SERVICE

S E R V I C E

KU-Logo für farbigen HG

TWIN SCREW PUMPS SERIES DSP/DSPN

Klaus Union GmbH & Co. KG

Blumenfeldstr. 1844795 BochumGermany

KU_DSP_E_07/13_0001

Phone +49 234 45 95 - 0Fax +49 234 45 95 - 7000

E-Mail info@klaus-union.deInternet www.klaus-union.de

Pumps with Shaft Sealing

E TwinScrewPumps,DSP/DSPN/SSPE CentrifugalPumpsaccordingto

DINENISO2858,NOVE MultistageCentrifugalPumps, Tension-RodorBarrel-TypeDesign, GOS/GOVTE HorizontalandVerticalPropeller

Pumps,PE Bottom-FlangePropellerPumps,UPE SubmergedCentrifugalPumps,TPNOE DoubleSuctionCentrifugalPumps,NZ

Production Portfolio Valves:

E Valves,T-PatternE Valves,Y-PatternE GateValves,Isomorphous

ConstructionSeriesE GateValves,WedgeorWedgePlatesE ReliefValvesE CheckValvesE SightGlassesE StrainersE FiltersE BottomValves

Production Portfolio Pumps:

Pumps with Magnet Drive

E TwinScrewPumps,SLMLNE CentrifugalPumpsaccordingto

DINENISO2858,SLMNVE CentrifugalPumpsaccordingto ANSIB73.3,SLMAVOE CentrifugalPumpsforRefinery

andPetrochemicalApplications accordingtoAPI685,SLMAVPE CentrifugalPumpsforHighPressure

Applications,SLMSV/SLMGVE CentrifugalPumpsforHigh

TemperatureApplications,SLMNHOE CentrifugalPumpsforLiquids

ContainingSolids,SLMNVE Self-PrimingCentrifugalPumps,

SLMSVE MultistageCentrifugalPumps, Tension-RodorBarrel-TypeDesign, SLMGVE SubmergedCentrifugalPumps,

SLMNVTE Double-SuctionCentrifugalPumps,

SLMZV

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Klaus Union Twin Screw Pumps

KlausUnionTwinScrewPumpsseriesDSP/DSPNaredoublevolute,self-primingpositivedisplacement pumps for low, medium andhigh pressure duty, suitable for transport ofabrasive/non abrasive, corrosive/non corro-sive, lubricating/non lubricating,highor lowviscousfluids.

SelfprimingScrewPumpwith twoscrews indoublevoluteandhydraulicallybalancedde-sign.Thedrivetorqueistransmittedfromthedoublehelixdrivescrewtothelikewisedou-blehelixidlerscrewviaherringbonegears.

The screws rotate closely meshing but wi-thoutcontactinthespindleboreoftheinter-changeablepumpcasinginsert.Asaresultofthe special profile geometry, sealed cavitiesare formed, which transport the pumped li-quidcontinuouslywithlowshearandwithoutturbulencesfrombothsuctionchambersaxi-allytothedischargechamber.

For optimum strength and low shaft deflec-tionboth,drivescrewandidlerscrewarema-nufacturedfromsinglepiecebarstock.

The patented shape of the Klaus Unionspindleprofilerequires10to20%lesspowerconsumption compared to standard geome-triesofcomparablepumpdesigns.

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Quality Assurance

AmajorcomponentoftheKlausUnionethosistoensurehighestproductqualities.ExistingqualityassuranceprocedureswithKlausUni-on suppliers are constantly monitored fromorder placement, goods receipt to final as-sembly. This quality assurance system, de-velopedonlatesttechnologies,complieswiththerequirementsofinternationalregulations.Klaus Union is a DIN EN ISO 9001 certifiedCompany.

Twin Screw Pumps by Klaus Union are used in

E Oil&gasE TankstorageE ChemicalandpetrochemicalindustryE PowergenerationandfueloilsystemsE Shipbuilding

Twin Screw Pumps by Klaus Union are used for

E Crudeoilandfinished-productsE LowandhighviscousproductsE CleanorabrasiveproductsE NeutralorcorrossivechemicalsE FueloilE LubricatingoilE TarE BitumenE AsphaltE FatsE ResinsE Residues

Klaus Union Quality and Application

Klaus Union Twin Screw Pump Design

General DesignSelfprimingScrewPumpwithtwoscrewsindoublevolu-teandhydraulicallybalanceddesign.Thedrivetorqueistransmittedfromthedoublehelixdrivescrewtothelikewisedoublehelixidlerscrewviaherringbonegears.Thescrewsrotatecloselymeshingbutwithoutcontactinthespindleboreoftheinterchangeablepumpcasinginsert.Asaresultofthespecialprofilegeometrysealedcavitiesarefor-medwhichtransportthepumpedliquidcontinuouslywithlowshearandwithoutturbulencesfrombothsuctionchambersaxiallytothedischargechamber.Foroptimumstrengthandlowshaftdeflectionbothdrivescrewandidlerscrewaremanufacturedfromsinglepiecebarstock.PatentedKlausUnionspindleprofilerequires10to20%lesspowerconsumptioncomparedtostandardgeometries.

BearingDrivescrewandidlerscrewarecarriedinsphericalrollerbe-aringsortaperedrollerbearingslocatedoutsidethepumpingchamberondriveendandgearside.Thebearingsarenotincontactwiththepumpedliquidandhence,thepumpsaresuitabletohandlenon-lubricatingandcorrossiveproducts.Abearingoptionwithanintermediatelanternandbearingcoolingisavailableforhightemperatureapplications.Allbearingsareoillubricated.

Shaft SealsDrivescrewandidlerscrewaresealedbyunbalancedorbalanced,singleordoubleacting,maintenance-freemecha-nicalsealsinacc.withDIN24960ondrivesideandgearside.Sealmanufacturer,materialsanddesignareselectedtomatchtheactualoperatingconditions.

Shaft Coupling – Coupling Guard ShaftcouplingsinaccordancewithDIN740andcouplingguardsaresuppliedasaccessories.Asastandard,torsio-nallyflexiblethree-piececouplingswithanelasticspiderareused.Differentcouplingtypes,e.g.allmetalcouplingscanbedeliveredasanoption.UponrequestcouplingsandcouplingguardsinaccordancewithAPIandATEXrequirementsareavailable.

Installation/DriveKlausUnionTwinScrewPumpsSeriesDSP/DSPNaremoun-tedhorizontallyoncommonbaseplates.Theyareconnectedviaflexiblespacertypecouplingsorclutchestoelectricmo-tors,hydraulicmotorsorcombustionengines.Upon request, the pump units can be supplied with gearedmotors,mechanicalvariablespeedgearsorfluidcouplings.

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Klaus Union Performance Technology – Worldwide

Performance Data

Design Materials

User Advantages

E Twinscrewrotors(screwsandshafts) madeofasinglepieceofbarstockE Maximumallowablerotordeflection limitedtoaminimumoftheradial clearancebetweenlinerandrotorunder max.oparatingconditionsE Rotorsmanufacturedinpatentedenergy

efficientdesignE Rotorsmanufacturedinlow-pulsation- design

Flow Rate max. 5.000 m3/h (22,000 GPM)

Differential Pressure max. 100 bar (1,450 psi)

Viscosity max. 100,000 cSt

Temperature max. 350°C (662°F)

Pump Casing Carbon steel or stainless steel

Casing Insert Cast carbon steel or cast stainless steel

Drive and Idler Screws Single piece bar stock carbon steel or stainless steel

Casing Cover Carbon steel or stainless steel

Casing Seals NBR or FPM

Shaft Seals Selection depending on the individual operating conditions

Uponrequest,KlausUnionScrewPumps,SeriesDSPcanbeofferedinspecialdesignmaterialsmatchingtheparticularapplication.

Higherflowratesuponrequest.

E Rotorsmanufacturedinlow-NPSHR- designE GeardesignswithhelicalgearteethE Interchangeableliner(DSP)E Sealdesignwithintegratedflushingplans

availableE Integratedlubricationandcooling systemsforgearsandbearingsavailable

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Finland France Germany,Bochum Hungary India,Pune Indonesia Iran Italy Kazakhstan Kuwait Malaysia

Spain Sweden Switzerland Taiwan Thailand Turkey Ukraine UAE USA,Houston Vietnam

Mexico Netherlands Norway Oman Poland Qatar Romania Russia Singapore Slovakia SouthKorea

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KlausUnionSalesOffice

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