Flygt N-pump seriesSelF-cleaNiNg pumpS with SuStaiNed high eFFicieNcy
Broad range capacity
The N-pump advantage
•Patentedtechnology
•Innovativedesign
•Sustainedhighefficiency
•Selfcleaningability
•Modulardesign
•Reliable
•Fewerunplannedservicecalls
•Ratingsfrom1.3kWto310kW
•Flowupto1,000l/s
•Headsupto100m
•Submersibleanddryinstallations
•EveryFlygtpumpisperformancetestedinthefactory
2
Flygt N-pumps take on the toughest applications and get the job done. Every component is designed and manufactured to deliver sustained high efficiency. Thanks to patent-ed N-technology with its innova-tive self-cleaning impeller, Flygt N-pumps deliver the highest total efficiency. It lowers your energy bill and reduces unplanned maintenance costs. That adds up to total peace of mind – and big savings over the long term.
Ourvastfluidhandlingknowledgeanddedicationtoresearchandde-velopmentleadstotechnologicalad-vancesandcontinuousimprovement.
That’swhyourFlygtN-pumpsareatworkinmorethanahundredthou-sandinstallationsworldwide.Theyhaveproven,byfar,tobethebestandmostreliablechoiceforbothdryandsubmersibleinstallations.
Sustainedhighefficiencyispriceless
INTROducTION
Robust and reliableEveryFlygtN-pumpistestedinthefactorytoensurehighperformanceandpremiumquality.Flygtproductsdeliveroutstanding,cost-effectiveperformancethathasbeenproveninapplicationssuchas:
•Wastewater•Rawwater•coolingwater•Sludge•Stormwater•Industrialeffluent
timetime
A) Conventional pump B) Conventional pump running intermittently
C) Flygt N-pump
time
Energy consumptionHydraulic efficiency
timetime
A) Conventional pump B) Conventional pump running intermittently
C) Flygt N-pump
time
Energy consumptionHydraulic efficiency
timetime
A) Conventional pump B) Conventional pump running intermittently
C) Flygt N-pump
time
Energy consumptionHydraulic efficiency
3
Self-cleaningN-pumpsavesmoney
Sustained high efficiencyWhensolidobjectsuchasstringyfibrousmaterialandmoderntrash,entertheinletofaconventionalpump,theytendtogetcaughtontheleadingedgesoftheim-pellervanes.Thisbuild-upreducedtheimpeller’sef-ficiency,resultinginincreasedpowerconsumption(Fig.A).Thisincreasedrateofpowerconsumptiongeneratesanincreaseinenergycharges.
A.conventionalwaste-waterpump
The self-cleaning concept
AllFlygtN-pumpshavethesameself-cleaningperformanceregardlessofdutypoint.
Stage 1.Mostsolidobjectsenteringthepumpwillpassthroughtheimpellerbetweentheimpellervanes.Ifanobjectgetscaughtontheleadingedgeofoneofthevanes,itwillslidealongthebacksweptshapetowardstheperimeteroftheinlet.
Stage 2.Thesolidobjectwillslidealongthetipoftheimpellervaneinsidethereliefgroove.Theguidepinintheinsertringwillpushalltypesofsolidsawayfromthecenteroftheimpel-ler,alongtheleadingedgeandoutthroughthereliefgroove.
Assolidscontinuetobuild-upinsidetheimpeller,motorthermalprotectioncantripcausingthepumptostop.Thisleadstocostlyunplannedservicecalls.
Ifaconventionalwastewaterpumprunsintermittently,thesolidsbuild-upwillberemovedbybackflushingwhenthepumpisshutoffattheendoftheoperatingcycle.Whennextcyclebegins,efficiencyreturnstoitsinitialvaluesincetheimpellerisfreefromsolidobjects(FigB).
ThehighefficiencyoftheFlygtN-pumpissustainedovertimeduetoitsself-cleaningability,keepingenergycoststoaminimum(Fig.c).
B.conventionalpumprunningintermittently
c.FlygtN-pump
Hydraulicefficiency
Sustainedhighefficiency
Energyconsumption
dESIgN
Insertring
guidepin
Reliefgroove
Pumphousing
Impeller
Top performance with a broad capacity range
105 20 50 100 200 500 1000
[Ql/s]
[H/m]
2
5
10
20
50
100
200
3085, 3102 and 3127
3153, 3171, 3202, 3301 and 3315
3231, 3306, 3312, 3356 and 3400
Hard-Iron™ (60 HRC) for the toughest wastewater challengesHard-Iron™,
60HRc
Steel,hardened,60HRc
castiron,hardened,47HRc
Stainlesssteel,AISI316,190HB
castiron,190HB
Relativelifetime
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
.10
4
Broadcapacityrangetosuityourapplication
dESIgN
Flexible and modular designFlygtN-technologyenablesyoutotailorthehy-draulicstomeettherequirementsofvirtuallyanyapplication.choosethehardenedcastironversionfortypicalwastewaterapplicationsandthechop-perringversionforcuttinglongfibresorsolids.TheHard-Iron™versionshouldbeusedinabrasiveap-plicationsandwatersthatcoldcauseerosioncorro-sionduetohighoxygencontent.
Whateveryouchoose,youneversacrificepumpefficiency–andyoucaneasilyswitchthemoduleiftheoperatingconditionschange.
castironimpellerwithhardenededgesandinsertringfortypicalpumpingappli-cations.
Extradurableoptionforabra-siveandero-sioncorrosionapplications.
Hard-Iron™(60HRc)castiron
chopperringforcuttinglongfibersorsolids.
AcceleratedweartestsprovethatHard-Iron™hydrauliccom-ponentskeeponworkingefficientlywithminimalwearafterpumpingwaterwithaveryhighconcentrationofcoarsesand(2,400tons).
FlygtN-pumpswithHard-Iron™componentscontinuetodeliv-ersustainedhighefficiencywithoutcloggingorerosioncorro-sion,prolonginglifetimeby200percentcomparedtostandardhardenedcastironhydraulics.
Spin-out™ seal protection for pumps with cavities in the seal chamber
5
designedandengineeredforlongerlife
XylemspeciallydesignsandmanufacturesFlygtN-pumpcomponents,suchasthemotor,sealsandshaft,tooptimizeoperationandprolongpumpser-vicelife.
MotorTheclassHsquirrel-cageinductionmotordeliversoutstandingperformanceandsuperiorheattrans-ferinsubmersibleanddryinstallations.Heatlossesareconcentratedaroundtheshrink-fittedstator,whichiscooledbymeansofthesurroundingwater.ThemotorhasaNEMAclassBmaximumoperat-ingtemperatureriseof80°c(176°F)toensurelongservicelife.Preparedforvariablespeedoperation,allmotorsarecapableoffullyutilizingtheavailablepower.
Long-life sealsdurabletungstencarbidesealsofferexception-almechanicalstrengthaswellassuperiorslidingpropertiesevenwhenrunningdry.Theselow-fric-tionsealswithstandthousandsofhoursofhigh-pressureoperationunderextremeconditionswithoutcracking,seizinguporshowingsignsofunacceptablewear.
Low shaft deflectionTominimizevibration,promotequietoperationandprolongsealandbearinglife,allFlygtN-pumpsfeatureashortshaftoverhangtoreduceshaftdeflection.
ThepatentedSpin-out™designexpelsabrasiveparticlesfromthesealchamber,providingprotec-tionagainstwearoftheouterseal.Asanintegralpartofthesealchamber,Spin-out™isassimpleasitiseffective.
Model 3085 3102 3127Rating,kW 1.3–2.4 3.1–4.2 4.7–7.4
discharge,mm(in) 80(3") 80(3") 80(3")100(4") 100(4")150(6") 150(6")
3085, 3102 and 3127
0 105 20 50 100
[Ql/s]
[H/m]
0
2
5
10
20
50
3085
3102
3127
6
Lowcapacitypumps
ThisseriesofFlygtN-pumpsincludesthreemodelsthathandlecapacitiesupto100l/s.LikeallFlygtN-pumps,thesecontributetoreducingthetotallifecyclecostsofyourinstallation.
Asemi-permanentinstallationofapumpwithinaverticalsteelorconcretecolumn.
Forsemi-permanentwetwellinstallations.Thepumpisinstalledwithtwinguidebarsonadischargeconnection.
Avertically-mounted,permanentdrywellorin-lineinstallationwithflangeconnectionsforsuctionanddischargepipework.
Ahorizontally-mounted,permanentdrywellorin-lineinstallationwithflangeconnectionsforsuctionanddischargepipework.
Asemi-permanentfreestandinginstallation.Transportableversionwithpipeorhoseconnection.
Methods of installationNP NS NT NZ NL
Performance, 50 Hz
Power ratings and sizes
7
SENSORSThermalsensorsembeddedinthestatorwindingspreventover-heating.Optionalleakagesensorsinthestatorandoilhousingsarealsoavailable.
cOMPLIANcEEachpumpistestedandapprovedinac-cordancewithnationalandinternationalstandards,includingIEc34-1andcSA.Pumpsareavailableinexplosion-proofversionsforuseinhazardousenviron-ments,andareapprovedbytheFactoryMutual,EuropeanStandardandIEc.
LONg-LIFEBEARINgSdurablebearingsprovideamini-mumservicelifeof50,000hours.
cABLEENTRyWater-resistantcableentrypro-videsbothsealingandstrainrelieffunctionstoensureasafeinstallation.
BETTERHEATTRANSFEROurspeciallydesignedandmanufacturedmotorprovidesenhancedcoolingbecauseheatlossesareconcentratedaroundthestator.Trickleimpregnatedinresin(classHinsulation),thestatorwindingsareratedat180°c(355°F)andenableupto30startsperhour.
ENduRINgSEALSThegriploc™systemcon-sistsoftwosetsofmechani-calshaftsealsthatoperateindependentlytoprovidedoublesecurityagainstleakage.
Griploc™ seal Adaptive N-impellerWitharobustdesign,griploc™sealsofferconsis-tentperformanceandtrouble-freeoperationinchallengingenvironments.Solidsealringsmini-mizeleakageandthepatentedgriplockspring,
whichistightenedaroundtheshaft,providesaxialfixationandtorquetrans-mission.Inaddition,thegriploc™designfacili-tatesquickandcorrectas-semblyanddisassembly.
TheFlygtN3085featuresanadaptiveself-cleaningN-impellerthatcanmoveaxiallytoenableeasypas-sageoflargesolidsthroughthepump.
Methods of installation
Model 3153 3171 3202 3301 3315Rating,kW 7.5–15 15–22 22–47 37–70 55–105discharge,mm(in) 80(3") 100(4") 100(4") 150(6") 150(6")
100(4") 150(6") 150(6") 250(10") 250(10")150(6") 250(10") 200(8") 300(12") 300(12")200(8") 300(12") 350(14") 350(14")250(10")
3153, 3171, 3202, 3301 and 3315
0 10 20 50 100 200 500
[Ql/s]
[H/m]
0
2
5
10
20
50
100
3153 3171
3202
3301
3315
8
Asemi-permanentfreestandinginstallation.Transportableversionwithpipeorhoseconnection.
Forsemi-permanentwetwellinstallations.Thepumpisinstalledwithtwinguidebarsonadischargeconnection.
Avertically-mounted,per-manentdrywellorin-lineinstallationwithflangecon-nectionsforsuctionanddis-chargepipework.
Fordemandingpumpingduties,fivemodelshandlefluidtransportforcapacitiesupto500l/s.Highlyefficient,theseheavy-dutymodelsprovideclog-freeperformanceinordertoachievethebestover-alllifecyclecost.
Mediumcapacitypumps
Ahorizontally-mounted,permanentdrywellorin-lineinstallationwithflangecon-nectionsforsuctionanddis-chargepipework.
NP NS NT NZ
Power ratings and sizes
Performance, 50 Hz
9
INSPEcTIONcHAMBERToincreaseoperationalreliability,aninspectionchamberbetweenthesealunitandthebearingsenablesrapidspotchecksandmaintenance.Inthecaseofasealfailure,abuilt-insensorprovidesanearlywarningofanyfluidbuild-up,thusreducingtheriskofexpensiverepairwork.
EFFIcIENTcOOLINgThesepumpsarecooledeitherbythesurroundingliquidor,inmoredemandingapplications,withaninternalclosed-loopcoolingsystem.
LONg-LIFEBEARINgSdurablebearingsprovideamini-mumservicelifeof50,000hours.
cABLEENTRyWater-resistantcableentrypro-videsbothsealingandstrainrelieffunctionstoensureasafeinstallation.
ENduRINgSEALSTheFlygtPlug-in™sealwiththeActiveSeal™systemoffersincreasedsealingreliabilityandzeroleakageintothemotor,therebyre-ducingtheriskofbearingandstatorfailure.
SENSORSThermalsensorsembeddedinthestatorwindingspreventover-heating,andaleakagesensorintheinspectionchamberminimizestheriskforbearingandstatorfailure.
cOMPLIANcEEachpumpistestedandap-provedinaccordancewithnationalandinternationalstandards,includingIEc34-1andcSA.Pumpsareavailableinexplosion-proofversionsforuseinhazard-ousenvironments,andareapprovedbytheFactoryMutual,EuropeanStandardandIEc.
BETTERHEATTRANSFEROurspeciallydesignedandmanufacturedmotorprovidesenhancedcoolingbecauseheatlossesareconcentratedaroundthestator.Trickleimpregnatedinresin(classHinsulation),thestatorwindingsareratedat180°c(355°F)andenableupto30startsperhour.
Flygt Plug-in seal with Active Seal system
TheFlygtPlug-in™sealisasealunitthateliminatestherisksassociatedwithincorrectinstallationandcarelesshandling.ItcomprisestheActiveSeal™systeminoneeasy-to-handleunit.
TheActiveSeal™systemisapatentedzero-leakagedouble-sealsystemthatactivelypreventsliquidfromenter-ingthemotorcavity,therebyreducingtheriskforbearingandstatorfailure.Itcomprisesauniqueinnersealthatactsasamicro-pumpandanoutersealthatpreventsleakageofpumpedmediaintothebufferchamber.
Laser-cutgroovesontheinnersealcreateahydrodynamicpumpingeffectthatpreventsanyleakagefromenter-ingthemotor.
Thistranslatesintoenhancedseal-ingreliability,reduceddowntimeandfewerunscheduledmaintenancechecks.Inaddition,regularservicein-spectionscanbeprolongedinmanyapplications.
Innersealwithlaser-cutspiralgrooves.
™
™
Model 3231 3306 3312 3356 3400Rating,kW 70–215 58–100 55–250 45–140 40–310
discharge,mm(in) 200(8") 300(12") 300(12") 350(14") 400(16")
0 50 100 200 500 1000
[Ql/s]
[H/m]
0
5
10
20
50
100
3231
3312
3312
3356
33063400
10
Largecapacitypumps
Asemi-permanentfreestandinginstallation.Transportableversionwithpipeorhoseconnection.
Forsemi-permanentwetwellinstallations.Thepumpisinstalledwithtwinguidebarsonadischargeconnection.
Avertically-mounted,per-manentdrywellorin-lineinstallationwithflangecon-nectionsforsuctionanddis-chargepipework.
Ahorizontally-mounted,permanentdrywellorin-lineinstallationwithflangecon-nectionsforsuctionanddis-chargepipework.
Whenhighercapacityisrequired,theFlygtN-pumpserieshasfivepumpstodothejob.Thesemodelsdeliverunprecedentedpumpingpower–reliablyandefficiently.
Methods of installationNP NS NT NZ
Performance, 50 Hz
Power ratings and sizes
3231, 3306, 3312, 3356 and 3400
11
cOMPLIANcEEachpumpistestedandapprovedinaccordancewithnationalandin-ternationalstandards,includingIEc34-1andcSA.Pumpsareavailableinexplosion-proofversionsforuseinhazardousenvironments,andareapprovedbytheFactoryMutual,EuropeanStandardandIEc.
LONg-LIFEBEARINgSdurablebearingsprovideamini-mumservicelifeof100,000hours.
cABLEENTRyWater-resistantcableentrypro-videsbothsealingandstrainrelieffunctionsforasafeinstallation.
ENduRINgSEALSTwosetsofmechanicalshaftsealsworkindependentlyfordoublesecurity.TheActiveSeal™systemoffersincreasedsealingreliabilityandzeroleakageintothemotor,therebyreducingtheriskofbear-ingandstatorfailure.
SENSORSThermalsensorsinthestatorwind-ingspreventoverheating,andananaloguetemperaturesensormonitorsthelowerbearing.Thestatorhousingandthejunctionboxareequippedwithleakagesensors.Thesensorsdecreasetheriskofbearingandstatorfailure.
BETTERHEATTRANSFEROurspeciallydesignedandmanu-facturedmotorprovidesenhancedcoolingbecauseheatlossesarecon-centratedaroundthestator.Trickleim-pregnatedinresin(classHinsulation),thestatorwindingsareratedat180°c(355°F)andenableupto15startsperhour.
Zero leakage into the motor cavity
TheActiveSeal™systemisapatentedzero-leakagedouble-sealsystemthatactivelypreventsliquidfromenter-ingthemotorcavity,therebyreducingtheriskforbearingandstatorfailure.Itcomprisesauniqueinnersealthatactsasamicro-pumpandanoutersealthatpreventsleakageofpumpedmediaintothebufferchamber.
Laser-cutgroovesontheinnersealcreateahydrodynamicpumpingeffectthatpreventsanyleakagetoenterthemotor.
Thistranslatesintoenhancedseal-ingreliability,reduceddowntimeandfewerunscheduledmaintenancechecks.Inaddition,regularserviceinspectionscanbeprolongedinmanyapplications.
Monitoring and control:Empower your business
12
completesolutionsforyourneeds
TEcHNIcALdATA
Ready-to-install prefabricated pump stationsFlygtN-pumpscanbedeliveredreadytoinstallinstandard,prefabricatedpumpstationswithevery-thingyouneed.Ourprefabricatedpumpstationsfeaturethemostreliableandcost-effectivepump-ingsolutions.Oursolutionsarepre-assembledwith
yourconfigurationofvalves,dischargepipe,andinletandoutletconnections.Installationandstart-upiseasyandrequiresminimaltime.
Flygt MiniCASisasupervisionrelayforstatortemperatureandleakagesensorsdesignedforlowandmediumcapacityFlygtN-pumps.
Flygt MAS 711isaprotectivemonitoringsystemformediumandlargecapacityFlygtN-pumps.
FlygtMinicAS FlygtMAS711
Flygt N-pumps: Submersible and dry installations
13
Engineered solutionsFlygtN-pumpscanbeconfiguredtoyourspecificrequirements.Ourengineersworkcloselywithyou,fromdesignandsystemanalysistoselectionofproductandinstallationequipment.Thisenablesustodeliverreliableandcost-effectivepumpingsolutions.
FlygtN-pumpsareanexcellentchoiceforhandlingsolidsindry-pitinstallations.Originallydesignedforsubmersiblecondi-tions,ourpumpseliminatetheriskofdamagetothemotorduetostationflooding.Submersibleordry-installedFlygtN-pumpsdeliversuperiorclog-freeoperationwithminimalmaintenanceandsubstantialenergysavings.
Perfectcompliance.AllFlygtmonitoringandcontrolequipmentintegrateseasilyintoanyscadacontrolsystem.
Options tablecustomizeyourFlygtN-pumpwithoptionalequipment.
Flygt N-pump model 3085 3102 3127 3153 3171 3202 3301 3315 3231 3306 3312 3356 3400
Option/ProductHydraulicguidepin
Hard-Iron™
chopper
AdaptiveNSeal systemgriploc™seal
Plug-in™seal
ActiveSeal™
Spin-out™
SealflushCooling system1.Nocooling
2.Internal
3.Integrated
4.ExternalInstallationNP
NS
NT
NZ
NLAccessories
FlushvalvePump monitorPrepared for
– MinicAS
–MAS
=Standard
=Optional
=Standardbutalsooptionaldependingonmodel
=Standardornotavailabledependingonmodel
=Optionalornotavailabledependingonmodel
Flygt N-pump
Purchase cost
Energy cost
Service cost
Unplanned maintenancecost
Life cycle costs
Conventional pump2 service calls/year
Conventional pump12 service calls/year
14
TEcHNIcALdATA
Thepowertoadapt
Self cleaning saves money
Schematicoverviewofcalculationsmadeona30kWpump.
Wesupplyhardwareandsoftwareforcom-pleteprocesssystems–fromindividualpumpdrives,starters,sen-sorsandcontrollerstosystemsoftwareandscalablescadasystems.
Whendowntimeisn’tanoption,relyonourglobalservicenetworktodelivergenuineFlygtsparepartstoyou–quicklyandefficiently.AllFlygtsparepartsarebackedbyasolid15-yearavailabilityguar-antee.Largecapacitypumpseven20-year.
Extensive monitoring and control
Genuine Flygt spare parts and warranty
15
Supportingyourbusiness,everystepoftheway
SuPPORT&SERvIcE
Extensive engineering know-howXylemhasextensiveknowledgeoffluiddynamicsandvastpracticalexperienceindesigning,operatingandmaintainingefficientwastewatertransportsystems.Weprovideabroadrangeofengi-neeringservices,including:
•Systemanalysisandcalculations•Sumpdesign•Waterhammercalculations•Pumpstartanalysis•Transientanalysis•computationalFluiddynamics(cFd)•Scalemodeltesting
Inshort,wecanassistyouwithevery-thingyouneedforoptimalperfor-manceandeconomical,energy-effi-cientoperation.
Empower your systemWithFlygtmonitoringandcontrolproducts,youcancontrolandopti-mizetheperformanceofeverycom-ponentofyoursystem.Thishelpsreducestressonpumps,valvesandmains,enablereliable,efficientoper-ationandprolongservicelifetime.
Support for your Flygt pumpsOurglobalnetworkoflocalservicecentersandservicepartners,pro-videintegratedservicestosupportsafe,efficientandreliableoperation.Toensuretrouble-freeoperationandminimaldowntime,countonusforquick,professionalresponseandqualitymaintenanceservices,usinggenuineFlygtspareparts.
FlygtisabrandofXylem.ForthelatestversionofthisdocumentandmoreinformationaboutFlygtproductsvisitwww.flygt.com
896876.FlygtN-pum
pseries.1.Master.1.20100701
1)Thetissueinplantsthatbringswaterupwardfromtheroots2)AleadingglobalwatertechnologycompanyWe’re12,000peopleunifiedinacommonpurpose:creatinginnovativesolutionstomeetourworld’swaterneeds.developingnewtechnologiesthatwillimprovethewaywaterisused,conserved,andre-usedinthefutureiscentraltoourwork.Wemove,treat,analyze,andreturnwatertotheenvironment,andwehelppeopleusewaterefficiently,intheirhomes,buildings,factoriesandfarms.Inmorethan150countries,wehavestrong,long-standingrelationshipswithcustomerswhoknowusforourpowerfulcombinationofleadingproductbrandsandapplicationsexpertise,backedbyalegacyofinnovation.FormoreinformationonhowXylemcanhelpyou,gotoxyleminc.com.
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