DIRECT ANSWERColumn fabrication must control shell roundness and straightness, internals datums, nozzle orientation, section interfaces, heat-treatment sequence, transport supports and site reassembly.
Column quality controls
- Shell courses, alignment and dimensional survey
- Internals supports, datums and trial fit
- Nozzles, platforms and section joints
- Heat treatment, transport and field completion
Relevant manufacturing capability
- Large shell forming, fit-up and dimensional control
- Sectional fabrication and heavy-equipment handling review
- Inspection, documentation, lifting and transport coordination
Key notes
- A sound shell weld does not by itself ensure internals fit or field alignment.