ASTM_D_6439_-_11_2017.pdf

Designation:D643911(Reapproved 2017)Standard Guide forCleaning,Flushing,and Purification of Steam,Gas,andHydroelectric Turbine Lubrication Systems1This standard is issued under the fixed designation D6439;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONOptimum turbine system reliability requires a well designed lubricating system and use of a goodlubricant that is free of contaminants.Achieving this requires use of proper purification methods toensure that the oil is free of detrimental contaminants.In addition,it requires an ongoing monitoringprogram to ensure that the oil quality is within specifications and that corrective action is taken tominimize contaminant generation and ingression.The benefits of purification of an operatinglubrication system can be significantly reduced if the lubricating systems are not initially cleaned toa level that will prevent component damage on initial start up after manufacturing or rebuilding.Care and thorough cleaning are required to minimize and remove contaminants during fabrication,rebuilding,or installation,or combination thereof.Because contaminants will remain from theseprocesses,it is necessary to flush and purify the system to remove them prior to startup.Ongoingpurification is required to maintain pure oil during operation.In new systems,the emphasis is on theremoval of contaminants introduced during manufacture,storage,field fabrication,and installation.Inoperational systems,the emphasis is on the removal of contaminants that are generated or carried induring operation,and by malfunctions that occur during operation or contaminants that are introducedduring overhaul,or both.1.Scope1.1 This guide covers types of contaminants,oil purificationdevices,contamination monitoring,contamination control dur-ing building or refurbishing of turbine systems,lubricationsystem flushing,and maintenance of pure lubrication oil.1.2 To obtain maximum operating life and reliability,orlubricants and system,it is vital that the turbine lubricationsystem has pure oil.This guide is intended to aid the equipmentmanufacturer,installer,and turbine operator in coordinatingtheir efforts to obtain and maintain clean lubrication andcontrol systems.These systems may be on land or marineturbine generators and propulsion and mechanical drive equip-ment.This guide is generalized due to variations in the type ofequipment,builders practices,and operating conditions.1.3 This guide primarily addresses petroleum based lubri-cating oil.For systems using nonpetroleum based fluids,thisguide may not be appropriate.For nonpetroleum products,consult the equipment and fluid manufacturers.1.4 This guide is applicable to both large and small lubri-cation systems.Some equipment specified herein,however,may not be appropriate for all systems.Moreover,in situationswhere specific guidelines and procedures are provided by theequipment manufacturer,such procedures should take prece-dence over the recommendations of this guide.1.5 This standard does not purport to address the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:21This guide is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.C0.01 on Turbine Oil Monitoring,Problems and Systems.Current edition approved May 1,2017.Published July 2017.Originally approvedin 1999.Last previous edition approved in 2011 as D6439 11.DOI:10.1520/D6439-11R17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 D445 Test Method for Kinematic Viscosity