CENTRIFUGAL PUMP - Safety against explosion according to ... · FORM NO.: L850919GB REVISION:...
Transcript of CENTRIFUGAL PUMP - Safety against explosion according to ... · FORM NO.: L850919GB REVISION:...
FOR M NO.: L850919G B R EVI S ION: 05/2015
CE NTR I FUGAL PU M P - Safety against explosion according to ATEX (94/9/ EC)
OPE RATI NG MAN UAL
W+
R EAD AN D U N D E R STAN D TH I S MAN UAL PR IOR TO OPE RATI NG OR S E RVICI NG TH I S PROD UCT.
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Form no.: L850919GB– revision 05/2015
Table of contents Page
For spare parts, see separate spare parts list.
1. General description 21.1 Intended use 2
2. Sectional drawing 3
3. Warnings 4
4. Introduction 84.1 The W+ range 84.2 The W+ pump, standard and auxiliary equipment 84.3 Identificationofpumpmodels 84.4 Identificationofmotormodels 94.5 Identificationofhazardclass 94.6 Handling and transport 94.7 Weights 10
5. Installation of pump 125.1 Positioning 125.2 Lining up the pipe system 125.3 Power supply 125.4 Liquidsupplyforflushedshaftseal 125.5 Connectingsteamandsteamcondensateforasepticuse 12
6. Start-up and operation 136.1 Checkingthepumpforforeignmaterial 136.2 Checkingthepump 146.3 Starting the pump 146.4 Flushing liquid 14
7. Service and maintenance 157.1 Checkingtheshaftseal 157.2 Replacingtheshaftseal 157.3 Replacingthemotor 177.4 Recommendedinventoryofspareparts 18
8. Technical data 19
8.1 Soundpressureandsoundeffectlevel 198.2 MaximumpermissibleoutletpressureforW+pumps 208.3 Tightening torques 208.4 PermissiblemediatemperatureforW+pumps 208.5 Cleaningrecommendation 21
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1. General description
Thisoperatingmanualshouldbereadcarefullybythecompetentoperatingandmaintenancepersonnel.
Itmustbepointedoutthatwewillnotacceptanyliabilityfordamageorfaultsresultingfromfailingtocomplywiththisoperatingmanual.
Descriptionsanddatagivenhereinaresubjecttotechnicalchanges.
1.1 Intended useTheW+centrifugalpumpisexclusivelyintendedforpumpingliquids,especiallyinfoodandbeverageinstallations.
Refrainfromusingthepumpinamannerwhichexceedsthescopeandspecificationsstatedbelow.
Anyuseexceedingthemarginsandspecificationssetforthisconsideredtobenotintended.
Themanufacturerisnotliableforanydamageresultingfromsuchactivities.Theuserwillbearthefullrisk.
Caution! Improperuseofthepumpleadsto: - damage -leakage -destruction -potentialfailuresintheproductionprocess
Warning! ThepumpissuitableforuseinhazardousareasasidentifiedonthepumpaccordingtoDirective94/9/EC.
Itmustbeensuredthatthegroups,thecategoryandthetemperatureclassofthepumpcomplyatleastwiththeminimumrequirementsoftheoperating environment!
The symbol draws your attention to important
directionswhichmustbeobservedwhenoperating the pump in explosive environments.
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2. Sectional drawing
1 Pump housing2 Cap nut3 O-ring4 Impeller6 O-ring7 Backplate8 Locatingpin9 Clamp ring10 O-ring11 Shaft14 Extensionframe17 Spacerflange
5.1 Fasteningkitforsinglemech.seal
5.3 Pressure ring5.4 Drain pipe5.5 O-ring5.6 Stationarysealface5.7 Rotarysealface5.8 Pin5.9 Fasteningkitfordouble
mech.seal5.10 O-ring5.11 Pressure ring
Section1:SinglemechanicalshaftsealforshaftsofØ25andØ35Section2:DoublemechanicalshaftsealforshaftsofØ25andØ35Section3:SinglemechanicalshaftsealforshaftsofØ55Section4:DoublemechanicalshaftsealforshaftsofØ55
Section 1
Section 3
Section 2
Section 4
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3. Warnings
General warnings for the operation of APV W+ pumps
1. Readthroughtheinstructionsbeforeinstallingthepumpandstartingitup.Ifindoubt,contactyourlocalSPXFlowTechnologyrepresentative.
2. Checkthatthespecificationsofthemotorandmotorcontrolunitarecorrect.Thisappliesinparticulartoapplicationswhichcarryariskofexplosion.
3. Observethatapumpmaybeunstableandmaytilttotheforeontoitsinlet port when having a relatively small motor and being assembled onbracketsinsteadofbeingequippedwithaframewithadjustablefeet.Becarefulduringtheinstallationofsuchapump.(Forthisreason, the W+50/600 pump is equipped with an anti-tilting unit.)
4. Donotstartthepumpbeforeallpipeconnectionshavebeenfittedcarefullyandtightened.Specialprecautionsmustbetakenwhenthepumpisusedtopumphotand/orhazardousliquids.Insuchcasesfollowthelocalregulationsforpersonalsafetywhenworkingwiththeseproducts.
5. Donotstartthepumpbeforethemotorshroudorshaftguardhasbeensecurelyfitted.
6. Thepumpcontainsrotatingparts.Neverputyourhands,fingersorobjectsintoapumpwhileitisinoperation.
7. Nevertouchtheshroudduringoperation,asitcanbecomeveryhot.
8. Nevertouchthepumpbodyduringoperationifthepumpisbeingusedforhotmedia,asthereisariskofbeingburnt.
9. Ifthepumpisoperatingwithliquidmediabuthasnocirculation,theliquidwillheatupandmayturnintovapour,whichcouldcauseanexplosion.
10. Alwaysremoveallassemblyandauxiliarytoolsfromthepumpbeforestarting it up.
11. Neverhosedownorcleantheelectricmotordirectlywithwaterorcleaningfluid.
12. Neverliftthepumpattheshroud,asitisnotdesignedtocarrytheweightofthemotor.Removetheshroudbeforeliftingthepump.Alwaysusesecurelyfittedliftingstrapswhenliftingwithacraneorsimilarliftinggear.
13. Neverdismantlethepumpbeforethemotorhasbeendisconnectedfromthepowersupply.Removethefusesanddisconnectthecablefromthemotorterminalbox.
14. Theinstallationofallelectricalpartsmustbecarriedoutbyqualifiedpersonnel.
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3. Warnings
15. Neverdismantlethepumpuntilthepipesystemhasbeendrained.Rememberthatliquidwillalwayscollectinthepumpbody.Ifthepumpistobeusedforhotand/orhazardousliquids,specialprecautionsmustbetaken.Insuchcasesfollowthelocalregulationsforpersonalsafetywhenworkingwiththeseproducts.
16. Thefollowingvaluesspecifiedforthepermissiblepressuremustnotbeexceeded:Max. 18 bar W+10/8, W+22/20, W+30/80, W+35/55, W+35/35,
W+110/130Max. 14 bar W+25/210, W+30/120,W+50/600, W+50/8,
W+55/35, W+55/60, W+60/110, W+65/350, W+70/40, W+80/80
Thea.m.valuesarealsovalidforthecorrespondingmodelsintheWa+ and Wi+ ranges. It is important to remember that the maximum outletpressurevaluesapplywhenwaterisatatemperatureof20°C.
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3. Warnings
Warnings for the operation of APV W+ pumps in accordance with the ATEX Directive
1. The below stated warnings apply additionally to the general warnings(seepage4).Therefore,observebothwarningnotices.
2. Anyspecialrequirementsandnationallegislationrelativetotheuseoftools,e.g.theriskofignitionincaseofsparkformationthroughatoolfallingdown,mustbeobserved.
3. Itmustbeensuredthatthegroup,thecategoryandthetemperatureclassofthepumpaswellasofthemotorcomplyatleastwiththeminimumrequirementsoftheoperatingenvironment.(Note!Thepumpclassificationcandeviatefromtheclassificationofthemotor.)Verifyifthecapacityofthemotorissufficientforeverypumpoperationasamotoroverloadleadstoincreasedsurfacetemperatures.
4. Observeallwarningsandinstructionsinthemotormanual.Ensurethat the motor and all supporting plates are earthed.
5. Usinginflammablefluidsinconnectionwiththepump,specialmeasuresunderconsiderationofnationallegislationcanberequiredbeforemaintenanceofthepump.
6. Ifthepumpisusedforinflammableliquids,thepumpoperatormustconsidertheconsequencesofaleakageofinflammablegases/steamsintheareaoftheshaftsealandinothersealareasorthepenetrationofairintothepumpliquid.
Itisrecommendedtousedoublemechanicalshaftsealswithnoninflammableflushingorsealingliquidstopreventtheexplosionriskthroughleakages.Moreover,thepotentialcollectionofinflammablegases/steamsinthepumporinthepipingsystemmustbeconsideredwithregardtotheinstallationofaleakage-appropriate exhaust system.
7. Thesurfacetemperatureofthemotordependsonthe(air)cooling.Thepumpmustbeinstalledinsuchawaythatthehotairescapingfromothermotorsorequipmentisnotconveyedintothedirectionofthe pump motor.
8. Observetheinstructionsinthemanuals(motorandpump)inordertopreventtheincreaseintemperaturethroughtheshaftsealrunningdryorinsufficientlubricationofthemotorbearings. Ifitcannotbeensuredthatpartsdonotrundry,theshaftsealmustbeflushed(doublemechanicalshaftseal).Forsealswithflushing,followtheoperatingspecificationsforflushingconditionsinthemanual.Theconditionsmustbeobservedtoensurethattheycomplywiththeoperatingspecifications.
9. Inordertoeliminatetheriskofsparkformationduetoapossiblespringfractureintheshaftseal,thesealspringmustbereplacedeverytwoyearsorafter10,000operatinghours.
10. Observethattheshaftsealrunningdryleadstoextremetemperatureincreaseswhichcandestroythesealringandwhich
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3. Warnings
Oncemore:Ifitcannotbeensuredthatpartsdonotrundry,theshaftsealmustbeflushed(doublemechanicalshaftseal).Forsealswithflushing,followtheoperatingspecificationsforflushingconditionsinthemanual.Theflushingconditionsmustbeobservedtoensurethattheycomplywiththeoperatingspecifications.
Additional information for the operation of APV W+ pumps in dusty environment
APVW+pumpsarestandardcentrifugalpumpswhichcanbeusedforseveralapplicationsinthefoodandbeverageindustryaswellasinthepharmaceuticalandchemicalindustry.
Theindividualpumpscanbeoperatedwithdiversefluidsatdifferenttemperatures,withdifferentviscosities(Newtonianaswellasnon-Newtonian)andwithdifferentvolumeflowsandpressureranges.Therespectivespecificoperatingconditionshavefactualeffectsonthesurfacetemperatureofthepump.
ThedeliveryoftheAPVW+pumpiseffectedinaccordancewiththeATEXDirective94/9/ECandallowsfortheuseinexplosiveenvironmentsofthezones1and2(gasinatmosphere)aswellasofthezones21and22(dustinatmosphere).
AccordingtotherelevantENstandardEN13463-1:2001,suppliersofoperatingmaterialoftheequipmentgroupIIandcategory2G,2Dor2GDmustspecifythefactualmaximumsurfacetemperature(excludingpossibledustlayer).
Thisisverydifficultwithoutthoroughknowledgeintheassemblyofthepumpanditsapplicationandoperatingconditions.Therefore,thepumpoperatormustobservethetemperatureclassindicatedonthepump.
Therealoperatingconditions(producttemperature,ambienttemperature,flashpointofproduct)oftherespectivepumpformthebasisofthesetemperatureclasses.
Formoredetails,thepumpoperatorcanaddresstothelocalSPXFlowTechnologydealer.
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SPX Flow TechnologyHermana Frankego 9, 85-862 Bydgoszcz POLAND
XXXXXX
W+22/20 125
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4. Introduction
4.1 The W+ rangeThismanualcoversthestandardversionsoftheW+pumpaswellastheasepticversions:Wa+andpumpswithaninducer(Wi+).Checkthepump'snameplatetodeterminewhetheryouhaveoneofthesemodels.TheWHP+andW+140/50aredescribedinaseparatemanualwhichissuppliedwiththepump.TheWK+(pedestalpumpversion)isdescribedinasupplementarymanual.
4.2 The W+ pump, standard and auxiliary equipmentStandard options:
- Withorwithoutmotorcover. - Withframeandfeetorfirmsupports. - Withshaftsealincarbon/SiCorSiC/SiC. - Witho-ringsinEPDMorFPM(Viton). - Withsinglemechanicalordoublemechanicalseal,fittedforwater-
flushedorsteam-flushedshaftseal(Wa+)
Additional options: - Heating/coolingjacket. - Casing drain. - Soundabsorbingmotorcover. - Pumpcart. - Inducer(Wi+). - DoubleO-ringsealforpumphousing,fittedforsterileflushing
purposes. - Heavydutyclampringwhichincreasesthepump'smaximum
permissibleoutletpressureto25bar(availableforW+30/120,W+55/35,W+55/60,W+60/110,W+70/40)orto20bar(availableforW+80/80).
- W+pumpscanbesuppliedwithallstandardweldedferrules,e.g.unions,clamprings,flanges.
4.3 Identification of pump modelsAnameplateasshowninFig.1isfittedontheextensionframe.ExampleTypeW+22/20: Specifiesthepumpmodel(W+22/20).125: Indicatesthediameteroftheimpeller.Serialno.: IndicatesthepumpIDnumber.Orderno.: SpecifiestheSPXFTordernumber.Year: Showstheyearofmanufacture.Theemptyfieldcanbeusedtoidentifythepumpwithinanoverallsystem.
Fig. 1
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4. Introduction
4.4 Identification of motor modelsAnameplateasshowninFig.2isfittedonthemotor.Theplateindicatesthemotortypeandheightofconstruction(pos.1),theATEXidentification(pos.2),motorcapacity(kW)(pos.3)andspeed.
4.5 Identification of hazard classAdditionallytothenameplatefig.1,thepumphasanATEXidentificationindicatingtheoperationalconditionsinexplosiveenvironments.
II - equipment group2-equipmentcategory(zone1,2,21and22)G - atmosphere with gases and steamsD - atmosphere with dustsT3-temperatureclasstomax.<200°CT4-temperatureclasstomax.<135°C
4.6 Handling and TransportActwithcautionwhenliftingthepump.Allpartswithaweightofmorethan20kgmustbehandledwithasuitablehoistingdevice.Useacrane,forklifttruckorothersuitableliftinggear,andalwaysuse2hoistingbeltsinconjunctionwiththis.(Fig.3).Placethehoistingbeltsaroundtherearpartofthemotorandaroundtheextensionframe.Takecarethatthebeltsareevenlyloadedwhenthepumpislifted.
Caution! Alwaysuse2hoistingbeltsandneverfastenatthefrontofthepumpbody.
Fig. 2
1 2
3
Fig. 2a
Fig. 3
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4. Introduction
4.7 Weights
Pump type
EEx de/d - Motors80 90 100 112 132 160 180 200 225 250 280
0.75 kW 1.1 kW
1.5 kW 2.2 kW
3.0 kW 4.0 kW5.5 kW 7.5 kW
11.0 kW 15.0 kW 18.5 kW
22.0 kW30.0 kW 37.0 kW
45.0 kW 55.0 kW75.0 kW 90.0 kW
W+10/8 37 37 --- --- --- --- --- --- --- --- --- ---
W+22/20 45 45
50 51 62 91 105
110 --- --- --- --- --- ---
W+30/80 --- 70 71 82 111 125
130
206 209 228
--- --- --- --- ---
W+25/210* --- --- --- --- ---257 266 284
304 369 389 454 --- ---
W+35/35 --- 53 54 65 94 108
113
189 192 227
--- --- --- --- ---
W+35/55 --- 68 68 80 109 123
128
203 205 223
--- --- --- --- ---
W+30/120 --- 76 77 88 116 131
136
214 217 235
262 327 347 --- --- ---
W+50/600 --- --- --- --- --- --- 387 452 472 537 607 1014
1053
W+50/8 --- 62 63 74 103 117
122 --- --- --- --- --- ---
W+55/35 --- 71 74 87 116 130
135
216 218 237
--- --- --- --- ---
W+55/60 --- 78 79 92 121 136
141
216 218 236
263 328 348 --- --- ---
W+60/110 --- 85 86 97 127 141
146
221 223 241
274 339 359 424 --- ---
W+65/350 --- --- --- --- 180 185
260 262 280
318 383 403 468 538 945
984
W+70/40 --- 92 93 105 132 147
152
227 229 248
281 346 366 --- --- ---
W+80/80 --- 100 100 110 140 155
160
235 237 255
288 353 373 438 508 ---
W+110/130 --- --- 126 154 166 171
249 255 273
316 381401 466 536 943
982
* 1500 rpm only
Theweightsmayvarydependingonaccessoriesandfittings,andarethereforeintendedonlyasareferencevalueforhandling,transportandpackagingactivities.
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4. Introduction
4.7 Weights
Pump type
EEx e - Motors80 90 100 112 132 160 180 200 225 250 280
0.75 kW 1.1 kW
1.5 kW 2.2 kW
3.0 kW 4.0 kW5.5 kW 7.5 kW
11.0 kW 15.0 kW 18.5 kW
22.0 kW30.0 kW 37.0 kW
45.0 kW 55.0 kW75.0 kW 90.0 kW
W+10/8 22 21 --- --- --- --- --- --- --- --- --- ---
W+22/20 30 31
3337 41 54 62
65 --- --- --- --- --- ---
W+30/80 --- 53 57 61 74 82
85
146 148 170
--- --- --- --- ---
W+25/210* --- --- --- --- ---198 200 226
253 288 333 438 --- ---
W+35/35 --- 36 40 44 57 65
68
129 131 149
--- --- --- --- ---
W+35/55 --- 51 52 59 72 80
83
143145 165
--- --- --- --- ---
W+30/120 --- 59 63 67 79 88
91
154 156177
209 244 289 --- --- ---
W+50/600 --- --- --- --- --- --- 338 373 418 523 653 893
978
W+50/8 --- 45 49 53 66 73
76 --- --- --- --- --- ---
W+55/35 --- 54 60 66 79 87
90
156 158 179
--- --- --- --- ---
W+55/60 --- 61 65 71 84 93
96
156 158 178
211 246 291 --- --- ---
W+60/110 --- 68 72 76 90 94
99
161 163 183
216 251 296 401 --- ---
W+65/350 --- --- --- --- 137 140
200 202 222
255 290 335 440 570 810
985
W+70/40 --- 75 79 83 95 104
107
167 169190
222 257 302 --- --- ---
W+80/80 --- 83 84 89 103 112
115
175 177 197
230 265 310 415 545 ---
W+110/130 --- --- 105 117 123 126
189 191 215
244 281326 445 575 715
800
* 1500 rpm only
Theweightsmayvarydependingonaccessoriesandfittings,andarethereforeintendedonlyasareferencevalueforhandling,transportandpackagingactivities.
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5. Installation of pump
5.1 PositioningThefollowingmustbeobserved: Thepumpmustbepositionedsothatthesuctionpipeisasshortaspossibleandthereisaslopinggradienttowardsthesuctionportofthe pump.Keepthenumberofvalves,bendsandtee-piecesonthesuctionside to an absolute minimum.Theremustbesufficientspacearoundthepumpforpipingandaccessformaintenance.
5.2 Lining up the pipe systemEnsure that the pipe system is adequately underpinned with pipe supportssothatthepumpbodyisnotsubjecttostrainfromortheweightofthepipesystem.
Caution! Duringthesuctionprocess,thepumpmaytendtovibrate.Apipesupportshouldbeplacedclosetothepumpsuctiontopreventpipeworkvibrationcreatingexcessivenoise.
5.3 Power supplyThemotormustbeconnectedviaacontrolcabinettothenetworkincompliancewiththelocalregulations.Moreover,themotormustbeconnectedinaccordancewiththeinstructionsindicatedintheinnersideoftheconnectingboxlidofthemotor.Themotorshouldbeconnectedinsuchawaythatthemotorandthereforetheimpellerareanti-clockwisewhenviewedfromthefrontinthedirectionofthesuctionportofthepumpbody.(Fig.4).
Theintegrationintotheoperationalpotentialequalizationmustbeprovided(groundingofpump).
5.4 Liquid supply for flushed shaft sealPumpswithaflushedshaftsealarefittedwithtwoPTFEhoseconnectorsonthesealingflange.Thehoseconnectorsare1/8inchandfit6.0mmhoses.Therequiredflowquantityamountsto15–30l/h.The maximum permissible pressure is 7 bar.
Thehoseconnectionshouldalwaysbepositionedverticallywiththefluidinletbelowandtheoutletabove(Fig.5).Fluidconsumptioncanbelimitedbyinstallingasolenoidvalveonthesupplyside.Theopen/closefunctionofthesolenoidvalvecanbecontrolledbythepump'sstart/stopsequence.Donotusesteamorsteamcondensateontheconnectionforflushingliquids.Ifyouwishtousesteamasasealant,aspecialasepticpipeconnectormustbeused.Forconnectorssee5.5.
AtcomponentsofthetemperatureclassT4,thePTFEhosesmustbereplacedbyfirmpipelines!
5.5 Connecting steam and steam condensate for aseptic useWhenstaticdoublesealsareused,theconnectionforsteamorsteamcondensateatthepumpbodyisprovidedwithfittingsfor8 mm stainless steel pipes.Steamofupto150°Cand5barcanbeused.
Fig. 4
Fig. 5
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6. Start-up and operation
Beforestartingthepump,dismantleandcleanthesuctionpipe. Anyforeignmaterialinthepumpshouldberemoved.
6.1 Checking the pump for foreign material
Beforeanymechanicalworkatthepump,theoperatormustensurethatanexplosiveenvironmentdoesnotexist(measurementtoexcludeexistenceandoccurrenceofgas,dust,etc.).Alternatively,usenon-sparkingtools!
Removethepumpbodyasdescribedbelow.Thesectionaldrawing(page3)istobeusedforreferencepurposes.
1. Disconnectthepowersupply.
2. Removethepumpbody(items1)byunscrewingtheclampring(item9a)orbodyscrews,andcarefullyextractfromthebody.
3. Turntheimpeller(item4)toensurethatthereisnoforeignmaterialbehind it.
4. Removeanyforeignmaterialfrominsidethepump.
5. Whenthepumpbodyiscleanandfreeofforeignmaterial,reassemblethe pump.
Mountthepumpbodyasdescribedbelow:
6. Checkthatthelocatingpin(item8),whichisinstalledinthetopofthebackplate,fitswiththedetentinthepumpbodyandcarefully(toavoiddamagetotheO-ring)pressthepumpbody(item1)insoitcoverstheO-ring(item6).Thenfastenwiththeclampring(item9a)orbodyscrewsandapplythecorrecttighteningtorque.
M10: max.35Nm(25ft-lb)
7. Checkthatthepipeunionshavebeentightenedproperlyandthatthepipesupportshavebeenfitted.
Tofacilitatethefittingofthefrontcoverandpumphousing,werecommendthattheO-ringislubricatedwithathinlayeroffood-friendly,acid-freegreaseorsoap.
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6. Start-up and operation
6.2 Checking the pumpTocheckthatthepumpisworkingsatisfactorily,pourwaterintothepumpandstartitmomentarily.Checkthedirectionofrotation.Fig.6.Listenforanyunusualnoises.Inpumpswithwater-flushedorsteam-flushedshaftseals,thesealchambermustbefilledwithwater/steam.
Caution! Neverallowthepumptorunwithoutliquid,asthiswillruintheshaftseal.
6.3 Starting the pump
Checkthestatusofelectricaldevicesandelectroniccontrolsystemssuchassensors,dataprocessors,frequencyconverters,etc.fortheirpermissibilityaccordingtotheATEXDirective.
Checkthefollowingbeforestartingthepump:
- Thattheshaftguardhasbeenfittedproperly. - Thatthereisunobstructedaccessforliquidandthatthepumpis
primed. - Thatthevalveonthedischargesideisclosed.
Thevalveonthedischargesideisclosedduringstart-uptopreventthemotorfromoverloading,butshouldbeopenedagainassoonasthe pump has been started.
Note! Thepumpshouldnotbeleftrunningtoolongwithoutpumping(typically15minutesifthepumpedliquidisnothot),becauseitwillgetwarmand the priming liquid will evaporate.
6.4 Flushing liquidInpumpswithaflushedshaftseal,checkthatthesupplyinletfortheflushingmediumisopenandthattheflowofthemediumisadequate(approx.15-30litres/hour).
Fig. 6
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7. Service and maintenance
7.1 Checking the shaft sealCheckthepump'sshaftsealforleaksonaregularbasis.Iftheshaftsealisleaking,replaceitoritsrelevantpartsasdescribedbelow.
7.2 Replacing the shaft sealThesectionaldrawing(page3)showsthepositionandconstructionoftheshaftseal(applyingbothtoordinarysealsandsealswithliquid/steamflushing).
Toreplacetheshaftsealitisnecessarytodismantlethepump.Followthestepsdescribedbelowandrefertothesectionaldrawing(page3).
Beforeanymechanicalworkatthepump,theoperatormustensurethatanexplosiveenvironmentdoesnotexist(measurementtoexcludeexistenceandoccurrenceofgas,dust,etc.).Alternatively,usenon-sparkingtools!
1. Disconnectthepowersupplyinthemotorisolatorbyremovingthefusesanddisconnectingthecables.
2. Turnoffthesteamandflushingliquidsupply.
3. Closethepumpsuctionanddischargepointanddrainthepumphousing.Ifthepumpisusedforhotand/oraggressiveliquids,specialprecautionsmustbetaken.Insuchcases,observethelocalregulationsforpersonalprotectionwhenworkingwiththeseproducts.
4. Opentheclampring(item9)orthehousingscrewsoncetheinletand outlet pipes have been properly isolated. Dismantlethepumphousing(item1)andremovetheimpeller(item.4).
5. Takethestationarysealface(item5.6)installedinthebackplate(item7)outwithyourfingers.
6. Removetheo-ring(item5.5)fromthestationarysealface.
7. Useyourfingerstoremovetherotarysealface(item5.7)fittedintheimpeller(item4).
8. Removetheo-ring(item5.5)fromtherotarysealface.
9. Cleanthechambersofthestationaryandrotarysealfacewithairor water.
9a Therearstationarysealface(item5.6)ismountedonthepressurering*(item5.11).Therotarysealface(item5.7)ismountedontheshaft(item11).Theseareremovedinthesamewayasthefrontsealcomponents.*TheW+50/600pumphas2identicalpressurerings.
Dismantling the pump
Dismantling the shaft seal
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7. Service and maintenance
10. ChecktheO-ringsforsignsofstiffness,lackofelasticity,brittlenessand/orchemicalcorrosion.Replacewornordamagedparts.
11. Checkthestationaryring(item5.6)androtaryring(item5.7)forsignsofwear.Wearsurfacesmustbecompletelyfreeofcracks.Ifthisisnotthecase,boththestationaryringandtherotaryringmustbereplaced.
11aInthecaseofwater-flushedshaftsealsandasepticshaftseals,checktherearsealrings(item5.6,5.7)forwear,andreplaceifnecessary.
Inordertoeliminatetheriskofsparkformationduetoapossiblespringfractureintheshaftseal,thesealspringmustbereplacedeverytwoyearsorafter10,000operatinghours.
12. Fitthenewo-ringsonthestationarysealfaceandrotarysealface.
Caution! Remember to moisten these with water.
13. Fittherotarysealfaceontheimpellerwithoutusingtools.
Note! Thenotchintherotarysealfacemustbeinstalledsothatitfitswiththedrivingpin(item5.8)intheimpeller hub.
13aInthecaseofdoublemechanicalshaftseals,alsofitarotarysealface(item5.7)witho-ring(item5.5)inthelocationontheshaft–again without using tools.
14. Fitthestationarysealfaceinthebackplatewithoutusingtools.
Note! Installthestationarysealfacesothatitfitswiththepininthebackplate.Checkthatthestationarysealfaceispositionedsothatitslidesbackandfortheasilywithinthebackplate.
14aWhenfittingnewdoublemechanicalshaftseals,removethedrainpipe(item5.4)beforefittingtheminthepressurering(item5.9)orbackplate(item7).* The W+50/600 pump is not equipped with a drain pipe.
15. Afterfitting,cleanthesurfacessubjecttowear.
15aFordoublemechanicalshaftseals,re-mountthebackplate(item7).
16. Fittheimpeller(item4).Remembertousethepropertighteningtorque. M10: 45Nm(33ft-lb) M14: 70Nm(52ft-lb) M20: 200Nm(148ft-lb)
17. Checkthatthelocatingpin(item8)inthetopofthebackplatefitswith the detent in the pump body. To prevent damage to the O-ring, carefullypressthepumpbody(item1)insothatitcoverstheO-ring(item6).Thenfastentheclampring(item9).
Remember to use the proper tightening torque:M10: max.35Nm(25ft-lb)
Checking parts for wear
Fitting
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Form no.: L850919GB– revision 05/2015
7. Service and maintenance
7.3 Replacing the motor
Beforeanymechanicalworkatthepump,theoperatormustensurethatanexplosiveenvironmentdoesnotexist(measurementtoexcludeexistenceandoccurrenceofgas,dust,etc.).Alternatively,usenon-sparkingtools!
ThestandardmotoroftheW+pumphasalockedfrontbearing.Ifthemotorisreplaced,thenewmotormustalsohavealockedfrontbearing.Themotorbearingisenclosedandpermanentlylubricated.
A"smallflange"(B34)forframesizesanda"largeflange"(B35)incaseoflargeconstructions.
Whenreplacingthemotor,followtheinstructionsbelow.Forthereplacementofbearings,seethemotorsupplier'sserviceinstructions.
1. Switchoffthepowersupply,andthendisconnectthepumpandmotorfromthesystem.
2. Remove the pump body. See 7.2, paragraph 1-4.
3. Dismantle the impeller.
4. Removethemotorshroudand,ifpossible,placethepumpverticallyonthemotor'sfancover.Fig.7.
5. Releasethefourmotorflangescrewsandremovethem(Fig.7).
6. Liftthebackplate(item7)andextensionframe(whicharestillboltedtogether)offtheshaft.SeeFig.10. Removethespacerflange(item17)(wherefitte).
7. SeeFig.8.Loosenthescrewsatthebaseoftheshaft,removetheshaftandreplacethemotor.
8. SeeFig.9.Beforemountingthenewpumpshaft,removeanydirtandgreasefromthemotorshaftandthebase'sinternalclampingsurfaces.Looselymountthepumpshaft.Positionthebalanceholeoverthekeyway.
9. Fitthebackplateandextensionframeovertheshaft.
10. Tighten the bolts.
11. Standthepumpbackonitslegs/brackets.
12. Fittheimpellerandsecureitwiththecapnut/inducer.
Remember to use the proper tightening torque:M10: 45Nm(33ft-lb)M14: 70Nm(52ft-lb)M20: 200Nm(148ft-lb)
Fig. 7
Fig. 8
Fig. 9
Rearflange
Screw
Extensionframe
Motor
Shaft
Screw
Motor
Keyway
Motorshaft
Balancehole
Pumpshaft
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Form no.: L850919GB– revision 05/2015
7. Service and maintenance
13. Placetheplasticstaragainsttheimpeller.Fig.10.
14. Fitthepump/screwhousingandfastenwiththeclampring.
15. Pushtheshaftforwarduntiltheimpelleristouchingtheplasticstar.See Fig. 11.
16. Tightentheshaftscrews(item11). Remember to use the proper tightening torque: M8: 30Nm(22ft-lb) M10: 55Nm(41ft-lb) M12: 80Nm(59ft-lb) M16: 180Nm(132ft-lb)
17. Remove the star by pulling it out through the inlet.
7.4 Recommended inventory of spare parts
Seal kitsThesealkitfortheW+pumpconsistsofthewearpartsforthepumpasspecifiedinthesparepartslist.
Numberofpumpsinservice0–5 5–20 >20
Sealkits number number kits/10pumps
Normaloperation 2 3 1Specialneeds 3 6 2
Service kitsTheservicekitconsistsofseveralmainpumpcomponentswhicharenotconsideredwearpartsbutmayneverthelessneedtobereplaced:theshaft,impeller,capnutandfixingkit.
Numberofpumpsinservice0–5 5–20 >20
Servicekits number number kits/10pumps
Normaloperation 0 1 1Specialneeds 1 2 1
Fig. 10
Impeller
Plasticstar
Pump body
Fig. 11
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Form no.: L850919GB– revision 05/2015
8. Technical data
8.1 Sound pressure and sound effect levelMeasurementshavebeencarriedoutinaccordancewithISO3743,Grade2andISO3746,Grade3.Tolerance:±3dB.
LpAindBreferstothesoundpressurelevelatadistanceofonemetrefromthesurfaceofthepumpataheightof1.6mabovefloorlevel(cf.ECDirective(89/392/EEC).
LwAindicatesthesoundpowerlevel.OperatingconditionsA,BandCaredefinedasfollows:
a) Nominalflowandmax.permissibleoperatingpressureb) Nominalflowand60%operatingpressurec) 60%flowandmax.permissibleoperatingpressure
Thenominalflowandmax.permissibleoperatingpressureinthecaseoftheW+55/60,forexample,are60m³/hratanoperatingpressureof5.5bar,andsoon.
ThisinformationonlyappliesifthemotorusedisanABBaluminiummotorandthesizeofthemotormatchesthepowerrequirementofthe pump.
Thenoiselevelmayincreaseconsiderablyifreducers(reduction/expansionfittings)aremountedontheinlet/outlet.
The values shown apply when the pumps operate at 2900 rpm and thereisashroudoverthemotor.Ifthepumpsoperateat1450rpm,thevaluesarereducedbyapprox.20dB.ThevaluesfortheW+25/210 apply at 1450 rpm.
Operating conditions
LpA LwAA B C A B C
W+10/8 65 62 60 79 77 74W+22/20 67 65 61 81 79 75W+30/80 75 73 68 89 87 82
W+25/210 69 68 64 83 82 78W+35/35 69 67 64 83 81 78W+35/55 72 70 67 86 84 81
W+30/120 76 74 72 90 88 86W+50/8 69 68 64 83 82 78
W+50/600 75 75 73 89 89 87W+55/35 69 68 68 83 82 82W+55/60 74 70 68 88 84 82W+60/110 76 74 72 87 85 84W+65/350 86 88 82 100 102 98W+70/40 75 69 69 89 83 83W+80/80 75 73 72 89 87 86
W+110/130 79 76 76 93 90 90
Please note that the sound emitted by a pump may vary considerably.Itdependsonthepumpdesign(size/speed/shroud/installation)aswellasontheliquidtypeandpumpingconditions.
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Form no.: L850919GB– revision 05/2015
8. Technical data
8.2 Maximum permissible outlet pressure for W+ pumpsThemaximumpumpoutletpressurespecifiedbelowmustnotbeexceeded(appliestowaterat20°C).
Max. 18 bar: W+10/8, W+22/20, W+30/80, W+35/55, W+35/35, W+110/130
Max. 14 bar: W+25/210, W+30/120, W+50/600, W+50/8, W+55/35, W+55/60, W+60/110, W+65/350, W+70/40, W+80/80
TheabovevaluesalsoapplytothecorrespondingWa+andWi+models.
8.3 Tightening torquesRequiredtorquestotightenthepumpshaftonthemotorshaft:M8: 30Nm(22ft-lb)M10: 55Nm(41ft-lb)M12: 80Nm(59ft-lb)M16: 180Nm(132ft-lb)
Caution! Ensurethatthekeygrooveinthemotorshaftcanbeseenthroughtheholeinthestubshaft. Fig. 12.
Requiredtorquetotightenthecapnutandtheinducer:M10: 45Nm(33ft-lb)M14: 70Nm(52ft-lb)M20: 200Nm(148ft-lb)
Requiredtorquetotightentheclampconnectionatthepumpbodyandbodycover:M10: max.35Nm(25ft-lb)
8.4 Permissible media temperatures for W+ pumpsThemaximumsurface/mediatemperaturesconformtotheindicatedtemperatureclasses.
TemperatureclassT3max.<200°CsurfacetemperatureTemperatureclassT3max.<160°Cmediatemperature
Useofdoublemechanicalshaftsealwithflushingliquid(cooling)atmediatemperatures>150°C(T3)
TemperatureclassT4max.<135°CsurfacetemperatureTemperatureclassT4max.<100°Cmediatemperature
Useofdoublemechanicalshaftsealwithflushingliquid(cooling)atmediatemperatures>80°C(T4)
Fig. 12
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Form no.: L850919GB– revision 05/2015
8. Technical data
Thetypeofflushingliquid(temperature,pressure,quantity)dependsontheapplication.ContactyourlocalSPXFlowTechnologydealer.
8.5 Cleaning recommendationThepartsofthepumpswhichbecomewetasaresultofmediaarecleanedusingthecleaningagentintheconnectedpipelines.Cleaningagents,timesandcyclesmustbemodifiedaccordingtoindividualapplicationdependingonthedegreeandnatureofcontamination.Verifythecompatibilityoftheindividuallyselectedcleaningprocessesandagentswiththesealmaterialsbeingused.
Subjecttochange.
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W+CE NTR I FUGAL PU M P
Original operating manual
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