GRUNDFOS HORIZONTAL SPLITCASE PUMPSThe Reliable & efficienT WoRkhoRse

GRUnDfos HS PUMPS

IntroductIon The Grundfos HS horizontal splitcase pump is an unstop-pable workhorse. The HS delivers high efficiency perform-ance and low life-cycle costs. The highly reliable hydraulic design combined with the service-friendly layout of the splitcase housing assures maximum benefits for the user. All HS pumps are tested to ensure the performance require-ments are achieved prior to delivery. The HS is a well-built, reliable splitcase pump proudly offered by Grundfos – the splitcase pump market leaders!

Technical DataFlow, Q: 10 to 2500m3/hrHead, H: 5 to 148mMotor, range: 1.5 – 600kWMotor, cycles: 50 Hzoperating Pressure: 16 bar, max.Liquid temperature: up to 100°cdischarge Sizes: 50 – 350mmImpeller Sizes: 242 – 630mm

Applicationsthe Grundfos HS pumps are used in these main fields of application:

Commercial systems• Air-conditioningandchilledwatersystem• Watercondensingsystemsandcoolingtowers• Districtheatingplantsandheatingsystems

Industrial systems• Processcoolingandchilledwatersystems• Industrialheatingsystems• Washdownandcleaningsystems

Water distribution• Publicwaterworks• Non-potablewatersystems

Irrigation and agriculture• Fieldirrigation(flooding)• Sprinklerirrigation

PuMP dEScrIPtIon• Thepumpsarenon-self-priming,centrifugalvolute pumps with radial suction and radial discharge ports and horizontal shaft.

• SuctionanddischargeflangesarePN16accordingto EN1092-2(DIN2501).

• Thepumpislong-coupledwithatotallyenclosedfan- cooled standard motor with main dimensions to IEc and dIn standards and mounting designation B3 (IM1001).

• Themechanicalshaftsealhasdimensionsaccording to En 12756.

• Therotatingassemblyisdynamicallybalanced according to ISo 1940 class G6.3.

• Impellersaredoublesuctionprovidinglongoperating, corrosion free life. Impellers are constructed in ASTMB584bronzeandarehydraulicallybalanced.

• GrundfosHSpumpsareavailableinthreedifferent variants:1. Pump with motor and base frame.2. Bare shaft pump with base frame.3. Bare shaft pump; ie pump without motor and without base frame.

• Thesplit-caseconstructionenablesremovaland dismantling of the internal pump parts, e.g. bearings, wear rings, impeller and shaft seal, without disturbing the motor and pipework.

• Replaceablecasewearringsprotectthepumpcasing while reducing maintenance costs and maintaining high operating efficiencies.

• Pumpandmotoraremountedonacommonbase frameintheformofawelded,steelC-channelprofile.

• Bronzeshaftsleevesprotecttheshaftandhelpwith fixation of the impeller.

SELLINGFEATURES Pump casing• Compensateddoublevolutedesignvirtuallyeliminates radial forces caused by a hydraulic imbalance inherent inpumpvolutes• Doublevolutedesignextendssealandbearinglife, minimizingnoiseandvibration,andimproving operating efficiency – meaning less wear and lower maintenance costs

Bearing Housing• Grundfos superior design combines seal and bearing chamberstoallowinspectionwithoutremovingthetop halfofthepumpcasing–savingtime,reducingtheuse of lifting equipment, and decreasing the safety risk• Compact,robusthousingconstructionhasa360-degree machinedfitandlimitsshaftdeflectionandoptimizes alignment

Impeller• Extendedvanesandenlargedeyecontributetoa reductioninvibrationandnoise

Coupling• Grundfosspecifiedgridcouplingdesignedtomeetthe pumptorquerequirementsprovideslongservicelife and reduced maintenance costs

Motor

Base plate

Impeller

Pump housing

Couplingguard-stainlesssteel

Coupling-Grid

Shaft

Wear ring

Bearing housing

Shaftsleeve

Shaft seal

Bearing

20 25 30 40 50 60 80 100 150 200 250 300 400 500Q [m�/h]

10

14

20

30

40

50

60

80

100

120

140

[m]H

HS

2-pole, 50 HzVers ion 5

125- 100-305

125- 100-280100-80-24265-50-242

20 30 40 50 60 80 100 150 200 300 400 500 600 800 1000 1500 2000 3000Q [m�/h]

4

56

8

10

15

20

2530

40

5060

80

100

150

200

[m]H

HS

4-pole, 50 HzVers ion 5

400-350-397

350-250-630

350-250-498

300-250-381

300-250-305

300-200-489

250-200-381

250-200-305

200-150-508200-150-483

200-150-381

200-150-305C

200-150-305A

1 50-1 25-381

150-125-305

125-100-381

125-100-305

125-100-280

100-80-356

100-80-242

65-50-331

65-50-242

60 80 100 150 200 300 400 500 600 800 1000 1500 2000 2500Q [m�/h]

4

5

6

7

8

10

15

20

30

40

50

60

70[m]H

HS

6-pole, 50 HzVers ion 5

400-350-397

350-300-508

350-250-630

350-250-498

300-250-381

300-250-305

300-200-489

250-200-381

200-150-508

200-150-483

HSRANGEovERvIEW 2/4/6 PoLE MotorS DoCUMENTATIoN Data Booklet• Technicalproductdescriptions• Productapplications• Performancecurves• Accessories• AvailableinWebCAPS

I&O• Installationandoperation• Warningsandsafetyrequirements• Targetedforinstallers,servicers,andend-users• Shippedwiththepump

Service Instructions• Descriptionofserviceprocedures• Intendedforservicetechnicians• AvailableinWebCAPS

WebCAPS/WinCAPS• Pumpselectionprogram• PDFliteraturefilesavailable• Servicevideos• Replacementpumpinformation• PumpCADdrawings

10 Ways to Kill Your HS Pump

1. Overwork itWorkthepumpcontinuouslyathighercapacities,flows,heads,or speeds than originally specified.

2. Starve itNevergreaseoroilthepump.

3. Choke it• Lowerthewaterlevelinthesump.• Letthesuctionstrainerclogandnevercleanit.• Letthetemperatureoffluidrisewithoutraising the suction pressure.

4. Fry itoperateatshutofffora longtimewiththebypass lineclosedtightwillconvertyourpowertoheat.

5. Poison itChangethepumpedfluidwithoutcheckingwiththemanufac-turer(forexampleaddingchemicals).

6. Stab itRemovethesuctionstrainerswhichwillintroducegrit,sand,andscaleintothefluid.

7. Break its limbsImposeheavypipingloadsonthesuctionanddischarge nozzle, either through initial misalignment or through thermal expansion.

8. Shake itDon’talignatinstallationorinstallonaflimsyfoundation.

9. Drown itFor a packed pump with a drain for the gland leakage: • Plugthedrainwithacigarettebutt,gumorpaper.• Removethewatershield.• Lineupthesplitsonthepackingrings.

10. Neglect check-ups• Ignorethemanufacturer’srecommendationsfor “check-ups”• Don’tcheckpacking,gaskets,o-rings,or other small parts. • Don’teverrepaintit,orlubricatethecoupling, if required. • Don’tcheckvibration.

IMPoRTANTSERvICE&INSTALLATIoNINFoRMATIoN

Being responsible is our foundationThinking ahead makes it possible

Innovation is the essence

FOr PrODuCT requeSTS, PleASe CONTACT:GMH2-CSu@GruNDFOS.COM

GruNDFOS A/SPoul Due Jensens Vej 7DK-8850 BjerringbroTel: +45 87 50 14 00

www.grundfos.com/industryThe name Grundfos, the Grundfos logo, and the payoff Be–Think–Innovate are registrated trademarks owned by Grundfos Management A/S or Grundfos A/S, Denmark. All rights reserved worldwide.

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