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515201410PROCESSEQUIPMENT&PIPINGVol.51No.5Oct.20142014-04-102014-06-131967OPTFE710025OPTFEOPTFEOOTQ050.3TH136A1009-3281201405-0062-004O(O)OO[1]OO[2]NBRFKMVMQEPDMCRBUPTFENRO200O60OPTFEPTFEPTFEPTFE300OPTFEOPTFE1/10PTFE[3]PTFEOO1PTFEO[-].OOOOy%k%z%,O[4][5]1%~3%5%OO12%~18%20%~25%O201410·63·PTFEOTable1ComparisonofPTFEandrubberOringsOPTFEO120O250()OOOOOOOOO13%~20%15%~25%O1[BO]OFig.1thegroovesinstallationdiagram2O(NBR)O(IRHDA)705[1].PTFEOPTFEOPTFEOORa0.8Ra0.4PTFEOTable2therecommendedgroovedepth,widthratioandcompressionratioofstandardOringOdo/mmB/mm/mm%B/mm/mm%1.80.082.41.331.3226.72.61.441.2828.92.650.093.61.352.024.53.81.431.9725.63.550.104.81.352.918.35.01.412.7522.55.30.137.11.344.3118.67.31.384.2420.07.000.159.51.355.8516.49.71.385.7218.3.OPTFE515·64·OBO15%d0OOd1OVo,,dcOd1Vc=1.15VoOVod1OB3BTable3CalculatedvaluesofgroovewidthBOdo/mmPTFEOB/mmd1/mmVo/mm3Vc/mm3/mmB/mm1.80.0850414.1476.21.282.232.02.650.0915026453041.81.973.183.02.83.550.102006329.572792.754.124.05.30.1340028091323054.245.976.07.000.156708185194128.75.727.738.0.PTFEOB2B315%()PTFEOPTFEO,PTFEPTFE10~1210-5/(25~250)10~20PTFE20PTFE10050~180PTFEPTFEPTFEOPTFEB3PTFEO15MPaO2OPTFEO3OPTFE()190~260180~2004PTFEO4PTFEOTable4TherecommendeddesignsizeofPTFEOringgrooveOdo/mmPTFEO/mmTB1.80.081.282.02.650.091.973.02.83.550.102.754.05.30.134.246.07.000.155.728.0[1]GB/T3452.12005,O[S].[2].[M].4.200210-312,313.[3].[J].200526353.[4]GB/T3452.32005,O[S].[5].O[J].201232227-28.[6],,,.O[J].,2012(6):1-4.[7],,,.[J].,2013(7):605-610.201410·65·[8],,,.[J].,2012(5):583-587.[9],,.[J].,2013,50(1):38-41.[10].[J].,2012(9):9-13.[11].[J].,2013,50(5):41-44.BriefAnalysisofDimensionofGrooveinPTFEOShapeWasherUsedinChemicalPumpYANGWenjunXi'anPump&ValveCo.,Ltd,Xi'an,710025,ChinaAbstract:ThroughthecalculationandanalysisofkeyelementsinthedesignofgrooveinstandardizedOshaperubberwasher,theresultswerecomparedwiththepropertiesofPTFEOshapewasher.ThenthegrooveinPTFEOwasherwasanalyzedandcalculated,fromwhichtheappropriatesizeofthegrooveforsealingwasproposed.Keywords:Oshapewasher;swell;temperature;staticseal;compression;groove2014919DUPREZBOISSEAUAPI52kt/a1005PTA.OPTFE