Mpp for Spools

DOC# PROCESS/T8857/001

PROCESS FLOW DIAGRAM FOR PRE-FABRICATED PIPE SPOOLS NOT OK RECEIPT & REVIEW OF BOMS, DRAWINGS & TDC

START JOB

OK

FIT-UP DIMENSION & ORIENTATION INSPECTION

SPOOL ID STAMPING

RECEIPT OF PIPES/ FITTINGS AS PER TDC/PO

PRODUCTION PLANNING

FITUP OF PIPES WITH FITTINGS

EDGE PREPARTION AS PER ANSI B16.25

CUTTING OF PIPES AS PER MARKING

NOT OK

MATERIAL IDENTIFICATION AND CONTROL

OK

REJECT

OK

DIMENSIONAL CHECK AS PER DRAWING

AI STAMPING/ RELEASE OF MATERIAL FOR FABRICATION

MARKING ON PIPE FOR CUTTINGS/EDGE PREPARATION & TRANSFER IDENTIFICATION MARKS BEFORE CUTTINGS

NOT OK

REWORK

PREPARATION FOR WELDING ( CHECK THE CONSUMABLES, PARAMETERS AS PER APPLICABLE WPS)

WELD VISUAL INSPECTION AS PER PROCEDURE #DDEL/ GEN/VT 02

HEAT TREATMENT AS PER PROCEDURE#DDE L/GEN/PWHT/01

NDT EXAMINIATION AS PER APPROVED QAP

PMI & HARDNESS (FOR ALLOY STEEL) AS PER APPROVED QAP & APPLICABLE PROCEDURE

FINAL INSPECTION (DIMENSIONAL, ORIENTATION & VISUAL)

WELD REPAIR AS PER PROCEDURE#DDEL/GEN/WR-01

DISPATCH

JOB COMPLETION

PACKING

PROTECTION OF INTERNAL SURFACE BY CORTEC 309 & END CAPPING

INTERNAL SURFACE CLEANING & SWAP TEST AS PER PROCEDURE #DDEL/ GEN/SP&P/01

EXTERNAL SURFACE PREPARATION & PAINTING WITH CARBOLINE CARBOZINC 11 WB

MDR/MPDR SIGN OFF BY AI & ‘PP’ STAMPING