Performance Spectrum Transfer and Lubenks-kemipumpar.com/pumpar/scherzinger_formular/SCHER... ·...

T r a n s f e r a n d L u b e

Performance Spectrum

Transfer and LubeEngineers at Scherzinger consider the following criteria when designing these series of Gear Pumps for the Mechanical Industry:

■ The transferred fluid definesthematerialtobe used

■ The fluid temperature and the inlet pressure influencethesealtype

■ The differential pressure defines thedriveperformance

■ The viscosity affects therotationspeed

■ The application influencesthetypeof drive and design required

Rotating positive displacement pumps are characte-rized by the use of two geared rotors. The rotor that is fixed on the drive shaft transmits its rotation onto the second rotor. The rotation displaces a defined volume, drawing in fluid and transferring it out against pressure.

Dependingongearingselection,ScherzingerPumpTechnologyoffersExternalGearPumps,InternalGearPumpsandGerotorPumps.Duetothesimple,robustconstructionaswellastheoperationalsafety,thegearpumpisthemostcommonrotatingdisplacementpump.

We guarantee you high quality standards through:

■Continuousdevelopment of material technology

■ Cost effective manu- facturing methods for eventhemostdifficult material

■ Constant advances in surface technology

■ Miniaturisation of your productsbyadapted pumpconcepts

■Thespecificapplication ofvolumeflowregulated oilpumps,allowingfora reduced drive performance

Transfer and Circulation Pumps by Scherzinger

PumpingPrinciple

Scherzinger Gear Pumps described in this brochure are primarily used for lubricating fluids as well as partial use on other aqueous solutions.

Sample applicationsinclude:

■ Drive Technology: Hydraulic actuation for revolving doors systems

■ Chiller- and Air Compressors: Lubrication of bearings

■ Drives: Increaseddriveper- formancepossibleby specificpressureoil supply

Applications The Scherzinger Advantage

■ Industrial Process Heat Generation: Charging and draining of thermal oil systems

■ Wind Power Stations: Lubrication of large drives

■ Steam Turbine: Specificreductionof friction by bearing lubrication

■ Spread of Moist Salt: Moisturization of dry salt for road de-icing

Over70yearsofexperienceand cross-generation know-ledgereflectonthehighquality of Scherzinger Gear Pumps.

Due to a constant focus on customer-orientedsolutions,we guarantee you highest technologicalcompetence.

Customers worldwide trust in our high quality standards and rely on Scherzinger as aninnovationpartnerforin-telligenttransferapplicationsand systems for Mechanical Engineering.

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■Specificseriesproduct solutionsadaptedtothe application

■CertificationISO9001, TS16949andDINEN ISO14001

■Productionmachinery designed for high performancemanu- facturing

■Demandingproduct testing to guarantee highest quality

■Professionaland competentdevelopment team

■Comprehensiveproduct consultancy and service

■Continuouspromotion ofinnovationprocesses

PositiveDisplacementExternalGearPumpstrans-ferfluidbymeansoftworotating gears. The gear thatisfixedontheDriveShaft (Drive Gear) transmits its rotation onto the second (Driven) gear. As the gears revolve,asuctionzoneiscreatedontheinletportsideandfluidisdrawnintothe gears.

Asgearteethmesh,ade-finedvolumeoffluidisdis-placedaroundtheoutsideof both gears and is forced out through the discharge portsideagainstpressure.

■ Most common gear pumpprinciple

■ Low mechanical friction resistance

■ Low circumferential speed

■Temporarilyresistantto dryrunningoperation

■Appropriateforhigh viscosityfluids

OperatingRange DesignPrinciple

∆p: max. 70 bar

FlowRate: max.200RPM

InletPressure:- 0.8 bar to 50 bar (dependingonsealtype)

SuctionLift: max. 8 m

TemperatureRange: - 30 °C to + 300 °C

ViscosityRange: 0.6to500,000mPas✶

✶ Variableonspeed

Design Advantages

External Gear Pumps

The Pumps Can BeUsed:

■ for low to medium- viscous,particle-free liquids

■forlubricatingfluids

■ for light and heavy fuel oils

■ for variable rotation applicationsvia reversing feature option

■forspeeds von0–6,000RPM

■ for use in normal or hazardous environ- ments(ATEXII2Gand II2D)

Frequently Handled Fluids:

■ Lube Oils

■ Thermal Oils

■ Hydraulic Oils

■VarnishandInks

■ Emulsions

■ Cocoa Mass

■LiquidSoap

■ Heat Transfer Fluids

■ Vegetable Oils

■ Diesel Fuel

■ Aqueous Solutions

AreaofApplication Versions

■ ShaftSeals: PackedStuffingBox, Single or Double RotatingMechanical Seals,RadialShaft Seals,Magnetically CoupledSealless

■MetallicMaterials: GrayCastIron,Modular GraphiteCasting,Brass, Aluminium,Bronze,Steel

■BearingsandGears: Steel,Aluminum,Brass, GrayCastIron,Multi- Layer Sleeve Bearing

■ThreadedConnections: Metric,BSP,NPTorUNF

■VariableFlowRates- DifferentPumpHead Sizes

■AirMotors,DCand ECMotors,ACSingle andThree-PhaseDrive, Hydraulic Motors

ExternalGearPumpPrinciple

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The centralized external gear is driven by a shaft. The internal annular gear is positionedinthepumpcasing.Acrescentshapedpartitionseparatesthesuctionfromthepressureside.

Asgearsrotate,apartialvacuum is created on the suctionsideandfluidisdrawnintothepump.Thefluidbetweengearteethistransportedalongsidethecrescentwall.Intheareawheregearteethmesh,thefluidisdisplacedthroughtheoutletzoneofthepump.

OperatingRange DesignPrinicple

∆p: max. 120 bar

FlowRate: max.1.5RPM





✶ variableonspeed

Design

Internal Gear Pumps

■ Applicablefornoise- sensitive area

■Highdosingprecision

■Constantflowdueto lowpulsation

■Highdifferentialpressures

Advantages

The Pumps Can Be Used:

■ For low to medium- viscous,particle-free liquids

■Forlubricatingfluids

■ For light and heavy fuel oils

■ For variable rotation direction via installed reversing valve

■Forspeedsof 0–5,000RPM


■ShaftSeals:Packed StuffingBox,Singleor DoubleRotatingMech- anicalSeals,Radial ShaftSeals,Magnetically CoupledSealless

■MetallicMaterials: GrayCastIron,Modular GraphiteCasting, Aluminium,Brass

■ Bearings:Brass PlasticBronze,Multi- Layer Sleeve Bearing

■ Gears:Steel, Sintered Metal

■ThreadedConnections: Metric,BSPorUNF

■VariableFlowRates- DifferentPumpHead Sizes

■AirMotors,DCandEC Motors,ACSingleand Three-PhaseDrives, Hydraulic Motors

Frequently HandledFluids:

■ Lube Oils

■ Hydraulic Oils

■ Emulsions

■LiquidSoap


■ Vegetable Oils

■ Diesel Fuel

■ Glycols

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InternalGearPumpPrinciple

A set of gear like elements calledGerotorsproduceaflowratebytheopeningandclosingofspacesbetween the teeth. The inner (drive) gerotor element is driven by a shaft which in turn drives the outer (driven) gerotor elementwithinthepumpcasing.

Whenelementsrotate,apartialvacuumiscreatedasteethbegintoseparate,drawingfluidintotheinletport.Asteethbegintoengagereducingthespacebetweenelements,fluidisdisplacedoutthroughthedischargeport.

OperatingRange DesignPriniciple

∆p: max. 30 bar

FlowRate: max.200RPM





✶ variableonspeed

Design

Gerotor Gear Pumps

■ Cost-effective Gear Pumpconceptforlow differentialpressures

■Retentionofflowdirection with changing rotating direction via eccentric ring

■Fewrotatingparts

■ Small Size

Advantages

The Pumps Can BeUsed:

■ For low to medium- viscous,particle- free liquids

■ For lubricatingfluids

■ For light and heavy fuel oil

■ For variable rotation direction via installed reversing valve

■Forspeedsof 0–10.000RPM


■ ShaftSeals:Packed StuffingBox,Singleor DoubleRotatingMecha- nicalSeals,RadialShaft Seals,Magnetically CoupledSealless

■MetallicMaterials: GrayCastIron,Modular GraphiteCasting,Alumi- nium,Brass,Plastic

■Bearings:Brass,Plastic Bronze,Multi-Layer, Sleeve Bearing

■Rotors:Steel,Sintered Metal,ModularGraphite Casting

■Directfittoexisting driveshaft

■ Canbesuppliedwith filterunit

■ Variable number of teeth for customized flowandpulsation characteristics

Frequently HandledFluids:

■ Lube Oils

■ Hydraulic Oils

■ Emulsions

■LiquidSoap


■ Vegetable Oils

■ Diesel Fuel

■ Wax

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GerotorPumpPriniciple

Services

Services

As an innovation partner for intelligent transfer applications and systems, Scherzinger offers you a comprehensive service to fulfil your technical and logistic specifications.

Our worldwide representative network allows us to handle your specifications individually with flexibility in a prompt and reliable way.

Profit from:

■Productconsultancyandorderprocessinginyour national language

■ Ourlong-termexperienceinhandlingimports, exportsandcustomsclearance

■ High-qualityrepairsguaranteeingyoureliable customer service

■ Shortnoticeandcomprehensivereplacements within one workday

■Individualpumptrainingtailoredtoyourapplication

Ourlong-termexperienceandourexpertiseinMecha-nicalandPlantEngineeringallow us to offer you consul-tationservicesspecificallytailoredtoyourapplication.

Acompetentandpro-fessional evaluation and engineeringteamsupportsyouthroughouttheprojectphase.Onthebasisofyourspecificationswedeterminetheperfectsolutionforyourrequirements.

ProductConsultancy

Therefore you will profit from several advantages that will lead you faster and easier to your goal:

■Promptdevelopment andproductionof prototypes

■Testedpumpconcepts providethebasisfora successful sychronized combination of materials required

■Acomprehensiveknow- ledgeindevelopment andproductionofour productsguaranteeyou apreciseandfasttender preparation

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Inordertoreachspecificdesignrequirements,manycustomers need unique and speciallytailoredsolutions.

Wehaveidentifiedthisneed and have focussed for over70yearsondevelopingcustomized results for clients.Weplaceaveryhighemphasisonqualityperformanceforyouroptimalbenefit.

Benefitfromacloseandintensivecooperationwithourprojectmanagers.Asaclient,youwillreceiveprompthigh-qualitysolu-tionsthatarespeciallyde- signedforyourapplication–reliableandprecise.

You will profit from:

■ Aprofessionaland competentengineering team

■ The use of modern 3D-CADproduction stations

■ A fast and easy data transfer for almost all current CAD-systems

■ Ourcorecompetence ofchippingmaterials

■ Manifold synergies betweendevelopment andproductionduring thedesignprocess

Thequalityofourproductsis fundamental to our ongoing success. “Heart of Hightech”representsreliability – reliability that we guarantee you by means of extensive testing. Notonlydowetestexistingproductspriortodelivery,wealsotestnewdevelop-mentsunderfieldsimula-ted conditions.

Youradvantage:Youwillbe able to reduce the numberoffieldtestsandsave testing costs.

Additionally weguarantee you:

■ A modern testing facility

■ The execution of endurance test after individual coordination with you

■ Testing under field simulated conditions

■ Pre-productiontesting ofyourproduct

■ Technicians with comprehensive applicationandproduct expertise

CustomizedGearPumpSolutions VerificationandTesting

Pumpenfabrik Ernst Scherzinger GmbH & Co. KGBregstraße 23-25D-78120 FurtwangenTelefon +49 (0) 7723 6506-0Fax +49 (0) 7723 [email protected]

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