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Pistonassembly Inordertomeettheneedofmodernpetroleumdrillingtechnology,newmudpumpfitting weredecelopedbytsingtaozhifengpetroleumequipmentco.,ltdthroughcooperationwith chinapetroleumuniversity(huadong)whichhavegoodpropertiesofhigh-temperature, highpressureresistance,highantifrictionandantisulfurcorrosion.Suchaspistonassembly, salveassemblyandotherproduct. ThepistonassemblywhichproducedbyQingdaozhifengpetroleumequipmentco.,ltd havefourserial,morethan40typesofpiston.thebodymaterialarecastedbythe45#or 55Mnalloysteel,andthepistoncupareusedimportedhighmolecularmaterial. OurcompanyistheoriginalfactoryinQingdaoPetroleumMachineryFactory, andin2008passedAmericanpetroleuminstitutequalitymanagementsystemofpreference APISPECQ1(REGISRATIONNO.Q1-0637)andISO/TS29001(REGISRATIONNO.TS-0469) and ISO9001(REGISRATIONNO.0885)internationalqualitysystem certification. Firstset Mainpartmaterial:pistoncupisusedtheNBRJSR-220SfromJapan. Reinforcement::materialofthebaseofthepistoncupisNylonN-12 Characteristics:ordinaryanti-compressionpropertyandordinarytemperaturetolerance,wearresistanceproperty Application:pumppressurearound18MPa,temperatureofcyclingmud≤60°C, Secondset Mainpartmaterial:pistoncupJSR-220S Reinforcement:pistoncupbase:30layershighstrengthfibercloth Characteristics:goodanti-compression,anti-abrasionandtemperaturetoleranceproperty Application:pumppressurearound20Mpa,temperatureofcyclingmud≤80°C Thirdset Mainpartmaterials:pistoncup:JSR-220S,reinforcedbyhighstrengthfibers Reinforcement:pistoncupbase:highmolecularcomposite Characteristics:betteranti-compression,anti-abrasionandtemperaturetoleranceproperty,longservicelife Application:pumppressure≥20Mpa,temperatureofcyclingmud≥80°C Fourthset Mainpartmaterials:pistoncup:hydrogenatedNBRoradvancedhightemperaturetolerance andantiabrasionmaterialsreinforcedbyadditives Reinforcement:pistoncupbase:20layershighstrengthfiberclothorhighmolecularcomposite Characteristics:excellentanti-compression,abrasivewearand hightemperaturetolerance property,goodcombinationpropertyat80-150°C Application:pumppressure≥26Mpa,temperatureofcyclingmud≥80°C,especiallyforceramiccylindersleeveandhighpressuremudpump! Serial No. Pistoncup reinfor- cement pump pressure /MPa Maximum operation tempe-rature /°C Working tempe-rature /°C Abrasion cm³ /1.61km Servicelife /h(pumppr.≤18Mpa, temp≤60°C) Servicelife /h(pumppr. ≥20Mpa, temp≥60-80°C) Servicelife /h (pumppr.≥26Mpa, temp≥80°C) Anti-sulfur corrosion remarks 1 Nylon ≥18 60 50 0.06 200 150 80 ordinary 2 Fibercloth ≥18 80 60 0.02 400 250 150 Good 3 TPF-2 ≥20 120 60-85 0.01 600 400 250 excellent Applicable toceramic cylinder sleeve 4 High-tempe-rature andhigh-pressure ≥26 260 150-260 0.03 600 450 300 excellent Applicable toceramic cylinder sleeve F1600HL F-2200HL piston assembly