PROJECT PERSPECTIVE.

The following sequence can be adopted in the process of a piping modification activity of an expedition pump,installed in an export process line ,they may includes the following steps or procedures:
Disconnect suction and discharge pipe work including the auxiliary pipe work
Clear and flush lines before any hot work.
Cut off flange after valve on suction and discharge lines
install spectacle blind and flange suction and discharge lines
Assemble suction and discharge lines and adequately supports.
Access and evaluate extent of modification work to be perform on suction and discharge lines
Tack weld suction and discharge pipes
Remove suction pipe and weld fully
Radiograph all welds.
Dye penetrant and test all welds
Hydrotest suction and discharge pipes and lines.
Remove blind flange on suction line
Reinstall suction line and fix the pump on temporary supports.
Monitor coupling alignment
Remove blind flange on discharge lines.
Reinstall discharge line and fix the pump on temporary supports.
Rerun the coupling alignment,
Finalized pipe supports.
Make up the drain lines offsets on both suction and discharge lines.
Recheck coupling alignment and reconnect auxiliary pipe works.
Confirm pump and gearbox alignment.
Conduct pre-commissioning inspection
Commission pump and hand over to production department.