M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

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CaseStudy:#0006

FormosaSyntheticRubberCorporation,partofFormosaGrouphadcompletedtheconstructionof50KTAIsobutyleneandIsopreneRubberPlantinNingboZhejiang.TherearetremendouschallengeswhencomingtopumpinghighlyflammableandhighvapourpressurefluidsinthePetrochemicalIndustry.ManyexperiencedengineerslamentedthattherewerenoreliablepumpsavailableinthemarketplacewhichcouldsuccessfullyhandletheLowNPSHA,gas/liquidmixture,lowviscosityandexplosivenatureofthesefluids.Ironically,mostplantengineerswouldimmediatelyrejecttheproposalonmagneticallydrivenpumpswhichwerefrequentlysynonymouswithpoorreliabilityandcostlyfailures,SaidMr.Fong,FormosaRotatingEquipmentSpecialist.However,withthelatestdevelopmentandbreakthroughincombinationsidechannelpumpsbyMPumps,solutionsarenowavailableforplantengineerstotacklethesechallengesposedbythevolatilefluidsinthePetrochemicalIndustry.TraditionallyVS6,VerticalMultistages,Doublecasing,VerticallySuspendedCentrifugalPumpsareusedfortransferringandunloadingIsobutyleneinthetankfarm.ThemainreasonistotacklethelowNPSHAbyloweringthepumpheadintothegroundtoincreasetheNPSHAagainstthePumpsNPSHR.Themultistageimpellersaretoproducehighpressureneededtodeliverthefluidintotheprocess.However,thedesign,installation,maintenanceandthemechanicalsealsystemarecomplicatedandcostlyforaVS6Pump.Thedeliveryleadtimecouldalsotakeupto12months.Facingwiththehighcost,designchallengesandalongleadtimeforacquiringVS6pumpsfortheproject,theFSRCprojectteamhadmadeanunprecedenteddecisiontoinstallMPumps;combinationmultistagesidechannelpumps,SCMAGMseriestoaddressthepumpingofIsobutyleneinthetankfarm.ThedistinctivefeaturesofSCMAGMseriesofcombinationsidechannelpumpsareasfollow:

1) TheSCMAGMseriesismagneticallydrivenseallesspumps.Thatmeansthesepumpsareleakfreewithouttheneedsofanymechanicalsealanditsupportingsealingsystem.

Breaking new ground for the application of combination side channelpumps for Isobutylene tank farm at Isobutylene Isoprene Rubber (IIR)FormosaNingboPlant.

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

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2) ThecurrentSCMAGMseriesofpumpsofferscapacityupto85M3/hrandtotaldynamicheadof450m,makingthisrangeofpumpssuitablefortankfarmtransferapplication.

3) TheSCMAGMseriesofpumpsismanufacturedinaccordancewithAPI685,Doublecasing,centrelinemountedwithmaximumworkingpressureof50BarG.Thatmeansthesepumpsarebuiltwithgreatreliabilityandperformance.

4) TheSCMAGMseriesofpumpsisselfpriming,abilitytohandleupto50%liquid/Gasmixture.ArmedwithfirststagelowNPSHRimpellerandmultistageperipheralimpellermeanthesepumpscanachieveanNPSHRaslowas0.3meter.Theinherentselfbalanceoftheperipheralimpellerenablesthesepumpstoresistcavitationduringanunfavorableprocessconditions.

5) TheSCMAGMseriesofpumpsisbuiltwithtwoconfinedgasketswhichgreatlyreducesthepotentialleakedpointsandenhancesthesafetyoftheplantwhenpumpinghighlyexplosiveandflammablefluids.

Thecombinationmultistagesidechannelpumps,SCMAGMseries,offereddistinctadvantagesagainstVS6asfollow:

1) ByinstallingSCMAGM,thetotalcostsofequipmentprocurement,installationandfuturemaintenancearegreatlyreducedascomparewithVS6.

2) TheinstallationissimplifiedforSCMAGMwhichjustplacedhorizontallyonthefoundationascomparetoVS6inwhichaholemustbedugonthegroundtoaccommodatetheverticallysuspendedpumpsalongwithitscaisson.

3) NomechanicalsealisdeployedonSCMAGMmeansinstallationisgreatlysimplified.MechanicalsealanditssealingandmonitoringsystemareneededforaVS6Pumpsinstallation.

4) SCMAGMisselfpriming,selfvent,resistscavitationunderunfavourbleconditions.VentingisrequiredforVS6pumpforitsmechanicalsealwhichisinstalledonthetopofthepumpscolumn.VS6Pumpsaremultistagecentrifugalimpellerdesignedwhicharepronetodamagewhenhandlinggas/liquidmixture.

5) EaseofmaintenanceastheSCMAGMisinstalledhorizontallyonthefoundation.AnyrepairworkscarryoutonVS6willrequireliftingequipmentandthehassleofdealingwithlonglineshaft.

6) General8~16weeksofdeliveryleadtimeisrequiredforSCMAGMascompareto24weeks~52weeksdeliveryforaVS6pump.

ThroughthetechnicalmeetingwithMPumps,wehadcometoknowthatthereweremanygreatinnovationsanddevelopmentsinMPumpsthatbroughtthemagneticallydrivenpumpstechnologiestoanewfrontier.WeweredelightedtolearnaboutthenewbreakthroughsinthedesignofSCMAGM.,andthesuperiorfeaturespossessedbythisrangeofpumps.Infact,manyofourbusinessunitswerefacingthechallengesofhandling

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

3

volatilefluidsandIwasnothesitatingtorecommendthecombinationsidechannelpumpstosolvetheexitingpumpsandsealfailuresinotherFormosasplants,SaidMr.Fong.InfactMPumpshadasimilarapplicationfor2unitsofSCMAGM30/6SA600operatingwith20%ChlorineGas/liquidmixtureinFormosaPlasticsGroup,TexasUSA.ThisprovenapplicationhadfurtherconvincedhimthatthiswastherighttypeofpumpsforpumpingIsobutyleneinthetankfarmfortheIIRNingboProject.SpecificationofPumpsinstalledinIIRProject:1) Service:IsobutyleneTransferPumpsModel:SCMAGM50/8SA300NumberofStages:8StagesFeatures:DoubleCase(Barrel),centreLinemounted,withonly2confinedGaskets.Centrelinemounted.Medium:IsobutyleneCapacity:14.7m3/hr@218meter.SG:0.569Viscosity:0.15cPsVapourPressure:4.7BarANPSHA:0.94meterNPSHR:0.5meterDesignPressure:50BarSuction/Dischargeconnection:4/2ANSI#300RFFlangeWettedMaterial:CF8MMotor:22KW/1450RPM,380V/3PH/50Hz,DIIBT4.Qty:2sets2) Service:IsobutyleneTruckUnloadingPumpModel:SCMAGM50/2SA300NumberofStages:2StagesFeatures:DoubleCase(Barrel),centreLinemounted,withonly2confinedGaskets.Medium:IsobutyleneCapacity:16m3/hr@75meter.SG:0.569Viscosity:0.15cPsVapourPressure:4.7BarANPSHA:1.37meterNPSHR:0.5meterDesignPressure:50BarSuction/Dischargeconnection:4/2ANSI#300RFFlangeWettedMaterial:CF8M

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

4

Motor:7.5KW/1450RPM,380V/3PH/50Hz,DIIBT4.Qty:1setSiteInstallationPhotos:

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

5

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

6

PossibleApplicationsandSolutions

TheSideChannelPumpsareuniquelydesignedtohandleLiquid/GasMixtureupto50%withoutimpairingtheperformanceofthepump.Thedesignofthestellarimpellerisnotonlyinherentlyselfbalancedbutenablesittohandleentrainedgasesandresistscavitation.Ithasanamazingcapabilityofgenerating10timesthedynamicheadascomparetostandardcentrifugalpumpsandpossessesexcellentselfprimingandgashandlingcapabilities.WiththecombinationoffirststageLowNPSHRcentrifugalimpeller(Aslowas0.3meter).Itisnowbeingconsideredasthebestpumpingsolutionforhandlinghighlyvolatileliquid;suchasIsoprene,Isobutylene,Isoprene,LPG,Butadiene,Propylene,MethylChlorideetc.,whicharehighlyvolatile,flammableandexplosive.Thesepumpsareremarkablefortankfarm,truckloadingandunloadingapplicationsinthepetrochemicalindustrywhichinvolvehighlyvolatileliquid.ByreplacingVS6,verticalmultistage,caissonpumpsintankfarmapplicationtoreduceinstallationandequipmentcosts,simplifyinstallationandeaseofmaintenance.Plantownerscannowrealizetheoperationalreliability,safety,andenormousfinancialbenefitgainedbyspecifyingMPumps;heavyduty,magneticallydrivenseallessCombinationSideChannelPumpsfortheabovementionedapplications.

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

7

WorkingPrincipleBelowisthebriefexplanationoftheworkingprincipleofSideChannelPumps.

ThePumpedliquidorliquid/GasmixtureentersthesuctionstagethroughPortB1asthestarimpellerCrotates.Asthecentrifugalforcebuildsup,causesthepumpedliquidtomovebackandforwardmanytimesinthestarwheelCcreatinganintensetransferofenergywhichcangenerate10timesthepumpheadcomparetoastandardcentrifugalpumpsrotatingatthesamespeed.TheCentrifugaleffectofthestarimpellerseparatesthegasfromtheliquid.ThegasbeinghavingalighterdensityisbeingforcetotherootoftheStarimpellerbytheliquid.Asbothliquid/Gasmixtureapproachtheinterrupter,theliquidwillpassthroughportA1intonextstageorintothedischargeandthegaswillpassthroughportA3intonextstageorintothedischargeduringnormalpumpingprocess.ForselfPrimingoperation,moreandmoregasisevacuatedfromtheintakeuntiltheliquidfullyfloodedthepumpandfullpumpingisnowstarted.Theuniquestellarshapedesignedoftheinterstageimpellersenablesthepumptoresistcavitationincomparisontonormalcentrifugalimpellerwhichfacesseverecavitationandvibrationissuewithjust5%entrainedgas.TheuniquefeatureofthesidechannelpumpenablesthePumptoemptyorventintakelineprovidedthereissufficientliquidretainsinthepumpchamber.Theremainingliquidretainsinthepumpschamberplayanimportantroleforthepumptocarryoutcontinuousselfprimingcycle.END

Jan2015

M Pumps Asia Pacific Pte. Ltd. No.42 Mactaggart Road, #02-2 Mactaggart Building

Singapore 368086 Tel:(65) 6316 1339 Fax: (65) 6287 1406

Email: dpee@mpumps.it

8

Incriticalfluidhandlingapplicationswherepumpsfailureisnotanoption,safetyandenvironmentcannotbecompromised,youcantrustonMPumpstodelivertheapplicationandengineeringexpertise,productportfolioandreliableperformancethatcomewiththestrengthsandresourcesoftheworldleadingmanufacturerinmagneticallydrivenPumpstechnologies.ThisarticleiswrittenbyDavidPee.,GeneralManagerofMPumpsAsiaPacificPte.Ltd.Hecanbereachedatdpee@mpumps.it.FormoreinformationaboutMPumps,KindlyvisitourCorporateWebSite:http://www.mpumps.it