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DiamondFacesThenewdimensioninmechanicalsealtechnology
Your partner for sealing technology worldwide
ApplicationMechanical Seals
62 E
®
070907df_handout62E.indd 1 10.09.2007 16:36:12 Uhr
�
Introduction 3
Applications 4
Maincausesofpumpdamage 5
DiamondFaces®technology 7
Manufacturingtechnology 1�
Customerbenefits 14
References 16
Table of contents
070907df_handout62E.indd 2 10.09.2007 16:36:17 Uhr
3
Introduction
Anysystemcanonlybeasfunctionalasthelifespanofitsweakestcomponent.
Thisruleappliestoallproductsingeneral–andtomechanicalsealsinparticular.Investigationshaveshownthatthemechanicalsealisacriticalcomponentinpumps.Themostfrequentcauseofdamagetomechanicalsealsisstillthedamagetotheslidingfacesduetoinadequatelubricationwhichresultsdry-running.
This is precisely where the DiamondFaces® innovation comes in.
EagleBurgmannhasdesignedtheinnovativeDiamondFaces®microcrystallinediamondcoatingformechanicalsealsespeciallytocounterthisoperatingconditions.Throughintensecollaborationwithourcustomers,suppliersandinthiscaseespeciallywiththeFraunhoferISTinBraunschweig,wehavenowdevelopedthismanufacturingtechnologyformassproduction.
WithDiamondFaces®,EagleBurgmannhaslaunchedadevelopmentonthemarkettoprovideoutstandingwearprotectioninconditionsofdry-running,mixedfrictionandabrasivemedia.Asaresult,theservicelifeofmechanicalsealshasbeenincreasedmanytimesoverforalargenumberofapplications,themaintenanceintervalscorrespondinglyextendedandthelifecyclecostssignificantlyreduced.
DiamondFaces® from EagleBurgmann – the innovation for longer running times and greater reliability for your pumps and mixers.
070907df_handout62E.indd 3 10.09.2007 16:36:19 Uhr
4
Applications
Oil, GasMultiphaseapplications
Slurry applications Chemical industryMaximumchemicalresistance
Refi neriesLow-boiling-pointmedia
Pharmaceutical industryDry-runningwithoutproductcontaminating
Building servicesHotwater
Recommended applications
MechanicalsealsfromEagleBurgmanncoveranextremelywiderangeofapplicationsinnumerousindustrialsectors.Theyareusedasshaftsealsinpumps,agitators,compressorsandotherrotarymachineswhichhandleliquidandgaseousmedia.Mechanicalsealsareusuallysafeandreliablecomponentswhich,whenworkingcorrectly,generallyoperatewear-free.
But,whenlubricationisinsufficientorwhenthesealsarerunningdry,theslidingfacesbecomeextremelyhotwithinashorttime,leadingtotheirdestructionandtotalbreakdown.
TheDiamondFaces®innovationcomesintoitsownwhenitisthereliabilityofpumpsandmixersthatmatters.Thespeciallydevelopedcrystallinediamond
coatingoffersthesameadvantagesasnaturaldiamondandiseminentlysuitableforapplicationsintheoilandgasindustries,thechemicalandpharmaceuticalindustries,refineries,buildingservicesandslurryapplications.
070907df_handout62E.indd 4 10.09.2007 16:36:30 Uhr
5
Internationalanalyseshaveclearlyshownthatmechanicalsealsareresponsiblefor39%ofthedamagetopumpsandarethereforethemostfrequentcause.Abreakdownofthecostsaccountedforbypumprepairsalsoclearlyshowsthatmechanicalsealsrepresentthelargestsinglefactorat44%.
Outofthekeycomponentsofapump,themechanicalsealhassofarbeentheonewiththeshortestaverageservicelife.ItthereforehasamajorinfluenceontheMTBF/MTBRvaluesofthesystemasawhole.
TheprimaryaimofalloperatorsmustbetosignificantlyimprovetheMTBF/MTBRvaluesofthepump/systemandminimizetheprocessdowntimecostswhichresultfromunplannedinterruptions.
Theproblem-freeoperationofpumpsisanessentialrequirementforcost-effectiveandreliableoperationofplantsandsystems.
Main causes of pump damage
n Mechanicalsealn Miscellaneousn Impellern Operationn Couplingn Housingn Rollerbearings
1% 3%
15%
39%
34%
3%5%
�%
5%
18%
44%
30%
1%
Causes of pump failure Pump repair costs
Source: OMV AG, Pumps in Process Engineering, 2002
070907df_handout62E.indd 5 10.09.2007 16:36:31 Uhr
6
Thepairingofslidingfacesremainsthemostcriticalpartofamechanicalseal.Insufficientlubricationandtheassociateddry-runningwillcauseimmediatedestructionoftheslidingfacesiftwohardmaterialsarepairedtogether.Thisriskcanbereducedtosomedegreebypairingasoftmaterialwithahardmaterial(carbon-SiC)but,inthiscase,thecarbonwearsignificantlycompromisestheservicelifeofthecomponent.
DamageanalysescarriedoutbyEagleBurgmannhaveshownthat55%ofallmechanicalsealdamagesarecausedbydry-running.Thus,approximately�1%ofallpumpdamagesarecausedbydry-runningofthemechanicalseal.
TheanalysesperformedbyGrundfos,who(accordingtotheirownpublications)examinedthecausesofaround1.3millionpumpfailures,concludedthatdry-runningthesealwasresponsiblefor18%oftheoverallmalfunctions.
Source: EagleBurgmann, damage analysis, 2006
n Dry-runningn Normalwearn Materialresistancen Installationfaultsn Miscellaneous
8%
�5%
7%
5%55%
Analysis for breakdown of mechanical seals
DiamondFaces® can increase the service life of mechanical seals many times over for a large number of applications because of the excellent wear protection this innovation provides where dry-running, mixed friction or abrasive media are concerned – and therefore considerably extend the maintenance intervals.
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7
Graphitehas3covalentbonds,whereasdiamondhas4covalentbonds.Theincreasedhardnessresultsfromthehigherpackingdensityofthediamondstructure.Incontrasttodiamond,theatomiclatticestructureof,forexample,graphitecanbeshiftedslightly,whichisthereasonforthegoodlubricatingpropertiesofgraphiteassociatedwithhighwear(materialremoval).
DiamondFaces®isasyntheticallymanufactured,ultrapurediamondwiththesameoutstandingpropertiesasthenaturalstone.Amicrocrystallinecoatingof8µmthicknessonsiliconcarbidesealfaceswhichiscapableofperformancespreviouslyunheardofformechanicalseals.
What is a diamond?
Diamondisthehardestnaturalmaterialthatisknown.Thedifferencebetweendiamondandgraphiteliesinthenumberofbondsandthenumberofcovalentspacingsbetweentheatomiclattices.
Diamond is not DLC (Diamond Like Carbon)
DLCisacoatingprocesswhichEagleBurgmannusesingas-sealingtechnology.DLCcoatingshaveahighproportionofgraphite(ashighas60%insomecases)sothematerialpropertiescanbeanywherebetweenthoseofgraphiteandthoseofdiamond.DiamondFaces®technologyontheotherhandusespurecrystallinediamond.
DiamondFaces® technology
Diamond Graphite
sp3=4covalentbonds sp�=3covalentbonds
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8
So why choose a diamond coating?
TheSiC/SiCmaterialpairingswhichhavebeenincreasinglyfavoredforsealfacesduringthelast10-15yearsofferexcellentchemicalresistance,highresistancetoabrasionandarevirtuallywear-free,butonlywhenadequatelubricationisprovidedinthesealinggap.
Anyformofinsufficientlubricationduetodry-runningresultsinmassivetemperatureincreasesanddamagestheslidingfacesandsecondaryseals(O-rings).Inextremecases,thetimetototalfailureoftheslidingfacesmaybejustamatterofafewseconds.
CombiningSiCsealfaces(seathousings)withtheDiamondFaces®coatingallowslongerdryperiods(uptoseveralhours)withareducedbuild-upofheat.
DiamondFaces®hasthefollowingoutstandingcharacteristics:1.Lowcoefficientoffriction�.Virtuallynowear3.Outstandingcoatingadhesion4.Optimumsurfaceevenness
1. Considerable reduction of the coeffi cient of friction
Extensivegeneralandapplication-specifictestshavebeenperformedinordertooptimizethecompositematerial,SiC-diamond.Themostimportantobjectivewastominimizethecoefficientoffrictionduringdry-running(gaslubricationusingN�)andwetfriction.TheoutstandingperformanceoftheinnovativeDiamondFaces®coatinghasbeenconfirmedduringtestsatEagleBurgmannandFraunhoferIST.
Thecoefficientoffrictionmeasuredwhendry-runningcoatedsiliconcarbidesealfaces(DiamondFaces®)waslowerthanthatmeasuredforanSiC/SiCstandardpairingbyafactorof5.Duetotheexcellentdry-runningproperties,themicrocrystallinediamondcoatingwithstooduptoseveralhoursofdry-runningwithreducedbuild-upofheat.Thishasbeenconfirmedbyextensivefieldtestsinvariousapplications.
Coef
ficien
toff
rictio
nµ
1,0
0,8
0,6
0,4
0,�
0,0
0 �000 4000 6000 8000 10000 1�000 14000
DiamondSiCuncoatedDLCSiC+graphite
TestparametersSlidingvelocity:�m/sContactpressure:0.3N/mm�
Medium:dry-runningwithN�
Runningtime[s]
Source: EagleBurgmann test-bench results, coeffi cient of friction for gas lubrication using dry nitrogen
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9
The essential advantages:n Reducedsliding-facefrictionreduces
theheatgeneratedbyfrictionandthereforeincreasesdry-runningreliability.
n Theminimizedfrictionreducestheamountofheatgeneratedinthesealandthusprotectsthesecondarysealingelements(O-rings).
n Thereducedpowerconsumptionoftheslidingfacesallowsreducedcoolingofdoubleactingsystems.
n Highertemperatureapplicationlimitsforlow-boiling-pointmedia
nThepowerdemandsofthepumparelower
ThedifferencebetweenDiamondFaces®andSiC/SiCstandardpairingwasevengreaterwithliquidlubrication.Inthiscase,thecoefficientoffrictionwasupto8timeslower.
Source: Fraunhofer IST test-bench results, deionized water, vg = 7.6 m/s, p = 1 MPa
Coef
ficien
toff
rictio
nµ
0.10
0.08
0.06
0.04
0.0�
0.0000:00 04:00 08:00 1�:00 16:00 �0:00
Runningtime[s]
SiC/SiCuncoated
Running-inpeak
SiC/SiCcoated
070907df_handout62E.indd 9 10.09.2007 16:36:34 Uhr
10
2. Virtually no wear
Diamondisfamousforitsunsurpassedhardnessandexcellentchemicalandthermalresistance.Itisextremelyimportanttodistinguishbetweendiamond-likecarboncoatings(DLC)–whichEagleBurgmannhasbeenusingformanyyearsforanti-wearprotectioningas-lubricatedmechanicalseals–andthenewDiamondFaces®coating.TheDiamondFaces®coatingisacrystallinediamondcoating.
Thediamondcoatingischaracterizedbyvirtuallynowear,evenwhendiamondcoatingsarerunningagainsteachother.The8-µmthickmicrocrystallinediamondcoatingthereforeguaranteesanextremelylongservicelifecomparedwithuncoatedSiCsealfaces.
Wear rateTheaveragewearrateduringdry-runningconditions(N�)isbetween0.08µmand0.�µmperhourandisdeterminedbydifferentialmeasurementsbeforeandaftertribologicaltests.
Coef
ficie
nto
ffric
tion
µ(N
�)
0,8
0,7
0,6
0,5
0,4
0,3
0,�
0,1
0,00 �000 4000 6000 8000 10000 1�000 14000 16000
Runningtime[s]Wearrate0.08µm/h
300
�50
�00
150
100
50
0
Tem
pera
ture
[°C]
Source: Fraunhofer IST test bench results, random checking with N2 gas lubrication and wet medium deionized water
The essential advantages:n Virtuallynowear
(4extremelylongservicelife)n Outstandingwearprotectioneven
withmediawithhighsolidscontentsincediamondisthehardestknownmaterial
n Coatedhard/hardpairing4longservicelife(withacarbon/SiCpairingtheservicelifewouldbelimitedbythecarbonwear)
nNoreductionintheapplicationlimitsbecauseoftheinstabilityofcarbon,nosupportringsnecessary
n Longservicelifeevenduringpartialdry-running
nMaximumchemicalresistance4enablesstandardization
10.000HV Hardness 1.000…4.000HV1.150GPa Young‘s modulus 30…��0GPa�.000W/mK Thermal conductivity 0,1…10W/mK
Crystalline diamond coating
Crosssection
DLC (Diamond Like Carbon)
Crosssection
TopviewTopview
070907df_handout62E.indd 10 10.09.2007 16:36:35 Uhr
11
3. Outstanding coating adhesion
Thediamondformsachemicalbondwiththesiliconcarbideandtheresultantcoatingadhesionexceedsallknownpracticalrequirements.Thecoatingadhesioniscontinuouslycheckedwithtensiletestsandsandblastingtests.Duringlong-termteststoo,therewasnodetachmentofthecoating.
4. Optimum surface evenness
Theevennessofthesealingfacesisessentialforthefunctionalreliabilityofmechanicalseals.Inordertoguaranteefunctionalreliability,theevennessofthecoatedslidingfacesmustliewithinthetolerancerangeofuncoatedSICslidingfaces.WithDiamondFaces®,theoptimumevennessofthesealingfacesisguaranteed.
Source: EagleBurgmann, quality assurance
Source: EagleBurgmann, tensile test bench
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1�
WeatEagleBurgmannhavebeenmakingsignificantcontributionstosealingtechnologyformorethan1�0years.Weoperateonthebasisofintensecooperationwithourcustomersandsuppliersaswellasresearchinstitutesinordertoprovidesolutionstodemandingchallenges.DiamondFaces®representsamilestoneinthedevelopmentofmechanicalsealtechnologyandisopeningupnewdimensionsintheperformanceofdynamicsealingsystems.
Manufacturing process for the diamond coating
Forthelarge-area,uniformcoatingofsealfaces,anoptimizedHF-CVD(HotFilamentChemicalVapourDeposition)processisusedinordertomeettheserequirements.Thesurfacesarecoatedinavacuumchamber.Whilethisishappening,thetopographyofthesurfaceandtheorientationofthediamondcrystalscanbeadjustedbyselectivelyvaryingtheprocessparameters.Adepositionprocesstakesplaceduringaperiodofapproximately�4–36hoursinareactor,duringwhichdiamondcrystalsareformedfromagasmixtureofhydrogenandmethane.ThesediamondcrystalsaredepositedontoaSiCsurface(sealface)atatemperatureof800°C.Thediamondcrystalscreatedinthiswaygrowtogethertoformaclosedlayer.Thedepositionprocessisinitiatedwithtungstenfilamentswhichare
stretchedhorizontallyacrossthereactorandheatedtoaround�000°C.
Thearrangementofthetungstenfilamentsisoneofthekeyfactorsforensuringthatthecoatedsealfacesareperfectlyflat.Onlythehorizontalfilamentarrangementmakesitpossibletoprovidethemechanicalsealswithauniformblanketcoating.
Manufacturing technology
Hydrogen99%
Methane1%
Gasatmosphereinvacuum
Activationbytungstenfilaments
Depositionofdiamondcrystals(0.�-1.0µm/h)
T≈�000°
Pressure, energy, gas fl ow and gas phase
Process diagram (source: EagleBurgmann)
Source: Fraunhofer IST, seal face layout in the EagleBurgmann process with horizontal fi lament arrangement
070907df_handout62E.indd 12 10.09.2007 16:36:40 Uhr
13
However,EagleBurgmannalsosuppliesalargenumberofservice-provenrangesofsealsforpumpsandagitatorswhichhavedesign-dependentloose-fittedsealfacesandseatsandarethereforeidealforDiamondFaces®.Thereisalsotheoptionofrelativelysimpledesignadaptationforawholeseriesofseals.
For which types of seal is DiamondFaces® suitable?n Forallsealswithhard/hardpairings
madeofsiliconcarbiden Singleandmultiplemechanicalsealsn Generallyallsealswithloose-fitted
sealfacesandseats,suchasM7,H7,Cartex®andMG1
n Forrangeswheredesignadaptationisrelativelysimple,e.g.BurgmannHRorSHorSeccoMix®
The right seal for each application
BecausesiliconcarbidepackingringscoatedwithDiamondFaces®haveanextremelyhardsurface,furthermachiningisalmostimpossible.Inotherwords,thecoatingprocesshastobethelaststepinthemanufacturingprocessbeforeassemblingtheseal.Theso-calledshrink-fittingofsealfacesintometalcarriersisnolongerappropriatesincethisimpairstheplanarityofthesurfaceandre-polishingtheslidingfacesisoutofthequestion.
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14
Byoptimizingcrystallinediamondcoatings,itispossibletoincreasetheefficiencyofmechanicalsealsystemsconsiderablywhenthereisinsufficientlubrication,duringdry-runningorevenwhensealingagainstabrasivemedia.
1.Significantincreaseintheservicelifeoftheentiresystem
�.Returnoninvestmentwithinaveryshorttime
3.ExtensionoftheMTBFandMTBRvalues
4.Wideningoftherangeofapplications
1. Significant increase in the service life of the entire system
Thereducedsliding-facefrictionreducestheheatproducedbyfrictionandthereforeincreasesdry-runningreliability.Theminimizedfrictionalsoreducestheamountofheatproducedinthesealandthereforeprotectsthesecondarysealingelements(O-rings).
Sincethereisvirtuallynowearinthediamondcoating,evenwhenslidingfacescoatedwithDiamondFaces®arerunningagainsteachother,anextremelylongservicelifeisachievedevenduringpartialdry-running.Thediamondcoatingalsomakesforoutstandingwearprotection,evenagainstmediawithhighsolidscontent.
2. Return on investment within a very short time
Theinnovativecoatingtechnologymakesitpossibletoincreaserunningtimeandoperatingreliabilityconsiderablyandthereforedecreasetheoverallcostsoverthelifecycleofamechanicalseal.AnalyseshaveshownthattheROI(returnoninvestment)canbeobtainedafteronlyaveryshorttimeasresultofthesignificantlyincreasedservicelifeachievedbyadiamond-coatedmechanicalseal.
ThemaincostblockswhichcanbesignificantlyinfluencedwithDiamondFaces®are:- Serviceandmaintenancecostsofthe
machine- Serviceandmaintenancecostsofthe
seal- Costsduetodowntimeandloss-of-
productionorprecautioncosts(suchasredundantpumps)
Customer benefits
Return on Investment
Years 1 2 3 4 5 6 7
Life
Cyc
le C
osts
– Single seal with DiamondFaces– Single seal, API Plan 2 – Dual Seal, API Plan 53
Detailed ROI calculation using the FSA/ESA software “Life-Cycle Cost Estimator”
070907df_handout62E.indd 14 10.09.2007 16:36:46 Uhr
15
4. Widening of the range of applications
TheDiamondFaces®innovationcomesintoitsownwhenitisthereliabilityofpumpsandmixersthatmatters.DiamondFaces®isidealforapplicationsintheoilandgasindustries,chemicalandpharmaceuticalindustries,refineries,buildingservicesandslurryapplications.
3. Extension of the MTBF and MTBR values
Theaverageincreaseinservicelifecanbeexploitedtocombinemaintenanceactivitieswiththoseofotherengineeringorplantcomponentssuchasbearingsorcouplings.
Accordingtothisanalysisoftheaveragecomponentservicelife,pumprepairsandtheassociateddowntimesandproductionstopscanbeavoidedbysuccessfullyincreasingtheservicelifeofthemechanicalseals.
Duringnormaloperation,theamountoffrictionalheatproducedisalsoreducedbythereducedslidingfriction.Thelowerfrictionoutputoftheslidingsurfacespermitsreducedcoolingwithdoublesealsystemsandhighertemperaturelimitswithlow-boiling-pointmedia.Theuniversalchemicalresistancedemonstratedbytheproductanditsinsensitivitytomediawithhighsolidscontenthasmeantthatitcanbeusedinthechemicalandpharmaceuticalindustriesasstandard.Carbongraphitematerials,whichcanleadtoinadmissibleproductcontaminationunderabrasion,caninmanycasesbereplaced.
Example showing where the service life is increased from 1.5 years to 3 years
Without DiamondFaces® With DiamondFaces®
Mechanical seal1.5years
Bearing3years
Coupling4.5years
Shaft15years
0 3 6 9 1� 15Serviceintervalinyears
Shaft
Coupling
Bearing
Mechanicalseal
070907df_handout62E.indd 15 10.09.2007 16:36:47 Uhr
16
Total Deer Creek/ Bornemann, Canada
The challengeThenewSteamAssistedGravityDrainageprocessisusedtoexploitlargeoil-sandfieldsinCanada.Withthisprocess,oilcomponentsaredissolvedbyexposuretosteamandtransportedusingamultiphasepumpfromBornemann.Becauseoftheextremeabrasivepropertiesofthedeliverymediumandthedry-runningcondition,theaverageservicelifeofamechanicalsealis�weeks.
Operating conditionsn Substrate:Buka��nMedium(product):Hotwater,oil,gas
andsandn Productpressurep:1.0bar(abs)n Producttemperaturet:100°Cn Rotationalspeed:1300min-1
n Slidingvelocity:6m/s
The solutionTheservicelifewasincreasedmorethantenfoldbyusingtheinnovativeDiamondFaces®coatingincombinationwiththeBurgmannHJ4S1/80-G179.1mechanicalseal.Thenewcoatinginnovationistheoptimumsealingtechnologyforallmultiphaseapplications.
References
070907df_handout62E.indd 16 10.09.2007 16:36:50 Uhr
17
Refrigeration technology, screw compressor
The challengeTheoperationallyinducedevaporationofdissolvedcoolantinthesealinggapoftherefrigerationplantisunavoidable.Thescrewcompressoristhereforeforcedtorundry,whichinturnfrequentlyleadstoleaksatthemechanicalseal.Thisrequiredacost-effectivesolutionwithimproveddry-runningcapabilityforthemechanicalseal.
Operating conditionsn Substrate:Buka��nMedium(product):Oilwith1�%
R404A(dissolved)n Productpressurep:17.5bar(abs)n Producttemperaturet:45°Cn Rotationalspeed:3000min-1
n Slidingvelocity:17m/s
The solutionTheleakageratewasreducedbyafactorof4to5byusingaBurgmannH75/N/85-00withDiamondFaces®.
Dry-running tests
The ChallengePerformanceofdry-runningtestsindifferent(high-temperature)applicationsinthelaboratoryofBT-BurgmanninbenchmarkwithQ6Q6withoutcoating.
Operating conditionsnMedium(product):Airn Productpressurep:1.0bar(abs)n Producttemperaturet:�5°Cn Rotationalspeed:3000min-1
n Slidingvelocity:�.3-3.3m/s
Results-Q6Q6withoutcoating,failureaftera
fewminutes.-DiamondFaces®,ingoodcondition
after60minutes.
070907df_handout62E.indd 17 10.09.2007 16:36:51 Uhr
18
Lapping and washing at EagleBurgmann, Atec Automatisierungstechnik
The challengeIncreasetheservicelifeofmechanicalsealsduringlappingandwashingofSiCsealfaces.Theproducthandledisanabrasivemedium,withthebarrierpressurebeingappliedintermittently.
Operating conditionsnMedium(product):Diamondand
SiCwatersuspensionsn Productpressurep:1.8bar(abs)n Producttemperaturet:�5°Cn Barriermedium:Watern Barrierpressurep:4-6bar(abs)n Rotationalspeed:300min-1
n Slidingvelocity:0.9m/s
The solutionTheBurgmanndoublesealCartex/40andM7N/40withDiamondFaces®onBuka�7wassuccessfullyusedandtheservicelifeextendedbyafactorof6.
Pump start-up without media
The challengePreventsealfailureduringdry-runningandinsufficientlubricationwhencommissioningapumpwithouttheproductmedium.
Operating conditionsn Substrate:Buka��nMedium(product):Water/airn Productpressurep:�.0bar(abs)n Producttemperaturet:�0°Cn Rotationalspeed:3000min-1
n Slidingvelocity:17m/s
The solutionBurgmannMG/1�5withDiamondFaces®.Testsshowedsignificantimprovementduringdry-runningandwhentherewasinsufficientlubrication.
Without coating:Damage to sliding faces after 1500-2000 h, very high leakage
DiamondFaces®: Sliding faces in good condition after 11500 h, no leakage
070907df_handout62E.indd 18 10.09.2007 16:36:52 Uhr
19
Water pumps in swimming pools
The challengePreventsealfailuresduringdry-runningandwhenthereisinsufficientlubricationwhenrestartingaswimming-poolpumpwhichhas,forinstance,beenshutdownfortheseason.
Operating conditionsnMedium(product):Airn Productpressurep:�.4bar(abs)n Producttemperaturet:�4°Cn Rotationalspeed:1450min-1
n Slidingvelocity:�.5m/s
The solutionBurgmannMG/�8withBuka��DiamondFaces®madefor:improveddry-runningcapabilityunderconditionsinvolvinginsufficientlubricationandpermanentsealfailure.
Normal operation with occasional insufficient lubrication
Dry-running
Uncoated
after1�0min
DiamondFaces®
after1�0min
Normaloperation
Time/min
Tem
pera
ture
/°C
–––– SiC(uncoated)–––– DiamondFaces®
Insufficientlubrication
Tem
pera
ture
/°C
Time/min
–––– SiC(uncoated)–––– DiamondFaces®
Uncoated
after1min
DiamondFaces®
after15min
070907df_handout62E.indd 19 10.09.2007 16:36:56 Uhr
EagleBurgmann in your vicinity
All technical specifications are based on extensive tests and our many years of experience. The diversity of possible applications means, however, that they can serve only as guide values. We must be notified of the exact conditions of application before we can provide any guarantee for a specific case. Subject to change. 62
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Eagl
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arke
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Com
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Ger
man
y
Burgmann IndustriesGmbH & Co. KGÄußere Sauerlacher Str. 6–10D-82515 WolfratshausenPhone +49(0)8171 / 23-0Telefax +49(0)8171 / 23-1214www.eagleburgmann.com
ArgentinaChilicote S.A.Avda. Julio A. Roca 546C1067 ABN Buenos Aires, ArgentinaPhone +54 / 11 / 43 43 84 69Telefax +54 / 11 / 43 31 42 78
AustraliaEagleBurgmann Australia Pty. Ltd.16 Stennet t Road, Ingleburn, NSW 2565Phone +61/ 2 / 96 05 64 44Telefax +61/ 2 / 98 29 69 58
AustriaEagleBurgmann Austr ia GmbHVogelweiderstraße 44 aA-5020 SalzburgPhone +43 / 662 / 82 57 01Telefax +43 / 662 / 82 57 03
BelarusMetalkaUl. Obojnaja, dom 4, korpus 1 kv. 125220004 MinskPhone +375 17 211 0785Telefax +375 17 211 0785
BelgiumEagleBurgmann Belgium B.V.B.A.Zagerijstraat 11B-2960 Sint-Job-in't-GoorPhone +32 / 3 / 6 33 99 44Telefax +32 / 3 / 6 33 99 49
BulgariaKonstantin & SonsYantra Str. 13a, BG-SofiaPhone +359 / 2 / 9 43 41 90Telefax +359 / 2 / 9 43 41 99
BrazilEagleBurgmann do BrasilVedaçoes Industr iais Ltda.Av. Sta. Izabel, 1721CEP - 13084-643 Barao GeraldoCaixa Postal 65 60Campinas - Sao PauloPhone +55 /19 / 37 49 97 40Telefax +55 /19 / 37 49 97 42
CanadaNova Magnetics-Burgmann Ltd. One Research DriveDar tmouth, Nova ScotiaCanada B2Y 4M9 Phone +1/ 902 / 465 66 25Telefax +1 / 902 / 465 66 29
TG-Burgmann Ltd.3225 Mainway DriveBurlington, OntarioCanada L7M1A6Phone +1/ 905 / 3 35 14 40 Telefax +1/ 905 / 3 35 40 33
ChileSelloTecno Ltda.Luis Thayer Ojeda No. 0130OF 806 Providencia SantiagoChilePhone +56 / 2 / 333 33 03Telefax +56 / 2 / 333 25 19
ChinaBurgmann Shanghai Ltd.No. 127-8 Wenjing RoadMinhang, ShanghaiPeople's Republic of ChinaPhone +86 / 21/ 64 62 05 50Telefax +86 / 21/ 64 30 02 19
Burgmann Dalian Ltd.No. 86 Liaohe East Road, DD Por t116620 DalianPeople's Republic of ChinaPhone +86 / 411 8758 1000Telefax +86 / 411 8758 1418
EBI (Shanghai) Investment Management Co. Ltd.Room 205 B Cimic TowerNo. 1090 Century Ave. Pudong201120 ShanghaiPeople's Republic of ChinaPhone +86 21 58 36 15 99Telefax +86 21 58 35 48 38
ColombiaWilliam Tobon & Cia.Cr. 7 - 64 - 50 - Ex t . 301 Santafé de BogotaPhone +57 / 1 / 211 76 75Telefax +57 / 1 / 211 76 75
Cyprus & LebanonTRCI Ltd.122, Limassol Ave. PO Box 243711703 Nicosia, CyprusPhone+357 22 42 79 80Telefax +357 22 42 30 21
Czech RepublicEagleBurgmann Czech s.r.o.Na Drahach 1364CZ-15600 Praha 5 ZbraslavPhone +420 / 2 / 57 92 05 05Telefax +420 / 2 / 57 92 05 08
KE-Burgmann Czech s.r.o.V Láznich 395CZ-254 01 Jilove u PrahyPhone +420 / 2 / 41 02 18 11Telefax +420 / 2 / 41 02 18 30
DenmarkKE-Burgmann A/SExpansion Joints DivisionPark Allé 34, DK-6600 VejenPhone +45 / 75 36 18 11Telefax +45 / 75 36 15 32
KE-Burgmann A/SSeals DivisionIndustr isvinget 1, DK-6600 VejenPhone +45 / 75 36 49 88Telefax +45 / 75 36 39 88
KE-Burgmann Bredan A/SOdinsvej 1, Box 129DK-6950 RingkobingPhone +45 / 96 74 28 00Telefax +45 / 97 32 36 31
EcuadorPetroconsultant S.A.Fco. de Goya 262Urb. Los Cipresses IIEl CondadoP.O. Box 17-17-1254, QuitoPhone +593 / 2 / 49 17 52Telefax +593 / 2 / 49 35 09
EgyptAlimex Alexandria Impor t Expor t258 Abdel Salam Aref Str.Louran - El SarayAlexandria POB 313Phone +20 / 3 / 5 81 00 60Telefax+20 / 3 / 5 81 00 65
Estonia & LatviaFilter ASLäike tee 9, Peetri küla, Rae vald,EE-75312 HarjumaaPhone +00372 606 6606Telefax +00372 606 6650
FinlandKE-Burgmann Finland OyExpansion JointsP.O. Box 139, Ensimmäinen SavuSF-01510 VantaaPhone +358 / 9 / 82 55 01Telefax +358 / 9 / 82 55 02 00
Tiiv istetekniikka OyMäkituvantie 5, SF-01510 VantaaPhone +358 / 207 65 171Telefax +359 / 207 65 20 07
FranceEagleBurgmann France SASZone d’Activité les Perr iers106/108 Route de CormeillesBP 96, F-78505 Sar trouvillePhone +33 / 1/ 30 86 50 20Telefax +33 /1/ 39 15 16 07
GermanyKundenbetreuungs-Center Frankenthal Carl-Benz-Straße 15D-67227 Frankenthal
Service Center Rhein-MainPhone +49 / 62 33 / 770 89-120Telefax +49 / 62 33 / 770 89-131Werksbüro FrankenthalPhone +49 / 62 33 / 770 89-0Telefax +49 / 62 33 / 770 89-130Euroseals Customer ServicePhone +49 / 62 33 / 770 89-0Telefax +49 / 62 33 / 770 89-190
Kundenbetreuungs-Center Köln Gewerbegebiet RheinbogenVorgebirgsstr. 27D-50389 Wesseling
Service Center KölnPhone +49 / 2236 / 38 33 50Telefax +49 / 2236 / 38 33 70Werksbüro KölnPhone +49 / 2236 / 38 33 0Telefax +49 / 2236 / 38 33 20
Kundenbetreuungs-Center Nord Postweg 190 D-21218 Seevetal / Beckedor f
Service Center NordPhone +49 / 4105 / 6750-0Telefax +49 / 4105 / 6750-191Werksbüro BremenPhone +49 / 4105 / 6750-0Telefax +49 / 4105 / 6750-193Werksbüro Hamburg Phone +49 / 4105 / 6750-0Telefax +49 / 4105 / 6750-193Euroseals Customer ServicePhone +49 / 4105 / 6750-0Telefax +49 / 4105 / 6750-190Werksbüro OldenburgAugust-Wilhelm-Kühnholz-Str. 45D-26135 OldenburgPhone +49 / 4 41 / 5 46 39Telefax +49 / 4 41 / 5 54 28
Kundenbetreuungs-Center Ost Airpark MerseburgHans-Grade-Straße 4D-06217 Merseburg
Werksbüro CottbusPhone +49 / 3461 / 84 29 17Telefax +49 / 3461 / 84 29 30
Werksbüro LeipzigPhone +49 / 3461 /84 29 10Telefax +49 / 3461 / 84 29 30Service Center OstPhone +49 / 3461 / 84 29 20Telefax +49 / 3461 / 84 29 30
Kundenbetreuungs-Center Ruhr Am Piekenbrocksbach 8D-46238 Bottrop
Service Center RuhrPhone +49 / 2041 /1 88 51-50Telefax +49 / 2041 /1 88 51-70Werksbüro RuhrPhone +49 / 2041 /1 88 51-14Telefax +49 / 2041 /1 88 51-20
Kundenbetreuungs-Center Südwest Karlstraße 82D-72138 Kirchentellinsfurt
Werksbüro FreiburgPhone +49 / 7121 / 67 84 93Telefax +49 / 7121 / 96 30 44Werksbüro StuttgartPhone +49 / 7121 / 96 30 43Telefax +49 / 7121 / 96 30 44
Service Center BayernBurgmannstr. 1D-82547 EurasburgPhone +49 / 8171 / 23 17 37Telefax +49 / 8171 / 23 16 63
Service Center MarlGeb. 1192, PB 14Paul-Baumann-Str. 1D-45764 MarlPhone +49 / 2365 / 4 98 61 64Telefax +49 / 2365 / 4 98 61 60
Werksbüro FrankfurtDiezer Straße 108D-65549 Limburg/LahnPhone +49 / 6431 / 9 22 99Telefax +49 / 6431 / 9 22 98
Werksbüro MünchenPostfach 1240D-82502 WolfratshausenPhone +49 / 8171 / 23 12 71Telefax +49 / 8171 / 23 10 49
Werksbüro NürnbergRiedäckerweg 2D-90765 Fürth-StadelnPhone +49 / 911 / 7 67 00 87Telefax +49 / 911 / 76 76 23
Werksbüro RegensburgAussiger Str. 9 eD-93073 NeutraublingPhone +49 / 9401 / 52 22 77Telefax +49 / 9401 / 52 23 73
Espey Burgmann GmbHThomas-Edison-Str. 19D-47445 MoersPhone +49 / 2841 / 99827-0Telefax +49 / 2841 / 99827-55
Burgmann Automotive GmbHBurgmannstraße 1D-82547 EurasburgPhone +49 / 8171 / 23 15 10Telefax +49 / 8171 / 23 15 30
Great BritainEagleBurgmann Industr ies UK LP12, Welton RoadWedgnock Industr ial EstateGB-Warwick CV 34 5PZPhone +44 /1926 / 41 76 00Telefax +44 /1926 / 41 76 17
KE-Burgmann U.K .Eaton Bank, CongletonGB-Cheshire SW12 1NZPhone + 44 / 1260 / 29 12 89Telefax + 44 / 1260 / 29 13 03
GreeceA.G. Stambolidis & Co.Mitrodorou 22GR-10441 AthenPhone +30 /21/ 05 15 06 65Telefax +30 /21/ 05 15 08 10
HungaryEagleBurgmann Hungaria Kf t .Lejtö utca 6H-1124 BudapestPhone +36 /1/ 3 19 81 31Telefax +36 /1/ 3 19 81 25
IndiaBurgmann India PVT. LTD.A.K . Industr ial EstateMadina Manzil CompoundS.V. Road, Goregaon (West)Bombay 400 062Phone +91/ 22 / 28 74 15 34 Telefax +91/ 22 / 28 74 88 10
KE-Burgmann Flexibles India Pv t . Ltd. Survey No. 1426Nagappa Industr ial Estate,194 G.N.T. Road, PuzhalChennai 600 066 , IndiaPhone +91 / 44 / 6 59 06 32Telefax +91 / 44 / 6 59 09 17
IndonesiaPT EagleBurgmann IndonesiaJl. Jababeka Blok J6-EKawasan Industr i CikarangBekasi 17550 - Jawa BaratPhone +62 / 21/ 8 93 53 13 Telefax +62 / 21/ 8 93 53 15
IrakWTEUkba Sq., Mahala 929Zuhak 2, House No. 5P.O. Box No. 2421Al Jadria, BaghdadPhone +964 171 99033Telefax +964 171 93034
IranBurgmann Pars Sealing Systems Co.No. 1, Kokab Alley, Pasdaran Ave.TeheranPhone +98 / 21/ 2 86 28 19Telefax +98 / 21/ 2 85 44 81
IsraelETA Engineering Ltd.P.O. Box 890Ramat-Gan 5210818 Tushia St .Phone +972 / 3 / 6 24 19 45Telefax +972 / 3 / 5 62 84 75
ItalyEagleBurgmann Italia s.r.l .Viale Martiri della Liberazione, 12I-23875 Osnago (LC)Phone +39 / 039 / 95 22 501Telefax +39 / 039 / 928 94 83
BT-Burgmann S.P.A.Via Meucci, 58I-36057 Arcugnano (Vi)Phone +39 / 0444 / 28 89 77Telefax +39 / 0444 / 28 86 93
JapanEagle Industr y Co., Ltd.General Industry Overseas Sales Dept.Marketing & Sales Division1-12-15, Shiba-Daimon, Minato-kuTokyo, 105-8587Phone +81/ 3 / 3432-4771 Telefax +81/ 3 / 3438-2370
JordanEman Essa Trading Est .P.O. Box 840067Amman 11180 Phone +96 / 279 / 5 57 66 92Telefax +96 / 265 / 66 55 96
KazachstanGlobe InterstarFurmanova Street 240, Office 18050059 AlmatyPhone +7 / 327 / 264 34 86Telefax +7 / 327 / 264 33 82
KoreaEagleBurgmann Korea Co. Ltd.541, Suwolam-Ri, Seotan-MyonPyongtaek-Si, Kyongki-Do, -451-850-,Pyongtaek Yosu Busan Daegu Phone +82 / 31/ 664-40 95Telefax +82 / 31/ 664-40 94Branch Offices: Ulsan
KuwaitDan Trading & Contracting Co. W.L.L.P.O. Box 509213051 Safat , KuwaitPhone +965 / 2 43 25 53Telefax +965 / 2 43 78 33
LibyaUnited Technical & Engineering Miseran St.P.O. Box 81276 Tripoli G.S.P.L.A.J.Phone +218 21 4442 641 Telefax +218 21 4776 152
LithuaniaDmitr i MelnikowBalandziu 5 - 2LT-91188 KlaipedaPhone / Fax +370 46 31 29 49Mobile +370 69 82 14 27
MalaysiaEagleBurgmann (Malaysia) Sdn. Bhd.No. 7, Lorong SS13, 6 BOf f Jalan SS13/6Subang Jaya Industr ial Estate47500 Petaling JayaPhone +60 / 3 / 56 34 86 24Telefax +60 / 3 / 56 34 97 42
MexicoEagleBurgmann Mexico S.A. de C.V.Calzada de GuadalupeNum. 350-6, Col. El Cerr itoC.P. 54720, Cuautit lán Izcalli ,Estado de México, Mexico Cit yPhone +52 / 55 / 58 72 53 93Telefax +52 / 55 / 58 72 64 93
MoroccoPetro-MatAngle Rue Michel de l'Hôpitalet Rue Jules CesarCasablanca 05Phone +212 / 240 / 87 99 Telefax +212 / 240 /19 39
NetherlandsEagleBurgmann Netherlands B.V.Kruisboog 21bNL-3905 TE VeenendaalPhone +31/ 318 / 54 20 00Telefax +31/ 318 / 54 15 35
New ZealandEagleBurgmann New Zealand Ltd.P.O. Box 34285, Birkenhead, 3 Parity Place, Glenfield, AucklandPhone +64 / 9 / 4 43 57 72Telefax +64 / 9 / 4 41 27 66
NigeriaSealing Engineering Services Ltd.82 St. Finbarr's College RoadAkoka / Yaba, LagosPhone +234 /1/ 82 59 09Telefax +234 /1/ 82 59 09
NorwayEagleBurgmann Norway ASP.O. Box 143 Industriveien 25 DN-2021 SkedsmokorsetPhone +47 / 64 / 83 75 50Telefax +47 / 64 / 83 75 75
OmanOverseas PetroleumEquipment Co. L.L.C.P.O. Box 261, HamriyaPostal Code 131, Sultanate of OmanPhone +968 / 60 21 82Telefax +968 / 60 20 84
PakistanAzif Asim AssociatesSuit #02, 1st Floor, Sameer plaza Civic Center, 3-C1Faisal Town54660 Lahore, PakistanPhone +92 / 42 / 111 585Telefax +92 / 42 / 516 83 44
PeruCorporación Gamma S.A.C.Av. La Marina 1321, San MiguelLima - PeruPhone +51/12 / 63 76 70Telefax +51/12 / 63 02 86
PhilippinesBurgmann (Philippines) Inc.No. 9769 National Road, MaduyaCarmona, Cavite Phone +63 / 49 / 8 39 06 55Telefax +63 / 49 / 8 39 06 54
PolandKE-Burgmann Polska Spólka z.o.o.Ul. Technikow 40PL-02-468 WarsawaPhone +48 22 863 12 45Telefax +48 22 863 12 50
PortugalEagleBurgmann Ibérica S.A.Avda. de Quitapesares, 40E-28670 Villaviciosa de Odón, MadridPhone +34-91-616 66 01Telefax +34-91-616 66 81
QatarJaidah Motors and Trading Co.P.O.Box 150Doha / Qatar / Arabian GulfPhone +974 / 68 21 82Telefax +974 / 41 41 00
RomaniaVisand Impex S.R.L.Str. Apusului nr. 78, sector 6RO-776231 BucurestiPhone/Fax +40 / 21/ 4 34 46 46
RussiaEagleBurgmann OOO ul. Zheleznodorozhnaya, 1 , str. 45 606524 Zavolzhye Gorodetsky district, Nizhny Novgorod region Phone +7 / 831 / 6 93 05 58Telefax +7 / 831 / 6 93 05 59
Moscow Representation Ul. Novotcheremuschkinskaja 61RF-117418 MoskauPhone +7 / 095 / 7 97 20 14 Telefax +7 / 095 / 7 97 20 78
Saudi ArabiaBurgmann Saudi Arabia LimitedPO box No. 3422, Dammam Por t RoadDammam, Saudi ArabiaPhone +96 / 63 / 8 59 91 19Telefax +96 / 63 / 8 59 92 29
Gas Arabian Services EstP.O.Box 3422Dammam 31471, King Saud StreetKingdom of Saudi ArabiaPhone +96 / 63 / 8 35 15 00Telefax +96 / 63 / 8 32 28 22
SingaporeEagleBurgmann Singapore Pte. Ltd.52 Serangoon North Avenue 4, #03-02 Ever Tech Building555853 Singapore Phone +65 / 64 81 34 39Telefax +65 / 64 81 39 34
EBI Asia Pacif ic Pte. Ltd.29 International Business Park, Acer Blg, Tower B, #03-03609923 SingaporePhone+65 / 65 65 66 23 Telefax +65 / 65 65 96 63
KE-Burgmann Singapore Pte. Ltd.Expansion JointsBlk 7 Pioneer Road Nor thNo. 01-51, Singapore 628459Phone +65 / 62 61 85 81 Telefax +65 / 62 61 85 89
Slovenia (CRO, BIH, MAC, YU)Branch Of f ice SloveniaMalci Beliceve 37SLO-1000 LjubljanaPhone +386 / 1/ 4 23 15 57Telefax +386 / 1 / 2 57 40 57Mobile +386 / 41 / 66 13 15
Slowakian RepublicEagleBurgmann Czech s.r.o.Na Drahach 1364CZ-15600 Praha 5 ZbraslavPhone +420 / 2 / 57 92 05 05Telefax +420 / 2 / 57 92 05 08
Technosam s.r.o.Galvaniho 2/ASK-82104 BratislavaPhone +421 / 2 / 43 41 35 85Telefax +421 / 2 / 43 41 36 03
South AfricaEagleBurgmann SealsSouth Afr ica (PTY.) LTD.1 Brunton CircleFounders View South, Modder fonteinJohannesburg 2065, Gauteng, R.S.A.Phone +27 /11/ 4 57 90 00Telefax +27 /11/ 6 09 16 06Postal adress: P.O. Box 1210, Edenvale 1610, R.S.A.Also responsible for: Namibia, Botswana, Swaziland, Zambia, Zimbabwe, Mozambique, Mau-r it ius, Congo, Ethiopia, Uganda, Tanzania
SpainEagleBurgmann Ibérica S.A.Avda. de Quitapesares, 40E-28670 Villaviciosa de Odón, MadridPhone +34-91-616 66 01Telefax +34-91-616 66 81
SwedenEagleBurgmann Sweden AB Svärmaregatan 3 S-60361 NorrköpingPhone +46 /11 / 14 00 05Telefax +46 /11 / 14 00 15
Göteborg Of f iceExpor tgatan 73S-40123 GöteborgPhone +46 / 31 / 58 68 50Telefax +46 / 31 / 58 14 66
SwitzerlandEagleBurgmann (Switzerland) AGHofstrasse 21, CH-8181 HöriPhone +41 / 44 / 8 60 88 00Telefax +41/ 44 / 8 61 01 35
TaiwanEagleBurgmann Taiwan Co. Ltd.1F No. 7, Lane 144 Chi Lin Rd.TaipeiTaiwan, R.O.C.Phone +886 -2- 2581 0040Telefax +886 -2- 2523 2793
ThailandEagleBurgmann (Thailand) Co. Ltd.Banga Tower C, Floor 18th40/14 Moo 12 Banga-Trad Rd.Km. 6.5 Bangkaew, BangpleeSamutprakarn 10540 Phone +66 / 2 / 7 51 96 21Telefax +66 / 2 / 7 51 96 28
TrinidadEswil Equipment & Supply(W.I.) Ltd10 - 16 Lady Hailes AvenueSan Fernando, Tr inidad, W. I.P.O. Box 3585, La RomaineTrinidad, W. I.Phone +1/ 868 / 6 57 88 38Telefax +1/ 868 / 6 52 90 02
TunisiaIndus Serv S.A.R.L69 Rue Houcine BouzaieneApt. N°4, 2 éme Etage1001 Tunis Phone +216 / 71 / 337 215Telefax +216 / 71 / 337 214
Turkey
TurkmenistanGlobe InterstarAndaliba Street 8274011 AshgabatPhone +993 / 12 / 47 73 24Telefax +993 / 12 / 47 73 25
UkraineIRT-TechnogermUl. Komsomolskaja, 13040009 SumyPhone +380 542 610 324Telefax +380 542 610 326
United Arab EmiratesEagleBurgmann Middle East FZEP.O. Box 61310Jebel Ali Free ZoneDubaiPhone +971/ 4 / 8 83 88 41Telefax +971/ 4 / 8 83 88 43
UruguayBilpa S.A.Casilla Correo 889Código Postal 11800Santa Fé, 1.131 - Montevidéo- UYPhone +598 / 2 / 29 33 43Telefax +598 / 2 / 29 06 87
USAEagleBurgmann Industr ies LP10035 Brookriver Dr. Houston, Texas 77040Phone +1/ 713 / 9 39 95 15Telefax +1/ 713 / 9 39 90 91
KE-Burgmann USA Inc. 2100 Conner RoadHebron, Kentucky 41018Phone +1 / 859 / 746 0091Telefax +1 / 859 / 746 0094
UzbekistanGlobe InterstarNukus Str. 13 / 2100015 TashkentPhone +998 / 71 / 133 39 58Telefax +998 / 71 / 133 49 74
VenezuelaBurgmann de Venezuela C. A.Calle 6 contra Calle 9Edif icio Fant, Piso 2, La UrbinaCaracas, Dt to. Sucre, 1073Edo. Miranda, VenezuelaPhone +58 / 212 / 2 42 15 48Telefax +58 / 212 / 2 42 45 44
VietnamBavico Ltd. 97A Ly Tu Trong Street , Distr ict 1Ho Chi Minh Cit y, VietnamPhone +84 / 8 / 8 24 30 46Telefax +84 / 8 / 8 22 35 82
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