Zenit DGN 250-300/2/G65V Operating instructions

water solutions
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N - F
Manuale d’uso e manutenzione
User and maintenance manual
Manuel d’utilisation et de maintenance
Benutzer und Wartungshandbuch
Handleiding voor gebruik en onderhoud
Manual de uso y mantenimiento
Manual de uso e manutenção
Εγχειρίδιο χρήσης και συντήρησης
Brugs og vedligeholdelsesmanual
Käyttö ja huolto-opas
Bruks-och underhållsanvisning
Наръчник за употреба и поддръжка
Használati és karbantratási útmutató
Podręcznik instrukcji obłsugi oraz konserwacji
Manual de utilizare şi întreţinere
Kasutus ja hooldusjuhend
Lietošanas un tehniskās apkopes rokasgrāmata
Instrukties voor het gebruik en onderhoud
Návod k použití a údržbě
Užívateľský manuál
Pavodila za uporabo in vzdrževanje
Upute za rukovanje i održavanje
Руководство по эксплуатации
用户使用手册

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Ex db k IIB T5
II 2GD
Ex tb IIIC T100°C IP68
2460
EPT 11 ATEX 0464 X
Ex db k IIB T4
II 2GD Ex tb IIIC T135°C IP68
2460
EPT 11 ATEX 0464 X
Zenit Italia s.r.l.
via dell’Industria, 11
I-41018 S.Cesario s.P. (MO)
zenit.com
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User and maintenance manual – Translation of original instructions
Read this manual carefully and keep it in a safe, easily accessible and clean place for possible future reference.
MANUFACTURER INFORMATION
ZENIT Italia s.r.l. - via dell’Industria, 11 - 41018 S.Cesario sul Panaro (MO) - Italia
PRODUCT IDENTIFICATION
Withthismanual,astickylabelcontainingtheproductfeaturesfoundonthemetallicplateaffixedtotheelectricpumphasbeenprovided.
Werecommendthatyouputthislabelinthespecificplaceprovidedwithinthemanualandthenrefertothedatacontainedonthelabelforany
requirements or information.
Type
Version
Model Year
Serial number
PoweratMotorShaft(P2)
Phase Number
FrequencyofTensioninPowerSupply
Motor Insulation Class
Tension and Current (Single-phase/three-phaseDelta(Δ)connection)
Tension and Current (three-phrase Y connection)
ElementofPower
Capacitance of capacitor
Number or rotations per minute
Operation (continuous/discontinuous)
MaximumImmersionDepth
Min/MaxHydraulicHead(H)
Min/MaxCapacity(Q)
Model -EX (*)
Maximum Ambient Temperature
Weight
 ThesymbolreportedcomplieswithAnnexIIoftheRegulation(EC)N.765/2008oftheEuropeanParliamentandoftheCouncilof
9July2008.
2460 Registerednumberofthenotiedbodyinvolvedintheproductioncontrolphase
 ThespecicmarkingofexplosionprotectiongivenintheAnnexIIoftheDirective2014/34/EU
II Groupoftheequipment.GroupII:electricalequipmentforuseinplaceswithanexplosivegasatmosphereotherthanmines
2GD Categoryoftheequipmentsubjectofcertication,inpresenceofpotentiallyexplosiveatmospheresofGas,Vapors,Mist(G)and
Dust(D).TheequipmentcanbeinstalledinZONE1andinZONE21
Ex db k IIB Thetypeofelectricalprotectionfortheequipmentisaameproofenclosure,suitableforGasGroupIIBandIIA.Thetypeofme-
chanical protection for the equipment is through liquid immersion “k”
T4 TemperatureClassoftheequipment(maximumsurfacetemperature135°C)
T5 TemperatureClassoftheequipment(maximumsurfacetemperature100°C)
Ex tb IIIC ThetypeofelectricalprotectionfortheequipmentisaDusttightenclosure,suitableforDustGroupIIIC.
T135°C Themaximumsurfacetemperatureis135°C
T100°C Themaximumsurfacetemperatureis100°C
IP 68 Degreeofprotection.
EUM1 11 ATEX 0464 X
EUtypeexaminationcerticatenumberissuedbythenotiedbodyinvolvedintheverifyofAnnexIIIofDirective2014/34/EU.
(*) ATEX BRAND MEANING (potentially explosive atmospheres)
F series models N series models

EN
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water solutions
User and maintenance manual – Translation of original instructions
All of the instructions in the manual only apply to electric submer-
sible pump which are used in areas with a potentially explosive
atmosphere
WARNING: Failure to follow the safety instructions could
cause explosions!
ATEX electric pumps, identifiable by the -EX acronym, are certified
according to the antideflagrant protection mode recorded on the plate
fortheoperationwithinshafts,tanksand,intheversionincludingco-
olingjacket,indryingchamberswhereexplosivegas/dustispresent
orinanyareaclassifiedasZone1or21; it is the duty of the user to
assure that the dust on the surface of the pump does not exceed
a thickness of 50mm.
WARNING: in order to guarantee the stated ATEX conformity, the
liquid level must never be lower the pump body during regular
operation. To the purpose, a level control system is provided
through the use of float switches, level probes or, alternatively,
or guarded operation (human presence).
WARNING:anyinterventionwhichmodifiesthepumpcom-
ponentscancreateaDANGERofEXPLOSION.
ThepumpsMUSTbeusedONLYinareascompatiblewith
the characteristics recorded on the label.
WARNING: during handling, installation or disinstallation
operationsthepumpmustbedisconnectedfromthepower
supplypanel.
1. TECHNICAL CHARATERISTICS
• TensionofPowerSupply:Single-phaseorthree-phasepowersup-
plyinaccordancewiththemetalplaque;
Maximumvoltagevariationallowedforratedvalue:
• ±10%forelectropumpswithpowercablelengthupto30m;
• ±5%forelectropumpswithpowercablelengthgreaterthan30m
but not exceeding 200m.
WARNING: the -EX pump is not intended for use with a fre-
quency changer
• ImmersionDepth:Max.30metresunderliquidlevel;
• Surroundingtemperature:-2-20°C≤Ta≤+40°C;
• Maximum permissible number of start-ups per minute: see the tech-
nical specifications
• ProtectionCategoryIP68;
• Service Factor:
- Forelectricpumpswithoutacoolingjacket:S1iffullyimmersed,
S3withpercentageindicatedonthemetallicplaqueandstickylabel,
forapartiallyimmersedpump;
- Forelectric pumpswith a cooling jacket: S1for usein adrying
chamberorforapartiallyimmersedpump.
• Usage:drainage,evacuationand/orremovalofwastefromsewers
andseptictanksinareaswiththePRESENCEOFGASANDEX-
PLOSIVEDUST(-EX);removalofliquidscontainingsolidandfila-
mentousparticles;drainagewater,purificationwaterandwashing
waterfromcivilandindustrialprocessesinatmospherescontaining
groupIIAand/orBgas(usuallyhydrocarbongas)and/oratmosphe-
res containing a mix of combustible dusts.
2. HANDLING AND SHIPPING
NEVER use the power cable or the float switch cable
to lift or move the pump. Always use the appropriate
handle or lifting hook.
Formodelsweighing25kgorlessliftingandmovingmaybeperformed
manuallyusingthehandlefittedontheupperpartofthepump.
Formodelsweighingmorethan25kgandinallcaseswhereitisnot
possible to maintain a correct and natural posture, lifting and moving
must be carried out using a rope or chain attached to lifting hook or
handle fitted on the upper part of the pump, and an appropriate me-
chanical device.
Check that there is no visible damage to the packaging and its contents
Ifthereisanysignofsignificantdamage,contactZenitimmediately.
Check that the characteristics recorded on the metal plaque corre-
spond to the product purchased.
Within a hazardous area, handle any moving with caution, avoi-
ding bumps or friction of the pump with other metallic objects as
this could cause sparks, therefore increasing the risk of explo-
sions.
3. STORAGE
Duringstorage,theelectricpumpmustbekeptinasuitableplace,out
ofthereachofchildrenorthosewithdiminishedresponsibility,suitably
secured against falling and protected from damp, dust, vibrations and
extremetemperatures(below-5°Candabove+40°C).
WARNING:  Turn the impeller by hand occasionally (at least every
month) through the outlet or intake, to prevent the mechanical seals
from sticking together.
Following storage, inspect the electric pump to make sure there is
no damage, check the oil level in the mechanical seals chamber and
makesuretheimpellerspinsfreely
If the electric pump needs to be stored for more than six months, prior
to commissioning it, change the oil in the mechanical seals chamber
andtakeittoanauthoriseddisposalcentre.Donotdisposeoftheoil
ashouseholdwaste.
4. INSTALLATION
Before proceeding with the installation, carefully read the following
precautions:
• Whileinstalling/uninstalling,theelectricpumpmustbemovedusing
a rope or chain anchored to the handle.
• Withinahazardousarea,performinstallationwithcaution,avoiding
bumps or friction of the pump with other metallic objects as this
could cause sparks, therefore increasing the risk of explosions.
• Theshaftinwhichthepumpisinstalledmustbeofsuchdimensions
thatthefloatswitch,ifpresent,maymovefreely.
• In the presence of level control devices in the processed liquid,
makesurethatthemaximumnumberofstart-upsallowedperhour
is respected.
• WARNING: the shock from built up electrostatic charges on isolated
components could cause an explosion. -EX pumps do not have iso-
latedcomponentsthatareelectrostaticallychargeableandtheyare
allequippedwithscrewforconnectiontotheequipotentialground
network.Anyadditionalcomponentsinstalledinthehazardousarea
must be connected to the earthing network according to the EN
1127-1 rule, part 6.4.7.
• WARNING: checkthesuitabilityforuseinpotentiallyexplosiveat-
mospheres of each additional component installed in the hazardous
area.
• Wheninstalling withcoupling devices,pay utmostattention when
liftingorloweringthepumpintheshaftastherubbingtogetherof
metallic parts can cause sparks.
• Toavoidcavitationproblemscausedbyairaspiration,makesure
that the fluid entrance in the tank is not near the pump or pointed
towardsitandthatthedifferencebetweentheentrancelevelofthe
fluidsandtheminimumfluidallowedinsidethetankisnotexceeded.
• Theminimumleveloffluidwithinthetankmustneverfallbelowthe
top cover of the pump in order to ensure adequate cooling of the
motor.
• Incaseofinstallationofmodelswithcoolingjacketorforwhichitis
allowedtoberundry,theminimumleveloffluidcanfallbelowthe
topcoverofthepumpbutmustalwaysbeabovethepumpbodyin
ordertoavoidtheformationofvorticeswithaconsequententryof
air.
• Check that minimum level of fluid is correct also in relation to the
workingpointinordertoobtainasmoothoperationofthepump.
• Make sure that the pump does not operate outside its characteristic
curve.
4.1 Free-standing installation (fig. 1 page 126) and
fixed installation (fig. 2 page 126)
Place into the bottom on the tank.
If the model does not have integrated support feet, the specific base
mustbeusedtoguaranteeperfectstabilityforthepumpandthecor-
rect height of the aspiration tube.
4.1.1 Free-standing installation (fig. 1 page 126): Useahoseunion
toconnectthepump’sdeliverypipetoaflexiblehosepipewhichhas
aninternaldiameternotlessthanthatofthedeliverypipe.Ahosewith
spiralreinforcement ora semi-rigidtype is recommended to ensure
thatthefreepassageremainsconstanteveninbendsorpointswhere
it changes direction
4.1.2 Fixed installation (fig. 2 page 126): Connect the pump to

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User and maintenance manual – Translation of original instructions
rigid or metallic tubing. It is also possible to connect the pump to a
polyethylenepipeusinganappropriatefitting.
Itisadvisabletoinstallagatevalveandaflowballcheckvalvetoallow
freepassage.Thisshouldbedoneusingaconnectionpipewithlength
L>5Di(Di=internaldiameterofconnectionpipe) (fig. 3 page 126).
4.2 Installation with a coupling device
Thistypeofinstallationallowseasyremovalofthepumpfromthetank
andquickrepositioningwithoutrequiringinterferanceonthesystem.
4.2.1 Installation with external coupling device (fig. 4 page 126)
Modelswithaverticaldeliverycanbeinstalledwithanexternalcou-
pling device composed of a fixed part and a mobile part.
ThefixedpartisconnectedtothetubingofthesystemusingaDN50
flange or a 2” GAS thread.
Themobilepartisattachedtothepump’sdeliverypipeusinganappro-
priatelysizedpieceofpipe.
Thisdeviceallowstheeasyseparationofthepumpfromthesystem
and, without any intervention in the bottom of the tank, it can be
mountedevenwithoutbeingemptied.
4.2.2 Installation with a bottom coupling device (fig. 5A - 5B page 126)
Thistypeofinstallation,whichisdesignedforpumpswithhorizontal
outlets,allowsthepumptoberemovedfromthetankandrepositioned
inaquickwaywithoutaffectingthesystem.
Formodelswithaverticaloutletwith1½”-2”GASthread,itisnecessa-
rytouseaspecialadaptorkit.
Proceedinthefollowingmanner:
• Attachtheslidingflangetothedeliverypipeonthepumpusingthe
screwsprovidedwiththecouplingdevice;
• Steadilyattachthecouplingdevicetothebottomofthetank;
• Itisrecommendedtoinstallagatevalveandaflowballcheckvalve
toallowfreepassage.Thisshouldbedoneusingaconnectionpipe
withlengthL>5Di(Di=internaldiametreofconnectionpipe)(fig.
6 page 127).
• Affixthecouplingdevicesecurelytobottomofthetank;
• Join the guide tubes to the coupling device and secure them at the
topwiththespacerbracket(suppliedbythemanufacturer)whichwill
ensuretheircorrectparallelalignmentandguaranteethenecessary
rigidityofthesystem;
• Thepumpcanthenbeloweredusingaropeorchainattachedtothe
handle on the upper part of the motor cover. The guide tubes should
beusedtoaidthecouplingoftheflangewiththeoutlettubeofthe
pump until it is affixed to the coupling device.
4.3 Dry or semi-immersed installation (fig. 7 page 127)
Dry or semi-immersed installation is permitted, for pumps without a
coolingjacket,onlywithintermittentperiodicduty(S3mode)according
to the percentage indicated on the metal plaque.
Pumpswith a suction flange canbe coupled tothe systemusing a
curved base plate.
4.3.1 Dry installation with a cooling jacket (fig. 8 page 127)
(only models DGN-DRN-MAN-GRN-APN)
Acoolingjacketallowscontinuousduty(S1)ofthesubmergibleelec-
tricpumpevenwithpartialimmersionorinstalledinadryingchamber.
Thistypeofapplicationcanusethefluidinthetankasacoolingliquid
ifitiscleanenoughandfreefromsolidbodies,orelsewaterfroman
external circuit.
Inbothinstances,thepumpcomessuppliedwithapredisposedsuc-
tion flange for attachment to a curved base plate.
4.3.1.1 Closed jacket cooling system (CC) (fig. 8A page 127)
Owingtotheparticularshapeoftherearpartoftheimpeller,theliquid
inwhichthepumpisimmersedispumpedintothegapbetweenthe
bodyandthejacket,assuringthecoolingofthemotor.Oncethegap
isfilled,theliquidissuckedintothepumpbodythroughapipeandis
then expelled.
WARNING: This system can only be used with clean liquids free
from solid or filamentous particles.
4.3.1.2 Open jacket system cooling (CCE) (fig. 8B page 127)
Thecoolingliquidwhichispumpedintothegapbetweenthebodyand
thejacketcomesfromanexternalpressureunit.
Withthepump,twoattachmentsper“Rilsan”pipeareprovided.Con-
nectthewaterinlet pipe to wherethe“ENTRATA-IN”(fig. 9 page
127)signisattached.Connectthedrainpipetowherethe“USCITA
-OUT”(fig. 9 page 127) sign is attached.
Thetemperatureofthecoolingliquidmustnotexceed40°Cgoinginto
thejacket.
The capacity of the system must be 2-3 l/min and the maximum
pressure must not exceed 0.2 bar.
The cooling circuit must be activated at least 10 seconds before the
pumpisturnedonandnotdeactivatedbeforethecompleteshutdown
of the pump.
5. SUCTION PIPE
Thesuctionpipeofthepumpcanhaveagrillwhichpreventsforeign
bodies larger than the size of the free passage of the pump from en-
tering.
Itisnotrecommendedtoremovethesuctiongrillexceptincaseswhe-
reitisexpresslypermitted.
Periodicallycheckthatthesuctionpipeorthegrillremainfree,withthe
aim of preventing the clogging or blockage of the impeller.
GRmodelshavearotatingknifewiththreebladesthatcutfinesolids
and filaments and prevents the blockage of the impeller.
Periodicallycheckthattheknifeandtheplateoftheshreddingsystem
are free from residues.
Duringcleaningoperationsandmaintenance,alwaysunplugthepump
from power supply. Work with recommended personal protective
equipmentandpaytheutmostattention.
6. ELECTRIC CONNECTIONS (fig. 14 - 15 page 129-130)
All operations connecting the motor pump to the electricity supply
mustbeperformedbytechniciansqualifiedtooperate in areaswith
apotentiallyexplosiveatmosphereandinfullcompliancewithcurrent
regulations.
WARNING: To protect the power supply cable, avoid
twisting, pulling and/or accidental crushing.
Theendsofthepowersupplycablemustbeconnectedtoan
electricpanelcertifiedforuseinpotentiallyexplosiveatmospheresifit
is installed in a hazardous area or to a normal electric panel suitable
fortheatmosphere inwhich it isinstalled if theconnection isfound
tobeinasafearea,alwaysinaccordancewiththeinstallationrules.
In single-phase explosion-proof pumps with a reverse capacitor
and any external capacitor circuit breakers, the capacitors are
included in the supply but they are not connected to the pump
cable as they need to be connected internally to the electric panel
certified for use in potentially explosive atmospheres, if being in-
stalled in a hazardous area.
Beforewiringcheckthat:
• thetensionandfrequencyofthepowerlineareequaltothatindica-
ted on the metal plaque on the pump;
• theabsorbencyindicatedonthemetalplaqueislessthanthemaxi-
mumcurrentsuppliedtothesystem;
• thepowerlineisearthedandhasamagnetothermicdifferentialin
respect to the regulations in force
• theelectriccablesarenotinanywaydamaged.
Alwaysconnectthepumptotheequipotentialearthusingthescrew
onthemotorbody.
The electrical connection phase on models without a plug must be
carriedoutbyfirstconnectingtheyellow-greenearthcableandthen
the other connections.
To protect the pump motor use an adequate overload cutout suited to
theelectricalcharacteristicsshownonthemetalidentificationplaque.
Usinganammeter,checkthattheabsorbencyoftheinstalledpumpis
withinthelimitsindicatedonthemetalpump.
The operation and electrical safety of the ZENIT electric pump are
guaranteedbytheconfigurationprovidedfromthefactory.
WARNING: Anymodifications(e.g.addingapieceofcabletotheori-
ginal) can be considered a deviation of the pump characteristics and
can cause explosions.
6.1 Thermal protection
Allofthe-EXversionsareequippedwithaprotectionsystemagainst
overheating of the engine through means of a bimetal thermal protec-
torwhichdetectsthetemperatureofthepumpwrappingofthestator.
Theendsaremarkedwithastickeruponwhichiswritten“THERMAL
PROTECTION”.
The electric panel must be predisposed to guarantee the shutdown
ofthemotorwhenthethermalprotectionintervenesandtoavoidthe
automaticstart-upofthepumpwhichmustonlybestartedmanually

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User and maintenance manual – Translation of original instructions
withtheinterventionofanoperator.
The missing connection of the thermal protection, in addition to rende-
ring the guarantee ineffective, it can also cause danger.
6.2 Leakage Detector
Theelectric pump canbe equipped with a single-electrode leakage
detectorasanaccessorytodetectandsignaltheinfiltrationofwater
into the oil chamber of the mechanical seals (the equipment grounding
conductor is used as the return path for the conductive level limit de-
tection).
ThesignalcableismarkedwithalabelwiththeletterS.
WARNING: The connection to the electric control panel must be
carried out by inserting in safe area an Intrinsic Safety barrier
with galvanic isolation.
In the case of detection, take out of service the pump and proceed
with maintenance.
Electricalsafetydataforintrinsicallysafecircuit:
Leakage detector Ui:30V;Ii:120mA;Pi:1,3W
 Ci:0,3nF;Li:~0mH
Cable Cc:200pF/m;Lc:1µH/m;Lc/Rc=30µH/Ω
7. DETERMINING THE ROTATION DIRECTION OF THE IMPELLER
(only three phase models)
Before making the definitive connections of three phase motors the
direction of rotation of the motor pump must be determined.
Thereisalabelonthepump,whichcanbeseeninFig. 10 page 127,
whichindicatesthecorrectdirectionofrotationoftheimpeller(green
arrow)andtherelativedirectionofthecounterstroke(redarrow).
WARNING:Allofthefollowingoperationsshouldbecarriedoutina
secureplace,inabsenceofpotentiallyexplosiveatmospheres;ifthis
isnotpossible,youmustcarryoutthetestingwithadevicewhichcon-
trols the sequence phases installed inside the electric panel.
Models up to 1.5 kW
• followtheprecautionsdescribedinthe“SAFETYPRECAUTIONS”
manual;
• laythepumphorizontallyonitssideusingwoodenwedgestolimit
movement.
• provisionallyconnecttheyellow-greenwiretotheearthplugofthe
systemandsuccessivelythepowersupplycablestothecontactor;
• makesuretherearenopeopleorobjectswithinaradiusofatleast
1 meter of the pump;
• turnonthestartswitchforafewmoments;
• watchtheimpellerasitstopsthroughthesuctionpipeorgrilland
checkthatitisturninganticlockwise.
Models over 1.5 kW
• followtheprecautionsdescribedinthe“SAFETYPRECAUTIONS”
manual;
• positionthepumpvertically,restingitonthesupportfeetoronthe
base plate;
• securethepumpwithanadequatelysizedropeorchainattached
totheupperhandletoavoidaccidentaldroppingwhencheckingthe
counterstroke.
• WARNING: thecounterstrokecanbeverystrong.Donotstaynear
the pump sockets during the procedure.
• temporarilyconnecttheyellow-greenwiretotheearthplugofthe
systemandthenconnectthepowersupplycablesofthesystem.
• makesuretherearenopeopleorobjectswithinaradiusofatleast
1 meter of the pump;
• turnonthestartswitchforafewmoments;
• watchtheimpellerasitstopsthroughthesuctionpipeorgrilland
checkthattherotationisanticlockwise,alsocheckthatthecounter-
strokeisfacingthesamedirectionastheredarrowonthelabelof
the pump.
Ifthedirectionofrotationisnotcorrect,invertanytwophaseconnec-
tionsatthesolenoidswitchandtryagain.
Stabilise the corresponding connection in the correct direction of rota-
tionandMARKtheexactconnectionsequenceofthesystemleads.
DEACTIVATEthetemporarypowerconnectionandinstallthemotor
pump in its permanent position.
Proceedwiththefinalelectricconnection,connectingtheyellow-green
wiretothegroundfirst,andthencontinuewiththeotherwires.
8. INSTALLATION OF FLOAT SWITCHES
InthecasewhereinstallationofanATEXpumpprovidealevelcon-
trolsystemthroughfloatswitches,thereneedstobeatleast2(start-
upandshutdown)and,ifinstalledinahazardousarea,theymustbe
certified for potentially explosive atmospheres. In this instance, the
connection to the electric control panel must be carried out using an
IntrinsicSafetyinterfacesuchasaZenersafetybarrieroragalvanic
isolation barrier.
Thefloat switchesmust beinstalled onthe insideof thetank away
fromanyvorticesorfallingwaterandinsuchawaythatthecablesdo
notbecometwistedandensurethattheyarenotimpedingthemove-
ment of the float.
In the presence of strong turbulence, it is advised to fix the float
switchestoarigidbracketmountedinsidetheshaft.
Float switches should be installed in such a way that the minimum
levelofliquidisNEVERlower:
• thanthetopcoverofthemotorpumpincasesofcontinuousduty
(S1)
• thanthepumpbodyincasesofintermittentperiodicalduty(S3)
Ensurethattheswitchfrom shut down to start-upoccursonlyand
exclusivelyifbothofthefloatsfindthemselvesinthepositionshown
in Fig 11 page 127.
Ensurethattheswitchfrom start-up to shut downoccursonlyand
exclusivelyifbothofthefloatsfindthemselvesinthepositionshown
in Fig 12 page 127.
Theelectricconnectionofthefloatsmustbecarriedoutinsuchaway
thatensurestheshutdownofthepumpincasesofamalfunctioning
float.
Tofinish,itisadvisabletocarryoutsystemtestingtoensureitsperfect
operation.
9. MAINTENANCE
To ensure a correct and long-lasting operation of the pump it is neces-
sarytoperformregularinspections,periodicmaintenanceandrepla-
cement of used parts.
Notfollowingthisconductmayinferthelossoftheguarantee,therefo-
recompromisingthesecurityofthemachineandcreatingahazardous
situation.
Beforeinspectionandmaintenanceoperations,carefullyreadandap-
plythesafetyprecautionsindicatedintherelativemanual.
WARNING: any interventions of the pump in -EX versions
must be carried out by an authorised Service Centre or by
authorised technicians using only original spare parts.
Failure to comply with this conduct infers the loss of the ATEX
certification of the machine and invalidates the guarantee.
Beforeperforminganycleaningand/ormaintenanceprocedures,en-
surethattheelectricitysupplyhasbeendisconnected.
Todisconnectthepluglesspumpfromthepowersupplynetwork,di-
sconnectthephasewiresfirstandthentheyellow-greenearthwire.
9.1 Checking parts subject to wear
Duringprogrammedmaintenanceoratanytimeinwhichtheperfor-
mance of the motor pump is reduced or if vibrations and noise increa-
se,itisnecessarytoperformaninspectionandreplacethehydraulic
partssubjecttowear.
Avoidusingthepumpinabnormalconditionssothatanysuddenbre-
akage of rotating parts does not create a hazardous situation or cause
damage to the motor.
Ifthehydraulicpartbecomesblocked,itshouldbecleanedthoroughly.
9.2 Spare Parts
Requests and/or orders of spare parts used only in explosion-proof
ATEXcertifiedpumpswillbedeclinedbyZenitItaliaS.r.l.asanyrevi-
sionand/orrepairsofthesemodelscanonlybecarriedoutbyZenit
ItaliaS.r.l.orbyanauthorisedServiceCentre.
9.3 Checking and changing the oil in the mechanical seal cham-
ber (fig. 13 A/B/C/D/E/F page 128)
Theoilshouldbechangedevery5000-7000workinghours,oratleast
onceayear.
Theoperationshouldbecarriedoutasfollows:
• Followtheprecautionsdescribedinthe“SAFETYPRECAUTIONS”
manual;
• Positionthemotorpumphorizontally;
• Unscrewtheoilchamberlid
• Allowtheoiltodrainintoasuitablecontainer,oruseanoilaspiration
device; do not dispose of the oil into the environment, deliver it to a
wasteseparationcentre;

EN
12
water solutions
User and maintenance manual – Translation of original instructions
• Checkthattheoilisfreeofwater,thisindicatesthatthemechanical
sealisstillingoodconditionandthechambercanberefilledwith
fresh oil;
• Ifaverysmallquantityofwaterisdetectedinthebottomoftheshaft,
thiswill be dueto condensationand is considerednormal, rather
thanasignofanyfaultwiththemechanicalseal;
• Ifthereisasubstantialquantityofwaterintheoilchamber,theme-
chanicalsealneedstobeinspectedandperhapsreplacedbyanew
one;
• Anyreplacementofthemechanicalsealmustbecarriedoutbyan
authorised Service Centre;
• Fillthechambercompletelywithbiodegradableoil,CASTROLPRO-
DUCTL320orsimilar.Ifnoneoftheseoilsareavailable,contact
Zenit.
Thequantityofoilrequiredisreportedinthetable.
Model min
ml
max
ml
DGF-DRF-MAF-SMF-GRF-APF 195 210
DGN250-300/2/G65V-65-80 395 430
DGN400-550/2/65-80 600 650
DGN200/4/65-80-100 600 650
DGN300-400/4/65-80-100 905 980
DGN150/6/65-80-100 600 650
DGN250/6/100-150 905 980
DRN250-300/2/65-80 395 430
DRN400-550/2/65-80-100 600 650
DRN200/4/80-100 600 650
DRN300-400/4/80-100 905 980
DRN150/6/80-100 600 650
DRN250/6/100-150 905 980
MAN250-300/2/G65V-65-80 395 430
MAN 400-550/2/65-80-100 600 650
MAN 200/4/80-100 600 650
MAN300-400/4/80-100 905 980
MAN 150/6/80-100 600 650
MAN 250/6/100-150 905 980
GRN 250-300/2/G40H 395 430
GRN 400-550/2/G50H 905 980
GRN300-400/4/80-100 905 980
APN250-300/2/G40H 395 430
APN 400-550/2/G40H 905 980
• Once finished, tighten the cap and re-install the pump.
9.4 Checking the bearings
The estimated length of safe operation of the bearings is 20,000 hours
ofduty,afterwhichtheyneedtobereplaced.
Checkthestateofthebearingsevery7,000hoursandeveryworking
year.
Itthecasewhereexcessivenoise,contactthesaidmanufactureroran
authorised Service Centre in order to obtain a replacement.
9.5 Mechanical Seals
The estimated length of safe operation of the mechanical seals is
20,000hoursofdutyinnormalconditionsand7,000hoursofdutyin
abnormaloperatingconditions (dryorin presence ofsoiledliquids),
afterwhichtheyneedtobereplaced.
9.6 Maintenance of the cooling system
• Installationwithacoolingjacketrequiresperiodicmaintenanceinor-
dertokeepthegapbetweenthebodyandthejacketcleanandfree
fromencrusting.Thefrequencyofmaintenanceinterventionvaries
depending on the liquid used for cooling.
• Tocleaninsidethejacket,proceedasfollows:
• undothescrewsfromthetightenedsealingringofthejacketand
remove;
• unthreadthejacketfromthesideofthepumpmotor,makingsure
not to damage the cables or electrical connections;
• thoroughlycleantheinletanddrainpipesforcoolingliquid,theO.R.
base,theexternalsurfaceofthebodyandtheinsideofthecooling
jacket,takingcaretoremoveanycrusting;
• throughoutthisoperation,thecablesremaininsidethejacket,pay
utmost attention not to damage them;
• replace the lubricated O.R. and mount them back into their place;
• positionthejacketintoitsplaceandfastenitwiththesealingring;
• tightenthefasteningscrewsina“cross”order
10. TROUBLESHOOTING GUIDE
PROBLEM CAUSE REMEDY
Thepumpdoesn’twork Electrical protections tripping Check the calibration of the protections.
Carryoutaninsulationtest:iftheresultisnegative,contactanautho-
rised service centre for repair.
Impeller blocked: contact an authorized service centre.
In case of repeated protection tripping, contact an authorised service
centre.
Humiditysensortripping Contactanauthorisedservicecentretoverifytheintegrityofmechani-
cal seals and O-ring.
Faultylevelcontrol Checkthecorrectoperationofthefloatandifitcanmovefreelyoris
held in the OFF position.
Thermal protector tripping Allowthepumptocooldownandresetthethermalprotectorfromthe
electrical panel.
The thermal protection trips after
a short operating time
The pump is immersed in a liquid
whichistoohot
Checkthetemperatureoftheliquidandallowtocoolifnecessary.
Waituntilthepumphascooled.
Impeller blocked: Contact an authorised service centre.
Thepumpworksbutthecapacity
is reduced or nil
Foreign bodies inside the pump Contact an authorised service centre.
Foreign bodies in the discharge
pipe or valve
Cleanthehydrauliccomponents.
Wrongdirectionofrotation Inverttheelectricalconnectionsoftwoofthethreephases.
Gatevalvepartiallyclosed Fullyopenthegatevalve.
Vibration or excessive noise Bearingdamagedorworn Contact an authorised service centre.

126
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L
1 2
3
5A 5B
4
L
DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN
DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN DGF-DRF-MAF-SMF-GRF-APF
DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN

127
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11 12
ROTAZIONE CORRETTA
CORRECT SPIN
CONTRACCOLPO
COUNTERKICK
VISTA DALL’ALTO
VIEWED FROM ABOVE
10
76
L
L
8A 8B8
9
ENTRATA
IN
USCITA
OUT
S1
S3
S1
S3
S1
S3
DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN DGF-DRF-MAF-SMF-GRF-APF DGN-DRN-MAN-GRN-APN

128
water solutions
13 DGF-DRF-MAF-SMF-GRF-APF
13 DGN-DRN-MAN-GRN-APN
A B C
D E F
A B C
D E F

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14
TC
IT
EN
FR
DE
NL
ES
PT
EL
DA
FI
SV
BG
HU
PL
RO
ET
LV
LT
CS
SK
SL
HR
RU
CN
~1 50/60Hz
N L
PE
M
1~
TP TP S
C
TSC
N L
PE
M
1~
TP TP
C
NC
TCD
L
D C
N
PE
M
1~
TP TP
NC
L
D C
N
PE
M
1~
TP TP S
TSCD
DGF 100/2/G40V A1CM5
NC TC 2SIC 10
230
0.7400000000
30m
TYPE
VERS
S.N.
kW Hz
YEAR
I.CL.
μ F
cos φ
V
An min
-1
Kg
V
EN 60034-1
A
S3 / S1(CC-CCE)
S1S1
%
S H
max m
Qmin l/s
H
min m
Qmax l/s
Tmax °C
Ex db k IIB T4
II 2GD Ex tb IIIC T135°C IP68
2460
EPT 11 ATEX 0464 X
Zenit Italia s.r.l.
via dell’Industria, 11
I-41018 S.Cesario s.P. (MO)
zenit.com
WARNING: Flameproof joints cannot be repaired
COLLEGAMENTI ELETTRICI
ELECTRICAL CONNECTIONS
BRANCHEMENTS ELECTRIQUES
ELEKTRISCHE VERBINDUNGEN
ELEKTRISCHE AANSLUITINGEN
CONEXIONES ELÉCTRICAS
LIGAÇÕES ELÉTRICAS
ΗΛΕΚΤΡΙΚΕΣ ΣΥΝΔΕΣΕΙΣ
ELEKTRISKE FORBINDELSER
SÄHKÖLIITÄNNÄT
ELANSLUTNINGAR
ЕЛЕКТРИЧЕСКО СВЪРЗВАНЕ
VILLAMOS CSATLAKOZÁS
POŁĄCZENIA ELEKTRYCZNE
CONEXIUNILE ELECTRICE
ELEKTRIÜHENDUSED
ELEKTRISKIE SAVIENOJUMI
ELEKTROS PAJUNGIMAS
ELEKTRICKÁ ZAPOJENÍ
ELEKTRICKÉ KÁBLE
ELEKTRIČNE POVEZAVE
ELEKTRIČNI SPOJEVI
ЭЛЕКТРИЧЕСКИЕ СОЕДИНЕНИЯ
电线连接
IT
EN
FR
DE
NL
ES
PT
EL
DA
FI
SV
BG
HU
PL
RO
Per effettuare il collegamento elettrico, fare riferimento allo schema corrispon-
dente alla versione dell’elettropompa indicata in targhetta
For electrical connection, refer to the diagram corresponding to the electric
pump version indicated on the plate
Pour effectuer le branchement électrique, veuillez faire référence au schéma
correspondant à la version de l’électropompe indiquée sur la plaquette
Beziehen Sie sich zur Ausführung des elektrischen Anschlusses auf das Schema,
das der auf dem Typenschild aufgeführten Ausführung der Elektropumpe entspricht
Raadpleeg voor het uitvoeren van de elektrische aansluiting het schema dat hoort
bij de versie van de elektropomp die staat aangegeven op het typeplaatje
Para efectuar la conexión eléctrica, consulte el esquema correspondiente a la
versión de la electrobomba indicada en la placa
Para efetuar a conexão elétrica, consultar o esquema correspondente à ver-
são da eletrobomba indicada na plaqueta
Για την ηλεκτρική σύνδεση, ανατρέξτε στο αντίστοιχο σχεδιάγραμμα για την έκ-
δοση της ηλεκτρικής αντλίας που υποδεικνύεται στην πινακίδα
Vedrørende udførelsen af den elektriske tilslutning henvises til det ledningsdia-
gram der svarer pumpens version angivet på typeskiltet
Sähköliitännän suorittamiseksi, katso kilvessä kerrottua sähköpumppumallia
vastaavaa kaaviota
För att utföra elanslutningen, hänvisas till schemat som överensstämmer med
elpumpen som anges på maskinskylten
При извършване на електрическо свързване, направете справка със съответ-
ната схема за варианта на електрическата помпа, указан на табелата
A villamos bekötés elvégzéséhez hivatkozzon a táblán feltüntetett elektromos
szivattyú modellnek megfelelő műszaki rajzra
Aby wykonać połączenie elektryczne należy odnieść się do schematu odpo-
wiadającego wersji pompy elektrycznej wskazanej na tabliczce rmowej
Pentru efectuarea conexiunilor electrice consultaţi schema care corespunde
versiunii de electropompă indicată pe plăcuţă
ET
LV
LT
CS
SK
SL
HR
RU
CN
Vaadake elektriühenduse teostamiseks elektripumba versioonile vastavat
joonist sildil
Lai veiktu elektrisko savienojumu, atsaucieties uz plāksnes norādītās elek-
triskā sūkņa versijai atbilstošo shēmu
Informacijos apie elektros jungtis žr. diagramoje, atitinkančioje pagal elektri-
nio siurblio versiją, kuri nurodyta plokštelėje
Pro proveden elektrického zapojení se odkazujeme na odpovídající schéma
verze ponorného čerpadla uvedené na štítku
Pri vykonaní zapojenia k elektrickej sieti si pozrite diagram zodpovedajúci
verzii elektrického čerpadla uvedenej na štítku
Za izvršitev električne povezave, se pridržujte odgovarjajoče sheme za posa-
mezno električno črpalko, kot navedeno na tablici
Za izvršenje električnog priključka, pogledajte shemu koja odgovara verziji
elektro-pumpe, koja je naznačena na pločici.
Для выполнения подключения к электросети см. схему, соответ-
ствующую версии электронасоса, указанной на паспортной табличке
电气联接请参与对应的接线图。铭牌上所显示的水泵版本
DGF - DRF - MAF - SMF - GRF - APF

130
water solutions
15
TTS
~3 50/60Hz DOL
TCD
N L
PE
M
1~
TP TP
NC D
N L
PE
M
1~
TP TP S
D
TSCD
L1 L3
PE
M
3~
L2
TP TP
NC
L1 L3
PE
M
3~
L2
TP TP S
DGN - DRN - MAN - SMN - GRN - APN

131
water solutions
N
G
M
GV
B
AYC
L - N L1 - L2 - L3 C D TP NC S PE
IT Alimentazione
monofase Alimentazione trifase Condensatore Disgiuntore Protezione termica Non collegato Sonda Terra
EN Single-phase
powersupply Three-phase powersupply Capacitor Trip unit Thermal protection Not connected Probe Ground
FR Alimentation
monophasée Alimentation triphasée Condensateur Disjoncteur Protection thermique Pas Connecté Sonde Terre
DE Einphasige
Stromversorgung Dreiphasige Stromversorgung Kondensator Selbststätiger Unterbrecher Wärmeschutz Nicht angeschlossen Sonde Erdung
NL Eenfasige
voeding Driefasige voeding Condensator Uitschakelaar Thermische beveiliging Niet verbonden Sonde Aarde
ES Alimentación
monofásica Alimentación trifásica Condensador Disyuntor Protección térmica No conectado Sonda Tierra
PT Alimentação
monofásica Alimentação trifásica Condensador Disjuntor Proteção térmica Não ligado Sonda Terra
EL Μονοφασική
τροφοδοσία Τριφασική τροφοδοσία Συμπυκνωτής Διακόπτης Θερμική προστασία Μη συνδεδεμενος Αισθητήρας Γείωση
DA Forsyning
monofase Forsyning tre faser Kondensator Effektafbryder Varmesikring Ikke tilsluttet Sonde Jord
FI Yksivaihesyöttö Kolmivaihesyöttö Kondensaattori Rajoitin Lämpösuojaus Ei
kytketty Anturi Maa
SV Enfas
försörjning Trefas försörjning Kondensator Brytare Termiskt skydd Ej ansluten Sond Jord
BG Еднофазно
захранване Трифазно захранване Кондензатор Разделител Топлинна защита Нее свързан Сонда Заземяване
HU Egyfázisú
vezeték Háromfázisú vezeték Kondenzátor Áramköri megszakító Hőszigetelés Nincs csatlakoztatva Szonda Földelés
PL Zasilanie
jednofazowe Zasilanie trójfazowe Kondensator Wyłącznik automatyczny Ochrona termiczna Nie podłączony Czujnik Uziemienie
RO Alimentarea
monofază Alimentarea trifazică Condensator Disjunctor Protecţie termică Neconectat Senzorul Împământarea
ET Ühefaasiline
toide Kolmefaasiline toide Kondensaator Automaatkork Termiline kaitse Pole ühendatud Mõõtepea Maandus
LV Vienfāzes
strāvaspadeve Trīsfāžu strāvaspadeve Kondensators Jaudasslēdzis Termiskā aizsardzība Nav savienota Zonde Iezemējums
LT Vienfazis
maitinimas Trifazis maitinimas Kondensatorius Atjungiklis Terminė apsauga Neprijungta Zondas Įžeminimas
CS Přívod
monofáze Přívod třífáze Kondensátor Spínač Tepelná ochrana Nepřipojený Sonda Země
SK Monofázové
napájanie Trojfázové napájanie Kondenzátor stič Tepelná ochrana Nezapojený Sonda Zem
SL Enofazno
napajanje Trifazno napajanje Kondenzator Odklopnik Termično varovalo Ni priključen Senzor Ozemljitev
HR Jednofazno
napajanje Trofazno napajanje Kondenzator Sklopka Toplinska zaštita Nije spojeno Sonda Uzemljenje
RU Однофазное
питание Трехфазное питание Конденсатор Прерыватель Термическая защита Не подключен Датчик Земля
CN 火线 零线 电容器 跳闸装置 热保护 未连接 探头 地线
IT: A vostra cura, EN: Atyourcare,FR: Par vos soins, DE: InIhrerPege,NL: Dooruwzorgen,ES: Por cuenta del usuario, PT: Às custas do cliente,
EL: Στηφροντίδασας,DA: PålagtDem,FI: Teidän vastuullanne, SV: Idinvård,BG: Втвоягрижа,HU: Az Ön ellátás, PL: Wswojejopiece,
RO: Înîngrijireadumneavoastră,ET: Oma hooldus, LV: Jūsuaprūpē,LT: Jūsųpriežiūra,CS: Vevašípéči,SK: Vovašejstarostlivosti,SL: V vaši oskrbi,
HR: Uvašojbrizi,RU: Ввашейпомощи,CN: 小心连接
IT: Nero, EN: Black, FR: Noir, DE: Schwarz,NL: Zwart,ES: Negro, PT: Preto, EL: Μαύρο,DA: Sort, FI: Musta, SV: Svart, BG: Черен,HU: Fekete,
PL: Czarny,RO: Negru, ET: Must, LV: Melna, LT: Juoda, CS: Černý,SK: Čierny,SL: Črna,HR: Crna, RU: Черный,CN: 黑线
IT: Marrone, EN: Brown,FR: Marron, DE: Braun, NL: Bruin, ES: Marrón, PT: Castanho, EL: Καφέ,DA: Brun, FI: Ruskea, SV: Brun, BG: Кафяв,HU: Barna,
PL: Brązowy,RO: Maro, ET: Pruun, LV: Brūna,LT: Ruda, CS: Hnědý,SK: Hnedý,SL: Rjava,HR: Smeđa,RU: Коричневый,CN: 棕线
IT: Grigio, EN: Grey,FR: Gris, DE: Grau, NL: Grijs,ES: Gris, PT: Cinzento, EL: Γκρι,DA: Grå,FI: Harmaa, SV: Grå,BG: Сив,HU: Szürke,PL: Szary,
RO: Gri, ET: Hall, LV: Pelēka,LT: Pilka, CS: Šedivý,SK: Sivý,SL: Siva, HR: Siva, RU: Серый,CN: 灰线
IT: Blu, EN: Blue, FR: Bleu, DE: Blau, NL: Blauw,ES: Azul, PT: Azul, EL: Μπλε,DA: Blå,FI: Sininen, SV: Blå,BG: Син,HU: Kék, PL: Niebieski,
RO: Albastru, ET: Sinine, LV: Zila, LT: Mėlyna,CS: Modrý,SK: Modrý,SL: Modra, HR: Plava, RU: Синий,CN: 蓝线
IT: Giallo/Verde, EN: Yellow/Green,FR: Jaune/Vert, DE: Gelb/Grün,NL: Geel/Groen, ES: Amarillo/Verde, PT: Amarelo/Verde, EL: Κίτρινο/Πράσινο,
DA: Gul/Grøn,FI: Keltainen/Vihreä, SV: Gul/Grön, BG: Жълт/Зелен,HU: Sárga/Zöld, PL: Żółty/Zielono,RO: Galben/Verde, ET: Kollane/Roheline,
LV: Dzeltena/Roheline,LT: Geltona/Žalia,CS: Žlutý/Zelený,SK: Žltý/Zelený,SL: Rumena/Zelena, HR: Žuta/Zelena,RU: Зеленый/Желто,CN: 黄线/绿线

132
water solutions
IT
EN
FR
DE
NL
ES
PT
EL
DA
FI
SV
BG
HU
PL
RO
ET
LV
LT
CS
SK
SL
HR
RU
CN
3
4
5
11
13
16
15
12
21
14
14
9
12
1
6
7
8
3
4
5
13
16
15
12
21
14
14
9
12
1
6
7
8
19
3
4
5
13
16
15
14
14
9
1
6
7
8
12
20
DGF 75÷200/2/G40V
DGF 150-200/2/G50V-G65V
DGF 150-200/2/G40H
DGF 75÷200/2/G50H
DGF 150-200/2/65-80
DGF 100/4/65-80
27
11
27
11
27
12
COMPONENTI PRINCIPALI
MAIN COMPONENTS
COMPOSANTS PRINCIPAUX
HAUPTKOMPONENTEN
HOOFDCOMPONENTEN
COMPONENTES PRINCIPALES
COMPONENTES PRINCIPAIS
ΒΑΣΙΚΑ ΕΞΑΡΤΗΜΑΤΑ
HOVEDKOMPONENTER
PÄÄASIALLISET OSAT
HUVUDSAKLIGA KOMPONENTER
ОСНОВНИ ЧАСТИ
FŐ ÖSSZETEVŐK
GŁÓWNE ELEMENTY
COMPONENTE PRINCIPALE
PÕHIOSAD
GALVENĀS SASTĀVDAĻAS
PAGRINDINĖS SUDEDAMOSIOS DALYS
HLAVNÍ SOUČÁSTI
ZÁKLADNÉ ČASTI
GLAVNE KOMPONENTE
GLAVNI ELEMENTI
ОСНОВНЫЕ СОСТАВНЫЕ ЧАСТИ
主要零部件

133
water solutions
19
3
4
5
13
16
15
14
14
9
1
6
7
8
12
20
3
4
5
13
16
15
12
22
14
14
9
12
1
6
7
8
21
3
4
5
13
16
15
12
22
14
14
9
12
1
6
7
8
21
DRF 75-100/2/G40V
DRF 150-200/2/G50V-G65V
DRF 75-100/2/G40H
DRF 150-200/2/G50H
DRF 100/4/65-80-100
11
27 11
27
11
27
12

134
water solutions
19
3
4
5
13
16
15
12
14
14
9
1
6
7
8
12
20
3
4
5
13
16
15
12
21
14
14
9
12
1
6
7
8
MAF 100/4/65-80-100
SMF 100÷200/2/G50H
11
27
11
27

135
water solutions
3
4
5
13
16
15
17
14
9
1
6
7
8
12
14 12
18
3
4
5
13
16
15
12
22
14
14
9
1
6
7
8
12
GRF 150-200/2/G40H
APF 150-200/2/G40H
11
27
11
27

136
water solutions
4
5
10
16
15
20
12
14
26
1
6
7
8
14
3
2
11
12
13
4
14
10
16
15
20
12
5
1
6
7
8
14
3
2
11
12
13
19
4
14
10
16
15
20
12
5
1
6
7
8
14
3
2
11
12 13
19
DRN 250÷550/2/65-80
DRN 400-550/2/100
DRN 200÷400/4/80-100
DRN 150/6/80-100
DRN 250/6/100-150
DGN 250-300/2/G65V
DGN 250÷550/2/65-80
DGN 200÷400/4/65-80-100
DGN 150/6/65-80-100
DGN 250/6/100-150
23
24
9
25
26
23
24
25
9
26
23
24
25
9
27
27 27 27
27 27

137
water solutions
4
5
10
16
15
20
12
14
1
6
7
8
14
3
2
11
12
13
4
14
10
16
15
20
12
5
1
6
7
8
14
3
2
11
12 13
19
4
5
10
16
15
17
12
14
1
6
7
8
14
3
2
11
12 13
18
4
14
10
16
15
17
12
5
1
6
7
8
14
3
2
11
12 13
18
20
GRN 300÷550/2/G50H
GRN 300-400/4/80-100
GRN 250/2/G40H
MAN 250-300/2/G65V
MAN 250÷550/2/65-80
MAN 400-550/2/100
MAN 200÷400/4/80-100
MAN 150-250/6/80-100-150
26
23
24
25
9
26
23
24
25
9
26
23
24
25
9
26
23
24
25
9
27
27
27 27
27
27
27
27

138
water solutions
4
10
16
15
22
12
5
1
6
7
8
14
3
2
11
12 13
APN 250/2/G40H
APN 300÷550/2/G50H
26
23
24
25
9
27 27
IT EN FR DE NL ES
1maniglia handle poignée griff handvat mango
2coperchio cover couvercle deckel klep cubierta
3carcassa motore motorbody corps moteur motorgehäuse motorkast cuerpo del motor
4cavo cable câble kabel kabel cable
5pressacavo cable gland serre-câble kabelpresse drukkabel prensa cables
6cuscinetto superiore upper bearing palier supérieur oberes lager bovenste lager cojinetesuperior
7statore stator stator stator stator estator
8albero con rotore shaftwithrotor arbre avec rotor wellemitrotor as met rotor ejeconrotor
9cuscinetto inferiore lowerbearing palier inférieur unteres lager onderste lager cojineteinferior
10 supporto cuscinetto inf. lowerbearingsupport support palier inf. untere lagerbock onderste lagersteun. cojinetedesoporteinferior
11 supporto intermedio intermediate support support intermédiaire mittellager tussensteun soporte intermedio
12 tenuta meccanica mechanical seal jointmécanique mechanische dichtung mechanische afdichting sello mecánico
13 flangia camera olio oil flange bride chambre à huile flansch ölkammer flens oliekamer brida de la cámara de aceite
14 tappo cap bouchon deckel schroefdop tapa
15 girante impeller roue laufrad waaier impulsor
16 corpo pompa pumpbody corps de la pompe pumpenkörper pomphuis cuerpo de la bomba
17 piatto trituratore cutting disk disquebroyeur teller zerkleinerer snijplaat disco triturador
18 coltello trituratore cutter couteaubroyeur messer zerkleinerer snijmes cortadora
19 guarnizione gasket joint dichtung pakkingring junta
20 flangia di aspirazione aspiration flange bride d'aspiration saugflansch zuigflens brida de succión
21 basamento base plate bâti pumpenfüße onderplaat base
22 griglia grill grille gitter rooster filtro
23 camicia di raffreddamento (*) coolingjacket(*) chemise de refroidissement
(*) kühlmantel(*) koelmantel (*) manguito de refrigeración (*)
24 anello di ritenuta (**) sealing ring (**) bague d'étanchéité (**) rückhaltering(**) borgring (**) aro de sellado (**)
25 cannula (**) pipe (**) canule (**) kanüle(**) canule(**) tubo (**)
26 sonda di umidità (*) humidityprobe(*) sonde d'humidité (*) feuchtigkeitssonde (*) vochtigheidssonde (*) sonda de humedad (*)
27 vite collegamento di terra earthwirescrewconnection vis de raccordement à la terre schraube erdverbindung schroef aardverbinding tornillo para la conexión de
cable a tierra