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.