Flowserve Single Inside Pusher Type Seal Manuel d'utilisateur télécharger pdf (Page 5)

theyareinstalledintherotatingface.Avoidnickingorpinchingeither

lipoftheU-ring.UsebothU-cuprings,theyworktogethertoforman

effectiveseal.

3.6 SetthebackofthespringholderatreferencemarkB,Figure1,

andtightensetscrewsrmlyandevenly.Therotatingcomponent

assemblyisnowintheproperpositiontoprovidethecorrectsetting

andspringcompressionfornalassembly.

3.7 Lightly lubricate O-ring or Duraex stationary face gaskets.

3.8 Press the stationary face into the gland (exiblymountedface

only).Usehandpressureonly.WhereafacehasanO-ringmounting

onthebackshoulder,itisusuallybettertonestthisO-ringintothe

glandcavityandthenpushthefaceintothenestedO-ring.

3.9 Wipe the seal facescleanwithalcoholbeforecompleting

equipmentassembly.Sealfacesshouldnotbelubricated, 

butshouldbeleftcleananddry.

3.10 Position the glandtothefaceofthesealhousing.Besurethe

glandpilotisproperlyengaged.Tighten the gland stud nuts

evenly,crossstaggertheadjustmentofthenuts.Followthe

equipmentmanufacturer'srecommendationsforglandstudnut

torque.Intheabsenceofrecommendations,glandnutsshould

onlybetorquedtoestablishaleaktightsealattheglandgasket.

Properglandboltadjustmentisespeciallyimportantwithclamp

stylestationaryfaceswhereexcessivetorquemaydamagetheface.

3.11 Assemble the pump.

3.12 See Operational Recommendationsbeforestartingpump.

4 Vertical In-line Pumps

Forbackpulloutdesignsandshaftdesignsnotincorporatingarigid

spacercouplinguseprocedure1,asforsingleendsuctionvertical

splitcasepumps.

Forshaftdesignsincorporatingarigidspacercoupling:

4.1 Scribe mark A ontheshaftorsleevetolineupwiththefaceofthe

sealhousing.Somepumpdesignsincorporateashaftorsleeve

withverticalorhorizontalpinsforsettinganddrivingtheseal.In

thesecasesnosealsettingmeasurementsarerequired.

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Flowserve Single Inside Pusher Type Seal Manuel d'utilisateur Page 5