~ SAMSUNG ENGlNEERING

PROCEDURE MANUAL

SPQOO01EPN

General Procedure

Weld Map Marking Procedure

REY o DATE 2010620

SAMSUNG ENGINEERING eo LTO

SPQ0001EPNPROCEDURE MANUAL

REV o1- Weld Map Marking Procedure r DATE 2011 OO 21 PAGE 2 OF 5

2 1 2 Preparing (Weld Map Marking) Isometric drawings from SECL Engineering Department (HO) shaU be marked lor construction M1en iexclhe

document controller submits iexclhe isometriacutec drawings SECL piping department should review and register them as

per revisiOn status Alter Ihat SECL piping department (Construction) wi ll issue iexclhe ISO Drawings lo subcontractor

ler we ld map marking lor identificalion 01 field welds and lor spool control The we ~ding symbol and abbreviation are

used l er he identification 01 the jo int number spool number modifications cutling amp re-welding and addiUonal

welds The seqtlence 01 iexclhe weld map marking is given by Append ix I flowchart

For lsometric Drawings on reviSion lero (O) the Piping Engineer al head office sIlall issue an auto-generated weld

map For long straight pipe lines joinls are given alevery 12m (as per the slandard pipe labricalion length Ilthe

pipeatsi tedonotmatchwilhtherequired12mallsupplementaljointSshall be regarded as addilionaljoints

213 Distribulion M1en Ihe weld map marking on the drawing has been completed by the Subcontractor SECL piping depanment (Construction) and QAQC Depanment wil l review and check the draNIacuteng If there are no comments il slla ll be stamped asAFC [Approval lor Construction]

AFC stamped original isometric drawings shall be maintained by Piping Department (Construction) one (1) copy 01

isometric drawing shall be sent to subcontradors lor their action one (1) copy lor QNQC department lor input weld

plan dala in FMCS

214 Input olWeld Plan Data

When AFC Isomelric Drawing has been received from piping department QAQC Department shall ensure lo

correct weld plan dala in FMCS

22WeldMap

221 Marking 01 joinl numbers should be covered all weld joints thread joints bol joints aOO attac1ment

welds(spacesupportpadplug etc

222 Care should be taKen to avoid the duplication ofweld joint No on cont inuation drawing

223 AII rolary equipmenl nozzle connection point should be field weld (check with equipment)

224 In case 01 attachment jolnt no inm-dia will be considered as progress II is required only fo r NDT identificationsand records (consider counling factor as O)

225 Duringselectionoll ieldjointsfollowingaspectsshouldbeconsidered -Sizeolspool loreasy handling transportabonamp installat ion -Tominimize scaffolding - Installat ionareacondilions -Lengthofsuppliedpipes

SPQOOO1EPNPROCEDURE MANUAL

EfllGlNEERING REVO1- Weld Map Marking Procedure

[ DATE 2011 06 21 PAGE 3 OF S

23NeldJointDetail

8- 231 weiexclding No on ISO drawing will be gradually given in Une wtth the flow direction

) ltlo o~-c

0(5 o 2 32 Shop joint numbers should be marked by round

o 234 Fleld join number should be marked by hexagon

G 235 Reinforced pad Joint No is given as follows (Joint No 2 and 3 are reinforced pad joints)

CJX) 236 Long pipeline Join No should be marllt9d by

SPQOOO1EPNPROCEDURE MANUAL

EfllGlNEERING REVO1- Weld Map Marking Procedure

[ DATE 2011 06 21 PAGE 3 OF S

23NeldJointDetail

8- 231 weiexclding No on ISO drawing will be gradually given in Une wtth the flow direction

) ltlo o~-c

0(5 o 2 32 Shop joint numbers should be marked by round

o 234 Fleld join number should be marked by hexagon

G 235 Reinforced pad Joint No is given as follows (Joint No 2 and 3 are reinforced pad joints)

CJX) 236 Long pipeline Join No should be marllt9d by

SPQOOO1EPNPROCEDURE MANUAL ___ ~~~~ING

REVO Weld Map Marldng Procedure

DATE 2011 06 21 PAGE 4 OF 5

iexcl-37 8pOQljOUld be numbered as SPQ01 SP-002 SP-003 aOO marked by rectangle

Spool

238 Attachmenl Joinl should be marked as following (For field atlachment joint 2 34 - hexagon is applied)

Suppor1Jointshallbe90Dsaries (ifrequired)

8 8011 Join shall be 800 series (ifrequired)

e OtherJointsshallbe700series (ifrequlred)

G 3 Rework Control

31 General Dunng Plpmg Fabncallon Work Al RewQI1laquos (Cuttlng amp Re-weldmQ and Addl~onal JOInl) shal be controlled and

recorded

32 ReworkAbbreviation

ReworkTag

Due lo SECL Construction Faul CC1CC2

Cuttmgamp Re-welding Dua to SECL Englneering Faul EC1EC2

DuetoSubcontractorFaul1 SC1SC2 middotmiddot

Oua lo SECL Construction Fault CA1CA2 middotmiddot

Addilional W9ldlngJOlnt Due lo SECL Engineering Fault EA1 EA2

DuatoSubcontractorFault SA1SA2 middotmiddot

(Englneering Fault indudesnolonlyengineelingfaullsbulalsoprocuremenlfaulls)

Ex) If Joinl No 1 is cut and re-weldad dua lo SECL Engineering Fault JOlnt No 1 will be deleted and Joint No

1EC1will be added

Appendlx I

Appendix I Welding Map Flow Chart SPQ0001EPN

REV 0

PAGE 1 OF 1

Welding Map Flow Chart

SECL Document Control Distrlbule ISO Draving lo Subcontractors

Subcontractor Subcontraclor shall draw up W9ldlng Map

bull SECL Piping I SECL QAlQC

Relliews and comments the related INelding Map from Subcontractor (if any comments Subcontractor shall re1Iact lhe comments) then retum to Subcontractor with Approved

bull SECL QAlQC (Control ofWeld Plan Data) I SECL Piping (Control of Welding Result)

SECl QAJQC shall inpul weking plan according ISO DWG in FMCS

Then after corniucting welding SECL Piping input welding data in FMC dally base then

bull SECLQAQC

QACe shall Wfify welding data according to OC inspectian reporto bull

SECLPlplngbullSECl Piping leam refers FMCS welding input status for monlhly progress payment

measurlng end final adjustment

Appendlx I

Appendix I Welding Map Flow Chart SPQ0001EPN

REV 0

PAGE 1 OF 1

Welding Map Flow Chart

SECL Document Control Distrlbule ISO Draving lo Subcontractors

Subcontractor Subcontraclor shall draw up W9ldlng Map

bull SECL Piping I SECL QAlQC

Relliews and comments the related INelding Map from Subcontractor (if any comments Subcontractor shall re1Iact lhe comments) then retum to Subcontractor with Approved

bull SECL QAlQC (Control ofWeld Plan Data) I SECL Piping (Control of Welding Result)

SECl QAJQC shall inpul weking plan according ISO DWG in FMCS

Then after corniucting welding SECL Piping input welding data in FMC dally base then

bull SECLQAQC

QACe shall Wfify welding data according to OC inspectian reporto bull

SECLPlplngbullSECl Piping leam refers FMCS welding input status for monlhly progress payment

measurlng end final adjustment