Flowserve Single Inside Pusher Type Seal User Manual download pdf (Page 6)

4.2 Scribe mark B atthesealsettingpointshownenclosedina 

rectangularboxontheassemblydrawingincludedwiththeseal. 

Thissealsettingdimensionismeasuredfromthefaceofthe 

sealhousingtothebackofthespringholder.Thebackoftheseal

springholderwillbelocatedatthispoint.

4.3 Lubricate the shaftorsleevelightlywithsiliconelubricantprovided

withthesealbeforeinstallinganysealparts.

4.4 Install the rotating seal componentsintotheboreoftherotating

face.

4.5 Install the rotating seal componentpartsontheshaftorsleevein

thepropersequence.HandlePTFEU-cupringsandDurate

rotatingfacegasketswithextremecare.PTFEU-cupringsmustbe

assembledindividuallyandnotpushedontheshaftorsleevewhile

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

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

formaneffectiveseal.

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

andtightensetscrewsrmlyandevenly.Incaseswherethespring

holderisprovidedwithdriveslotstoengagewiththepinsthereare

nosetscrewstotighten.Installtherotatingcomponentsoverthe

shaftorsleeveandintotheboreofthesealhousingbeingsurethe

slotsinthespringholderengagethedrivepins.Therotating

componentassemblyisnowintheproperpositiontoprovidethe

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

4.7 Lightly lubricate O-ring or Duraex stationary face mountings.

4.8 Press the stationary face into the gland (exiblymountedfaces

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stationaryfaceinto

thenestedO-ring.

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

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

butshouldbeleftcleananddry.

4.10 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

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Flowserve Single Inside Pusher Type Seal User Manual Page 6