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SISTEM PIPA GAS BAWAH LAUT DIAMETER 16 SEPANJANG + 13.5 KM DARI ORF
DI PULAU PEMPING KE PLANT GATE PEMBANGKIT LISTRIK
TANJUNG UNCANG - BATAM
PIG TRAP SPECIFICATION
0 5-Sept-13 Issued for Review HD SDC NSR
REV DATE DESCRIPTION
PREPARED CHECKED APPROVEDPMT
BOT
OWNER KOMITE
MANAGEMENT
CONTRACTORS COMPANY
STATUS CODE A = Issued for Review, B = Issued for Approval, C = Approved For Construction,D = As Built, CLD = Canceled andINFO = For Information Only
ENGINEERING PROCUREMENT CONSTRUCTION AND INSTALLATIONSISTIM PIPA BAWAH LAUT DIAMETER 16 SEPANJANG+13.5 KM
DARI ORF DI PULAU PEMPING KE PLANT GATE PEMBAKIT LISTRIKTANJUNG UNCANGBATAM
Contract No. : 05.001.PJ/611/KONSORSIUM PLNBUBE/2013
PLNBUBE/ORF-KPM-40.5.005CLASS REV. STATUS
1 0 A
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Contents
1 INTRODUCTION............................................................................................................41.1 GENERAL....................................................................................................................... .31.2 SCOPE.............................................................................................................................41.3 MANUFACTURERRESPONBILITY...................................................................................... 41.4 Definitions...................................................................................................................................5
1.5 Abbreviations..............................................................................................................................5
2 REFERENCE DOCUMENTS................................................................................................ 62.1 National / International Codes and Standards.............................................................................6
2.2 Applicable Project Documents....................................................................................................7
2.3 Conflicing Requirement...............................................................................................................73. DESIGN & MANUFACTURE REQUIREMENT................................................................8
3.1 General.........................................................................................................................................8
3.2 Materials.......................................................................................................................................8
3.3 Barrel............................................................................................................................................9
3.4 End Cloure................................................................................................................................. ..9
3.5 Branch, Fitting and Flange..........................................................................................................10
3.6 Supports.................................................................................................................................... 10
3.7 Fabrication..................................................................................................................................11
3.8 Surface Preparation and Coating................................................................................................12
3.9 Equipment Tagging....................................................................................................................124. INSPECTION AND TESTING REQUIREMENT.............................................................13
4.1 General.......................................................................................................................................134.2 Hydrostatic Pressure Test...........................................................................................................14
4.3 Surface Preparation....................................................................................................................14
4.4 Weight and Dimensional Control...............................................................................................14
5. PACKING AND PREPARATION FOR SHIPMENT.........................................................14
5.1 General........................................................................................................................................15
5.2 Packing........................................................................................................................................15
6. MANUFACTURER'S DOCUMENTATION.......................................................................15
6.1 Language and Format of Documents.........................................................................................15
6.2 Vendor Data Requirement List (VDRL)...................................................................................15
6.3 Document Review......................................................................................................................15
7. QUALITY ASSURANCE AND QUALITY CONTROL.................................................... ...16
Appendix A - Typical Main Dimension of Pig Trap........................................................................17
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1. INTRODUCTION
1.1 General
Consortium PT Pelayanan Listrik Nasional Batam (PLNB) - PT. Universal Batam Energy (UBE) will
perform the development of new 16 Subsea Gas Pipelines system along the + 13.5 km from ORF
Pemping Island to Plant Gate of Gas Power Plant in Tanjung Uncang Batam. Which is refered toas Pipeline Section #2. For a long offshore pipeline approximately 12, 5 km and 1 km for the
onshore. As for the pipeline section # 1 will be constructed by PT Premier Indonesia as Gas Seller
which this pipe will be built with Hot Tapping sistem of WNTS existing line heading to ORF facilities
on the Pemping Island.
The first time this pipeline will transport the gas 40 MMSCFD respectively owned by PT PLNB and
PT UBE and will increased to 55 MMSCFD within 6 years after the first commercial date accordance
with Gas Sales Aggrement (GSA GSA # 3 and # 4). The Gas pipeline system is designed with
pressure 550-710 Psig at a received point with a gas maximum flow capacity 125 MMSCFD to meet
transportation needs in the future. The both parties will use any volume of this gas for its own interest
to drive the new gas turbine power plant, to be built in Tanjung Uncang Batam with an installed
capacity approximately 210 MW.
Location of the pipeline and associated facilities are illustrated in Figure 1-1 below:
Figure 1-1 Pipeline Route Layout
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1.2 Scope
This Specification defines the minimum requirements for the design, materials, manufacture,
inspection,testing, surface preparation, coating,and delivery of PigTraps (Launcher and Receiver)
for 16 Subsea Gas Pipelines System along 13.5 km from ORF Pemping Island to Plant Gate of
Power Plant in Tanjung Uncang - Batam.Anydeviation from this Specificationshallbe approved,in
writing,by COMPANY
1.3 Manufacturer Responbility
TheVendor/Manufacturer shall beresponsible for design,supply, manufacture, inspection,testing,
painting, export protection and deliveryof pig trap (launchers/receivers) in accordance with this
specification,referenced codes, standards and projectDatasheets,specificationsand drawings.
1.4 Definitions
The definitionsbelowshallapply:
COMPANY
Vendor/Manufacturer
Project
Consortium PT PLNB PT UBE
The party which provides/manufactures equipment
/ material specified and orderedby Contractor
16 Subsea Gas Pipelines System along the + 13.5 km from
ORF Pemping Island to Plant Gate of Power Plant in
Tanjung Uncang Batam
1.5 Abbreviations
API AmericanPetroleum Institute
ASME American Society of Mechanical Enginee
ASTM American SocietyforTesting and Materials
AWS American Welding Society
BPV BoilerandPressure Vessel
BS British Standard
COG Centreof Gravity
Div. Division
MT MagneticTest
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NACE NationalAssociation ofCorrosion Engineers
ISO InternationalStandards Organization
ppm Part Per Million
PSL Product SpecificationLevel
PWHT Post Weld Heat Treated
RT Radiographic Test
Sec. Section
SMYS Specified MinimumYield Stress
Std. Standards
Spec. Specification
UBE UniversalBatam Energy
UT UltrasonicTest
VDRL VendorDataRequirement List
2. REFERENCE DOCUMENT
Thelatest editions and addendaof thefollowingCodes and Standards shall bethe Reference
Documentsfor this Specification.
2.1 National/International Codes andStandards
Standar Nasionallndonesia (SNI):
SNI3474:2009 Standar Nasional Indonesia: Sistim Penyaluran DanDistribusi Pipa
Gas.
American Society of Mechanical Engineers (ASME):
ASMEB31.8 GasTransmissionandDistribution PipingSystems
ASME B16.5 PipeFlanges and FlangedFittings
ASME BPV Sec.V Non-DestructiveExamination
ASME BPVSec.VIII Div.1 ASME Boilerand Pressure VesselCode
ASME BPV Sec IX Qualification Standard forWeldingandBrazingProcedures,Welders,
Brazers,Welding and BrazingProcedure.
American Petroleum Institute (API)
APISpec.5L Specification for Line PipeAPI 1104 Welding of Pipe Lines and Related Facilities
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American Society for Testing Materials (ASTM)
ASTM A36 SpecificationforStructuralSteel
British Standard (BS)
BSEN 10204:2004 MetallicProducts - Typesof Inspection Documents
National Association of Corrosion Engineers (NACE)
NACE MR0175 Sulphide Stress Cracking Resistance Metallic Materials for OilfieldEquipment
InternationalStandard Organization (ISO)
ISO 8501 Preparation of steel substrates before application ofpaints andrelatedproducts
ISO9001:2000 Quality Management Systems Requirements
Society ofNondestructive Testing (SNT)
ASNT-TC-1A Personnel Qualificationand Certificationin Non-destructiveTesting
2.2 Applicable Project Documents
Datasheet and Drawings:
PLNB-UBE/ORF-KPM-40.8.005 Pig Launcher and Pig Receiver Data Sheet
PLNB-UBE/PLO-KPM-10-9-001 Pig Launcher Pemping Island
PLNB-UBE/ORF-KPM-10-9-004 Pig Receiver Tanjung Ucang
2.3 Conflicting Requirements
Inthe event of conflicting technical requirements,the order of precedence shall be as follows:
1) LocalAuthority orStatutoryRegulations2) Requisition/PurchaseOrder3) Datasheets4) ThisSpecification5) Referenced Project Specifications
6) Referenced National/International Standards
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3. DESIGN& MANUFACTURERREQUIREMENT
3.1 General
3.1.1 Pig traps are requiredfor usein steel pipelines andconsidered withinthe scope of the
transportationpipeline code, SNI3474:2009/ASME B31.8.3.1.2 The Vendor/Manufacturer is responsible for design calculations for all pressure and
structural parts of the equipment, for ensuring that theequipment design isadequate to
withstand allinternalandexternal loads, and formeetingthe relevant coderequirementsfor
design,fabrication, examination,testingand certification.
3.1.3 Corrosion allowance shall be as specified in the Purchase Order or in datasheet and
drawing attachedtothePurchaseOrder.
3.1.4 Additionalthickness shall beprovidedforthe corrosionallowance specifiedin
thePig Launcher and Pig Receiver Datasheet.
3.1.5 The overall dimensions for pigtraps shallbein accordance with thedrawing specified inthe
PurchaseOrder, orthe design drawing attached to thePurchaseOrder.
3.1.6 Pig signalers,installation,start-up and commissioning,and bolting and gasketfor nozzle donot formpartofthis specification, andwill be supplied by others.
3.1 Materials
3.2.1 Materialofconstructionshall beinaccordance with materials as specified on theEquipmentData sheets.
3.2.2 Materials of construction ofthe shellsshallbeidentifiedwith the applicable API Spec 5L
PSL2,including materialgrade.
3.2.3 All materials for pressure parts and weldedattachments to pressure partsshall havefull
chemicalanalysis andmechanical test certificationtoBSEN10204:2004 type 3.1or ISO
10474 type3.1B.3.2.4 Allcarbonsteels shall be normalisedand fully killed and,unlessotherwiseagreed, be made
to fine grainpractice.3.2.5 Themaximumcarbonequivalent(CEQ)refers to APISpec 5L-PSL2 shallbe0.43% based
on theformula:
The carboncontent shallnot exceed 0.23%forforging. Thebasematerialand welds shall
have amaximal hardness of 325HV 10. Base metalhardnessreading shall be madein
accordance with ASTME920n each heat at 5 random locations. The actual yield
tostrength ratio shall not exceed 0.9.
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3.2.6 Materials supplied by Vendor/Manufacturerfor piping elements or structural attachments
shall conform to the requirements of the applicable code and shall be traceable to mill
certificates.Material selectionmay be further limited in this specificationor inthePurchase
Order.
3.2.7 Should anymaterials proveunsatisfactory during fabricationthey shallberejectednot with
standing any previous certification ofsatisfactory examination ortests.
3.3 Barrel
3.3.1 The internaldiameterof the minor barrel should be the same as that of themain line.
However, transitions inthe internal diameter dueto wallthickness variations greaterthan
0.095-inch(2.4mm) shall be tapered toa maximum angle of 14 to the pipe allow the
smooth passage ofa pig.
3.3.2 Pigtrapshould bedesigned forthelongestpig that willbeused(usually anintelligentpig)
plus amarginof 10%.Dimensionsforpig traps designedfor intelligentpigs are shownin
Appendix A.
3.3.3 Thereducerbetween themajorandminor barrelshallbe eccentric withthebottomofthe
entire barrel at the same level. For horizontal pig traps the barrel may be sloped
(typicall1:100) down towards the end closure to improve draining of liquids fromthe barrel.3.3.4 Blindflanges areto be providedfor each nozzle (exceptthe end closure). Blind flanges
should beof the samerating as theflanges.
3.4 End Closure
3.4.1 The pigtrap shallbe equipped withaquick opening closure,designedto allow one man
operationfor both opening and closing,witha pressureinterlockto prevent opening of the
doorwhilethe barrel is pressurized.
3.4.2 The end closure shallconsist ofthe following components:
A removable door, which provides full-bore access when open, and terminates andseals the bore when closed.
A welding end hub,for joiningtothemajor barrelof a pigtrap.The material usedfor thewelding end hub shallbe compatible withthe major barrelmaterial,as providedinthedata sheet.
A closure handling device,suitable tolift,hinge or swingthe door. Whenthe handlingdevice is attached tothe closure, it shall be attached to the welding hub, not to themajorbarrelof the pig trap
Ring seals forpressure containment (see 3.4.9).
Two safetydevicestoprevent inadvertent opening of the closure beforethe pig trap is
depressurized (see 3.4.7&3.4.8).
3.4.3 Quick opening closures shallconformto the general requirements ofASMEVIII Div.1,Sec.
UG-35.Attention shall bedrawn tothe requirement for afail-safedesignof the opening
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mechanism; specifically,the failureofanypart of the opening mechanismshall leave the
closureclosed rather than open.
3.4.5 Thedesignofquick opening closures shall besuitablefor permanentlocation inanopen
environment.
3.4.6 Quickopening closure with exposedscrew expanders orcaptiveratchetbraces shall notbe
used.Screwtypequick openingclosures that have novisible means of identifying if the
closureispositively closedpriorto pressurizationshall not beused.
3.4.6 Quickopening closure with exposedscrew expanders orcaptiveratchetbraces shall notbe
used.Screwtypequick openingclosures that have novisible means of identifying if the
closureispositively closedpriorto pressurizationshall not beused.
3.4.5 Thedesignofquick opening closures shall besuitablefor permanentlocation inanopen
environment.
3.4.6 Quickopening closure with exposedscrew expanders orcaptiveratchetbraces shall notbe
used.Screwtypequick openingclosures that have novisible means of identifying if the
closureispositively closedpriorto pressurizationshall not beused.
3.4.8 An interlocking system between various valves and the end closure door operating
mechanism may be considered to protect personnel and equipment depending on the
service,trap locationand the planned piggingfrequency.The necessity for interlockingshall
bedecidedby the Principal. Interlocksystem featuresmaybe micro-processorsolid-state
type logic,mechanicalkey systems or relay-based.
3.4.9 The activationofthe seals shall be suchthatthefluidwithinthe trapis containedat any
pressure between1 bar(abs) andthepig trapdesign pressure.Elastomeric materialsfor
ring seals shallresist explosive decompressionandshallbe suitableforlong-termexposure
to the transported fluid at the design pressure andtemperature conditions. The cross
section of the seals shall notexceed 7-mm in diameter fordesign pressureof 150 bar and
above.
3.5 Branch,FittingandFlange
3.5.1 Fullreinforcements shallbeprovided on all branch connections.
3.5.2 Branchconnections shalleitherbe welded,forged or extruded.Reinforcing pads required by
the specifiedcode shall befully welded andshall be provided with a vent hole.The vent
hole shall be tappedwith a 3mm to 6mm pipe thread.Thetapped hole shallbefilled with
heavy grease.
3.5.3 All flanges shall be asperASME B16.5.
3.5.4 All flanges shall have the same bore asthepipe.
3.5.5 All flangesand branchfittings shall beforged carbonsteel fittings with the same specified
yieldstrength asthepipe.
3.6 Supports
3.6.1 Thepigtraps shallbe provided withsaddle supports.Permanentsaddles shallbeusedtosupport and restrain pig traps and these shall bedesigned to carry the weight ofthe pig trapssystemfilledwith watertogetherwiththe weightof the pigs.
3.6.2 Structuralsteelusedfornon-pressure containingparts shallbe equivalent toASTM A285orbetter.
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3.6.3 The supportsunder the barrelshall be ofthe sliding type to compensateforexpansionof the unrestrainedpartofthe pipeline.
3.6.4 Other supports may be fixed if design calculations indicate that sufficient flexibilityis incorporated in the pipework to compensate for any possible axial and transversemovements.
3.6.5 Supports may need to be electricallyisolatedwhere isolating joints arenot used.3.6.6 Supports should be positioned such that the pig trap valves can be removed
for maintenance orreplacement withoutremovalof thebarrel.
3.7 Fabrication
3.7.1 Fabrication of pig trap shall be in accordance with the applicable design code (SNI
3474:2009/B31.8) andstated inthis specification.
3.7.2 Allwelding procedures, qualificationofwelders and welding procedurequalifications, design
and preparation of joints, inspection and testing, standards of acceptability of welding,
repairs and radiography shall be fullyinaccordance withAPI Std.1104orASME BPV Sec.
V andASME BPVSec.IX, and shallbedocumented before fabricationcommences.
3.7.3 Single-welded butt joints are permitted for circumferential joints and shall be 100%
radiographically tested. Vendor/Manufacturer shall provide ultrasonic tests where
radiography produces questionable results. In the event that welds performed on any
forging cannot be100% radiographed, 100%UTorwetMTshallbeutilised.
3.7.4 UT is required onthe shell materialwhere locally reinforced fittings areto be welded.Prior
towelding allweldends are also tobe checked usingultrasonic inspection.
3.7.5 The WeldingProcedureSpecification (WPS) shall be submitted to COMPANYforapproval
and welding shall not proceed untilwrittenapproval of the welding procedure specification
has been received.
3.7.6 Temporary, permanent orconsumable backing strips shall notbeusedfor any weld whether
longitudinalorcircumferential.
3.7.7 Peening ofwelds shallnot be permitted.
3.7.8 Welds attachingnon-pressureparts suchas pipe support clips andlugstothe surfaceofpig
trap barrelshall be examinedonall exposed surfaces by Magnetic Particle (MPI) or Dye
Penetrant (DP) methodinaccordance with therequirements ofcodes and standards.
3.7.9 All butt welded joints shall befullyradiographed(100% radiography) afterpostweld heat
treated (PWHT). Completed weld shallalso undergo100% MagneticParticle Inspection or
DyePenetrant checkinallcases prior toradiography.
3.7.10 The wrapper plate to which saddle supports are attached shall be examined by both
Ultrasonic andDyePenetrant testing afterPWHT.
3.7.11 The pig traps shall be post weld heat treated (PWHT) when specified on the design
Datasheet or as required by codes and standard. The PWHTshall be performed in
accordance with the codes andstandards.The detailed heat-treatment procedure shallbe
submitted for COMPANY approval.
3.7.12 Heat treatment must be carried outafter completing allformingand welding and before final
NOT.Weldingmay becarried out afterPWHTonly whencomponents will bedamagedby
heat suchas valves andclosure seals.In this case,localisedPWHTmay be carried outon
the finalwelds,giving due attention to the protection of the componentsatrisk.
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3.8 Surface PreparationandCoating
3.8.1 Aftercompletionoffabrication andtesting,the vessels shall bethoroughly drainedofwater
and dried.
3.8.2 Allsharp surface protrusions andall weld splattershall be removed(flush) prior toblast
cleaning,toISO8501-1Grade 2Y2.
3.8.3 Weld spatter and remains of temporary welds, deposits or surface defects shall be
eliminated by appropriate means;removalby deepgrindingis subject tothe approvalofthe
COMPANY.
3.8.4 The pig traps shallbepaintedwithprimeronly.All bare surfaces shall be coated withtwo
coats ofalkyd primer. Either the first or second coatshall be tinted with 1 or 2%ofblack
alkyd enamel to ensure that the two fullcoatsare applied. Bothprimercoats must be
applied by brushing and must be well worked into the surface. The minimum dry film
thickness ofeachprime coat shallbe40microns.
3.8.5 Final coats shall be applied by Vendor/Manufacturer. Primershall be applied following
satisfactory completionofshoptesting andall functional tests.
3.9 EquipmentTagging
3.9.1 All equipment, sub-assemblies and select componentsmust be tagged. Generally the
COMPANYwill allocate equipment and component tagsduring detailed design. Inthe
eventthat theVendor/Manufacturer hasthe detailed design of apackagewithinhisscope,
tagging inaccordancewith the procedure shall be proposedbythe Vendor/Manufacturer
andapproved by the COMPANY to ensureproject consistencyto avoidduplications.
3.9.2 All documents and drawings produced by the Vendor/Manufacturer applicable to the
equipmentbeing supplied shall includeproject-specific equipment tags.
3.9.3 All items supplied must be identified by means of a nameplate, tag engraving, hard
stamping or any other indelible method. Paintingis not considered sufficientlylasting.
3.9.4 All nameplates shallbe of a non-corroding material(such asSS316L) and shallbe fixed to
the item by amethod that precludesunauthorised casual removal.
3.9.5 Each piece ofequipment having a nameplate as specified bythepurchase orderand/or
Equipment Datasheet shall have the nameplate permanently protected during welding,
painting and shipping. The followinginformationshallbe stamped onthe nameplate.
(a) Purchase OrderNumber
(b) Item Name andEquipmentNumber
(c) Manufacturer
(d) Serial Number
(e) HydroTest Pressure
(f) Year Built
(g) Maximum Working Pressure
(h) MaximumTemperature(i) Maximum TestPressure
(j) Design Code
(k) Material Grades
(l) Nominal Sizes
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3.9.6 Connectionsfurnished onthe equipment shallbeidentified and shallbetagged to comply
withVendors/Manufacturers connectiontable orgeneralarrangement drawing.
4. INSPECTION ANDTESTING REQUIREMENT
General
4.1.1 Inspection shall be performed before coating or paint is applied4.1.2 All components shall be visualy examined in accordance with ASME div.1, part UG 93.
4.1.3 Forthe end closure, allmating elements and flangesmachined surface, door hinge,hinge
attachments andlocking mechanisms shall be subject to magneticparticleinspections. Any
defect shallconstitute a basis for rejection.
4.1.4 Third PartyInspectionis required forwitnessing and certification fornon-destructive and
Other testing and examination.
4.1.5 The COMPANYreserves theright to inspectmaterial,manufacturing process, testing etc.
Such inspection does notrelievethe Vendor/Manufacturerof the responsibility of suitable
design and workmanship.
4.1.6 Vendor/Manufacturer shallsubmittoCOMPANY a detailedInspectionandTest Plan(ITP)
for approvalwithscheduled activities and acceptance criteria,before startofmanufacturing.
4.1.7 Access shallbemade available to the COMPANYsrepresentative at any timeduring the
manufacture of the equipment and packages. For all witnessed tests the
Vendor/Manufacturer shallgivethe COMPANY the agreednotice period.
4.1.8 All NDT including radiographic, ultrasonic, magnetic particle or liquid penetrant
examinations shallbe performed before andafter Post WeldHeatTreatment(PWHT).
4.1.9 NDTshall be conductedasfollows:
UTshallbein accordance with ASME BPV Sec.V,Articles 5&23;
X- Ray shallbeinaccordance withASME BPVSec.V,Articles 2 & 22; and
MTshall bethe wet methodand in accordance withASME BPVSec.V,Article 7&25.
4.1.10 Results shall be reviewed, interpreted, and evaluated in accordance with the following
criteria :
X-ray : ASME BPV Sec VII Div. 1, Section UW51;
MT : ASME BPV Sec. VIII. 1, Appendix 6;
UT : Forwelds, ASME BPV Sec. VIII Div. 1, Appendix 12 ;and
UT : For Forging, ASME Sec. VIII Div. 2, Section. AM203.2 (c)
4.1.11 Alloperators,including for DyePenetrant orMagneticParticleInspection,mustbequalified
to SNT-TC-1Alevel,as a minimum.
4.1.12 Any manufactured part,which doesnotcomply with the requirements, oranymaterialwhich
shows defectduringinspection, willberejected. In such event,Vendor/Manufacturerwillbe
notified in writing.
4.1.13 No goods shallbe packed, sealedordispatched priorto receipt ofa writtenrelease note by
the COMPANY or his appointedagent.
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Document Title :
PIG TRAP SPECIFICATION
Document No. :
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1
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4.2 Hydrostatic Pressure Test
4.2.1 Allequipmentshall be shophydrostaticallytestedinaccordance to coderequirements(Ref.
ASME BPV Sec.VIII Div. 1) based onthe maximum allowable working pressure.
4.2.2 Hydrostaticpressuretests shallbe carried out by Vendor/Manufacturer at a testpressure
basedon a fiber stress of90%of the specified minimumyield strength(SMYS)intheshell
orat theapplicable test pressure listed in ASME B16.5, whichever is thelower.
4.2.3 Thetemperature of the pig traps materialandtestliquid shallnot beless than 50Fduringthe hydrostatic test.
4.2.4 Freshwatershall beusedfor all testing. Forequipment ofstainless steelconstruction, or of
partly stainless steel construction, the test fluid shall not contain more than 30 ppm
chlorides.
4.2.5 Pressure testing is to be conductedusing calibratedtest gauges.Test pressures shall be
held a minimum of 4hours.
4.2.6 As soon as possible aftercompletion of thehydrotest, allequipment shall be drained, and
dried throughout. Stainless steel equipment prior to drying shall be rinsedout withwater
containing less than 5ppm chlorides.
4.2.7 All reinforcing pads,doubler plates andwrapperplates shall be pneumatically tested at a
minimumpressure of 1bar,using soap solution,before stressrelief and/or hydrotest.
4.2.8 All tests are to be carried out in the presence of the COMPANYs inspector and/or
representative.
4.3 Surface Preparation
4.3.1 After acceptance of hydrostatic test, all external surface shall be prepared and
prime coated. The vendor proposed method of surface preparation shall be approved
by theCOMPANY.
4.4 Weight and Dimensional Control
4.4.1 A Weight / Centre of Gravity (COG) Datasheetshall besubmitted withthe quotation for
each package,detailingthepackage weight, dimensionalenvelope and coordinates of the
COG in relationto the package envelope. At the quotation stage,the requiredaccuracyfor
the weightshall be+/- 10%, and+/-5% forthelengthparameters.
4.4.2 TheDatasheetshallbe periodically re-issuedduringthe course of designandfabricationto
assist ongoing platform design verification with closer tolerances.A final "as-built" issue
shallbe basedonactualmeasurements carried outinthe shop of thecompleted equipment.
5. PACKING AND PREPARATION FOR SHIPMENT
5.1 Genera l5.1.1 Cleaning, packing,shipping and storage requirements shall be subject to the
COMPANY approval.
5.1.2 No pig traps section shall be released for shipment without the COMPANY prior
written authorisation.
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Document Title :
PIG TRAP SPECIFICATION
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Rev. Date :
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5.2 Packing
5.2.1 The package and protection of equipment shall be suitable for inland and/or
seatransportation and for a storage period as defined in the project. Supply shall
include complete export boxing packingincompliance with this requirement.
5.2.2 Allequipment andpipinglikelyto vibrateduringtransportation shall be properlybraced to
preventdamage.
5.2.3 Desiccantbags shall belocatedin allcapacities to preventbuilt-up ofcondensation and
warningnoticesshallbeattached.
6. MANUFACTURERSDOCUMENTATION
6.1 Language and FormatofDocument
6.1.1 TheManufacturersdocumentationshallbe:
Identifiedasrequiredin the contract;
InEnglish language;andIn S.1.units (exceptdiameterof nozzles and flanges whichshall beinnominal inchsize
6.2 VendorData Requirement List (VDLR)
6.2.1 Following documents shallbe furnishedas aminimum requirement:
(a) Three copies of the certified mill test report showing the chemical and physicalproperties foreach item of materialfurnished bythe Vendor/Manufacturershall beprovidedforCOMPANYs approval.
(b) A report of resultsobtainedfrom MT and X-ray ofwelds indicating alldefects wereidentified andthe disposition ofall repairs shallbeprovided.All original radiographsshallbe availableto the COMPANY for review uponrequest.
(c) Weldidentification drawings of thefabrication andthe weldnumber foreachweld.(d) A certifiedcopyof all hydrostatictest charts shall be provided.
(e) Two yearsrecommendedspare partslist.(f) Installation,Operation,and Maintenanceinstructions/manuals coveringend closure,
andotherequipment supplied in thepig traps packages.
(g) Assemblydrawings withcorrespondingkeyedpartslists of allequipmentsuppliedinthe pig traps packages.
6.3 DocumentReview
6.3.1 Consistentwiththeinitiative to minimize documentation,only documents listed in the
VORLwillberequired for review and approval by COMPANY.
6.3.2 The Vendor/Manufacturer shall check and verify the completeness of the Vendor
DataRequirement List (SDRL) proposed and highlight any discrepancy or missing
required documents. In addition, the Vendor/Manufacturer shall complete and confirm
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PIG TRAP SPECIFICATION
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the accuracy of the Vendor/ManufacturerDocumentMasterList to ensure the expedient
transmittal of documentation.
7. QUALITYASSURANCE AND QUALITY CONTROL
7.1.1 Vendor/Manufacturershallestablishand maintain aquality assurance systeminaccordance
with ISO9001:2000oran approved equivalent. The COMPANY shall have the right to
undertake such audits as he deems necessary to assess the effectiveness of the
Vendors/Manufacturersquality system.
7.1.2 A project-specific, draft Quality Planshallbe submittedby the Vendor/Manufacturer withthe
bid.Thecontents andformat must be agreed withthe COMPANY, priorto order placement.
A detailed, firmInspection and TestingPlan (ITP) must be submittedwiththe QualityPlan.
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PIG TRAP SPECIFICATION
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Appendix ATypical Main Dimension of Pig Trap
MARK DESCRIPTION MARK DESCRIPTION
N1 Inlet/Outlet N7 Pressure gauge
N2L Kicker/BypassConnection
for Launcher
N8 Balancing Line
N2R Kicker/Bypass
Connection for Receiver
(not use for Pig Receiver)
N9 Purge Connection
N3 Vent Connection N10 Drain
N4 Pressure N11 Drain
N5 Pressure Safety Valve N12 End Closure
N6 Pig Signaler
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Document Title :
PIG TRAP SPECIFICATION
Document No. :
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Rev. Date :
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Pipeline Diameter
(inch)(1)Dimension
(m)(2)&(3)
D1 D2 N2L/N2R AL BL AR BR
6 8 2 2.8 1.5 2.8 2.8
8 10 3 4.1 1.5 3.9 3.9
10 12 4 4.3 1.5 4.3 4.3
12 16 4 4.3 1.5 4.3 4.314 18 6 4.8 1.5 4.8 4.8
16 20 6 5.1 1.5 5.1 5.1
18 22 6 5.1 1.5 5.1 5.1
20 26 8 5.1 1.5 5.1 51
24 30 8 5.7 1.5 5.7 5.7
Notes :
1. Diameter of pipework (drain, vent, balance, line, etc) shall refer to project P&ID
2. L = related to Pig Launcher, R = related to Pig Receiver
3. These lengths are extreme figures, based on data for presently available magnetic flux and ultrasonic tools. The extreme
dimension will be useful for conceptual design but the user should check the lengths of the latest available tools from
various relevant manufactures when performing detailed design since there are significant variations between tools
(particularly between magnetic flux and ultrasonic tools). Thus it may be decided to design for only one type of tool or the
use of temporary extension pieces for the major barrel could be considered.