Operating and Maintenance Manual for Type S Flowmeters

M-101Rev. E

Type S Flowmeters: 5⁄8″,

3⁄4″ and 1″ with 157 & 600 Series Registers

TABLE OF CONTENTS

Installation & Operation ..................................................................................................... Page 1

Calibration ......................................................................................................................... Page 2

Register Maintenance ....................................................................................................... Page 4

Measuring Chamber Maintenance .................................................................................... Page 5

General Maintenance ........................................................................................................ Page 6

Troubleshooting ................................................................................................................. Page 7

TYPE S FLOWMETERS

INSTALLATION & OPERATIONFor correct installation of Type S Flowmeters, the experience of RSM is always available for your

assistance. Do not hesitate to call the nearest RSM authorized distributor.

MATERIALS OF CONSTRUCTION• MainCase:Bronze(ASTMB145Alloy844)Other metal components• NutatingDisk:GlassPhenolicLaminate (Rytonorequivalent)• DiaphragmandShafts:304SS• Gaskets:Viton“A”,MainCaseGasketsareKlingersilC4401

Before Installing the FlowmeterPlantheinstallationinsuchawayastoallowthestrainertobecoupleddirectlytotheinletofthe

flowmeter.Wherethisisnotpossible,anypipingbetweentheseunitsshouldbethoroughlycleanedout.Becarefultoallowroomforeasyremovalofthestrainerbasket.Where an air release valve is used, it should be installed in a position as close as possible to the

inletoftheflowmeter.Thiswillinsuretheremovalofthegreatestpossibleamountofairfromtheliquidbeforemetering.

Piping• Couplingsetsareprovidedwithall5/8-1”TypeSMetersforeaseininstallationandremovalduringstart-upsystemflushing.

Use seal tape or pipe cement on male threads only.Onopen-endedsystemsthepipingontheoutletsideoftheflowmetershouldbesoarrangedasto

eliminatethepossibilityofdrainingthemeasuringchamber.Whereatrapisnotpossible,ananti-drainvalve is recommended.

Experience has shown the need for a valved bypass connection to be installed around the flowme-ter.Thisarrangementpermitsproductflowintheeventthattheflowmetermustberemovedforrepair.

Allpipingconnectedtotheflowmetermustbefirmlysecuredandsupportedtopreventstrainontheflowmetercasing.

Orientation of Meter• Normallyhorizontal,lefttorighthandflow.

Air Vent LineWhereanairreleasevalveisused,theventpipeshouldbe3/4”insidediameterpipeortubing.Care

shouldbetakentopreventanypossibleobstructiontothefreeflowofairinthisline.Thislineshouldbeconnectedtoadripcollectingdrum,ortothesupplytankatlowerthanlinepressure.

When InstallingTheconnectingpipingshouldbefirmlysecuredtopreventstrainontheflowmetercasing.Care

shouldbetakenthatthereisprovisionforexpansionduetochangeintemperature.Allpipingontheinletsideoftheflowmetershouldbethoroughlycleaned.Wheneverpossible,place

aspoolintheplaceoftheflowmeterandflushalllinesthoroughlybeforetheflowmeterisinstalled.Themajority of service calls on new installations will be eliminated if these directions are followed.

Inletandoutletareclearlymarked;donotinstallbackwards.

INSTALLATION &OPERATION

MATERIALS OF CONSTRUCTION

Before InstallingThe Flowmeter

Piping

Orientation of Meter

Air Vent Line

When Installing

Page1

600 Series RegisterIfitisnecessarytochangethedirectioninwhichtheregisterwillfacewithrespecttothepipe,fol-

lowthesedirections:1.Loosentheclampsholdingtheregistertotheflowmeter.2.Turntheregistertothedesiredpositionandtightentheclamps.

Model 157 Register1.Removeregisterboxscrews.2.Removeregisterbox.3.Turntheregistertothedesiredpositionandreinstalltheregisterboxandscrews.4.Tightenregisterboxscrews.Openlinevalvesslowlyallowingliquidtograduallyenterflowmeter.Usecarenottooverspeedthe

flowmeter.Thismaycausedamageand/orprematurewearofinternalcomponents.

After InstallingPasssufficientliquidthroughtoclearthelineofair.Checktherateofflow.Itshouldnotexceedtheratedcapacityoftheflowmeter.Thebypassonthepumpshouldbesoregulatedastodeliverthemaximumpracticalrateofflow

fortheleastamountofpressure.Pressureontheflowmetershouldnotexceed150psi.Donottrytoincreasetherateofflowthroughundersizedpipesandfittingsbymeansofexcessivepressureswhichwillcauseleakinggasketsandcollapsedairreleasefloats.

Temperatureoftheliquidshouldnotexceedthatspecifiedfortheflowmeter.While all flowmeters are carefully calibrated at the factory it is recommended that flowmeters be

testedandifregistrationappearsinaccurate,see“Calibration”tolocatetrouble.

Cleaning The StrainerWhiletheinstallationisstillnew,thestrainershouldbecleanedveryfrequently.Afterthesystemhas

hadachancetobethoroughlywashedout,periodiccleaningisrecommended.

To Operate The FlowmeterToresetthe600SeriesRegistertozero,pushintheresethandleattherightsideoftheregister

androtateclockwise.

CALIBRATIONTestsofflowmetersshouldbeofsufficientquantity(volume)sothatthereadabilityoftheregister

allowsanaccuratetest.Minimumtestquantityistheamountmeteredinoneminuteatnormalflow.

Erratic RegistrationErraticregistrationisanindicationoftroubleinthesystem,usuallycausedbyairordirtinthemea-

suringchamber.Donottrytocorrectthisbyrecalibrationoftheflowmeter,butfirstcheckoverthepipingforairleaks,cleanthestrainerandthen,ifthetroublehasnotbeenfound,cleantheflowmeterasdirectedinthesection,“FlowmeterMeasuringChamber”.Ifthisdoesnotcorrectthetrouble,checkfor faulty installation.

Over-registrationisanindicationofair,whereasunder-registrationisgenerallycausedbydirtorpipescaleinthemeasuringchamber,ortheliquidbypassingtheflowmeterinsomemanner.

Consistent Over- or Under RegistrationWhentheflowmeterregistersconsistentlyeithermoreorlessthanisdelivered,thecalibrationmay

becorrectedinthefollowingmanner:

To Turn 600 Series Register

To Turn RegisterModel 157 Register

After Installing

Cleaning The Strainer

To Operate The Flowmeter

CALIBRATION

Erratic Registration

Consistent Over- orUnder-Registration

Page2

Model 157 Register:1. Removetheregisterfromtheflowmeter

byremovingscrewsholdingtheregisterto the flowmeter.

2. On the stuffing box spindle of theflowmeter will be found a gear knownasthe“StuffingBoxChangeGear.”Thisgear meshes with and drives a similargear known as the “Register ChangeGear”ontheregister.Notethenumbersstamped on these gears. Now refer totheChangeGearChart and locate thispairofgears.

3. If the flowmeter is under-registering(deliveringtoomuch),selectanewpairof gears farther up on the chart. If theflowmeter is over-registering (deliveringtoo little), select a new pair of gearsfartherdownonthechart.Therighthandcolumns show the difference in delivery between each successive pair to use;see example.

4. RemovetheoldChangeGearsandreplacewiththenewpair.(Newgearsmaybeobtainedfromthenearestauthorizeddistributor.)ToremovetheRegisterChangeGear,closethesplitendofthespindlewithapairofpliersandpulloffthegear.Afterslippingonthenewgear,spreadtheendsofthespindleslightly.TheStuffingBoxChangeGearshouldpulloffeasilyandthenewoneshouldslideonwithoutforcing.Do not spread the ends of the stuffing box spindle.

5. Reassembletheflowmeter,runafewgallonsthroughandretest.

600 Series Register

The600SeriesRegisterChangeGearsarelocatedinsidetheregister,directlybeneathanaccessplateontopoftheregister.Removethetwoscrewsontheplate,thecoverplate,andthegasket.Replacethegearsasabove.NOTE: Thestuffingboxandregisterchangegearsareidentifiedby“S”and“R”stampedonthegearplate.Spreadtheendsofbothspindlesandreassemblethecoverplate.Runafewgallonsthroughandretest.

Example: Suppose,forinstance,thataflowmeterhasan18-toothregisterchangegear,anda19-toothstuffingboxgearandthatwhen50gallonshavebeenregisteredonthedial,theflowmeterhasactuallypassed80cubicinchesmorethan50gallons.Thisis.69%under-registration.

Changingthegearstothe34-36combinationwouldcutdownthedeliveryby.32%cubicinchessothattheover-deliverywouldthenbeonly.37%.Goingtothenextcombination,33-35,wouldcutdownthedelivery.17%more,andthenext,32-34,still.18%more,makingatotalof.32%+.17%+.18%or.67%.

Inthisinstance,therefore,a32-toothgearshouldbeusedontheregisteranda34-toothgearon

Model 157 Register

600 Series Register

Page3

SAMPLE CHANGE GEAR CHART

TO D

ELIV

ER L

ESS

(INCR

EASE

REG

ISTR

ATIO

N)

TO D

ELIV

ER M

ORE

(DEC

REAS

E RE

GIST

RATI

ON)

CHANGE CU IN % in 50 US GAL

27 31 24 28 23 27 21 24 20 23 18 21 18 21 17 20 32 37 27 31 24 28 23 27 21 24 19 22 18 21 16 19 15 17 15 17 12 14 11 13 12 14 20 23 26 30

REG STUFF GEAR BOX GEAR

26 28 27 29 28 30 29 31 30 32 31 33 32 34 33 35 34 36 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 32 33 35 36

This chart is reproduced for illustration purposes only. If the gears on your flowmeter do not correspond with those on the chart, contact your nearest RSM authorized distributor, giving flowmeter size, register type, dial capacity and unit measure.

Figure 1. Register Change Gears

MAINTENANCERegister

Registerpartsaresuchthatonlyminorfieldrepairsareadvisable.Whenaregister is inneedofextensiveserviceorrepairotherthanthatforwhichinstructionisgivenhere,itisrecommendedthattheregisterbereturnedtothenearestRSMauthorizeddistributorforrepair.Ifareplacementregisterisneeded,besureandspecifytheexactmodeloftheregisterreplacedaswellasthechangegearsintheregister.

Model 157 Register — To Clean The RegisterToremoveregisterfromflowmeter,removethescrewsholdingregistertotheflowmeter.

1.Removethemechanismfromitshousing.

2.Blowoutthedirtwithcompressedair.Donotusebrushes.

3.Washthedialfacewithsoapandwater.Donotusegasolineorkerosene.Incasethedialonlyistobewashed,itisnotnecessarytoremovethemechanismfromitshousing.

4.Replacethemechanisminitshousing.

600 Series Registers — Repair of Register

Registerpartsaresuchthatonlyminorfieldrepairsareadvisable.Whenaregister is inneedofrepairorserviceotherthanthatforwhichinstructionisgivenhere,itshouldbereturnedtotheRSMauthorizeddistributor.Maintenanceoftheregisterislimitedtocleaningandtothoseoperationswhichwilllocatethesourcesofpossibletroublewithoutremovingtheregisterfromtheflowmeter.

Whenorderingareplacementregister,specifytheregistermodel,codeandserialnumber(stampedonregisternameplate).

Whenreplacingtheregister,removethechangegearsfromtheoldregisterandtransferthemtothenewregister.(Thiswillmaintainoriginalflowmetercalibration.)

CleaningRegularlycleanthehousingtoremoveaccumulationsofdirtandgrease,orchemicaldeposits.CAUTION: Useonlymilddetergentsandwatertocleantheregisterwindow.Donotuseabrasives

or spray type cleaners, or solvents and thinners which may soften or cloud the plastic window.

To Remove Housing From Mechanism

1. Removetwoscrewsandaccessplateontopofregister.

2. Pushinresetknobandpartiallyresettoretainshaftinresetposition.

3. Removeresetknobscrewandfourscrewsonbottomplate.

4. Pulloutonresetknobtodisengageknobfromshaft.

5. Loosenandslidehousingtoknobendandremove.Cautionisadvisedinremovalofhousingtoavoidscrapingvisiblewheels.

6. Reset shaft can be turned to normal position.

To Remove Register From FlowmeterRemovethetwoclampsholdingtheregisteradaptertotheflowmeter,andliftofftheregister.

MAINTENANCERegister

Model 157 RegisterTo Clean The Register

600 Series RegistersRepair of Register

Cleaning

To Remove HousingFrom Mechanism

To Remove RegisterFrom Flowmeter

Page4

To Reinstall RegisterTo Flowmeter

MEASURING CHAMBERMAINTENANCETo Remove and Disassemble

To ReassembleChamber In TheFlowmeter

Page5

To Reinstall Register To FlowmeterCarefullyaligninputshaftofregisterwiththestarconnectionongeartrainofflowmeterandinstall

thetworegisterclamps.

MEASURING CHAMBER MAINTENANCETo Remove and Disassemble

Thisoperationisnotdifficultandmaybeperformedbyanycompetentmechanic.Nospecialtoolsarerequired.Notroubleneedbeexpectedifthesefewsimple,butimportantdirectionsarefollowed.Donotopentheflowmeteruntilyouhavecheckedoverallotherpossiblecausesoferraticregistration.1. Prepareacleansurfaceonwhichtoplacethepartsastheyareremoved.Theparts,thoughsturdy,

are machined to close tolerance and should be handled with care. Have a replacement gasket ready beforeopeningtheflowmeter.

2. Remove the flowmeter cover.3. Removethemeasuringchamberfrom

theflowmetercasing.Ifthechambersticks, it may be necessary to tapmaincase to free it — insert maincase bolts in holes and hit head of bolt. Remove thrust roller insert plate or channel. Remove the three screws holdingthechambertogetherandthethrust roller insert plate or channel.

4. Pryopen the chamberwith apieceof hard wood inserted into the inlet port. Be careful not to damage thedisc or to scratch or nick any partof the chamber. Remove the upper halfofthechamber.Becarefulnottoscratchornickanypartofthechamber.

5. Liftoutthediscpistonbyitsspindle.6. The chamber is now completely disassembled. The parts may be most easily cleaned of scale, etc.,

bymeansofagood,coarse,stiffbristle(notwire)brushandgasolineorsuitablecleaningagent.Allforeignmattermayberemovedinthismanner.Do not use abrasives, such as emery cloth or sand paper.

To Reassemble Chamber In The Flowmeter

1. Besurethatthejointsarecleanwherethetwohalvesfittogether.

2. See that the thrust roller is perfectly free in the disc.

3. Holdthelowerhalfofthemeasuringchamberinthelefthandwiththediaphragmtowardstheleft. Hold the disc near the thrust roller hole, spindle up. The disc will then drop into position easilyifheldataslightangle.

4. Placethethrustrollerinposition.

5. Placetheupperhalfontop,makingsurethatthediaphragmfitsinitsslot.Insertthethrustrollerbearingplateorchannel.Do not use a hammer.

6. Operatethepistonslowly;itshouldmovefreelywithoutany“catch.”

7. Cleanoutthecasing.

8. Liftthechamberbythepistonspindleandloweritintopositioninthemaincasing.Thetopofthechambershouldbelevelwiththegasketseat.Ifitisnot,pressingbyhandshouldmakeitso.

9. Whenreplacingthecover,firstinspectthegasketandthensetthearmofthegeartrainsothatit will not come down on the piston spindle.

10. Makesurethatthecoverisdownonitsseatbeforetighteningthebolts.

Figure 2. Measuring Chamber Components

ChamberUpper Half

ChamberLower Half

Disk

ThrustRoller

ThrustRoller

Channel

Page6

To Repair Leaking“U” Cup SealStuffing Box

To Replace The Gear Train

GENERALMAINTENANCE

Sediment

Air

Testing

Storage

To Repair Leaking “U” Cup Seal Stuffing Box

1.Removetheregister(seepage4).2.Removethestarconnection(1),usingaNo.8Allenwrench.3. Removethestuffingboxnut(2).4.Removeshaftseal(3).Inspectupperendofspindletobesure

itisfreeofnicksorburrswhichmightdamagethenewshaftseal when it is placed on spindle.

5.Replaceshaftsealwithnewpart.Besureexpander(4)isinpositionbeforeinsertingnewseal.

6.Assemblenutandtightendownalltheway.

To Replace The Gear Train

1.Removetheregister(seepage4).2.Removethestarconnection(1),usingaNo.8Allenwrench.3. Remove the flowmeter cover, with gear train assembly at-

tached.Keepdirtoutoftheflowmeterandavoidinjurytothe covergasket.

4.Unscrewthestuffingboxnut(2).5.Removeclampnut(6);geartrainassemblycanberemovedfromundersideofflowmetercover.6.Install replacementgear trainmakingsurethat thereplacementhasthesamereduction.*Note:

Pack gear train and housing full with non-water soluble grease on enclosed type.7.Whenreplacingthecover,firstinspectthegasketandthensetthearmofthegeartrainsothatit

will not come down on the piston spindle.

GENERAL MAINTENANCE In the maintenance of the accuracy of RSM Type S Flowmeters, little is necessaryother than to see that the proper conditions of operation are preserved. These conditions, oncetheflowmeterhasbeenproperlyinstalled,consistmerelyinguardingagainstforeignmatter,suchassedimentandair,enteringthemeasuringchamberandexcessiveheatfromdamagingthediscpiston.Also,donotpermitflowmetertobeoperatedatrateofflowgreaterorlessthanrecommended.

Sediment Theliquidpassingthroughthemeasuringchambermustbefreeofgritandotherformsofsedimentinordertopreventunnecessaryfrictionandthescoringofthediscandchamber.Evidenceoftroublefromthissourcewillbefoundintheunder-registrationoftheflowmeter.Periodiccleaningofthestrainerattheinletoftheflowmeterwillhelptoinsureagainsttrouble.Inthedesignofthisunit,particularcarehasbeentakentomakethisoperationassimpleas possible.

Air Beinganinstrumentwhichmeasuresbyvolume,aflowmeterwillrecordthepassageofairaswellastheliquidbeingmeasured.Over-registrationistheresult.Theairreleaseunitisintendedtopreventthisconditionbyventingthisairbeforeitpassesthroughthemeasuringchamber.

Most compact air release units, due to the limited available space, will not separate an emulsionorairandliquid.Eventankairreleaseunitswillnotefficientlyseparateairfromviscousliquids.

Testing Instructionforcalibrationwillbefoundunder“Calibration”onpage2.

Storage Beforeaflowmeterisputintostorage,themeasuringchambermustbeflushedwithsuitableliquidwhichwillnotdamagethedisc.

Figure 3. Stuffing Box

TROUBLESHOOTING

Page7

TROUBLESHOOTING

1. Register Not Working When Liquid is Flowing Bypassaroundflowmeternotshutoff. Shearedkeyon“changegear”duetostuckregisterortoreverseflowthroughtheflowmeter. Registerinneedofrepair.Seepage4. Discinmeasuringchamberbroken.

2. Leakage At The Stuffing Box Looseorwornstuffingboxnutorwornspindle.Seepage6. BadU-Cupseal.

3. Chronic Leakage At The Main Case Gasket Brokengasketorloosebolts. Excessivelineorshockpressure.

4. Reduction In The Rate or Complete Stoppage of Discharge Ongravityorhydraulicsystemsoronpumpsystems(pumplaboring): Blockedstrainerduetosedimentorfrost. Discinflowmeterstuckduetodirt(checkstrainerandcleanmeasuringchamber).Seepages

1and5. Onpumpsystems(pumpnotlaboring): Pumpbypassstuckopen. WornPump.

5. Over-Registration — Erratic Onpumpsystems: Airreleaseorairventpluggedallowingairtopassthroughtheflowmeter. Leaksinthesuctionlinesuchasatvalves,valvestems,pumppacking,orflangegasketscaus-

inganemulsionofairandliquid. Airpocketsinclosed-endpipinginthesuctionline. Excessivesuctioncausedbyvalvesonlypartiallyopen,suctionpipingtoosmallorsuctionlifttoo

great.

6. Under-Registration — Erratic Dirtinthemeasuringchamber. Badlywornmeasuringchamber. Maincasingdistortedordamaged. Leakagearoundtheflowmeterduetopartlyopenvalve. Damagedinternalparts.

7. Consistent Over- or Under-Registration Flowmeterinneedofcalibration.Seepage2.

8. Liquid Leaking Out The Air Release Vent Worn,damagedordefectivevalveunit.

27⁄8

115⁄16

G

C AB

D

E

45⁄1657⁄8

15⁄8

31⁄2

51⁄2

67⁄8

7⁄8

F

F

E

ACBG

D

ALLOW 2 INCHCLEARANCE FORREMOVING REGISTER

U.S.A./International1310 Emerald RoadGreenwood, SC 29646-9558Tel.: Toll-Free (800) 833-3357 (864) 223-1212Fax: (864) 223-0341

© 2013 Red Seal Measurement 500 01/13

Specifications subject to change without prior notification.

91/4

2

31/2

15/8

57/845/16

1-111/2 npt

211/16 103/4

53/8

2

71/4

51/2

41/4 25/8

71/2

7/8