Stages of Inspection

Approval of detailed fabrication drawings submitted by vendor/client. Discuss and confirm schedule of work and review progress.
Material identification based on Mill Certificates or testing at Laboratories.
Stamp transfer on all pressure parts.
Testing and approval of welding procedures and welders.
Approval of Electrodes, Filler Wires and other welding consumables, etc.
All set ups of long seams, circumferential seams and back chips, etc.
Dishes after forming.
Set ups of all nozzles, manways, hand hole pads, etc., and back chips of the same. Checking of critical dimensions for matching parts of agitators.
Viewing of Radiographs, heat treatment procedures and any other NDT/DT.
Checking of Tube Sheets with GO and NO GO Gauges for tube hole tolerances, Ligaments, Grooves, etc.
Mock up test to approve expansion of Tube to Tube Sheet joints and welding of tube to tube sheet.
Dynamic balancing of Agitator shaft above 100 RPM and static balancing of shafts below 100 RPM along with anchors / impellers, etc.
Running trials outside the vessel and measuring deflection with dial gauge for agitators.
Running trials inside the vessel at operating pressures.
Hydraulic test, pneumatic test, vacuum test as required.
Final dimensional checking, finishing, painting, polishing, etc.
Approval of packing, supporting of shaft inside the vessel as assembled, etc., clearance for transportation.
Submission of status report every two weeks.
Preparation and submission of inspection documents to client.