Bvalve BV2506 Series Owner's manual

INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
1 de 15
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Paging1|15
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INSTRUCTIONMANUALFOR
INSTALLATION,OPERATION,
MAINTENANCEANDSTORAGEFOR
BVALVEBELLOWSEALEDGLOBE
VALVESmodelBV2506X
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INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
2 de 15
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CONTENT
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1. General…………………………………………………………………………………………page3
2. Intendeduse…………………………………………………………………………………page3
3. Limitconditionsforoperation….……………………………………………………page3
4. Safetyinstructions…………..…………………………………………………………..page4
4.1 General………………………………………………………………………………page4
4.2 Safetyinstructionsfortheuser…………..……………….…………….page5
4.3 Specialrisks……….………………………………………………………………page5
4.4 Leakdetectionport…………..……………………………………………….page6
5. Installation,operationandmaintenance.………………………………………page6
5.1 General……………………………………………………………………………...page6
5.2 Inspectionbeforeinstallation…………………………………………….page6
5.3 Installation………………………………………………………………………. page7
5.4 Operation…………………………………………………………………………..page12
5.5 Maintenance…..………………………………………………………………….page13
6. Instructionsfortransport,storageandhandling…………………….……..page13
7. Troubleshooting………….……..……………………………………………………..….page14
8. Spareparts.……………………………………………………………………….……..… page15
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INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
3 de 15

3
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1. General
ThisdocumentappliestotheglobebellowsealedvalvesdeliveredbyBVALVEFSC,S.L.U.
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2. Intendeduse
Aftertheirinstallationinapiping system(eitherbetween flanges orbywelding) theuse of theglobe
valvesisexclusivelydefinedastostoporcontroltheflowofmediaforon‐off/regulatingapplicationwithin
thepermissiblepressureandtemperaturelimitsbymanual/actuatedoperation.
Valvesaredesignedandmanufacturedasperthespecificationandinputsgivenbythecustomerduring
enquiryorpurchaseorder.Usageofthevalveforapplicationotherthanspecifiedmanufacturersisnot
responsible.
3. Limitconditionsforoperation
The valves, according essential safety requirements stablished inthePressureEquipmentDirectiveis
appropiate to work with all media classified as Group I (liquidsorgases),asperselecteddesignand
constructionmaterials.
During selection phase of the valve, customer is always informed about selected materials for valve
construction. In this way, customer can verify suitability of such materials and add any comment or
informationthereon.
Theselectionandoperationofthevalveswillneverexceedthefollowingpressure/temperaturelimits.
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WORKING CONDITIONS
Model DN PN
Temperature, ºC
-60/-10 -10/100 100/120 150 200 250 300 350 400
Maximum admissible pressure, bar
BV25061 DN15-300 16 - 16,0 16,0 14,4 12,8 11,2 9,6 - -
BV25063 DN15-200 25 - 25,0 25,0 24,3 23,0 21,8 20,0 17,5 -
BV25064 DN15-300 16 - 16,0 16,0 15,5 14,7 13,9 12,8 11,2 -
BV25065 DN15-300 40 - 40,0 - 35,2 33,3 30,4 27,6 25,7 23,8
BV25065 DN65-300 16 - 16,0 - 14,0 13,3 12,1 11,0 10,2 9,5
BV25066 DN15-300 40 40,0 40,0 - 36,3 33,7 31,8 29,7 28,5 27,4
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Table1:workingconditionsforBvalvevalvesmodelBV2506X
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INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
4 de 15
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4
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4. Safetyinstructions
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4.1 General
Lasválvulasestánsujetasalasmismasreglasdeseguridadquelatuberíadondesevayanainstalar.Por
lotanto,lasindicacionesmencionadasenestemanualsonunasrecomendacionesdeseguridadañadidas
quedebenserconsideradasparalasválvulas.
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Figure1:valveposition(fullyopen)duringdischarge
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¡Warning!
In case of pressure above design pressure, do not operate the valve under this
circumstance, getting away from the affected area and acting on the sources to reduce
pressure.
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¡Warning!
In case of temperature over/below design temperature, do not operate the valve under this
circumstance, getting away from the affected area and acting on the heat sources to
reduce temperature.
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¡Warning!
In case that the selected material for the valve construction is not suitable to the corrosive
properties of the media, if high corrosion is found in the internals of the valve, substitute
the complete valve into another with suitable material.
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¡Warning!
In case of fire in the process unit, get away from the affected area, evacuate and seal the
area. Follow the plant, experts or authorities plans for evacuation and firefighting.

¡Warning!
During transport, handling, installation and operation, do not place any external charge on
the valve.
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¡Warning!
Do not install or use the valve in case of evidence of deformation or breakage. 

¡Warning!
Valve is not designed to support any load coming from external pipe systems. In case of
breakage, correct the piping design and substitute the valve into a new one.
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
¡Warning!
In case that surface temperature on the valve is higher than 65 ºC, it is recommended to
restrict the access to the area close to the valve to avoid direct contact with it or to install
a thermal isolation system on the valve.
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¡Warning!
Check that the valve operates inside the pressure and temperature limits stablished in the
technical documentation and operating manual.
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INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
5 de 15
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5
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4.2 Safetyinstructionsfortheuser
Noesresponsabilidaddelfabricanteydebeserdeobligadocumplimientoporelusuario,quelaválvula
soloseusesegúnlorequeridoporelusodefinidodescritoenestemanual.
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Dangertolife
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Whenavalveisdisassembledfromthepipingsystempropercarehastobe
takeninordertoavoidpossibledamagetothe serrations,threadingof the
connectingparts.Carelessnesscanleadtoleakagethroughconnectingparts
alterreassemblinganddangertolife.
Dangertolife
Itmustbeabsolutelyassuredthattheselectedmaterialsofthepartsofthe
valvearesuitableforthehandledmedia.Themanufacturerisnotresponsible
fordamagesofthevalvecausedbycorrosiveagentsThedisregard of this
ordinancecanleaddangertolifeandcausedamagesinthepipingsystem.
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Dangertolife
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Itismandatorytooperatethevalvewithappropriatesafetygadgets.
Dangertolife

Periodic visual, functional inspection of the valve for opening/closing, joint
tightness & leak tightness of packing region can avoid possible hazard in
operation.
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Dangertolife

Incaseofleakthroughthegaskets,substitutethemintoasuitableonestothe
serviceconditionsattheshortestbyqualifiedstaff.

Onlyqualifiedstaffshallbepermittedtooperateanddomaintenanceofpressurepipingsystems.
4.3 Specialrisks
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Dangertolife
Beforedisassemblingofthevalveoutofthepipingsystemand/orbeforethe
loosening of the bolts and nuts of the bonnet system shall be completely
depressurized to avoid an uncontrollable fugitive emission of the media. lt
mustbeassuredthatthevalveiscompletelyopentoenablethatthepressure
canescapeonbothsidesofthevalve.
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
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Dangertolife
Whenavalveshallbedisassembledfromthepipingsystemthereexiststhe
riskthatthemediacanflowoutoffthepipingorthevalve.Incaseofliquids
thatareharmfulforthehealthordangerousthepipingsystemshall be
completelydrainedbeforeremovingthevalve.
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INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
6 de 15
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6
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4.3.1 Essential safety requirements will be marked / punched or rivetedwithCEmarkingasper
PressureEquipmentDirective2014/68/EU.

4.3.2 OncustomerrequirementvalveswillbetaggedwithTAGnumbersasspecifiedbycustomer.

4.4 Leakdetectionport

Whereverleakdetectorspecifiedinthecontractaleakdetectorport(Generally¼”or½”NPTplug
port)willbeprovidedinbetweentheglandpackingorinbetweenthepackingandthebellowfor
whichasuitableleakdetectioninstrumentcanbeattached.Incaseofdetectionofbellowleakage,
gland‐packingbolt/nutshouldbetightenedtocontroltheleakagetopermissiblelimits.
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5. Instalation,operationandmaintenance
5.1TheGlobevalveproductssuppliedbyBVALVEFSC,S.L.U.maybeinstalledandoperatedinservice
conditionssuitabletotheirdesignandconstructionandonlyinaccordancewithallapplicablecodes,
standardsandgenerallyacceptedgoodconstructionandoperationpractice.
5.2Pre‐installationinspection
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Dangertolife

Beforeinstallingverifythatthevalveissuitablefortheserviceinwhichitis
beinginstalledbyreferringtheservicetagandnameplate.

Disregardofthisprecautionarymeasurecanleaddangertolifefortheuser
anddamagesinthepipingsystem.

5.2.1 Checkthevalve,handWheelforpossibledamage.

5.2.2 Intrusion of foreign materials into the valve during the transportation, mounting,
installationandoperationmustbeavoided.Thevalvesaretransportedandinstalledin
closedpositionforthisreason.

5.2.3 Onflangedvalves,removetheflangeprotectorsandinspecttheflangefacingsfordeep
nicksandscratches.

5.2.4 Removethesilicagelbagsormoistureabsorberfromthevalveinletoroutletports.

5.2.5 Onhandwheelvalvescyclefullyopenandfullyclosedtocheckforeaseofoperation.

5.2.6 Afterthesepointshavebeencheckedandapproved,thevalveisreadyforinstallation.

5.2.7 Beforeinstallationpleaseensurethatallpipesandvalvesarefreefromimpuritiesor
foreign particles, which could impair usability. Sealing systemcanhoweverbe
damagedbyimpuritiesdespiteofhighdegreeofhardness.

5.2.8 Threadingsurfaces,customershouldgiveenough protectionlikedamageordebris.
Whenendcapsarenotintactseatareaandothersurfacesshouldbecleaned.

INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
7 de 15

7
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5.2.9 Flushthevalvefullybykeepingthe valveinfullopenpositioninordertoavoidthe
bellowdamage.Itisrecommendedtousetemporarystrainerbeforethevalveduring
initialflushingsoastoavoidpossibledamagestoseatandtrimparts.



Figure2:Valveposition(fullyopen)duringflushing

5.3 Installation

5.3.1 SmallGlobe/Bellowssealedglobevalvesuptoandincludingnominalsize2”NB(DN50),
PN16andPN40maybeliftedorcarriedbythehandwheelwithout damageto the
valve.

5.3.2 LargerGlobe/BellowssealedvalvesDN65andabove,PN16andhighershouldbelifted
by using the lifting lugs provided, or by looping a suitable nylon rope around the
bonnet.

5.3.3 Neverliftthelargervalves(DN65andabove)bythehandwheel.Attemptstoliftalarge
orheavyvalveinthisfashioncanresultininjurytopersonnelanddamagetovalveand
property.


Figure3:liftingandhandlingforvalvesDN50andsmaller

INSTRUCTIONS INST. OPERATION AND
MAINTENANCE
BV2506X DN15 a DN300
Code
MAN-2506X-EN
Edition
0
Date and responsible
14/01/19
Page
8 de 15
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8
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Figure4:liftingandhandlingforvalvesDN65andbigger

5.3.4. MOUNTINGANGLE:Duringinstallationofunidirectionalvalve,orientthevalvesothatthe
inletendwillbetowardthehigherpressure.

Thedirectionofflowhasbeenmarkedas“”or“”onthebodyandthepreferred
pressureendistheinletofthevalve.Whenpossible,BellowSealValvesshouldbeinstalled
withthebonnetinaverticalposition.Itisrecommended,nottoinstallbellowsealedvalves
withthe stemupsidedowninorder topreventtheaccumulationofdebris inthebellow
area.



Dangertolife
ItisnecessarytoensurethattheflowindicationontheGlobevalvebody
should be observed and valve should be installed with correct side
upstream.
Disregardofthisprecautionarymeasurecanleaddangertolifefortheuser
anddamagesinthepipingsystem.



Figure5:inhorizontalpipes,thevalvecanbeinstalledwithhorizontalspindleorientation

√

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Figure6:installationpositionforglobevalveswithverticalspindleorientation











Figure7:directionforbellowsealedvalveswithbalancedplugdesign
(onlypermittedforhorizontalpipelinesandverticalspindleorientation)










Figure8:valveswithbalancedplugdesigncannotbeinstalledwithspindleinhorizontalorientation
independentlyofthedirectionofpipe(horizontalorvertical)
√
X
√
X
X

X

INSTRUCTIONS INST. OPERATION AND
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Code
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10
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Warning
Bellow seal Globe valve with pressure relief plug design (Balancing plug)
shouldnotbemountedinHorizontalorVerticalpipelinesrunswithHorizontal
spindle.

5.3.5Useofbalancedplug
 Theuseofbalanceddiscisessentialincaseofhighpressureandbiggersizeofvalvetoreduce
theeffortrequiredtooperatethehandwheel.

 Atthisregard,itisrecommendedtofitthevalveinoppositedirectionasshownabove,i.e.,
pressureonthedisc/plug,obviouslybalancedplug.

 At phase‐1 the valve is completely closed, al phase‐2 the pilot plug/first plug opensand the
pressureinthevalvebalanced,alfinalphase‐3thevalveiscompletelyopen

Figure9:phaseofbalancedplugdesign
5.3.6Connectingpipesaretobepositionedinsuchaway,thatnounduestressesactonthevalvehousing.
Valveandpipeshouldbesupportedduringweldingprocess,andmustnotbestrainedwhilecooling.
5.3.7 Only suitable wrenches/tools shall be used for installation, disassembly, maintenance and
reassembleofthesevalveproducts.
5.3.8Flangedvalvescan beboltedintothelineusingstandardstud‐nutsandgaskets.Wheninstalling
flangedvalves,tightentheflangeboltswhicharediametricallyoppositetoeachotherandallboltsshould
fastenedgraduallytoauniformtightness.
5.3.9Onthreadedvalves,inspectthethreadsinboth endsofthevalvetoverifynodamage occurred
duringshipment.Besurethereisnodirt,grit,orchipsinthevalveboreorthreads.
5.3.10Securelytightenwithapipewrench.Forsafety,threadedpipingrequiressecureanchoringofall
componentsthatarescrewedintothreadedvalves.Alwaysusethecorrectsizewrenchesonthepipeside
ofthevalvetominimizethechancesofdistortingthevalvebody.
5.3.11Forweldendvalvesthetemperaturerequiredtoweldthevalveintothelinewillexceedtherated
workingtemperatureofthevalve.WhileinstallingSocketweldorButtweldendvalvesmakesurethat
thevalveisinclosepositionbeforeapplyingheattoprotecttheseatandcoreface

INSTRUCTIONS INST. OPERATION AND
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11
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Figure10:valveinclosedpositionbeforestartingweldingtasks

5.3.12Wesuggestselectingthesizeoftheweldrodsoasnottoincreasethetemperatureofwelding
morethanthebody‐bonnetallowabletemperature.
5.3.13Selectionofproperweldingrodandmaterialtobedonebyqualifiedwelderasperapproved
WPS/PQR.TherootweldingtobedonebyTIGweldingprocessonly.
5.3.14Wheninsulatingvalves,avoidinsulationabovethebonnetpackingarea.lnsulatingabovethis
mayresultininjurytopersonnelanddamagetovalveandproperty,asglandleakagecannotbe
detected.
5.3.15Wheninstallingrisingstemvalves,besuretoallowsufficientclearanceforoperationandfor
removalofthestemandbonnetifnecessary.
5.3.16ValvewithGearBoxandactuatedoperationtype,makesurethatpropersupporttobegivenfor
smoothoperation. 

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5.4 Operation

5.4.1. Replacement of major components, including stem and plug shouldnotbedoneunderfield
conditions,butshouldbedoneonlyinaproperlyequippedworkshop.

Dangertolife

WheneveraleakageisfoundthroughtheStemPackingarea,itisunderstood
thatthebellow/bellowassemblyhasdamaged,henceastemporarysolution
tightentheglandpackingtocontroltheleakageandisrecommendedto
replacethebellow/bellowassembly.

5.4.2. Stem/Yokesleeve(Threadedportion)islobecheckedregularlyforexistenceoflubricants.The
ValvestemtobelubricatedwithHightemperaturegreaseevery2‐3months.Lubricationshould
be done and valve to be operated at least once in a fifteen days and proper record to be
maintained.


Lackoflubricationleadstofunctionalfailuresofthevalveduetoaccumulationofdirtand
contaminationbymedia.

5.4.3. Whenthevalveisinoperation,stempacking,body,bonnetorcylinderboltingshallbeexamined
forrequiredtightnessregularly.

5.4.4. Ifthepackingiscompressedoveraperiodoftime,thenthesamehastobereplacedbynewone.

5.4.5. Werecommendthatthebonnetstudsonthevalvetobecheckedfor tightness prior to
pressurizingandalsoafterashortperiodofservice.Thisisparticularlyimportantifthevalvehas
beensubjectedtoseverechangesintemperature.Tighteningshouldbedonebypullingdown
thenutsdiametricallyoppositetoeachother.

5.4.6. Turningthehandwheelclockwiseclosesthevalvesandanticlockwiseoperationopensthevalve.
Normalhandforceissufficientfortheoperationofthehandwheel.Onlyforatightclosureorin
theopeningphaseofthevalveincreasedhandforcemaybenecessary.


INSTRUCTIONS INST. OPERATION AND
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5.4.7. Theuseofextensionrods,levers,wrenchesandsimilaritemsforoperationofvalvesisstrictly
notrecommended.

5.4.8. Thevalveswithactuatorsmustbeproperlysupportedatinstallationforsmoothoperation.

5.4.9. Ifthevalveisexpectedtobeinopenorclosedpositionforalongdurationoftime(say3months),
it is recommended that the valves are opened and closed for at least 3‐5 cycles to maintain
integrityofstemmovement.Thisisessentialasthevalveisseeinghightemperaturesinthermal
fluidservice.

5.5. Maintenance

5.5.1. Toensureoperationalreliabilityallvalvesshouldbeoperatedandcheckedregularly.

5.5.2. If valves are provided with the auxiliary connections, before starting the maintenance work
removeallthemediacollectedinsidethecavitiesusingthedraining/ventingports.

Dangertolife

Itisrecommendedtoreplacethebellow/bellowassemblyafterthespecified
lifecycles or the specifiedtimeperiod whichever isearlierto eliminate the
possiblehazardsduetoleakage.


Dangertolife

Whenavalveisremovedfromthesystemsconveyingdangerousmedia,shall
becarriedawayfromtheplant,thenthevalvemustbeprofessionally
decontaminated.

6. Transport,storage&handlinginstruction

6.1. Valvesshouldbestoredwithdesiccantinsidetheportsandplasticcapsshouldsecurelycoverboth
theports.
6.2. Valvesshouldnecessarilybestoredundercoveredrooftopreventdamagetotrimsfromdust,rain,
storm,sandetc.,
6.3. Itisadvisabletocoverthevalveswithpolythenesheetstopreventatmospherichazardsduringlong
storageperiod.
6.4. Donotmishandle the valves. Careless handling often results inbroken hand wheeland distorted
stems.
6.5. Donotliftthelargervalvesbythehandwheelinsteadliftthevalvebyloopingaropearoundthe
bonnet.
6.6. Inparticularthehandwheelandtheendorificesof theglobevalvesfor theconnectionwiththe
pipingsystemshallnotbedamagedneitherbymechanicalnorotherinfluences.
6.7. Valveswillbesuppliedwithdiscinclosedpositionandshallbestoredinthesamestate.


INSTRUCTIONS INST. OPERATION AND
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BV2506X DN15 a DN300
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14
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7. Troubleshooting

7.1. Duringtheremedyofthefailuresection,safetyinstructionsshallbeabsolutelyconsidered.
7.2. Whenrepairsarenecessary,pleasecontactatfollowingemailID:vent[email protected].
Kindoffailures Procedureforremedy Notes
Leakthroughbody/bonnet
gasketorinletandoutlet
flangeconnections
Tightenthe bolls&nuts while thevalveis
stillleaking.
ForsparescontactBVALVEFSCS.L.U.

Removethevalve,consideringsafety
instructionsprovidedaboveandreplace
thegaskets.

Sparepartsshallbe
orderedwithall
indicationsofthe
markingofthe
valve.See
maximum
tighteningtorques
intable2.
Leakagefoundthroughthe
stempackingduetobellow
damage
ContactBVALVEFSCS.L.U. forserviceand
repair.

Leakagethroughseats

Wheneverseatleakageisobserved,the
followingshouldbethefirstlineofaction
atsiteofinstallation/customer.
Thevalveseatstobeproperlycleanedso
thattherearenoforeignparticlesonthe
seatingsurface.

Forbalancedplugdesign,thepilothole
hastobefreefromanyparticles.Thishas
tobechecked.
Thevalveinstallationisasper
manufacturerrecommendation.
Thevalveshouldbeoperatedfromfull
opentofullcloseforatleast10‐15times
sothatpropermetallicsealingis
established.

Therequiredtorqueshouldbeappliedon
thevalvesothattheplugiscompleted
seatedonthebodyseat.Allleakagerates
aretobecheckedasperEN12266‐1.
ContactBVALVEFSCS.L.Uforserviceand
repair.

Functionalfailures CheckthestemandYokesleeve.When
thesefunctionalcomponentsareokbut
notsufficientlylubricated:
Cleanthestemthreadingareafrom
foreignparticlesandlubricatewith
greasecompatiblewiththeoperating
temperatures.
Whenthisprocedurewillnotremedythe
failure,foranyrepair:contactBVALVEFSC
S.L.U.



INSTRUCTIONS INST. OPERATION AND
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BV2506X DN15 a DN300
Code
MAN-2506X-EN
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
15

DN
Maximumtighteningtorqueforbody/Bonnetbolts
[N.m]
125 104
150 127
200 185
250 291
300 352
Table2:maximumtighteningtorqueforbody/Bonnetboltsandnuts

8. Listofspareparts
OnlysparessuppliedbyBVALVEFSCS.L.Ushallbeused.Theusageofsparesfromanyothersourcesis
notrecommendedwhichinturnceasesthewarranty.
Sparepartsmentionedbelowshallbeorderedwithallindicationsofthemarkingofvalve,onwhichthey
areused:
‐ BoltNutsorfasteners.
‐ Gaskets.
‐ Packing.
‐ EyeBolts/Crossbolts/GlandBolts
‐ Handwheel&Handwheelkeyetc.
