渗透堵塞测试仪使用说明书

PermeabilityPluggingTesterwithLCM

Receiver,6000psi

#171-193-6K:115Volt#171-193-6K-1:230Volt

InstructionManual

Updated6/14/2019Ver.4

OFITestingEquipment,Inc.

11302SteeplecrestDr.·Houston,Texas·77065·U.S.A.Tele:832.320.7300·Fax:713.880.9886·

©CopyrightOFITE2017

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TableofContents

Intro2Description2Specifications2

Components3

Safety5

QuickStart7

Preparation10

CellAssembly11

Testing16

Data19

CellCapAssembly20

PistonAssembly21

Maintenance22

Diagrams24PermeabilityPluggingTester24

TestCell25

WarrantyandReturnPolicy26

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Intro

DescriptionSpecifications

ThePermeabilityPluggingTester(PPT)isamodificationofthestandard500mLHTHPFilterpress.Itmaybeusedinthefieldorinalaboratoryenvironment.Theinstrumentisusefulforperformingfiltrationtestsonpluggingmaterialswithouttheinterferenceofparticlessettlingonthefiltermediumduringtheheatupprocess.ThePPTisveryusefulinpredictinghowadrillingfluidcanformalowpermeabilityfiltercaketosealoffdepleted,underpressuredintervalsandhelppreventdifferentialsticking.TypicaldifferentialpressuresaremuchhigherthanthoseseeninstandardHTHPtesting.

ThepressurecellissimilartothoseseeninstandardHTHPfiltrationtesting,butitisinvertedwiththefiltermediumandthebackpressurereceiverontopoftheassembly.Itispressurizedwithhydraulicoilandahandpump.Afloatingpistonseparatestheoilfromthetestfluidinthecell.Thecellhasamaximumpressureratingof6,000psi.

Bothendcapsaredesignedtoaccepta1/4"NPTfitting.Theinlet,orbottom,capisfittedwithaquick-connectfortheconnectiontothehydraulicpressuremanifold.Thestandardhydraulicpressuremanifoldsareequippedwithareliefvalve.

TheLCMreceiverismountedontopofthecell.

Weight:61lbs.(27.7kg)

Dimensions:15"×25"×42"(38.1×63.5×106.7cm)

ShippingWeight:90lbs.(40.8kg)

ShippingDimensions:30"×18"×17"(76.2×45.7×43.2cm)

800WHeater

MaximumTemperature:500°F(260°C)

MaximumPressure:6,000PSI(41.4MPa)

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Components

#153-14GraduatedCylinder,50mL×1mL,Glass

#154-20ThermometerwithMetalDial,8"Stem,DualScale:

50°–500°F/0°–250°C

#165-44-2AntiSeizeCompound,Silver,7gPouch

#170-04COPressureUnit

2

#170-13-3O-ringforCell,Viton75D,Qty:16

#170-17O-ringforValveStem,Viton75D,Qty:6

#170-19FilterPaper,2½"(6.35cm),SpeciallyHardenedforFilter

Presses

#170-53CeramicFilterDisk,15D,50µm,Qty:10

#171-00HeatingJacket(115Volt)

#171-01HeatingJacket(230Volt)

#171-23-1SafetyPinwithLanyard

#171-90-156”CrescentAdjustableWrench

#171-190-057O-ringforValveStem,Viton90D,Qty:16

#171-190-060O-ringforCell,Viton90D,Qty:24

#171-190-061O-ringforPiston,Viton90D,Qty:12

#171-193-STestCell,StainlessSteel

#120-910-028O-ringforRuptureDisk,Viton75D,Qty:2#130-81-040RetainingRing,Qty:2

#170-13-3O-ringforCell,Viton75D,Qty:4

#170-17O-ringforValveStem,Viton75D,Qty:4#171-95T-handleforPiston

#171-190-020-SCellBody

#171-190-023LockingRing,Qty:2

#171-190-024-SPiston

#171-190-029CellCapWrench

#171-190-038A-SCellCap,Out,forCeramicDisks,1/4"NPT,316

StainlessSteel

#171-190-039SetScrewforPiston

#171-190-051-SCellCap,In,NoMesh,1/4"NPT,17-4PH#171-190-055HexKeyT-Handle9"

#171-190-056O-ringforPistonBleedPort,Viton90D,Green#171-190-057O-ringforValveStem,Viton90D,Green,Qty:4#171-190-058O-ringforRuptureDisk,Viton90D,Green,Qty:2#171-190-060O-ringforCell,Viton90D,Green,Qty:4#171-190-061O-ringforPiston,Viton90D,Green,Qty:2#171-193-504RuptureDisk,6500psi

#171-84-016HexNipple,1/4"NPT×2.5"

#171-90-07HexNipple,1/4"NPT

#171-900-025O-ringforPiston,Qty:2

#171-95T-handleForPiston

#171-99O-ringforPiston,Viton70D,Qty:2#500-SS-4-HCGHexCoupler,1/4"FNPT

#700-100-096O-ringforPistonBleedPort,Viton75D

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InletPressuring:

#120-00-059StreetElbow,1/4"NPT

#120-70-1-057Fitting,PortConnector,1/4"

#120-78-045Fitting,MalePortConnector,1/4"#140-50-4ReducingBushing,3/8"Male×¼"FNPT#144-15ReducingBushing,¼"MNPT×1/8"FNPT#145-00-001Tee,¼"NPT

#171-27Hose,6Feet

#171-90-07HexNipple

#171-96HandPump

#171-96-1HydraulicOil,1Quart

#171-98BallValveforInletPressureLine,¼"#171-190-062Gauge,2.5",0–6000PSI,¼"#171-193-501QuickConnectFitting,Male,1/4"NPT#171-193-502QuickConnectFitting,Female,1/4”NPT#171-193-503HexNipple,1/4"NPT×4"#171-193-505PressureReliefValve

#500-SS-4-HCGFitting,Hex,Couple,1/4"FNPT

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#171-193-101

#170-16#170-32#171-190-057#171-84-010#171-84-011#171-84-012#171-84-014#171-84-015#171-90-11#171-90-14#500-350-003#500-350-004

LCMReceiver

ValveStem

NeedleValve,Male

O-ringforValveStem,Viton90DReceiverBody

BottomCap

TopCap

Filter

O-ringforReceiverCap,Viton75DFemaleElbow,1/8”NPT

HoseBarb,1/8”NPT×1/4”

VCOFitting,Female

VCOFitting,Male

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Optional:

#170-33CellCapRemovalTool#170-40CarryingToolforHTHPCell#171-06SafetyShield

SafetyReadthismanualcarefullybeforeattemptingtousetheequipment.Improper

usecanresultininjuryordamagetotheequipment.

Temperature

Theheatingjacket,testcell,andpressureassemblieswillbeveryhotduringtesting.Handlethesecomponentswithcare.Nevertouchhotcomponentswithoutwearingprotectiveclothing.

Atelevatedtemperatures,thefluidinthetestcellwillexpand.Neverfillthetestcellcompletelywithfluid.Alwaysleavesomevoidspacetoallowforthermalexpansion.Refertopage

16

forrecommendedfillvolumes.

Pressure

AlwayspressurizewitheitherCarbonDioxideorNitrogen.DonotuseNitrousOxide(NO),Oxygen(O),orcompressedair.Thesegassesaredangerous

22

atelevatedtemperatures.

Themaximumworkingpressureofthetestcell(6,000PSI/41.2MPa)ismarkedonthecellbodyandcap.Neverexceedthispressure.

Equipment

Inspectallo-ringsbeforeeverytest.Discardanythatshowsignsofdamageorwear.Looksfornicks,cuts,orbrittleo-rings.Twosetsofo-ringsareincludedwiththeFilterPress.ThefirstsetismadefromViton75D.Theseo-ringsareblackandshouldbeusedfortestsupto400°Fonly.ThesecondsetismadefromViton90D.Theseo-ringsaregreenandshouldbeusedfortestsupto500°F.

CellCorrosion

Testfluidsunderhightempreatureandpressurecancorrodethecellbodyandcaps.Carefullyinspectthecellbodyandcallsforcorrosionbeforeandaftereachtest.

Somematerialsaremoresusceptibletocorrosionthanother.Also,somefluidsandadditivesaremorecorrosivethanothers.OFITEoffersavarietyofcellmaterialsfordifferentlevelsofcorrosionresistanceandcost.

Pump

ForsafeoperationoftheHydraulicPumpPressurizationsystem,makesurethepressurehasbeenreleasedandthegaugeonthepumpreadszerobefore:

Attemptingtodisconnectthepressurehosefromthecellatthequick-connect.

Attemptingtoremovethecellfromtheheatingjacket.

ReallocatingormovingthePPTinthelaboratory.

Refillingthehydraulicpump.

Performinganymaintenanceincludingtighteningleakingfittingsonthepump,hydraulicfittings,orcellassembly.

Whenrefillingorrepairingthehydraulicsystem,makesureanyspilledoiliscleaned.Oilonthefloorisveryslipperyandcancausefallsandinjury.Oilspillsonthebenchcanaccumulateandbecomeafirehazard.

QuickStart1.Placethethermometerintheheatingjacket.

Preheattheheatingjacketto10°F(6°C)abovethetesttemperature.Thepilotlightwillturnonatthetargettemperature.

Soakaceramicdiskinbasefluidforatleast10minutesbeforetesting.

Inspectallo-rings.Replaceanythatshowsignsofdamageorwear.

Applygreasetoallo-rings.

Assemblybothcellcapsandthepiston.Placeo-ringsinthegroovesaroundthecapandpiston.

Placeano-ringontheshoulderinsidethecellontheendmarked“IN”.

Applygreasetothethreadsofthecellcapsandvalvestems.

Screwtheinletcellcapassemblyintothecellbodyandtightenitcom-pletely.

Pushintheredknobontheheatingjacket.Placethecellintheheatingjacketwiththeinletsidepointingdown.

Screwtheinletpressureassemblyintotheinletcellcap.

Screwthet-handleintothepiston.

Pushthepistoninsidethecellagainsttheinletcellcap.Tightenthesetscrewonthepistonbleedvalve.

Connecttheinletpressuremanifoldtotheinletpressureassembly.

Opentheballvalveonthemanifoldandclosethepressurereleasevalveonthepump.

Strokethepumpuntilthet-handlerisesabout1.5"(3.8cm).

Unscrewthet-handlefromthepiston.

Pourthetestfluidintothecellallthewayuptotheo-ringshoulder.

Placeano-ringontheshoulderinsidethecellbody.

Placeaceramicdiskontopoftheo-ring.

Screwthecellcapassemblyintothecellbodyandtightenitcompletely.

ConnecttheLCMbottomcapassemblytothecellcapassembly.

Makesurethefilterisinplaceinsidethereceiverbottomcap.

Pourwaterintotheholeinthereceiverbottomcap.

Opentheoutletvalvetoallowexcesswatertodrain,thenclosetheoutletvalve.

Applygreasetothereceivercapo-ringsandplaceonearoundeachcap.

Screwthereceivertopcapontooneendofthereceiverbody.

Screwthereceiverbodyontothebottomreceivercap.

Screwthevalvestemintotheportonthereceivertopcap.

AttachtheCOPressureAssemblytothetopvalvestemandsecureit2

withasafetypin.

Pullouttheredknobontheheatingjacketandlowerthecell.Rotatethecelluntilitseats.

Movethethermometertothecellbody.

PlaceaCObulbintheCOpressureassembly.Setthepressuretotheappropriatebackpressureforyourtest.22

Strokethepumptoapplythesamepressuretothecell.

Whenthecellhasreachedthetesttemperature,strokethepumptoapplytheworkingtestpressuretothecell.

CollectfiltratebyopeningtheneedlevalveontheLCMReceiver.

Attheendofthetest,turnofftheheatingjacket.

Allowthecelltocool.

ClosetheregulatorontheCOpressureassembly.2

Openthepressurereleasevalveonthepumptoreleasepressureinsidethecell.

UnscrewtheVCOfittingtodisconnecttheLCMReceiverfromthecellcap.

Disconnecttheinletpressuremanifoldfromtheinletpressureassembly.

Removethecellfromtheheatingjacketandsetituprighttodisassemble.

Reconnectthepressuremanifoldtotheinletvalvepressureassembly.

Removetheoutletcellcapassembly.

Removetheceramicdiskandsavethefiltercakeforlateranalysis.

Discardanyremainingtestfluid.

Screwthet-handleintothepistonandpushthepistontothebottomofthecell.

Closethepressurereleasevalveonthepumpandtheballvalveonthepressuremanifold.

Disconnectthepressuremanifoldfromtheinletpressureassembly.

Removetheinletpressureassemblyandinletcellcapassembly.

Cleananddrytheentirecellassembly.

Preparation1.Plugtheheatingjacketintoanappropriatepowersource.Placeather-

mometer(#154-20)intotheheatingwellandpreheatto10°F(6°C)abovethetesttemperature.Apilotlightwillcomeonwhentheheatingjacketreachesthetemperaturesetbythecontrolknob.

2.Beforeusingtheceramicdisk,soakitforatleast10minutesinbasefluid.Usewaterforfreshwater-basedfluids,brineforsaltwater-basedfluids,dieselforoil-basedfluids,andasyntheticbaseforsynthetic-basedfluids.Neverreuseadiskexceptforreturnpermeabilitystudies.Belowisalistofceramicdisksavailable:

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#170-55#170-53-2#170-53-3#170-51#170-53#170-53-1#170-53-4

CeramicFilterDisk,775milli-darcy,10micron,2½"×¼"CeramicFilterDisk,850milli-darcy,12micron,2½"×¼"CeramicFilterDisk,3darcy,20micron,2½"×¼"CeramicFilterDisk,8darcy,40micron,2½"×¼"CeramicFilterDisk,15darcy,50micron,2½"×¼"CeramicFilterDisk,20darcy,55micron,2½"×¼"CeramicFilterDisk,40darcy,120micron,2½"×¼"

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CellAssembly

Carefullyinspectallo-rings.Replaceanythatshowsignsofdamageorwear.

Placeathinfilmofsiliconegreaseonallo-rings.Replaceallo-ringsafteranytestabove350°F(176.6°C).

Ifthecellcapsarenotalreadyassembled,refertopage

20

forassem-blyinstructions.

Setthecellbodyonthestandwiththeendmarked“IN”pointingup.Placeano-ring(#170-13-3)ontheshoulderinsidethecellbodyandoneinthegroovearoundthecellcap.

O-ring

Applygreasetothethreadsofthecellcaps.

Screwtheinletcellcapassemblyintothecellbody.

Pushintheredknobontheheatingjacket.Thismovesthecellrestplungerintopositiontosupportthecell.

Placethecellintotheheatingjacketwiththeinletsidepointingdown.

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Screwtheinletpressureassemblyintotheinletcapandtightenitcom-pletely.

Quick-ConnectFittingPressureAssembly

InletCapAssembly

Ifthepistonisnotalreadyassembled,refertopage

21

forassemblyinstructions.Thesetscrewonthepistonbleedervalveshouldbeloose.

Placetwoo-rings(#171-99)intothegroovesaroundthepiston.

ScrewtheT-handleintothepiston.

Pushthepistoninsidethecellagainsttheinletcellcap.

Tightenthesetscrewonthepistonbleedervalvecompletely.

Connecttheinletpressuremanifoldtotheinletpressureassembly.

Makesurethequick-connectfittingsarecompletelyengaged.Pulldownhardontheringonthefemalefittinguntilitclicksintoplace.

Quick-ConnectFitting

InletBallValve

InletPressureManifold

Opentheinletballvalve.

Closethepressurereleasevalveonthepumpbytighteningitclockwise.

StrokethepumpuntiltheT-handleonthepistonrisesapproximately1½"(3.8cm).

Itmaybehelpfultosetarulerontheo-ringshoulderinsidethecell.ThiswillhelpyouseehowfartheT-handlehasrisen.

UnscrewtheT-handlefromthepiston.

Preparethetestfluid.

Carefullypourthetestfluidintothecell.Thefluidlevelshouldbejustbelowtheo-ringshoulder.

Becarefulnottogetfluidontheo-ringshoulder.

Placeano-ringontheshoulderinsidethecellbody.

Placeaceramicdiskoracircleoffilterpaperontopoftheo-ring.

Screwthecellcapassembly(cellcapandmaleVCOfitting)intothecellbodyandtightencompletely.

CellCapAssembly

ConnecttheLCMReceiverbottomcapassembly(bottomcap,needlevalve,andfemaleVCOfitting)tothemaleVCOfittingonthecellcapas-sembly.Makesurethefilterisinplaceinsidethereceiverbottomcap.

Filter(#171-84-014)

O-ring(#171-84-015)

Thespacebetweenthefiltermediaandthereceiverbottomcapshouldbefilledwithwatertoensurethatthevolumeoffiltratepassingthroughthefilterwilldisplaceanequalvolumeoffiltrateintothereceiver.

PourenoughwaterintotheholeintheLCMReceiverbottomcaptofillthevoidspace.

Opentheneedlevalveandallowtheexcesswatertodrain.

Closetheneedvalve.

Applyathincoatofgreasetothereceivercapo-rings(#171-84-015).

Placeoneo-ringaroundeachcap.

Screwthetopcapintooneendofthecellbody(theendsofthebodyareinterchangeable).

Screwthereceiverbodyontothebottomreceivercap.

Screwavalvestemintotheportinthetopreceivercap.

AttachedtheCO2PressureAssembly(#170-04)tothetopvalvestemandsecureitwiththesafetypin(#171-23-1).

Holdtheoutletpressureassemblywithonehandandpullthestopontheheatingjacketoutofthewaytolowerthecellfullyinsidetheheatingjacket.

Rotatethecelluntilitlocksinplaceoverthealignmentpininthebottomoftheheatingjacket.

Placeametaldialthermometer(#154-20)inthetopofthecellinthesmallhole.

T-Screw

NeedleValve(#170-32)SafetyPin(#171-23-1)

COPressureReceiver

2

TestingStartingaTest

UnscrewtheT-screwontheCOpressureassemblytomakesuretheregulatoriscompletelyclosed.2

PlaceaCObulbinthebarrelandscrewitontothepressureassembly.ThiswillpuncturetheCO2bulb.

2

TurntheT-screwclockwisetosetthebackpressure.Refertothechartbelowtodeterminetheminimumrecommendedbackpressureforyourtesttemperature.

Strokethepumptoapplythesamepressuretothecell.

Makesurethepressurereleasevalveonthepumpisclosedandtheballvalveontheinletmanifoldisopen.

IftheLCMfailstoplugthefiltermedia,itisunlikelythepressureinthecellwillbuild.Ifthecellpressurehasnotincreasedafterapproximately20strokesofthepump,stopthetestandrecordtheresultsas“TotalFluidLoss”.

Throughoutthetest,usethepumptomaintainthepressuredifferential.

RecommendedMinimumBackPressure

TestTemperature

VaporPressure

MinimumBackPressure

°F

°C

psi

kPa

psi

kPa

200-299

95-149

12.1-67

84-462

100

700

300-374

150-189

67-184

462-1269

200

1400

375-399

190-199

184-247

1269-1704

275

1900

400-424*

200-219

247-326

1704-2245

350

2500

425-450*

220-230

326-422

2245-2912

450

3100

*Fortestsabove400°F,usegreenViton90Do-rings.

Periodicallycheckthethermometerinthetestcellandadjustthethermo-statasneeded.

Whilethecellisheating,thepressureinsidewillriseduetothermalexpansion.Usethepressurereleasevalveonthepumptopreventover-pressurization.Maintainthepressureonthefluiduntilthetempera-turehasstabilized.Theheatingtimeofthesampleshouldneverexceedonehour.

Tocollectfiltrate,holdagraduatedcylinderuptotheoutletportontheLCMReceiverandslowlyopentheneedlevalve.Closethevalveassoonasyouhavecollectedthefiltrate.

Collectfiltrate15secondsafterinitiatingfiltrationtoensurethereisfiltra-tioncontrol.

Continuecollectingfiltratethroughoutthetest.Ataminimum,filtrateshouldbecollectedat15seconds,7.5minutes,and30minutes.

Ifthebackpressurerisesduringthetest,collectsomefiltrateandleavethevalveopenlongenoughtoreducethepressure.

EndingaTest

After30minutes,closetheoutletportonthereceiverandturnofftheheatingjacket.

Allowthecelltocooltoroomtemperaturebeforedisassemblingit.

Afterthecellhascooled,slowlyopenthepressurereleasevalveonthepump.Thiswillallowhydraulicoiltoflowbackintothepump.

Opentheoutletportonthereceivertocollectanyremainingfiltrate.

ClosetheregulatorontheCOpressureassemblyandreleaseanyre-mainingpressurebyopeningthesafetybleedervalve.2

RemovetheCOpressureassemblyfromtheLCMReceiver.

2

UnscrewtheLCMReceiverbodyfromthebottomreceivercap.

Disconnecttheinletpressuremanifoldfromtheinletpressureassembly(quickconnectfitting).

Asmallamountofhydraulicoilmaybereleased.

Removethecellfromtheheatingjacketandplaceitonastandfordisas-sembly.

Reconnecttheinletpressuremanifoldtotheinletpressureassembly(quickconnectfitting)

Unscrewandremovetheoutletcellcapassembly.

Removetheceramicdiskorfilterpaperandsaveitforanalysis.Discardanyremainingtestfluid.

Iftheceramicdiskdoesnoteasilycomeoutofthecell:

Closethepressurereliefvalveonthepump.

Strokethepumpuntilthepressurepushestheceramicdiskoutofthecell.

Thenre-openthepressurereliefvalveonthepump.

ScrewtheT-handleintothepistonontheoutletside.

Manuallypushthepistontothebottomofthecell.Thiswillforceanyre-maininghydraulicfluidbackintothepump.

Closethepressurereleasevalveonthepumpandtheballvalveonthepressuremanifold.

Disconnectthepressuremanifoldfromtheinletpressureassembly.

Removetheinletpressureassembly,cellcapassembly,andpiston.Beawarethatsomehydraulicfluidwillremaininthecell.

CleananddrytheentirecellandLCMReceiverassemblies.Paycloseat-tentiontothethreads.Alsomakesuretocleantheoutletvalveassembly.Inspectallo-ringsandreplaceanythatshowsignsofdamageorwear.

DataFiltrateVolume2

TheHTHPfilterpresshasafiltrationareaof3.55in2(22.9cm).Thisishalftheareaofastandardfiltrationtest,whichis7.1in2(45.8cm2).Tocomparetheresultsofthistesttoastandardfiltrationtest,doublethetotalfiltratevol-umecollected.

V=2(V)

F30Where:

V=StandardFiltrateVolume(mL)

VF=Filtratevolumecollectedafter7.5minutes

7.5

SpurtLoss(Optional):

SpurtLossistheamountoffiltratecollectedbeforethefiltercakehashadachancetoformandisexpressedinmillimeters.Tocalculatethespurtloss,usethefollowingequation:

V=2[V-(V-V)]=2(2V-V)=4V-2V

17.5307.57.5307.530Where:

V=SpurtLoss

1

V=Filtratevolumecollectedafter7.5minutes

7.5

V=Filtratevolumecollectedafter30minutes

30

FilterCake

Washthefiltercakeonthepaperwithagentlestreamofwater.Measureandreportthethicknessofthefiltercaketothenearest1/32in(0.8mm).Arulerwiththe“zeromark”attheveryedgeoftherulerisusefulhere.Cakedescrip-tionsmaybesubjectiveandsuchnotationssuchashard,soft,rubbery,andfine,etc.conveyadequateinformationoncakequality.

CellCap1.Placethelockingring(#171-190-023)aroundthecap.Assembly2.Placetheretainingring(#130-81-040)intothegroovearoundtheoutside

ofthecap.Makesureitengagescompletelyaroundthecircle.

Thecapshouldturnfreelyinsidethelockingring.

Cap

RetainingRing

LockingRing

O-ring

Piston1.Placearupturedisko-ring(#120-910-028)intotherupturediskport.Assembly2.Screwtherupturediskintotheport.

Placeano-ring(#700-100-096)intothebleedport.

Screwthesetscrew(#171-190-039)intothebleedport.Unscrewitonefullturn.

Placetwoo-rings(#171-900-025)intheo-ringgroovesaroundtheout-sideofthepiston.

RuptureDiskSetScrewO-ring

O-ring

Maintenance1.Thoroughlycleananddryallcomponentswithwaterandsoap(orappro-

priatesolvent).

Periodicallycheckthecellassemblyforleaks.Pressurizethecellandim-merseitinwater.Lookforbubbles.

Iftheregulatorlosespressureorsteadilyincreasespressure,replacetheseatassemblyanddiaphragm.UsetheRegulatorRepairKit(#143-07).Alwaysreplacetherubberdiaphragm(#143-00-1,soldseparately).Toreplacetheseatassembly:

Unscrewthespringcase(housingcover).Thismayrequireastrapwrench.

Removethespringcase.

Removetherubberdiaphragmfrominsidethespringcase.

Removethethrustplate.

Usingawrench,loosenandremovethebrassretainer.

Thethrustpinandseatarenowexposed.Removethemfromthebase.

Replacethespring.

Replacetheseatholder.

ReplacethethrustpinandtheTeflonseat,whichcanbeattachedbeforeinsertion.

Replacethebrassretainerwithawrench.

Replacethethrustplatewiththecurvededgesdownward.

Placeanewrubberdiaphragminsidethespringcase.

Replacethespringcaseandhandtighten.

DiaphragmRepairKit(#143-00-1)(#143-00-1)

PowerCord

Checkthepowercordforinsulationwearandlooseconnectionsneartheheatingjacketandplug.

Placetheheatingjacketnofartherfromtheheatingjacketthanthelengthofthepowercord.

Keepthepowercordawayfromthehotsurfaceoftheheatingjacket.

Installingwiring,powercords,orelectricalconnectorswillvoidthewarranty.

RegulatorMaintenanceandTroubleshooting

Symptoms

Cause:Resolution

Gasleakattheregulatoroutletwhentheadjustingscrewisloosenedfullycounterclockwise

Seatleakor*creep:Repairtheregulator

Outletpressureincreaseswhiledownstreamvalvesareclosed

Seatleakor*creep:Repairtheregulator

Gasleakfromthespringhousingcase

Diaphragmfailure:Repairtheregulator

Excessdropinoutletpressurewiththeregulatorflowopen

Blockedseatassemblyorinletfilter:Repairtheregulator

Gasleakfromanypipethreadjoint

Loosefitting:Removetheconnection.Cleantheaffectedsurfaces.ReapplyTeflontapeandtighten.

Gasleakfromreliefvalve

Faultyreliefvalve:replacethevalve.Seatleakor*creep:Repairtheregulator

Inconsistentrepeatreadings

Seatsticking:Repairtheregulator.Badpressuregauge:Replacethegauge.

Gaugedoesnotreturntozerowithnopressureappliedtotheregulator.

Gaugehasphysicaldamage:Replacethegauge.

*Creepisanincreaseinoutletpressurethatoccurswhenpressureescapesevenwhenthevalveisclosed.Regulatorseatscanbecompromisedbyparticlesintheprocessstreamwhichcancauseminorimperfectionsinthesealingsurface.Thehighflowandsmallorificecreatedduringpressureregulationcombinetoturnaverysmallparticleintoafastprojectile.Thisprojectilecannickthesealingsurfaceoftheseatandcauseleaks.Filteringparticulatesfromtheprocessstreamshouldbeahighpriority,andasmallfiltercanreducethepotentialforcreepandincreasethelifeexpectancyandaccuracyoftheregulator.

OFITE,11302SteeplecrestDr.,Houston,TX77065USA/Tel:832-320-7300/Fax:713-880-9886/

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DiagramsPermeabilityPlugging

Tester

Gauge,1500PSI

(#171-34)

Regulator(#170-08)Barrel(#143-03)

ManifoldBlock

(#170-20)SafetyPinwithLanyard

(#171-23-1)

NeedleValveValveStem(#170-16)

(#170-32)

TopCap(#171-84-012)O-ring(#171-84-015)

Body(#171-84-010)

NeedleValve

(#170-32)

Filter(#171-84-014)BottomCapO-ring(#171-84-015)

(#171-84-011)

VCOFitting,Female(#500-350-003)

VCOFitting,Male(#500-350-004)

TestCell(#171-193-6K-S)

TestFluid

O-ring,Viton

Piston(75D:#171-99)(#171-190-024-S)(90D:#171-190-061)

HydraulicOil(#171-96-1)

Qui