. ambient temperature
is + 55 °C
Medium
temperature[°C]
Ambient
temperature
[°C]
100 120 140 160 180 200
70
60
50
40
30
20
∅63
∅50
Fig. 3: Temperature range of the maximum medium and
ambient temperature for PA actuators
2) briey up to max. 140 °C
7.4.2 Pressure ranges
Maximum control pressure:
Actuator
material
Actuator size
[mm]
Max. control pressure
[bar]
PA 50...80 10
125 7
PPS 50...80 10
125 7
Tab. 4: Maximum control pressure
Maximum operating pressure, control function A:
Orifice [mm] Actuator size
[mm]
Max. medium pressure up to
180 °C [bar] direction of ow
1 → 2 2 → 3, 2 → 1
15,20 50 11 16
63 16 16
25 63 10 16
32,40 80 916
125 14 16
50 125 10 16
Tab. 5: Max. operating pressure
ForcontrolfunctionFthemaximumpermittedoperating
pressureis16bar.
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Technical Data
7.4.3 Minimum control pressures
Minimum control pressure pmin, control function A:
Orifice [mm] Actuator size
[mm]
Min. control pressure
pmin [bar]
15,20 50 4.4
15,20 63 4.7
25 63 4.9
32,40 80 6.0
32,40 125 3.4
50 125 4.3
Tab. 6: Minimum control pressure
Minimum control pressure pmin when
direction of ow 3 →2:
Therequiredminimumcontrolpressure
pmindependsonthemediumpressure. 3
1
2
Control
pressure[bar]
Medium
pressure
[bar]
CFA,ø50mm
DN 15
DN 25
DN 20
Fig. 4: Pressure graph, actuator ø 50 mm, control function A
Control
pressure[bar]
Medium
pressure
[bar]
CFA,ø63mm
DN 32 DN 40 DN 50 DN 25
DN 20
Fig. 5: Pressure graph, actuator ø 63 mm, control function A
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Technical Data
Control
pressure[bar]
Medium
pressure
[bar]
CFA,ø80mm
DN 32 DN 40 DN 50 DN 25
Fig. 6: Pressure graph, actuator ø 80 mm, control function A
Control
pressure[bar]
Medium
pressure
[bar]
CFA,ø100mm
DN 32 DN 40 DN 50
Fig. 7: Pressure graph, actuator ø 100 mm, control function A
Control
pressure[bar]
Medium
pressure
[bar]
CFA,ø125mm
DN 40 DN 50
Fig. 8: Pressure graph, actuator ø 125, control function A
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Assembly
7.5 General technical data
Control functions (CF)
ControlfunctionA Closedbyspringforceinrestposition
ControlfunctionB Openedbyspringforceinrestposition
ControlfunctionI Actuatingfunctionviareciprocal
pressurization
Materials
Body Stainless steel 316L
Actuator PA,PPS
Seal PTFE(othermaterialsonrequest)
Packinggland(with
siliconegrease)
PTFEVringswithspringcompensation
Media
Control media Neutralgases,air
Flow media Water,alcohols,oils,fuels,hydraulic
liquid,salinesolutions,lyes,organic
solvents,steam
Connections G 1/2 to G 2
Otherconnectionsonrequest.
Installation position Anyposition,preferablywithactuator
faceup
8 ASSEMBLY
8.1 Safety instructions
DANGER
Risk of injury from high pressure in the equipment.
▶Beforedismountingpneumaticlinesorvalves,turnothe
pressureandventthelines.
WARNING
Risk of injury from improper assembly.
▶Installationmaybecarriedoutbyauthorizedtechnicians
onlyandwiththeappropriatetools.
Risk of injury from unintentional activation of the system and
an uncontrolled restart.
▶Securesystemfromunintentionalactivation.
▶Followingassembly,ensureacontrolledrestart.
For control function I: Danger if control pressure fails.
ForcontrolfunctionIcontrolandresettingoccurpneumati-
cally.Ifthepressurefails,nodenedpositionisreached.
▶Toensureacontrolledrestart,rstpressurizethedevicewith
controlpressure,thenswitchonthemedium.
CAUTION!
Risk of injury due heavy devices!
▶Duringtransportorduringassembly,aheavydevicemayfall
andcauseinjury.
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Assembly
▶Donottransport,installorremoveheavydeviceswithoutthe
aidofasecondpersonandusingsuitableauxiliaryequipment.
▶Useappropriatetools.
8.2 Before installation
→Beforeconnectingthevalve,ensurethepipelinesareush.
→Observedirectionofow(seetypelabel).
→Cleanpipelines(sealingmaterial,swarf,etc).
Anyinstallationpositionispossible,preferablywithactuatorface
up.
Devices with approval in accordance with DIN EN 161
InaccordancewithDINEN161"Automaticshut-ovalvesforgas
burnersandgasinstallations"adirttrapmustbeconnectedupstream
ofthevalveandpreventtheinsertionofa1mmpluggauge.
8.3 Installing the body
→Connectbodytopipeline.
8.4 Rotating the drive
Thepositionoftheconnectionscanbealignedsteplesslyby
rotatingthedrivethrough360°.
NOTICE
Damage to the seal on the swivel plate.
▶Whenturningtheactuator,ensurethatthevalveisinthe
openposition.
→Clamp the valve body into a holding device (applies only to
valves not yet installed).
→ForcontrolfunctionApressurizethelowercontrolairconnection
withcompressedair(4bar):Valveopens.
→Usingasuitableopen-endwrench,counterthewrenchaton
thepipe.
→Placeasuitableopen-endwrenchonthehexagonoftheactuator
(see “Fig.9”).
WARNING
Risk of injury from discharge of medium and pressure.
Ifthedirectionofrotationiswrong,thebodyinterfacemay
becomedetached.
▶Turntheactuatorin the specied sense of direction only
(see “Fig.9”).
→By turningtheopen-endwrenchclockwise(viewedfromabove),
movetheactuatorintotherequiredposition.
Open-endwrenchfor
securingthenipple
Open-endwrench
forturningthe
actuator
Fig. 9: Turning with open-end wrench
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Assembly
8.5 Pneumatic connection
DANGER
Risk of injury from high pressure in the equipment.
▶Beforedismountingpneumaticlinesorvalves,turnothe
pressureandventthelines.
WARNING
Risk of injury from unsuitable connection hoses.
Hoseswhichcannotwithstandthepressureandtemperature
rangemayresultinhazardoussituations.
▶Useonlyhoseswhichareauthorizedfortheindicatedpres-
sureandtemperaturerange.
▶Observethedatasheetspecicationsfromthehose
manufacturers.
For control function I: Danger if control pressure fails.
ForcontrolfunctionIcontrolandresettingoccurpneumati-
cally.Ifthepressurefails,nodenedpositionisreached.
▶Toensureacontrolledrestart,rstpressurizethedevicewith
controlpressure,thenswitchonthemedium.
8.5.1 Connection of the control medium
Ifthepositionofthecontrolairconnectionsisunfa-
vorableforinstallationofthehoses,thesecanbestep-
lesslyalignedbyturningtheactuatorthrough360°.
Theprocedureisdescribedinchapter“8.4Rotatingthedrive”.
Control function A:
Onthelowerconnectionoftheactuator.
Control function B:
Ontheupperconnectionoftheactuator.
Control function I:
Ontheupperandlowerconnectionsoftheactuator.
Pressureonthelowerconnectionopensthevalve,
pressureontheupperconnectionclosesthevalve.
Control
function
Control air
connection
Top
Bottom
Control air
Connections
Top Bottom
A
B
I
closes opens
lower valve seat
Fig. 10: Control air connection
Ifusedinanaggressiveenvironment,werecommend
conveyingallfreepneumaticconnectionsintoaneutral
atmospherewiththeaidofapneumatichose.
Control air hose: Controlairhosesofsize1/4"canbeused.
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Assembly
9 START-UP
Observe the type label specications and information on
pressureandtemperaturevaluesinsection“7TechnicalData”.
9.1 Control pressure
WARNING
For control function I: Danger if control pressure fails.
Ifthepressurefails,nodenedpositionisreached.
▶Foracontrolledrestart,initiallypressurizetheequipmentwith
controlpressureandthenconnectthemedium.
→Setthecontrolpressureaccordingtothetypelabelspecications,
seesection“7.3”andowdirection(section“9.2” and “9.3”).
9.2 Incoming ow above upper seat
(direction of ow 3 → 2)
ControlfunctionA(CFA)closesbyspringforcethelowervalve
seatwiththemediumow.Themediumpressuresupportsthe
closureandsealofthevalveseat.Thevalveisopenedbythe
controlpressure.
WARNING
Risk of injury due to water hammer.
Aclosingshockcancauselinesandtheequipmenttoburst.
▶Onlyusevalveswiththeowdirectionabovetheseatfor
gaseous media.
Toensurecompleteopeningoftheuppervalveseat,the
minimumcontrolpressuremustbeused.
9.3 Flow direction below the lower
seat (direction of ow 1 → 2)
ControlfunctionA(CFA)closesbyspringforceagainstthemedium
ow.ControlfunctionB(CFB)closeswiththecontrolpressureagainst
the medium ow. The medium pressure supports the opening of
thevalve.
WARNING
Seat leaks caused by the minimum control pressure being too
low (on CFB and CFI) or the medium pressure being too high.
▶Observetheminimumcontrolpressureandmediumpressure
(see „5.5.1. Pressure ranges“).
10 DISASSEMBLY
DANGER
Risk of injury from discharge of medium and pressure.
Itisdangeroustoremoveadevicewhichisunderpressure
duetothesuddenreleaseofpressureordischargeofmedium.
▶Beforeremovingadevice,switchothepressureandvent
thelines.
→Loosenpneumaticconnection.
→Removedevice.
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Maintenance, Troubleshooting
11 MAINTENANCE,
TROUBLESHOOTING
11.1 Safety instructions
DANGER
Risk of injury from high pressure in the equipment.
▶Beforedismountingpneumaticlinesorvalves,turnothe
pressureandventthelines.
Risk of injury from electric shock (only in conjunction with
corresponding actuators).
▶Beforereachingintothedeviceortheequipment,switcho
thepowersupplyandsecuretopreventreactivation.
▶Observeapplicableaccidentpreventionandsafetyregula-
tionsforelectricalequipment.
WARNING
Risk of injury from improper maintenance.
▶Maintenancemaybecarriedoutbyauthorizedtechnicians
onlyandwiththeappropriatetools.
Risk of injury from unintentional activation of the system and
an uncontrolled restart.
▶Securesystemfromunintentionalactivation.
▶Followingmaintenance,ensureacontrolledrestart.
For control function I: Danger if control pressure fails.
ForcontrolfunctionIcontrolandresettingoccurpneumati-
cally.Ifthepressurefails,nodenedpositionisreached.
▶Toensureacontrolledrestart,rstpressurizethedevicewith
controlpressure,thenswitchonthemedium.
11.2 Maintenance work
Actuator:
Theactuatorismaintenance-freeprovidedifitisusedaccording
totheseoperatinginstructions.
Wearing parts of the angle seat valve / 3/2-way globe valve:
•Seals
•Closing body
→Ifleaksoccur,replacetheparticularwearingpartswithan
appropriatesparepart(seeChapter“12SpareParts”).
Theprocedureforreplacingthewearingpartsis
describedinthereplacementinstructionsofType2006.
Thereplacementinstructionscanbefoundonthe
Internetat:www.burkert.com
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Maintenance, Troubleshooting
11.2.1 Recommended maintenance intervals
Thevalveshouldbevisuallyinspectedonceayear.Shorter
maintenanceintervalsarerecommendeddependingonappli-
cationconditions.Thevisualinspectionincludesthepneumatic
connectionsandthemediumconnectionsaswellasthedeaer-
ationboreinthepipe.
11.2.2 Cleaning
Commerciallyavailablecleaningagentscanbeusedtocleanthe
outside.
NOTICE
Avoid causing damage with cleaning agents.
▶Beforecleaning,checkthatthecleaningagentsarecompat-
iblewiththebodymaterialsandseals.
11.3 Malfunctions
Malfunction Remedial action
Actuator
does not
switch
Controlairconnectioninterchanged3)
CFA:Connectlowercontrolairconnection
CFB:Connectuppercontrolairconnection
CFI:Lowercontrolairconnection:Open
Uppercontrolairconnection:Close
Controlpressuretoolow
→Seepressurespecicationsonthetype
label
Mediumpressuretoohigh
→Seepressurespecicationsonthetype
label
Directionofowinterchanged
→Seedirectionofowonthetypelabel
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Spare Parts
Malfunction Remedial action
Valve is not
sealed
Dirt between seal and valve seat
→Installingdirttrap
Seat seal worn
→Installing new seat seals
Directionofowinterchanged
→Seedirectionofowonthetypelabel
Mediumpressuretoohigh
→Seepressurespecicationsonthetype
label
Controlpressuretoolow
→Seepressurespecicationsonthetype
label
Valve is
leakingon
therelease
bore
Packingglandworn
→Renewpackingglandorreplaceactuator
Tab. 7: Malfunctions
3) see “8.5 Pneumatic connection”
12 SPARE PARTS
CAUTION
Risk of injury and/or damage by the use of incorrect parts.
Incorrectaccessoriesandunsuitablesparepartsmaycause
injuriesanddamagethedeviceandthesurroundingarea.
▶UseoriginalaccessoriesandoriginalsparepartsfromBürk-
ert only.
Werecommendhavingthesparepartsreplacedbyspe-
cialistpersonnelfromBürkert.
•Thefollowingpartsareavailableassparepartsforthestraight
valveType2006:
•Seal set for actuator (SET 5)
consistingofthesealingandwearingpartsoftheactuator.
•Valve set (SET 6)
consistingofthecompletespindlewithclosingbody.
Order numbers see page21.
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Type 2006