Almatec E 08 - Additional Temperature Hints; Providing Spare Parts

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Additionaltemperaturehints
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Thetem peratureandpressurelimitationslistedonpage5aresolelybasedonmechanicaltemperaturelimits
ofthehousingmaterialused.Dependingonthefluidpumped,themaximumsafeoperatingtemperatureof
thehousingmaterialcanbereducedsignificantly. 
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Ageneralaspectoflowertemperaturesis,that
below0°C(32°F)cold‐brittlingoftheelastomersusedwithin
thepumpscanresultsinacceleratedwear.Regardingthehousingmaterials,pleasenotethatPE‐otherthan
PP‐keeps itsmechanical strengthsat low temperaturesand PTFE keeps mechanicallystable as wellfor  an
extended temperature range. ALMATEC pumps of  the
 E‐Series can therefore be operated safely as well
within low‐temperature installations: However, with liquids below 0°C (32°F) accelerated wear of internal
partshastobeaccepted.Moreover,freezing,boggingorcrystallisationofthefluidpumpedmustbeavoided,
especiallywithinthepump.Emptyingthepumpviathedrainage
system(optionalequipmentcodeR)maybe
ausefultooltoassistthis.
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Please consider,  that viscosity and specific gravity of most fluids change with temperature (most often
increasing at lower temperature). Depending on the application, this fact may not only result in result in a
reducedflowrate,thepump
mayevenbeunabletoprimethethickerand/or“heavier“fluidanymore.
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Incaseofvaryingapplicati ontemperatures,thehousingbolttensionhastobecontrolledverythoroughly,as
variationslikethesecanchangetheeffectivetensionofthehousingboltsviathedifferentthermalexpansion
characteristicsofsingle.
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Providingspareparts
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Werecommendhavingsparepartkits“S”onstock.Theseincludetherelevantsparepartsforyourpump.