Almatec E 10 - Safety Instructions; Torque Values

10
Torquevalues
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Immediatelybeforeputtingthepumpintooperationaswellasaftersomehoursofpumping,
thehousingbolts[19]havetobefixedaccordingtothetorquedataofthefollowingschedules,
astheelementsofconstruction"settle".Thevalvestopsdischargevalve[9]andtheplugs
[11/13]
havetobefixedtoo.Asaremindertheairinlet[23]iscoveredbyacorresponding
stickeratdeliverycondition.Fixingallthesepartsisnecessaryaswellafterperiodsof
stoppage,attemperaturevariations,aftertransportanddismantlingthepump.Incaseof
temperaturevaryingbetw eenextremesorhigh
temperaturedifferencebetweentheli quidand
thesurrounding,thehousingboltsshouldbecontrolledmorefrequently(intervalproposals
areavailableonrequest).Thefollowingschedulesshowthetorquevaluesofthepumphousing
bolts,ofthedamperhousingbolts(whenusingapulsationdamperoftheET‐Series)andof
the
optionalflangeconnection(optionalequipmentcodesF3/F4/F5).
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Safetyinstructions
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 Installation,operation,andmaintenancebyqualifiedstaffonly.
 Beforestart‐upofthepumpanyoneshouldacquaintoneselfwiththeexplanationsofthechapter
troubleshooting(seepages16/17).Onlybythisthedefectquicklycanberealizedandeliminatedin
caseoftrouble.Problemswhichcannotbesolvedor
withanunknownreasonshouldbepassedonto
themanufacturer.
 Beforeanymaintenanceandserviceproceduresarisingonthepumporontheoptionalequipments,
thecompleteinstallationhastobeturnedoffandprotectedagainstaccidentalturnon.Thisis
possiblebyalockableemergencystopfor
theairsupplyofthepump.Additionaladangersign
againstrestartshouldbeattached.
 Pressuretestsoftheplantapumpisincludedinmayonlybecarriedoutwiththepumpdisconnected
fromthepressureonbothportsorbyusingthepressurethepumpdevelopswhileoperating.
The
loadofapressureintheplantmaydamagethepump.
 AODDpumpsmustnotbeoperatedwithapositivesuctionpressure.
 Dependingontheconditionsofoperation,theliquidconveyedmightescapefromthepumpthrough
themufflerincaseofadiaphragmrupture(inthis
casemufflerhastobereplaced).Forfurthersafety
requirementstheoptionalequipmentdiaphragmmonitoringandbarrierchambersystemare
recommended.
 Incaseofadiaphragmrupture,itmightbepossibleforthefluidpumpedtointrudeintotheairside
ofthepump.Inveryadverseconditions‐e.g.pressure
withinthefluidsystemduringstoppedair
supply‐thefluidmightaswellfinditswayintotheairsupplylines.Toprotectotherdeviceslike
pulsationdampersorevenpneumaticvalves,itisrecommendedtoprotecttheairsupplyline
accordingly,e.g.viaanon‐returnvalve.Thiswould
aswellavoidpollutingtheairsupplyline.
 Thestateofthemufflerhastobeinspectedregularly,asablockedmufflercanbeforcedoutofthe
pump.Ifthishappens,damagesofpropertiesand/orpersonscannotbeexcluded.
 Iftheproducttendstosettle,thepumphas
tobeflushedregularly.Forlargersolidsafilterhastobe
installedinthesuctionline.
Pumpsize E08 E10 E15 E25 E40 E50
Torquevaluesforhousingbolts‐Nm(ftlbs):
PEpumps
PTFEpumps
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‐
2(1.5)
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‐
4,5(3.3)
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8,5(6.3)
6,5(4.8)
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14(10.3)
11(8.1)
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18(13.3)
15(11.1)
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23(17)
19(14)
Dampersize ET10 ET15 ET25 ET40 ET50
Torquevaluesfordamperhousingbolts
Nm(ftlbs):  PEdamper
PTFEdamper
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‐
2(1.5)
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3(2.2)
3(2.2)
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6(4.4)
6(4.4)

10(7.4)
10(7.4)

11(8.1)
11(8.1)
Pumpsize E15 E25 E40 E50
Torquevaluesforflangeconnections‐Nm(ftlbs): 4(3) 5(3.7) 12(8.9) 15(11.1)