Flowserve Tandem Seal Manual do Utilizador descarregar pdf (Página 5)

2.15 Seattheglandring1andglandringgasketGtothefaceoftheseal

chamberbytighteningthenutsorboltsevenly.Besuretheglandringisnot

cockedandtightenthenutsorboltsonlyenoughtosealattheglandring

gasket.Excessivetighteningoftheglandringnutsorboltswillcausedistor-

tionthatwillbetransmittedtotherunningfaces.Followproperglandgasket

torquinginstructions.

3 Operational Recommendations

3.1 Theoutersealmustbesuppliedwithanexternalsealingbufferliquid.This

buffershouldbeintroducedtothecavitybetweentheinnerandouterseals

andcirculatedbyforcedcirculation(Figure3)atapressurebelowthe

primarysealchamberpressure.

3.2 FlowserveCorporationmanufacturesbothpackagedcirculationsystems

andcomponents,Figure4.ContactyournearestFlowserverepresentative.

3.3 Besurethesealingliquidtotheoutersealisavailableandallenvironmen-

talcontrolsfortheinnersealareoperationalbeforestartingtheprocess

equipment.

3.4 Ifthesealisrunninghot,checktoseethattheglandringisnotrubbingthe

shaft.Theseclearancescanbecheckedbyusingafeelergauge.

3.5 Ifthereisaleakageattheglandonstart-up,itmaybecorrectedbyadjust-

ingtheglandforbetteralignment.

4 Repairs

Thisproductisaprecisionsealingdevice.Thedesignanddimensiontolerances

arecriticaltosealperformance.OnlypartssuppliedbyFlowserveshouldbeused

torepairaseal.TheseareavailablefromnumerousFlowservestockingloca-

tions.Toorderreplacementparts,refertothepartcodenumberandB/Mnumber.

Aspareback-upsealshouldbestockedtoreducerepairtime.Thefollowing

partscanalsobestockedforemergencyneeds.

 2 Inserts C Springs

 3 SealRings G Gaskets

 6 InsertMountings P ShaftPackings

   S SetScrews

WhensealsarereturnedtoFlowserveforrepair,decontaminate the seal

assemblyandincludeanordermarked"Repair or Replace." A signed

certicate of decontaminationmustbeattached.A Material Safety Data

Sheet (MSDS) must be enclosedforanyproductthatcameincontactwiththe

seal.Thesealassemblywillbeinspectedand,ifrepairable,itwillberebuilt,

tested,andreturned.

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