Burkert 8697 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8697
Pneumatic Control Unit
Pneumatische Ansteuerung
Unité de commande pneumatique

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modications techniques.
© Bürkert Werke GmbH & Co. KG, 2011 - 2018
Operating Instructions 1805/05_EU-ml_00810081 / Original DE

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1. OPERATING INSTRUCTIONS ............................... 4
1.1. Symbols ............................................................................ 4
1.2.Denitionofterm/abbreviation........................................ 4
2. AUTHORIZED USE.................................................................. 5
2.1. Designs with explosion protection.................................... 5
3. BASIC SAFETY INSTRUCTIONS ............................................ 6
4. GENERAL INFORMATION ...................................................... 7
4.1. Contact address................................................................ 7
4.2. Warranty............................................................................ 7
4.3.Informationontheinternet................................................ 7
5. DESCRIPTION OF SYSTEM.................................................... 7
5.1.Congurationandfunction................................................ 7
6. TECHNICAL DATA ................................................................... 9
6.1.Conformity ........................................................................ 9
6.2. Standards.......................................................................... 9
6.3. Licenses ............................................................................ 9
6.4. Operating conditions......................................................... 9
6.5. Mechanical data.............................................................. 10
6.6. Type label (example)........................................................ 10
6.7. UL additional label .......................................................... 10
6.8. Pneumatic data............................................................... 10
6.9. Electrical data ................................................................. 11
7. INSTALLATION ...................................................................... 12
7.1.Safetyinstructions .......................................................... 12
7.2.Installationonprocessvalvesofseries21xx.................. 12
7.3.Installationonprocessvalvesofseries20xx.................. 15
7.4. Rotating the actuator module ......................................... 18
7.5.RotatingthePneumaticControlUnitforprocessvalves
belonging to series 20xx........................................................ 19
7.6.Manualactuationoftheactuatorviapilotvalve ............. 20
8. FLUID INSTALLATION ........................................................... 21
8.1.Safetyinstructions .......................................................... 21
8.2.Installingtheprocessvalve............................................. 21
8.3.PneumaticconnectionofthePneumaticControlUnit.... 21
9. ELECTRICAL INSTALLATION................................................ 22
9.1.Safetyinstructions .......................................................... 22
9.2. Electrical installation
with cable gland..................................................................... 23
9.3. Electrical installation with
circular plug-in connector...................................................... 26
9.4. Display elements: End position LEDs ............................. 27
9.5.Adjustmentofthemicroswitchesortheproximity
switches (option).................................................................... 28
10. SAFETY POSITIONS .......................................................... 29
11. ACCESSORIES.................................................................... 29
12. DISASSEMBLY .................................................................... 30
12.1.Safetyinstructions......................................................... 30
12.2. Disassembly the Pneumatic Control Unit ..................... 30
13. PACKAGING, TRANSPORT, STORAGE.............................. 31
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Type 8697

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Operating instructions
CAUTION!
Warns of a possible danger.
▶Failuretoobservethiswarningmayresultinamoderateor
minor injury.
NOTE!
Warns of damage to property.
▶Failuretoobservethewarningmayresultindamagetothe
deviceortheequipment.
Indicatesimportantadditionalinformation,tipsand
recommendations.
referstoinformationintheseoperatinginstructionsorin
other documentation.
▶Indicatesaninstructiontopreventrisks.
→Designates a procedure which you must carry out.
1.2. Denition of term / abbreviation
Theterm“device”usedintheseinstructionsalwaysstandsfor
the Pneumatic Control Unit Type 8697.
Theabbreviation“Ex”usedintheseinstructionsalwaysstands
for“explosion-protected”.
1. OPERATING INSTRUCTIONS
The operating instructions describesthe entire life cycle of the
device.Keeptheseinstructionsinalocationwhichiseasilyacces-
sible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will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.
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Type 8697

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Authorized use
2. AUTHORIZED USE
Non-authorized use of the Pneumatic Control Unit Type
8697 may be a hazard to people, nearby equipment and the
environment.
• Thedeviceisdesignedtobemountedonpneumaticactua-
torsofprocessvalvesforthecontrolofmedia.
• Donotexposethedevicetodirectsunlight.
• Useaccordingtotheauthorizeddata,operatingconditions
andconditionsofusespeciedinthecontractdocuments
and operating instructions. These are described in the chap-
ter entitled “6.Technicaldata”.
• Thedevicemaybeusedonlyinconjunctionwiththird-party
devicesandcomponentsrecommendedandauthorizedby
Bürkert.
• Inviewofthelargenumberofoptionsforuse,beforeinstal-
lation,itisessentialtostudyandifnecessarytotestwhether
thePneumaticControlUnitissuitablefortheactualuse
planned.
• Correcttransportation,correctstorageandinstallationand
carefuluseandmaintenanceareessentialforreliableand
faultlessoperation.
• Use the Pneumatic Control Unit Type 8697 only as intended.
2.1. Designs with explosion protection
DANGER!
Explosion hazard.
Improperuseinapotentiallyexplosiveatmosphererepresents
anexplosionhazard.
▶ObservetheinformationintheECDeclarationofConformity
as well.
▶FordesignswithExapproval,theinformationintheEC-Type
ExaminationCerticateandtheadditionalinstructionsofType
8697mustalsobeobserved.
2.1.1. Ex approval
TheExapprovalisonlyvalidifthemodulesandcomponentsautho-
rizedbyBürkertareusedasdescribedintheadditionalinstructions
forType8697.
The Pneumatic Control Unit may be used only in combination with
theadditionalcomponentsreleasedbyBürkert,otherwisetheEx
approvalwillbevoided!
Ifanyunauthorizedchangesaremadetothedevice,modulesor
components,theExapprovalwillalsobevoided.
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Type 8697

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Basic safety instructions
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,wherebytheoperatorisresponsiblefor
theircompliance,bytheinstallationpersonneltoo.
DANGER!
Risk of injury from high pressure in the equipment/device.
▶Beforeworkingonequipmentordevice,switchothepressure
anddeaerate/drainlines.
Risk of electric shock.
▶Beforereachingintothedevice,switchothepowersupply
andsecuretopreventreactivation.
▶Observeapplicableaccidentpreventionandsafetyregulations
forelectricalequipmen.
General hazardous situations.
Topreventinjury,ensure:
▶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inthepowersupplyorpneumaticsupply,
ensurethattheprocessisrestartedinadenedorcontrolled
manner.
▶Thedevicemaybeoperatedonlywheninperfectcondition
andinconsiderationoftheoperatinginstructions.
▶Thegeneralrulesoftechnologyapplytoapplicationplanning
andoperationofthedevice.
Topreventdamagetopropertyofthedevice,ensure:
▶Donotfeedanyaggressiveorammablemediaintothepres-
sure supply connection.
▶Donotfeedanyliquidsintothepressuresupplyconnection.
▶Do not put any loads on the body (e.g. by placing objects on
it or standing on it).
▶Donotmakeanyexternalmodicationstothedevicebodies.
▶Thedevicemaybeoperatedonlywiththetransparenthood
closed.
The Pneumatic Control Unit Type 8697 was developed
withdueconsiderationgiventotheacceptedsafetyrules
andisstate-of-the-art.Nevertheless,dangeroussituations
may occur.
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Type 8697

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General information
4. GENERAL INFORMATION
4.1. Contact address
Germany BürkertFluidControlSystems
Sales Center
Christian-Bürkert-Str.13-17
D-74653Ingelngen
Tel. : 07940 - 10 91 111
Fax: 07940 - 10 91 448
E-mail:[email protected]
International
Contactaddressesarefoundonthenalpagesoftheprinted
operating manual and also on the Internet at: 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8697canbe
foundontheInternetat:www.burkert.com
5. DESCRIPTION OF SYSTEM
5.1. Conguration and function
The Pneumatic Control Unit Type 8697 can control single or double-
actingprocessvalves.ThePneumaticControlUnitType8697has
been optimized for integrated, modular installation on process
valvesofthe21xxseries(Elementactuatorsize∅ 50). The module
congurationpermitsavarietyofexpansionsteps.
For installation on the 20xx series there is a special model which
is described in Chapter “5.1.2”.
5.1.1. Pneumatic Control Unit for integrated
installation on 21xx series (Element
actuator size ∅50)
Cable gland M16 x 1.5 or Circular plug-in connector M12 x 1
Exhaust air connection
label: 3
Pressurelimitingvalve
(forprotectionagainsttoo
high internal pressure in case
oferror)
Pilot air port
label: 1
Transparent cap
Fig. 1: Conguration and function (1)
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Description of system
Optical position indicator:
The device status is displayed on the Pneumatic Control Unit
(yellowmark).
Option: Electrical position feedback
Optionallymechanicallimitswitches(microswitches)orinductive
proximityswitchescanmeasurethevalveposition.
View without transparent cap:
Fastening screws (2x)
Screw terminals
Assemblyshaftfor
precision adjustment
oftheswitchcams
(onlyformodelwith
inductiveproximity
switches)
Openingforoptical
position indicator
Fig. 2: Conguration and function (2)
5.1.2. Model for control of process valves
belonging to the 20xx series
A special model enables the Pneumatic Control Unit Type 8697 to
beattachedtoprocessvalvesbelongingtothe20xxseries.
Thismodelhasadierentpneumaticconnectionmodulesothat
thepilotairportscanbeconnectedtotheoutsideoftheactuator.
Pilot air outlet 21
Fastening screws
(2x)
Pilot air outlet 22
Fig. 3: Connection module for process valves, 20xx series
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Technical data
6. TECHNICAL DATA
6.1. Conformity
InaccordancewiththeEUDeclarationofconformity,thePneu-
maticControlUnitType8697iscompliantwiththeEUDirectives
(ifapplicable).
6.2. Standards
Theappliedstandards,whichverifyconformitywiththeEUDirec-
tives,canbefoundontheEU-TypeExaminationCerticateand/
ortheEUDeclarationofConformity(ifapplicable).
6.3. Licenses
Theproductisapprovedforuseinzone1,2,21and22inaccor-
dancewithATEXdirective2014/34/EUcategory2GDand3GD.
Observeinstructionsonoperationinanexplosion-risk
(Ex)area.ObservetheATEXadditionalinstructions.
TheproductiscULusapproved.InstructionsforuseintheUL
area see chapter “6.9.Electricaldata”.
6.4. Operating conditions
WARNING!
Solar radiation and temperature uctuations may cause
malfunctions or leaks.
▶Ifthedeviceisusedoutdoors,donotexposeitunprotected
to the weather conditions.
▶Ensure that the permitted ambient temperature does not exceed
themaximumvalueordropbelowtheminimumvalue.
Ambient temperature
 withoutpilotvalve(feedbackhead)  -20...+60°C
(-4...+140°F)
 withpilotvalve(controlhead)   -10...+55°C
(+14...+131°F)
 withATEXapproval      seeATEXadditional
instructions
Degreeofprotection
Evaluatedbythemanufacturer:   IP65/IP67according
toEN605291)
EvaluatedbyUL:       Cat.4xaccordingto
NEMA250standard
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Technical data
6.5. Mechanical data
Dimensions see data sheet
Bodymaterial     external PPS,PC
Sealing material external EPDM
internal FKM
Strokerangeofvalvespindle Microswitch 4...36mm
Proximityswitch 2...36mm
6.6. Type label (example)
D-74653 Ingelfingen
8697 -*-I2-E1-* PE51
single act pilot0.6 24V
Pmax 7bar
sw.ind.3wirePNP
Tamb0-+55°CREV.2
S/N1001
00248807
W15MA
Type;Featuresofthetype
code applicable to UL and ATEX
Controlfunction;pilotvalve;
supplyvoltagepilotvalve
Nominalpressure;limitswitch
Max. ambient temperature;
Releaseversion
Serialnumber;CEmark
Identicationnumber;
Dateofmanufacture
Bar code
Fig. 4: Example of type label
6.7. UL additional label
Limit switch: 10...30 V
Type 4X enclosure
Degreeofprotection
Supplyvoltage
limit switch
Fig. 5: Example of UL additional label (example)
6.8. Pneumatic data
Controlmedium neutralgases,air,Qualityclassesin
accordancewithDINISO8573-1
 Dustcontent Class7 max.particlesize40μm,
        max.particledensity10mg/m3
Watercontent Class3 max.pressuredewpoint-20°Cor
        min.10°Cbelowthelowest
operating temperature
Oilcontent ClassX max.25mg/m3
 Temperaturerange  0...+50°C(32...+122°F)
 Pressurerange   3...7bar(43,5...101,5psi)
Airoutputofpilotvalve  7IN/min(foraerationanddeaeration,
QNn-valueaccordingtodenition
forpressuredropfrom7to6bar
absolute)
Connections
21xx (Element) Plug-in hose connector
SocketconnectionG1/8
 20xx(Classic)    SocketconnectionG1/8Connection
M5forconnectingtheactuator
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Technical data
6.9. Electrical data
Connections   CableglandM16x1.5,wrenchsize19
(clampingarea4...8mm)
with screw terminals
forcablecross-sections0.14...1.5mm²
Circularplug-inconnectorM12x1,8-pole
Supplyvoltage
 Pilotvalve   24VDC±10%,residualripple10%
UL:NECClass2,24VDC,1W
Power consumption
ofpilotvalve  1W
Micro switch For maximum current load see table
  Variantforsafetyextra-lowvoltage(0...48VAC/DC)
24V 48V
resistiveloadandsemi-conductor
load
2AAC
2ADC
2AAC
2ADC
inductiveload(cosϕ=0,3) 2AAC
2ADC
1,5AAC
1ADC
  Variantforlowvoltage(50...250VAC/DC)1)
110/127V 220/240V
resistiveloadandsemi-conductor
load
2AAC
0,4ADC
2AAC
0,2ADC
inductiveload(cosϕ =0,3) 0,5AAC
0,2ADC
0,2AAC
0,1ADC
1) When used in the UL area, voltage and current are limited to 125 V AC
1 A. Also both micro switches must be fed from the same power supply.
Proximity switches
    3-wirePNP10...30VDCmax.100mAper
proximity switch
2-wire24VDCnormallyopen10...30VDC
 max.100mA,min.3mAperproximityswitch,
 Voltagedrop<5VResidualcurrent<0,6mA
2-wireNAMUR8,2VDC,1,2/2,1mA
 (actuated/notactuated)UL:NECClass2
 Positionfeedback(option)
    Protectionclass3acc.toDINEN61140(VDE
0140-1):
2microswitches0...48VAC/DC,
2initiators10...30VDC,normallyopencontactPNP
(3-wire),
2initiators10...30VDC,normallyopencontact
(2-wire),
2initiatorsNAMUR(8.2VDC)(2-wire)
    Protectionclass2acc.toDINEN61140(VDE
0140-1):2microswitches50...250VAC/DC
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Type 8697

12
Installation
7. INSTALLATION
Only for Pneumatic Control Unit without pre-assembled
processvalve.
7.1. Safety instructions
DANGER!
Risk of injury from high pressure in the equipment/device.
▶Beforeworkingonequipmentordevice,switchothepressure
anddeaerate/drainlines.
Risk of electric shock.
▶Beforereachingintothedevice,switchothepowersupply
andsecuretopreventreactivation.
▶Observeapplicableaccidentpreventionandsafetyregulations
forelectricalequipment.
WARNING!
Risk of injury from improper installation.
▶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installation,ensureacontrolledrestart.
7.2. Installation on process valves of
series 21xx
Procedure:
1. Install switch spindle
Transparent cap
Actuator
Pilot air ports
(plug-in hose con-
nectors with collets or
threaded bushings)
Fig. 6: Installation of the switch spindle (1), 21xx series
→Unscrew the transparent cap on the actuator and unscrew the
position display (yellow cap) on the spindle extension.
→For version with plug-in hose connector, remove the collets
(whitenozzles)frombothpilotairports(ifpresent).
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Type 8697

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Installation
O-ring
Spindle extension
Guideelement
Actuatorcover
Groovering
Switch spindle
Switch cam
3
max.5Nm
max.1Nm
Spacersleeve
Maximum
distance
Fig. 7: Installation of switch spindle (2), 21xx series
NOTE!
Improper installation may damage the groove ring in the
guide element.
Thegrooveringisalreadybepre-assembledintheguide
elementandmustbe“lockedintoposition”intheundercut.
▶Wheninstallingtheswitchspindle,donotdamagethegroove
ring.
→Push the switch spindle through the guide element.
NOTE!
Screw locking paint may contaminate the groove ring.
▶Donotapplyanyscrewlockingpainttotheswitchspindle.
→Tosecuretheswitchspindle,applysomescrewlockingpaint
(Loctite290)inthetappedboreofthespindleextensioninthe
actuator.
→CheckthattheO-ringiscorrectlypositioned.
→Screwtheguideelementtotheactuatorcover
(maximumtorque:5Nm).
→Screwswitchspindleontothespindleextension.Todothis,
thereisaslotontheupperside(maximumtorque:1Nm).
→Pushspacersleeve ontothe switchspindle up tothe guide
element.
Position switch cams on the switch spindle:
→Pushlowerswitchcamuptothespacersleeve.
→Pushupperswitchcamuntil3mmfromthestartoftheswitch
spindle.
Ensure that the distance between both switch cams is
maximum (see “Fig.7”).
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Type 8697

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Installation
2. Install sealing rings
Form seal
Pilot air ports
Caution:
Collets must not be
tted!
Installationof
theformseal
Fig. 8: Installing of the sealing rings, 21xx series
→Pulltheformsealontotheactuatorcover
(smaller diameter points upwards).
→CheckthattheO-ringsarecorrectlypositionedinthepilotair
ports.
WhenthePneumatic ControlUnitis beinginstalled,the
colletsofthepilotairportsmustnotbettedtotheactuator.
3. InstallationofthePneumaticControlUnit
Supports
Pilot air
ports
Fastening
screws
max.0,5Nm
Fig. 9: Installation of the Pneumatic Control Unit, 21xx series
→AlignthePneumaticControlUnituntilthesupportsofthePneu-
maticControlUnitcanbeinsertedintothepilotairportsofthe
actuator (see also “Fig.9”).
→PushthePneumaticControlUnit,withoutturningit,ontothe
actuatoruntilnogapisvisibleontheformseal.
NOTE!
Too high torque when screwing in the fastening screw does
not ensure degree of protection IP65 / IP67.
▶Thefasteningscrewsmaybetightenedtoamaximumtorque
of0.5Nmonly.
→Attach the Pneumatic Control Unit to the actuator using the
twosidefasteningscrews.Indoingso,tightenthescrewsonly
hand-tight(maximumtorque:0.5Nm).
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Type 8697

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Installation
7.3. Installation on process valves of
series 20xx
Procedure:
1. Install switch spindle
Transparent cap
Position indicator
Actuator
Fig. 10: Installation of the switch spindle (1), series 20xx
→Unscrew the transparent cap on the actuator.
→Usingahexagonsocketkey,unscrewtheorange/yellowposition
indicatorfromtheinsideoftheactuator.
→PresstheO-ringdownwardsintothecoveroftheactuator
(see “Fig.11”).
→Manually screw the switch spindle (and the plugged-on guide
element)togetherwiththeplasticpartontothespindleofthe
actuator,butdonottightenspindleyet.
Guideelement
O-ring
Plasticpartofthe
switch spindle
Switch cam
Switch spindle
Spindle (actuator)
Actuatorcover
Groovering
3
Spacersleeve
Maximum
distance
Fig. 11: Installation of the switch spindle (2), series 20xx
→Tighten the guide element with a wrench SW19 into the actuator
cover(torque:8.0Nm).
→Tighten the switch spindle on the spindle of the actuator.
Todothis,thereisaslotontheupperside(torque:1.0Nm).
→Pushspacersleeve ontothe switchspindle up tothe guide
element.
→Position switch cams on the switch spindle:
→Pushlowerswitchcamuptothespacersleeve.
→Pushupperswitchcamuntil3mmfromthestartoftheswitch
spindle.
Ensure that the distance between both switch cams is
maximum (see “Fig.11”).
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Type 8697

16
Installation
2. InstallationofthePneumaticControlUnit
Fastening
screws
max.0.5Nm
Fig. 12: Installation of the Pneumatic Control Unit, series 20xx
→Push the Pneumatic Control Unit onto the actuator.
→PressthePneumaticControlUnitallthewaydownasfarasthe
actuator and turn it into the required position.
EnsurethatthepneumaticconnectionsofthePneumatic
ControlUnitandthoseoftheactuatoraresituatedpref-
erablyverticallyoneabovetheother(see“Fig.12”).
If they are positioned dierently, longer hoses may be
requiredotherthanthosesuppliedintheaccessorykit.
NOTE!
Too high torque when screwing in the fastening screw does
not ensure degree of protection IP65 / IP67.
▶Thefasteningscrewsmaybetightenedtoamaximumtorque
of0.5Nmonly.
→Attach the Pneumatic Control Unit to the actuator using the two
sidefasteningscrews.Indoingso,tightenthefasteningscrews
hand-tightonly(maximumtorque:0.5Nm).
3. Installationofthepneumaticconnectionontheactuator
Pilot air outlet 21
Lower pilot air port
Upper pilot air port
Pilot air outlet 22
Fig. 13: Installation of the pneumatic connection, 20xx series
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Type 8697

17
Installation
→Screw the plug-in hose connectors onto the Pneumatic Control
Unit and the actuator.
→Usingthehosessuppliedintheaccessorykit,makethecon-
nection between the Pneumatic Control Unit and the actuator
withthefollowing“Tab.1:Pneumaticconnectiontoactuator”.
NOTE!
Damage or malfunction due to ingress of dirt and moisture.
▶TocomplywithdegreeofprotectionIP65/IP67,connectthe
pilotairoutletwhichisnotrequiredtothefreepilotairportof
the actuator or seal with a plug.
“Inrestposition”meansthatthepilotvalvesofthePneu-
matic Control Unit Type 8697 are isolated or not actuated.
If the ambient air is humid, a hose can be connected
between pilot air outlet 22ofthePneumaticControlUnit
andtheunconnectedpilotairportoftheactuatorforcontrol
function A or control function B. As a result, the spring
chamberoftheactuatorissuppliedwithdryairfromthe
ventductofthePneumaticControlUnit.
Control function Pneumatic connection Type 8697
with actuator
Pilot air outlet
Type 8697
Pilot air port
actuator
A
Processvalve
closed in rest
position
(byspringforce)
21
lower pilot air port
oftheactuator
22
should be con-
nected to the
upper pilot
airportofthe
actuator
B
Processvalveopen
in rest position
(byspringforce)
21
upper pilot
airportofthe
actuator
22
should be con-
nected to the
lower pilot air port
oftheactuator
Tab. 1: Pneumatic connection to actuator
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Type 8697

18
Installation
7.4. Rotating the actuator module
The actuator module (Pneumatic Control Unit and actuator)
can be rotated for straight seat valves and angle seat
valvesonly.
The position of the connections can be aligned steplessly by
rotating the actuator module (Pneumatic Control Unit and actuator)
through360°.
Only the entire actuator module can be rotated. The Pneu-
matic Control Unit cannot be rotated contrary to the actuator.
The process valve must be in the open position for
alignmentoftheactuatormodule.
Actuator
module
Hexagon Hexagon
Nipple
Series 20xx
Series 21xx
Nipple
Fig. 14: Rotating the actuator module
DANGER!
Risk of injury from high pressure in the equipment/device.
▶Beforeworkingonequipmentordevice,switchothepressure
anddeaerate/drainlines.
Procedure:
→Clampvalvebodyinaholdingdevice(onlyrequirediftheprocess
valvehasnotyetbeeninstalled).
→ControlfunctionA:Openprocessvalve.
→Usingasuitableopen-endwrench,counterthewrenchaton
the pipe.
→Placesuitableopen-endwrenchonthehexagonofthe
actuator.
WARNING!
Risk of injury from discharge of medium and pressure.
Ifthedirectionofrotationiswrong,thebodyinterfacemay
become detached.
▶Rotate the actuator module inthespecieddirectiononly (see
“Fig.15”).
→Rotate counter-clockwise (as seen from below) to bring the
actuator module into the required position.
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Type 8697

19
Installation
Open-end wrench
Fig. 15: Rotating with open-end wrench
7.5. Rotating the Pneumatic Control
Unit for process valves belonging
to series 20xx
Iftheconnectingcablesorhosescannotbettedproperlyfollowing
installationoftheprocessvalve,thePneumaticControlUnitcan
be rotated contrary to the actuator.
Procedure
→Loosen the pneumatic connection between the Pneumatic
Control Unit and the actuator.
→Loosenthefasteningscrews(hexagonsocketwrenchsize
2.5).
→Rotate the Pneumatic Control Unit into the required position.
Pneumatic
connection
Fastening
screw (2x)
Actuator
Pneumatic
Control Unit
Fig. 16: Rotating the Pneumatic Control Unit, series 20xx
NOTE!
Too high torque when screwing in the fastening screw does
not ensure degree of protection IP65 / IP67.
▶Thefasteningscrewmaybetightenedtoamaximumtorque
of0.5Nmonly.
→Tightenthefasteningscrewshand-tightonly
(maximumtorque:0.5Nm).
→Re-attach the pneumatic connections between the Pneumatic
ControlUnitandtheactuator.Ifrequired,uselongerhoses.
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Type 8697

20
Installation
7.6. Manual actuation of the actuator
via pilot valve
Theactuatorcanbemovedwithoutapowersupplyfromtherest
positiontoitsendpositionandbackagain,whenthecontrolairis
connected.
Todothis,thepilotvalvemustbeactuatedwithascrewdriver.
NOTE!
The hand lever may be damaged if it is simultaneously
pressed and turned.
▶Donotpressthehandleverwhenturningit.
Pilot valve non
activated
(normal position)
Handlever
Handlever
totheleft
Pilot valve
activated
Handlever
to the right
Fig. 17: Pilot valve for aerate and deaerate the actuator
Move actuator to end position
→Turnthehandlevertotherightusingascrewdriver.
Note: Donotpressthehandleverwhenturningit
Move actuator back to the rest position
→Turnthehandlevertotheleftusingascrewdriver.
Note: Donotpressthehandleverwhenturningit
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Type 8697