Caffini Libellula 1/3" Series Operation instructions

EN
USE AND MAINTENANCE
INSTRUCTIONS
SELF-PRIMING
DIAPHRAGM PUMPS
LIBELLULA 1/3" SERIES
Read this user manual before installing, operating, using and maintaining
this equipment.
www.caffinipumps.it
GB

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
2
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
2
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
WARNING
D O N O N O P E R A T E T H E P U M P U N T I L Y O U H A V E R E AD A N D
UN D E R S T O O D T H I S M A N U A L .
CA F F I N I P U M P S D E C L I N E S A L L A N D E V E R Y L I A B I L I T Y F O R
DA M A G E D U E T O N E G L I G E N C E A N D F A I L U R E T O C O M P L Y W I T H
TH E I N S T R U C T I O N S I N T H IS M A N U A L .
CA F F I N I P U M P S W I L L N O T B E L I A B L E F O R D A M A G E C A U S E D B Y
IN C O R R E C T I N T E R P R E T A T IO N O F T H E I N S T R U C T I O N S I N T H I S
MA N U A L O R F O R D A M A G E C A U S E D B Y I N C O R R E C T
IN S T A L L A T I O N A N D / O R B Y I M P R O P E R U S E O F T H E P U M P
IT S E L F .

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
3
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
3
TABLE OF CONTENTS page
1.PRESENTATION………………………………………………………………………………………………………………………………..............4

2.WARRANTY………………………………………………………………………………………………………………………………………………….4

3.MANUFACTURER……………………………………………………………………………………........................................................4

4.INFORMATIONONPLATES…………………………………………………………………………………………………………………………….5

5.DESCRIPTIONOFTHEMACHINE……………………………………………………………..……………………………………….…...........5

6.USE………………………………………………………………………………………………………………………………………………………………6

7.SOUNDLEVEL……………………………………………………………………………….……………………………………..…………….………..7

8.SAFETYANDACCIDENTPREVENTION………………………………………………………………………………….….…………………….7

9.SAFETYSTANDARDS………………………………………………………………………………………………………………………………………7

10.HANDLINGANDTRANSPORT………………………………………………………..………………………………………………………………9

11.STORAGE……………………………………………………………………………….………………………………………………………….………..9

12.INSTALLATION………………………………………………………………………………………………………………….……………………….10

13.BEFORESTARTUP………………………………………………………………………………………………………………………..…………..11

14.MAINTENANCE…………………………………………………………………………………………………………………….…………………….12

15.SPAREPARTS………………………………………………………………………………………..…....................................................13

16.DISPOSAL………………………………………………………………………………………………………………………………………………….13

17.OPERATINGPROBLEMS:CAUSESANDSOLUTIONS……………………………………………………………………………………14

18.FEATURES……………………………………………………………………………………….………………………………………………………..15
1. PRESENTATION................................................................................................................................4
2. WARRANTY ......................................................................................................................................4
3. MANUFACTURER.............................................................................................................................4
4. INFORMATION ON PLATES .............................................................................................................5
5. DESCRIPTION OF THE MACHINE ...................................................................................................5
6. USE...................................................................................................................................................6
7. SOUND LEVEL..................................................................................................................................7
8. SAFETY AND ACCIDENT PREVENTION ..........................................................................................7
9. SAFETY STANDARDS ......................................................................................................................7
10. HANDLING AND TRANSPORT.........................................................................................................9
11. STORAGE .........................................................................................................................................9
12. INSTALLATION................................................................................................................................10
13 BEFORE START-UP ........................................................................................................................11
14. MAINTENANCE ..............................................................................................................................12
15. SPARE PARTS ................................................................................................................................13
16. DISPOSAL ......................................................................................................................................13
17. OPERATING PROBLEMS: CAUSES AND SOLUTIONS .................................................................14
18. FEATURES ......................................................................................................................................15

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
4
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
4
1. PRESENTATION
This manual contains all information considered necessary for the knowledge, good use and routine
maintenanceoftheLibellula1/3”pump(hereinafter,alsocalledmachine),manufacturedbyCAFFINICIPRIANO
S.r.l., hereinafteralsocalledManufacturingcompany or Manufacturer.Thenoncompliancewith thismanual
causesthecancellation,bytheManufacturingcompany,ofthewarrantyitsupplieswiththemachine.Forany
repairs or revisions entailing complex operations, directlycontact the Manufacturing company for ready and
accurateaftersalestechnicalassistance.

TheseareCOPYoftheoriginalinstructions.
2. WARRANTY
Upon receipt of the material, immediately check it for damages due to transport. Also check the exact
correspondence of the transport document. Any claims must, under penalty of expiration, be immediately
contested to the courier in the transport document and notified within seven days to the Manufacturer by
meansofregisteredletterwithacknowledgementreceipt.Whensendinganycommunication,alwaysindicate
thetypeandmodelofthemachineprintedonappropriateplateorpunchedneartheoilintroductionplug,and
theserialand/orseriesnumber.Allourproductshavea12monthwarrantystartingfromthecommissioning
date and, however, for not more than 18 months from the date of delivery. The repairs carried out under
warranty do not interrupt the warranty period. The warranty refers to material or processing defects that
jeopardisethefunctioningoftheproductormakeitunsuitablefortheuseforwhichtheproductisintended,as
longastimelynotifiedand,however,notlaterthan2daysaftertheirfinding.Thedamagesderivingfromthe
physical/chemical features of the sucked liquid are excluded,as are the damages of the parts that are, for
natureordestination,subjecttowearordeterioration(sealgaskets,diaphragms,vacuumandpressurevalves,
rubberorplasticparts),orthatdependfromthenoncompliancewithouruseormaintenanceinstructions,bad
or inadequate use or storage of the product or amendments or repairs made by staff not authorised by
ourselves.
3. MANUFACTURER
The Libellula 1/3” series pumps are manufactured by CAFFINI CIPRIANO S.r.l. with offices inLemignano di
Collecchio (Parma)  ITALY  post code 43044  ViaG.DiVittorion.46 Tel. +39 0521 804325 Fax +39 0521
804145–email:[email protected]RegisteredwiththeChamberofCommerceofParmawithn.175881in
theCompanyRegisternr.MechanizedPR017469taxcodeandVATn.IT02002550347.

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
5
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
5
4. INFORMATION ON PLATES
Each pump has a nameplate that provides information about the pump. The nameplates are located on the
gearbox support or on protection.When ordering spare parts, you must identify the following pump
informations:
•Model
•Dimensions
•Serialnumber
•Itemnumbersoftherequiredparts
Refertotheratingplateonthegearunitsupportforassistance.Thearticlenumbersarefoundinthepartslist
annexed.
Attention!Whenwornlabelswillreapply.
Serial L13TAA1RNVTWZ21 nr. XXXXXX
/2016
Power Kw 2,8 Weight kg 94 Max Bar 1,5
5. DESCRIPTION OF THE MACHINE
TheLibellula1/3"isaselfprimingdiaphragmpumpwithDN80flangedorGas3"threadedsuctionanddeliveryports.
Thediaphragmisdrivenbyaselflubricatedspringorrigidconnectingrodthatdoesnotrequiremaintenanceforthefirst
5000hoursofwork.
Thereducerconnectingtheenginetotheconnectingrodhandlesystemcanbemadeoflightaluminiumalloyorincast
iron.Thetransmissiongearscanbestraightorhelicalteethwithdriveratio1:43or1:38or1:30,tosupplytherequested
capacityuponvaryingofnumberofrpmofthedrivingengine.
Themanufacturingmaterialsofthemetalpartsincontactwiththeliquidcanbe:aluminiumalloy,anticorodalaluminium
alloy,castiron,bronze,stainlesssteelAISI316,aluminiumalloywithRilsancoated.
Thediaphragmandthevalvescanberealisedwiththefollowingmaterials:Neoprene,Hypalon,Viton,Oilresistant,TPVin
conformitywithFDArules.
The Libellula 1/3" contractor version is realised with pump body, suction and delivery ports, reducer support and
aluminiumdiecastingconnectingrod.
TheLibellula1/3"pumpcanbeactivatedbydifferenttypesofengines,which:

Petrol engines:
LombardinitypeKohlerCS6T–CH270
Briggs&Strattontype93432/36A3.5HP
HondatypeGX120orGX160
RobintypeEX13orEX17
KawasakitypeFE120

Diesel engines:
Lombardinitype15LD225
HondatypeGD320
Hatztype1B20
RobintypeDY23D
YanmartypeL48AE
PettertypeAC1

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
6
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
6
Electric motors:
a)closed threephase, selfventilated externally insulated in class F, IP55 protection, unified Standards IEC or
NEMAC.
b)flameproofthreephasecompliantwithDirective2014/34/EC(ATEX).
c)externallyselfventilatedclosedsinglephase.
d)externallyselfventilatedcloseddirectcurrent.
Thepumpenginecouplingismonoblocwithadapterandappropriatepinion.
ThespeedvariatorStoebertypeR37.0000orotherbrandswithsamefeaturescanbeinstalledbetweentheengineandthe
reducer.
The Libellula 1/3" can be installed: on fixed base, on carrying frame, on trolley for electric motor, petrol or diesel with
drivenhandlesorwraparoud.
ThemachineisprovidedwithpermanentPVCprotectionormetalnetwithconnectingrodhandlesystemcovertoprevent
accidents due to operatormoving parts contact. The permanent protection is locked and held in its right position by
fasteningbolts.
The machine is provided with lifting hook suitable for handling the pump coupled with the engine supplied by the
manufacturerandintheinstallationversion(trolleyorframe),envisionedduringordering.
!

6. USE
6.1INTENDEDUSE
Thepumpissuitableforhandlingliquidsormudswithsolidpartsinsuspension.
Thepumphasdryfunctioningpossibilityatindeterminatetime.
TheLibellula1/3"canalsobesuitableforthetransferoffoodliquids;inthiscase,theusermustascertainthat
thematerialsincontactwiththeproductarecomplianttotherelativeDirectives.
Themachineisdesignedandmanufacturedsothatthepartsincontactwiththeproducttobepumpedcanbe
cleaned before each use; all coupling elements are smooth, without roughness or spaces where organic
materialscanbestored;thesurfacesincontactwithfoodproductscanbeeasilycleanedanddisinfected.

6.2NONINTENDEDUSE
Thepumpisnotsuitableforpumpingdangerous,flammableliquidsorthatcangenerateapotentiallyexplosive
atmosphere, except for the ATEX certified version. Should the pump be used for pumping particularly
dangerouschemicalproductsforcontactwithpersonsorthings,itwillbenecessarytocheckwiththesupplier,
thecorrectchoiceofthemetalmaterialsandoftheelastomersofthepumppartsthatcomeintocontactwith
thefluid.Itwill,however,benecessaryfortheinstallertocreatea suitablebasinintheoperationalareafor
containingthefluidthatmightleakdue toaccidentalbreakingofthepumping diaphragmandinstallremove
controls for the machine startup and switchoff and draining pipes of the fluids collection basin to enable
maintenanceoperations.



INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
7
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
7
7. SOUND LEVEL
During functioning, the machine in the aluminium version equipped with 2800 rpm electric motor shows a
measuredacousticpowerlevelLwA=89dBandaguaranteedacousticpowerlevelequalto90dB(A).
Inthecastironversionwithelectricmotor,duringfunctioningitshowsameasuredacousticpowerlevelLwA=77
dBandaguaranteedpowerlevelequalto78dB(A).
WithregardtotheotherversionsoftheLibellula1/3"pumpequippedwithpetrolordieselengine,refertothe
acousticpowerleveloftheinstalledenginesindicatedontheCECertificateofConformity.
Themanufacturingcompanyisattheusersdisposalforthesendingofthecurvesofcumulativedistribution,of
measurement in time and in frequency of the acoustic pressure level of the Libellula 1/3" pump for every
requiredsoundproofingintervention.
8. SAFETY AND ACCIDENT PREVENTION

IMPORTANT!ItiscompulsoryfortheemployertoprovideI.P.D.
(IndividualProtectionDevices)andinformstaff
ontheircorrectuseandmaintenance

IMPORTANT!Theoperatormustalwaysobservetheprescriptionsindicated
bythesignonthemachine


TheI.P.D.theoperatormustuseduringtheMaintenanceandCleaningoperationsare:

Workwear
gloves
 accidentpreventionshoesandsteeltoecap
 earprotectors
9. SAFETY STANDARDS
Donotcarryoutmaintenanceoperationsduringfunctioning.
Do not run the petrol or diesel engine inside a closed environment. The exhaust gases contain carbon
monoxide,anodourlessanddeadlypoison.
Donotnearhandsorfeettothemovingorrotatingparts.
Donothold,pourorusecombustiblesinpresenceofnakedflame,andofdeviceslikestoves,boilersor
appliancesabletogeneratesparks.
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
7
7. SOUND LEVEL
During functioning, the machine in the aluminium version equipped with 2800 rpm electric motor shows a
measuredacousticpowerlevelLwA=89dBandaguaranteedacousticpowerlevelequalto90dB(A).
Inthecastironversionwithelectricmotor,duringfunctioningitshowsameasuredacousticpowerlevelLwA=77
dBandaguaranteedpowerlevelequalto78dB(A).
WithregardtotheotherversionsoftheLibellula1/3"pumpequippedwithpetrolordieselengine,refertothe
acousticpowerleveloftheinstalledenginesindicatedontheCECertificateofConformity.
Themanufacturingcompanyisattheusersdisposalforthesendingofthecurvesofcumulativedistribution,of
measurement in time and in frequency of the acoustic pressure level of the Libellula 1/3" pump for every
requiredsoundproofingintervention.
8. SAFETY AND ACCIDENT PREVENTION

IMPORTANT!ItiscompulsoryfortheemployertoprovideI.P.D.
(IndividualProtectionDevices)andinformstaff
ontheircorrectuseandmaintenance

IMPORTANT!Theoperatormustalwaysobservetheprescriptionsindicated
bythesignonthemachine


TheI.P.D.theoperatormustuseduringtheMaintenanceandCleaningoperationsare:

Workwear
gloves
 accidentpreventionshoesandsteeltoecap
 earprotectors
9. SAFETY STANDARDS
Donotcarryoutmaintenanceoperationsduringfunctioning.
Do not run the petrol or diesel engine inside a closed environment. The exhaust gases contain carbon
monoxide,anodourlessanddeadlypoison.
Donotnearhandsorfeettothemovingorrotatingparts.
Donothold,pourorusecombustiblesinpresenceofnakedflame,andofdeviceslikestoves,boilersor
appliancesabletogeneratesparks.
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
7
7. SOUND LEVEL
During functioning, the machine in the aluminium version equipped with 2800 rpm electric motor shows a
measuredacousticpowerlevelLwA=89dBandaguaranteedacousticpowerlevelequalto90dB(A).
Inthecastironversionwithelectricmotor,duringfunctioningitshowsameasuredacousticpowerlevelLwA=77
dBandaguaranteedpowerlevelequalto78dB(A).
WithregardtotheotherversionsoftheLibellula1/3"pumpequippedwithpetrolordieselengine,refertothe
acousticpowerleveloftheinstalledenginesindicatedontheCECertificateofConformity.
Themanufacturingcompanyisattheusersdisposalforthesendingofthecurvesofcumulativedistribution,of
measurement in time and in frequency of the acoustic pressure level of the Libellula 1/3" pump for every
requiredsoundproofingintervention.
8. SAFETY AND ACCIDENT PREVENTION

IMPORTANT!ItiscompulsoryfortheemployertoprovideI.P.D.
(IndividualProtectionDevices)andinformstaff
ontheircorrectuseandmaintenance

IMPORTANT!Theoperatormustalwaysobservetheprescriptionsindicated
bythesignonthemachine


TheI.P.D.theoperatormustuseduringtheMaintenanceandCleaningoperationsare:

Workwear
gloves
 accidentpreventionshoesandsteeltoecap
 earprotectors
9. SAFETY STANDARDS
Donotcarryoutmaintenanceoperationsduringfunctioning.
Do not run the petrol or diesel engine inside a closed environment. The exhaust gases contain carbon
monoxide,anodourlessanddeadlypoison.
Donotnearhandsorfeettothemovingorrotatingparts.
Donothold,pourorusecombustiblesinpresenceofnakedflame,andofdeviceslikestoves,boilersor
appliancesabletogeneratesparks.

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
8
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
8
Donotrefillfuelinclosedandscarcelyventilatedenvironments.
Do not refuel during functioning. Leave the engine to cool before refuelling. Keep the combustibles in
appropriatecontainers,safetyStandardsapproved.
Donotremovethefueltankplugwhiletheengineisrunning.
Donotruntheengineifyousmellpetrolorthereissomeotherriskofexplosion.

Donotactivatethemotoriffuelleaks.
Donottransporttheenginewithpetrolinthetank.
Donotcheckignitionwiththesparkplugsorcableofthe sparkplugdisconnected:useanappropriate
tester.
Donotruntheenginewiththesparkplugdismantled.
Donothittheflywheelwithsharpormetalobjectsasthiscancausethebreakinganddisconnectionof
metalpartsduringmovement.
Donottouchsilencers,cylindersorcoolingfinswhenhot,ascontactcancauseburns.
Toavoidcertainpartshittingpersonsincaseofmachinefalling,ensurethatduringtheliftingoperations,
nopersonsarewithintheactionrangeofthemachinesforlifting.
Thelifting,transportandplacingoperationsmustbecarriedoutbyqualifiedtechnicalstaffandtrainedin
thespecificinterventionfields.
Beforeeveryhandling,alwaysensuretheliftingmeanwithrelativetools(ropes,hooks,etc...)aresuitable
forliftingtheloadtobehandledandchecktherequiredstabilityofthelatter.

DonotusethePUMPdifferentlytothatenvisionedbythemanufacturingcompanyandthatindicatedinthe
UseandMaintenanceinstructions.
Suspended loads danger It is forbidden to stand under the loads
It is forbidden to remove the ATTENTION
Safety protections Do not open with the engine running
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
8
Donotrefillfuelinclosedandscarcelyventilatedenvironments.
Do not refuel during functioning. Leave the engine to cool before refuelling. Keep the combustibles in
appropriatecontainers,safetyStandardsapproved.
Donotremovethefueltankplugwhiletheengineisrunning.
Donotruntheengineifyousmellpetrolorthereissomeotherriskofexplosion.

Donotactivatethemotoriffuelleaks.
Donottransporttheenginewithpetrolinthetank.
Donotcheckignitionwiththesparkplugsorcableofthe sparkplugdisconnected:useanappropriate
tester.
Donotruntheenginewiththesparkplugdismantled.
Donothittheflywheelwithsharpormetalobjectsasthiscancausethebreakinganddisconnectionof
metalpartsduringmovement.
Donottouchsilencers,cylindersorcoolingfinswhenhot,ascontactcancauseburns.
Toavoidcertainpartshittingpersonsincaseofmachinefalling,ensurethatduringtheliftingoperations,
nopersonsarewithintheactionrangeofthemachinesforlifting.
Thelifting,transportandplacingoperationsmustbecarriedoutbyqualifiedtechnicalstaffandtrainedin
thespecificinterventionfields.
Beforeeveryhandling,alwaysensuretheliftingmeanwithrelativetools(ropes,hooks,etc...)aresuitable
forliftingtheloadtobehandledandchecktherequiredstabilityofthelatter.

DonotusethePUMPdifferentlytothatenvisionedbythemanufacturingcompanyandthatindicatedinthe
UseandMaintenanceinstructions.
Suspended loads danger It is forbidden to stand under the loads
It is forbidden to remove the ATTENTION
Safety protections Do not open with the engine running

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
9
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
9
10. HANDLING AND TRANSPORT
Themachinecanonlybehandledwiththesuctionanddeliverypipingdisconnectedandwiththepowersupply
motorstillordisconnected.
Themachinesinstalledonframecanbehandledwithliftingappliancesthatcanbeconnectedtotheliftinghook
envisionedonthesamemachine,usingsuitablesafetysystems.


Themachinemustbetransportedinhorizontalpositionandinoptimalsafetyconditions.
Lifttheunitusingonlytheliftingpoints.
Beforehandlingthemachine,checkdimensionsandweightsontheplate.
Donotstandwithintheactionrangeduringhandlingofthemachine.
During the startup and maintenance interventions, envision a safe transport of all components using
appropriate harness. Handling must be carried out by specialised staff to avoid damaging the machine and
causingaccidentstostaff.
The lifting points of the various components must only be used to lift the components for which they were
supplied.
Donotstandortransitunderneathandnearbythemachinewhenitisliftedfromtheground.
Toanchorthemachinetothetransportsurface,blockthesameusingropesorchains.
N.B.Noadditionalaccessorycanbeconnectedtothemotorpumporelectricpumpunitduringtheliftingor
thehandling.



11. STORAGE
Incaseofstorage,arrangethemachineinaclosedplace;ifleftintheopen,coveritwithawaterprooflining.
Avoidhumidityaccumulatingaroundthemachine.Donotleavethepumpbodyfullofliquid.Drainitthrough
appropriate drain plug. The liquid may freeze during the winter months and damage the system. When the
liquidisdangerous,takeallnecessaryprecautionsbeforedrainingthetanktopreventdamagesandaccidents.
Periodicallystartthepumpforafewsecondstoavoidscalinginsidethesamepump.

INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3” SERIES - Vers. 1/16
10
INSTRUCTION FOR THE USE AND MAINTENANCE - LIBELLULA 1/3" SERIES –vers. 01/16
10
12. INSTALLATION
With regard to the use of engines coupled with pump, reference is made and the Standards given by the
manufacturersofthesameenginesareexpresslyrecalled,attachedtothisuseandmaintenancemanual.
Install the electric pump or motor pump units provided with metal frame on stable foundations and well
anchoredtotheground.
Theconnectionpipingtothepumpmustbeofflexibletypeorprovidedwithflexiblerubberbolttodampenthe
vibrationsduetothebuttonflowrate.
Itisagoodruletoprevententryoflargesolids(maxdimension50mm),thatmightbreakthediaphragmorthe
connectingrod,bymountingaprotectivefilmatsuction,supplieduponrequest.
Thesuctionanddeliverypipingmusthaveadiameterequalorabovethatofthesuctionanddeliveryportsof
thepump.
Avoidcurves,elbowsorbottlenecksasmuchaspossiblethatmightlimittheinfloworflowrateoftheliquidto
orfromthepump.
Donotassembleshutdownvalves:thepumpisprovidedwithclapetvalvesthatworkascheckvalves.Insome
casesitmaybeusefultoinstallapressurereliefvalve.
Donotassembleflowchokingvalvesonthedelivery;toreducetheflowrate,envisionabypasspipingonthe
delivery,withreturntosuctionbasin,adjustedbyballorshuttervalve.
Ensurealljointsareperfectlyairsealed:checkthethreads,thegasketsoftheadapters,oftheports,andofthe
quickcouplings.
Install the pump as closeas possibleto thefluidtobe pumped,tryingto decrease thelengthof the suction
pipingasmuchaspossible(themaximumsuctionheightisof7metres);inthisway,theprimingtimedecreases
andgreaterflowrateisobtained.
Themaximumheadofthepumpisof15metresofwatercolumn;greaterhydraulicloadsnegativelyinfluence
thefunctioningofthepumpandlimitthelifespanofthediaphragm.Forcontinuoususes,thetotalmanometric
headmustnotexceedthe10metresofwatercolumn.
Thecorrectinstallationofthesuctionanddeliverypipingisassuredbyobservingtheflowdirectionrecalledin
mostversionsusingdirectionalarrowsonthesuctionanddeliverynozzlesor,however,verifyingthatsuctionis
onthenozzlewithplugoraircase.
Ininstallingunitswithendothermicengine,ensuremaximuminclinationoftheenginedoesnotexceedthe35°
intransversalorlongitudinaldirection,inordertoguaranteeacorrectlubricationvalue.


12.1ELECTRICCONNECTIONS
Forversionswithelectricmotor,thepumpmustbeconnectedtoanelectricplantprovidedwithearthsystem
accordingtolocaltechnicalStandardsinforce.
Forthesinglephaseversion,keeptothecurrenttechnicalStandards.
Ensuretheplatevoltagecorrespondstothatofthepowersupplynetwork.
Ensuretheelectricpumpisdisconnectedfromtheelectricpowersupplybeforecarryingoutanyinstallationor
maintenanceoperation.




