CENTRIFUGAL PUMP - Safety against explosion according to ... · FORM NO.: L850919GB REVISION: 05/2015 CENTRIFUGAL PUMP - Safety against explosion according to ATEX (94/9/EC) OPERATING

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.

GB

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

3412032

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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).


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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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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7.3 Replacing the motor


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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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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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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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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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

S PX Flow Technology Poland sp. z o.o.

Hermana Frankego 9

85-862 Bydgoszcz, Poland

P: (+48) 52 525 9900

F: (+48) 52 525 9909

SPX reserves the right to incorporate design and material changes

without notice or further obligation.

Design features, materials of construction and dimensional data,

as described in this bulletin, are provided for your information only

and should not be relied upon unless confirmed in writing. Please

contact your local sales representative for product availability in

your region.

For more information please visit www.spx.com.

ISSUED 05/2015 –

COPYRIGHT © 2015 SPX Corporation

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CENTRIFUGAL PUMP - Safety against explosion according to ... · FORM NO.: L850919GB REVISION: 05/2015 CENTRIFUGAL PUMP - Safety against explosion according to ATEX (94/9/EC) OPERATING