Flygt compact mixersRELIABLE VERSATILITY, HIGH EFFICIENCY

Compact mixingfor any requirement

INTRODUCTION

Rising to the mixing challengeAll mixing applications require vary-ing degrees of both small-scale tur-bulence and bulk flow. With a goodbulk flow, the contents of the entiretank are set into motion involving inthe mixing process. The strength ofthe bulk flow is, in turn, dependenton the total amount of installed thrustand layout.

Unparalleled expertise,broad mixing solutionsFlygt pioneered the use of thrust asthe main performance parameter formixing. And every day, we put morethan 50 years of R&D expertise andpractical experience to work to deter-mine the right technology, mixer sizeand layout for your requirements.

Our comprehensive portfolio ofmixers and agitators cover virtuallyevery requirement. Hundreds of thou-sands of Flygt mixers and agitatorsare in service worldwide, deliveringefficient mixing performance.

Flygt compact mixersEngineered for flexibility, versatilityand lean installation, these space-sav-ing mixers offer highly efficient solu-tions for any tank shape and size.

Our compact mixers easily blendhighly contaminated fluids high-den-sity or high-viscosity liquids, and liq-uids with fibrous material. Few com-ponents, low capital investment andstraightforward service routines makeFlygt compact mixers the economi-cal choice for a broad range of mixingapplications, like:

n Activated sludge treatment suchas conventional ASP or sequencingbatch reactor

n Sludge holding tanksn Equalization tanksn Pump station mixingn Grit chamber mixingn Chlorination basinsn Paper pulp chestsn Quenching tanks

Flygt’s wide array of reli-able, trouble-free mixingequipment includes:

n Flygt low-speedmixers

n Flygt compact mixers

n Flygt top-entryagitators

n Flygt jet mixers

n Flygt hydroejectors

Our comprehensivemixing portfolio

Advantages of Flygtcompact mixers

n High efficiency andreliability

n Space-savinginstallation

n Easy handling of highlyfibrous materials

n Few, easy-to-servicecomponents

n Durable design

n Low total cost ofownership

2

Class H stator motorfor long service life.

Active Seal™for zero leakage.

Designed for high reliability

For decades, we have been at the cutting edge ofmixer research and development. Flygt compactmixer components contribute to reliable opera-tion, reduced energy costs and efficient mixing.

Compact, robust direct-drive motor

Active Seal™ for zero leakageThe Flygt Plug-in seal features the Active Seal™system for zero leakage into the stator housing.Laser-cut grooves on the inner sealfaces, act as a micro-pump to forceany liquid present on the drive-unit back to the buffer fluid side.The seal housing with barrierfluid helps lubricate and coolthe seal, ensuring efficientheat transfer even when run-ning dry.

Optional jet ring for increasedmixing efficiency.

DESIGN

90

60

65

70

75

80

85

Shaft power kW

0 2 4 531 6 7

Motoreffic

ienc

y%

4650 LSPM

4650

and up to 20% on energy compared to conventionalinduction motors.

Oil housingThe large oil volume ensures smooth operation andlong service intervals between refills. To make ser-vice easy, the oil plugs allow refill without removingthe propeller.

Optional LSPM motor foradditional energy savings.

Line-start permanent magnet motorThe optional line-start permanent magnet (LSPM)motor for the Flygt 4650 compact mixer combines

Our squirrel-cage inductionmotor is manufactured at ourpremises for durability and de-pendability. Stator windings aretrickle impregnated in resin andrated at Class H 180°C (355°F) forexcellent resistance to overheat-ing and long service life.

the efficiency of a synchronouspermanent magnet motor withthe direct on-line starting of aninduction motor. This saves oncurrent-related costs, such asfor cables and power supplies,

Non-clogging, fiber-handling hydraulicsFlygt compact mixers feature an ef-ficient hydraulic design with few,easy-to-service components,which contributes to reli-able, trouble-free operation.Engineered to generate maxi-mum thrust with minimal useof energy, the propeller bladeswith their backswept designallow highly fibrous material to passthrough. Wide-hub design deflects fibrous material.

Jet ring for higherefficiencyWith the optionaljet ring, it is pos-sible to achievean increasein mixer ef-ficiency byup to 15% inwater – andeven higher inviscous media,while furtherreducing energyconsumption.

Non-clogginghydraulics

3

DESIGN

Dependability starts withattention to detail

Jet ringOptional jet ringincreases hydraulicefficiency therebyreducing powerconsumption.

Oil housingLarge barrier fluidvolume lubricatesand cools the seal andthereby prolongs ser-vice life.

MaterialsAll external parts manu-factured for excellentcorrosion-resistance.Major parts in stainlesssteel.

Cable entryCompressible bush-ing and strain reliefon the cable preventleakage into the motor,providing a reliableinstallation.

Plug-in seal with theActive Seal™ systemOffers increasedsealing reliability andzero leakage into themotor, thereby reduc-ing the risk of bearingand stator failure.

PropellerAvailable with differ-ent blade angles, thindouble-curved propel-ler optimizes mixingefficiency. Wide-hubdesign deflects fibrousmaterial.

BearingsSecurely supports theshaft by means of onemain bearing at the pro-peller end and a doublebearing at the rear end.

MonitoringThermal sensors em-bedded in the statorwindings prevent over-heating. Leakage sen-sors are available asoptions.

1

6

7 8 9

2 3 4

58

9

3 4

MotorHigh-performance,squirrel-cage inductionClass H motor providesthermal overload pro-tection and extra longservice life.

5

2

7

61

4

Low-cost installation

Flygt installation equipment is rigid enough towithstand the weight and reaction forces exertedby the mixer throughout its operating life. It is alsorobust and easy to work with.

Guide bar systems for any tankTo help withstand fatigue from strongly fluctuatingforces within the tank, Flygt compact mixers are usu-ally installed along rigid guide bars at appropriatedepths for optimal mixing efficiency. Used togeth-er with our lifting equipment, guide bar systemsenable easy access for inspection and service.

Safe, convenient lifting equipmentRaising and lowering Flygt compact mixers with ourlifting equipment is as easy and convenient as it issafe. The CE-approved lifting davit is mounted in aholder at its lower end, which enables easy turningof the davit. To reduce investment cost, one davitcan be used for several mixers.

Our compact mixer portfolio includes eight dif-ferent sizes of direct drive mixers. Using stan-dardized materials and components, the modulardesign, which includes a series of blade angles foreach model, provides a comprehensive range ofmixer performance.

Methods of installation

Facts and figures

A broad rangeof compact mixers

TECHNICAL DATA

Flygt Mixer Model

46304620 4640 4650 46804660 4670

Thrust[N

]

100

200

500

1,000

2,000

5,000

10,000

461050

Guide barmountingThe mixer is low-ered or raisedalong a guide barlocated on thetank wall.

Floor mountingAffixes to a standon the bottom;often used in shal-low tanks andponds.

CantilevermountingMounts on a can-tilever bar, whichis fixed to thetank edge.

FlangemountingSecurely affixesto an adapterflange, which ismounted in thetank inspectionhole.

Model 4610 4620 4630 4640 4650 4660 4670 4680 4650 LSPM

Power, kW· 50 Hz· 60 Hz (hp)

0.90.9 (1.2)

1.51.7 (2.3)

1.51.9 (2.5)

2.53.0 (4.0)

3.74.5 (6.0)

5.56.2 (8.3)

7.58.2 (11.0)

1011.2 (15.0)

1314.9 (20.0)

18.522.4 (30.0)

2530.0 (40.0)

5.06.0 (8.0)

7.08.2 (11.0)

Thrust range· 50 Hz, N· 60 Hz, N

100–200100

100–300100–300

200–500300–500

200–800300–800

800–13001200

800–19001200–1500

800–22001200–2300

800–28001200–3100

1400–38002000–3800

1400–53002000–5500

1400–64002000–7000

900–14001200–1600

900–20001200–2400

Propellerdiam,m (in) 0.210 (8.3) 0.210 (8.3) 0.368 (14.5) 0.368 (14.5) 0.580 (22.8) 0.580 (22.8) 0.580 (22.8) 0.580 (22.8) 0.766 (31.6) 0.766 (31.6) 0.766 (31.6) 0.580 (22.8) 0.580 (22.8)

5

TECHNICAL DATA

Options

Vortex protection shield Cast iron propeller Extended jet ring

SUBCAB®

Heavy-duty submersible rubber cable.

SUBCAB® ScreenedHeavy-duty submersible rubber cable for use withVFD and to limit electromagnetic interference.

Special cablesWithstand high temperatures, high voltage andchemical agitation.

Leakage sensorsAutomatically detect, together with external moni-toring equipment, any leakage in stator and oilhousings.

Extended jet ringFor improved motor cooling in viscous liquids.

Flygt MiniCAS supervisionProvides quick and easy equipment protection bymonitoring thermal overload switches and leakagedetectors.

Explosion-proof versionsFor use in potentially explosive or flammableenvironments.

High chromium cast iron propellerWithstands severe abrasion resulting from mixinghard mineral slurries.

Silicone carbide (RSiC) sealProvides excellent abrasion resistance and superiorresistance against acid and chloride liquids.

Vortex protection shieldPrevents air vortices from being drawn from thesurface into the mixer propeller to maintain opti-mal performance. For use in applications where theliquid depth is very shallow or when the mixer mustbe placed close to the surface.

Warm liquid versionsFor use in high temperature applications (up to90°C).

Zinc anode kitsProvides extra corrosion-resistance for seawaterapplications.

Stator leakagesensor

Flygt MiniCASsupervision unit

6

SUPPORT & SERVICE

A perfect blendof support and service

A deep understanding of fluid han-dling and vast experience in mixingtechnologies makes Flygt a trustwor-thy and reliable partner for all yourprocess requirements.

Systems engineering expertiseDimensioning and layout are criticalfactors in maximizing performance.Using our expertise and intelligenttools, we analyze your requirementsto identify the right mixer or agitationsystem to optimize your processes.

Support along the wayOur recommendations result from theuse of specially developed and vali-dated Computational Fluid Dynamicssoftware programs, based on careful-ly selected, relevant models. Our owntesting facilities as well as field testingand measurement of actual perfor-mance onsite provide Flygt engineerswith keen insight into what works.Using this knowledge and expertisewe help you maintain your installationin top operating condition.

Global service networkShould any problem occur with yourFlygt mixers and agitators, profes-sional assistance and original spareparts are always within easy reachthrough our extensive service net-work in 140 countries.

Genuine spare parts arevital to ensure long andtrouble-free operation.We guarantee the avail-ability of spare parts for10 years after we stopproduction of a model.

Enjoy the benefits of apremium brand

Boost efficiency withmonitoring and control

We supply everythingfrom controllers, sensorsand start equipmentto SCADA software forcomplete fluid handlingsupervision.

7

1) The tissue in plants that brings water upward from the roots2) A leading global water technology company

We’re 12,000 people unified in a common purpose: creating innovative solutionsto meet our world’s water needs. Developing new technologies that will improvethe way water is used, conserved, and re-used in the future is central to our work.We move, treat, analyze, and return water to the environment, and we help peopleuse water efficiently, in their homes, buildings, factories and farms. In more than150 countries, we have strong, long-standing relationships with customers whoknow us for our powerful combination of leading product brands and applicationsexpertise, backed by a legacy of innovation.

For more information on how Xylem can help you, go to xyleminc.com.

Flygt is a brand of Xylem. For the latestversion of this document and moreinformation about Flygt products visitwww.flygt.com

1103

.Flygtc

ompac

tmixers.1

.Master.1

.201

1101

9