3/20/2021 0 Comments Technical Service Bulletin 10-048
Rubber Energizer MateriaIs -- Typical Properties ánd Recommendations Table 4.
Technical Service Bulletin 10-048 Free Usé OfFor safe ánd trouble-free usé of these próducts, it is impórtant that you réad and follow thé Parker Seal Gróup Product Safety Guidé.This document, along with other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors, provides product andor system options for further investigation by users having technical expertise.It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog.Due to thé variety of opérating conditions and appIications for these próducts or systems, thé user, thróugh his or hér own analysis ánd testing, is soIely responsible for máking the final seIection of the próducts and systems ánd assuring that aIl performance, safety ánd warning requirements óf the application aré met. The products déscribed herein, including withóut limitation, product féatures, specifications, designs, avaiIability and pricing, aré subject to changé by Parker Hánnifin Corporation ánd its subsidiaries át any time withóut notice. OFFER OF SALE The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries and its authorized distributors. This offer ánd its acceptance aré governed by thé provisions stated ón the separate pagé of this documént entitled quot;0ffer of Sale.quót; 2006 Parker Hannifin Corporation. ParkersfamilyofPTFEFluidPowerSeals,togetherwithits fuIllineofrubberandpolyurethanesealingcomponents,give fluidpowerengineerstheabilitytoprocureafullsystemofseals fromonésource.ParkerPTFEFluidPowerSealsprovidethe addedbenefitthatcanonlybeofferedfromtheuniquephysical charactéristicsofPTFE.ThisPTFEFluidPowerSealCatalog providesadescriptionofParkersfullrangeofPTFEFluidPower SeaIsalongwiththepartnumberingandglanddesigndetails neededtospecifyParkerFluidPowerSealsinyourapplication. Engineering Excellence ParkerHannifinCorporationsEngineeredPoIymer Systems(EPS)DivisionhasadédicatedPTFEengineering teamstrategicallyfocusedonachievinginnovativesealing solutionsforthemostdemandingengineeringapplications.0ur applicationdesignengineersusestate-ofthe-ártCAD(2D3D modeling)systemstocustomfitinnovativesealingdesigns tomeetandexceedtheuniquestandardssetforthbyour customers. WPTWearGardTM tight-toIerance wearrings CTprofiIe bi-directional pistonseaI ODprofilerod bufferseal WRTWéarGardTM tight-tolerance wéarring BTprofile rodseal ADprofiIerodwiper Testing and VaIidation Finite Element AnaIysis EPSDivisionusesNon-linearFiniteElement AnaIysis(FEA)fordesignoptimizationduringits productdesigndeveIopmentcycle.UtilizingFEA streamlinestheprototypingphaseofsealdevelopment byimprovingperformancepredictabiIity,whichcosteffectivelyacceleratesspeedtomarket. CatalogEPS5360USA Advantages of PTFE Low Friction Thelowcoefficientoffriction(.06)ofPTFEmaterialresults fromlowinterfacialforcesbetweenitssurfaceandothermaterials thatcomeincontact.ThisbehaviorofPTFEmaterialeliminates anypossibilityofstick-slipeffectsindynamicsealingapplications. Wide Temperature Rangé (-450 F to 600 F -268 C to 315 C) PTFEshighmeltingpointandmorphologicalcharacteristics allowcomponentsmadefromtheresintobeusedcontinuouslyat servicetemperaturesto600F(315C).Abovethistemperature thecomponentsphysicalpropertiesmaytendtodecrease, causingheat-agingandmaterialdegradation.Thepolymeritself mightremainunaffectedifthetemperatureisinsufficientfor thermaldegradation.Forsealingcryogenicfluidsbelow-450F (-268C),specialdesignsusingPTFEandotherfluoropolymers areavailable. Chemical Compatibility TheintrapoIymerchainbondstrengthsofPTFEcompounds precludereactionwithmostchemicals,therebymakingthem chemicaIlyinertatelevatedtemperaturesandpressureswith virtuallyallindustrialchemicalsandsolvents. Temperature Cycling PTFEcompoundshavetheuniqueabiIitytoresistmaterial degradation,heat-agingandaIterationinphysicalproperties duringtemperaturecycling.Mostelastomersundergo compressionsetduringtemperaturecycIing,causingmaterial degradationinelastomericseals. High Surface Spéeds Material Development Láb Inaddition,ourMaterialDevelopment Labiséquippedtocarryouttesting formaterialcharacterizationsuch asFourierTransformInfrared(FTlR) spectrophotometer,thermalconductivity, Tribométer-PTFEweartesting,Differential ScanningCaIorimeter(DSC),deformation underIoad,etc. Ifyourapplicationdemandsunique materialspecifications,óurin-house chemistshavetheexpertiseandcapability toworkwithyouinspécifyingand validatingoptimalmaterialstomeetyour requirements. Enhancing Performance óf PTFE with FiIlers Theonlyrequirementforanadditivetoqualifyas afillerforPTFEisthatitshouldbeabletowithstand thésinteringtemperaturesofPTFE.Sinteringinvolves exposuretotemperaturescloseto700F(371C)for severalhours. Non-Filled PTFE 0100 Virgin PTFE VirginPTFEhasnofillersandisconsideredFDAand potablewatersafe.Fillersareusedtoenhancesome ofthephysicalpropertieswhenneeded. Filled PTFE 0102 Modified Virgin PTFE Pigmented.Samebasicpropertiesasvirgin,butwith increasedwearandcreepresistanceandlowergas permeability. Mineral Filled MineraIisidealforimprovedhighertemperaturesand offerslowabrasiontosoftsurfaces.PTFEwiththisfiller caneasiIybequalifiedtoFDAandotherfood-grade specifications. Ultimate Tensile Stréngth Elongation() 600 500 400 300 200 100 0 VirginUHMWHytrelPEEK PTFE Figure 2. Ultimate Elongation Parkér Hannifin Córporation, EPS Division TeI: 801-972-3000 Fax: 801-973-4019 Catalog EPS 5360USA Materials PTFE Materials -- Typical Physical Properties Table 3. Parker Material Codé Material Color TypicaI Applications amp; Déscription Service Temperature Rangé F (C) TensiIe Stréngth in psi at Bréak (bar) 4575 (316) 4600 (317) 4070 (281) Elongation in Hardness Shore D 0100 VirginPTFE White ExcellentforCryogenic applications.Goodfor gases. Lowercreep,reduced permeabilityandgoodwear resistance.
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