Graco Husky 2200 - Installation Procedures; General Installation Guidelines; Fastener Tightening Procedure; Reduce Cavitation Tips

Installation
Installation Installation
Installation
General General
General
Information Information
Information
TheTypicalInstallationshownisonlyaguidefor
selectingandinstallingsystemcomponents.Contact
yourGracodistributorforassistanceinplanninga
systemtosuityourneeds.AlwaysuseGenuine
GracoPartsandaccessories.Besureallaccessories
areadequatelysizedandpressureratedtomeetthe
system’srequirements.
Referencelettersinthetext,forexample(A),referto
thecalloutsinthe󰘰gures.
Variationsincolorbetweentheplasticcomponents
ofthispumparenormal.Colorvariationdoesnot
affecttheperformanceofthepump.
Tighten Tighten
Tighten
Fasteners Fasteners
Fasteners
Beforemountingandusingthepumpforthe󰘰rsttime,
checkandretorqueallexternalfasteners.Follow
TorqueInstructions,page16,orseethetorque
tagonyourpump.Afterthe󰘰rstdayofoperation,
retorquethefasteners.
Tips Tips
Tips
to to
to
Reduce Reduce
Reduce
Cavitation Cavitation
Cavitation
CavitationinanAODDpumpistheformationand
collapseofbubblesinthepumpedliquid.Frequent
orexcessivecavitationcancauseseriousdamage,
includingpittingandearlywearof󰘱uidchambers,
balls,andseats.Itmayresultinreducedef󰘰ciencyof
thepump.Cavitationdamageandreducedef󰘰ciency
bothresultinincreasedoperatingcosts.
Cavitationdependsonthevaporpressureofthe
pumpedliquid,thesystemsuctionpressure,andthe
velocitypressure.Itcanbereducedbychangingany
ofthesefactors.
1.Reducevaporpressure:Decreasethe
temperatureofthepumpedliquid.
2.Increasesuctionpressure:
a.Lowertheinstalledpositionofthepump
relativetotheliquidlevelinthesupply.
b.Reducethefrictionlengthofthesuction
piping.Rememberthat󰘰ttingsaddfriction
lengthtothepiping.Reducethenumberof
󰘰ttingstoreducethefrictionlength.
c.Increasethesizeofthesuctionpiping.
NOTE: NOTE:
NOTE:
Besuretheinlet󰘱uidpressuredoesnot
exceed25%oftheoutletworkingpressure.
3.Reduceliquidvelocity:Slowthecyclicrateof
thepump.
Pumpedliquidviscosityisalsoveryimportantbut
normallyiscontrolledbyfactorsthatareprocess
dependentandcannotbechangedtoreduce
cavitation.Viscousliquidsaremoredif󰘰culttopump
andmorepronetocavitation.
Gracorecommendstakingalltheabovefactors
intoaccountinsystemdesign.Tomaintainpump
ef󰘰ciency,supplyonlyenoughairpressuretothe
pumptoachievetherequired󰘱ow.
Gracodistributorscansupplysitespeci󰘰c
suggestionstoimprovepumpperformanceand
reduceoperatingcosts.
Mount Mount
Mount
The The
The
Pump Pump
Pump
Toavoidseriousinjuryordeathfromtoxic󰘱uidor
fumes:
•Ventilatetoaremotearea.Thepump
exhaustairmaycontaincontaminants.See
AirExhaustVentilation,page11.
•Nevermoveorliftapumpunderpressure.If
dropped,the󰘱uidsectionmayrupture.Always
followthePressureReliefProcedure,page14,
beforemovingorliftingthepump.
1.Besurethemountingsurfacecansupportthe
weightofthepump,hoses,andaccessories,as
wellasthestresscausedduringoperation.
2.Forallmountings,besurethepumpissecured
withscrewsthroughthemountingfeet.
3.Makesurethesurfaceis󰘱atandthatthepump
doesn’twobble.
4.Foreaseofoperationandservice,mountthe
pumpsoairvalve,airinlet,󰘱uidinletand󰘱uid
outletportsareeasilyaccessible.
5.ProlongedexposuretoUVradiationwilldegrade
naturalpolypropylenecomponentsofthepumps.
Topreventpotentialinjuryorequipmentdamage,
donotexposepumportheplasticcomponents
todirectsunlightforprolongedperiods.
8 3A2578E
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