Almatec E 08 - Pulsation Dampe ET;ET-F

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ALMATECPULSATIONDAMPERS,ETSeriesandET‐FSeries
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The ALMATEC pulsation dampers series  ET and ET‐F represents the latest generation of active pulsation
dampers.TheyarespeciallydesignedtobeusedalongwithALMATECair‐operateddoublediaphragmpumps
oftheE‐Series.Ageneralaspecttobe
consideredis,thatapulsationdamperdecreasesthetotalcapacityof
thesystemdependingonthepointofoperation.
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Beforeputting anALMATECpulsationdamperintooperation,make sure,thatthematerials ofconstruction
areresistanttothechemicaltobepumped.Tocheckthis,theexactdampercodeis
required.Thiscode,the
serialnumberandtheyearofconstructionarenotedontheidentificationplatesonthedamperitself. 
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Exampleofthedampertypecode:
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ET  15 E A E  ‐ F
FlangeconnectionDIN(F)orANSI(Fw)
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Diaphragm  E EPDM
material:   N NBR
T
PTFE/EPDMcompound
T‐LPTFEconductive/EPDMcompound
T‐P PTFEmodified/EPDMcompound
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Materialofdamper  A PA
head:F PEconductive
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Materialofdamperhousing: E PE
F PEconductive
T PTFE
U PTFEconductive
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  Size,nominalconnectionsize:  10:3/8“,15:1/2“,25:1“,
40:11/2“,50:2“
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ALMATECpulsationdamper,ETseries
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Airsupplyconnection:ET10‐ET25:R1/8“,ET40/ET50:R1/4“
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Max.operatingpressure:  7bar/100psig
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Max.operatingtemperature: fordamperhousinginPE70°C/158°F
fordamperhousinginPTFEsizeET
10100°C/212°F,fortheothersizes
120°C/248°F(withdamperheadinPEconductive80°C/176°C)
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For flammable liquids as well as for applications in explosion protected areas, only dampers made of
conductive plastic materials (code F resp. U) may be used. It is not necessary to ground the damper
separately,asthe
damperisconnectedconductivelytotheE‐Seriespump,whichisconductiveandhastobe
groundeditself(pleaseseeATEXhintsonpage4).
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In general, pump and damper are dispatched completely mounted. Still,  they can be packed in separate
boxes,especially forthe biggersizes. Ifso, the
damperhasto bescrewed intothe threadatthetopof the
center housing carefully, but only until the damper is in contact with  the pump. Exceeded tightening may 
damagethethread.Besides,acorrectpositioningoftheO‐ring[10]withinthegroovehastobeensured.
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An ALMATEC
 ET‐damper can easily be attached to an E‐Series pump at any time without changes of the
piping,providedthatthepumpisconfiguratedwithproductportsbothhorizontally.Makesurethattheplug,
center housing (item 13 in the exploded view of the pump) is in the right
position. For pumps delivered