valve stem packing for oxygen service · 2018. 6. 20. · gas association (cga) standard (cga...
TRANSCRIPT
VALVESTEMPACKINGFOROXYGENSERVICE
Carlos D. GirãoManaging Director
Teadit Packings & [email protected]
Luiz P. RomanoR&D Manager
Teadit Industria e [email protected]
Agenda• Background• ProductionRequirements• Testing
– ThermalAnalysis– ExtractionAnalysis
• BAMTesting• EmissionsEvaluation• Conclusions
Background• OxygenServiceProducts• UsualPractice• NewApproach
Production Requirements• DedicatedFacilities• OperatorTraining• DedicatedEquipment
– FromYarntoBraidingtoDieForming
• Packaging• Traceability
Production Facilities- Producedinacontrolledenvironment
- Productfreeofcontaminationbygrease/oil,unwantedsubstancesormicroorganism.
Dedicated EquipmentCleanequipmentforoxygenprocess(CGAG-4.1-2009)
• Knitting
• Braiding• Finishing
• Packaging
Control
SolventCleanig
Vacuuming
Packaging
LabelingProtectionrecontamination
Steamwatercleaning
Personalsafety
Alloperationalstepsmustcomplywiththecompressed
gasassociation(CGA)standard(CGAG-4.1-2009Cleaningequipmentforoxygenservice,6thed.):
Packaging
Thermal AnalysisThermogravimetricanalyzer(TGA)- modelTAQ500
Extraction Testing
Sample
OX
Sample
Regular
1stDetermination 0,08 1,26
2nd Determination 0,09 1,29
3th Determination 0,07 1,35
Average(%) 0,08 1,30
Specificationislessthan0.5wt%ofoilsororganicsubstances
BAM Testing• GaseousO2 test
– Pressureburst:uptoxxxbar(reaction)– Temperature:Specified
• AIT– Pressure:uptoignition(orabovedefinedmax.)– Temperature:upto500oC
• LiquidO2
• FallingHammer–mmhigh
BAMTestResultsSummary
Packingtestedforgaseousoxygenandforliquidoxygenservice.
Forliquidoxygenservicenopressurelimit.
MAXIMUMTEMPERATURE MAXIMUMOXYGENPRESSURE
UP60C 210BAR>60UPTO300C 140BAR
Emissions Evaluation
Conclusion
With extreme care in all operational steps whichincludes tough controls for production, storage,distribution and use, comply with thecompressed gas association (CGA) standard(CGA G-4.1-2009 Cleaning equipment for oxygenservice), is possible to produced packing for hightemperature and pressure oxygen service.
Thanks!
VALVESTEMPACKINGFOROXYGENSERVICE
Carlos D. GirãoManaging Director
Teadit Packing & [email protected]
Luiz P. RomanoR&D Manager
Teadit Industria e [email protected]