DIRECT ANSWERTube-bundle procurement must fix thermal duty and the mechanical interface: tube size, count and layout, material, tubesheet thickness and drilling, joint method, baffles, supports, pass partition, expansion allowance and extraction clearance.
Bundle interface checklist
- Tube and tubesheet material, dimensions and layout
- Tube-to-tubesheet joint and qualification
- Baffle spacing, supports and pass arrangement
- Shell fit, pull space, inspection and test
Relevant manufacturing capability
- Drawing, datasheet and equipment-list manufacturability review
- Self-manufactured and coordinated-supply scope identification
- Technical, quality, document and delivery clarification
Key notes
- A nominal exchanger diameter cannot establish replacement-bundle fit.