DIRECT ANSWERDesign temperature must cover normal and credible transient, start-up, shutdown, upset, depressurization, cleaning and environmental cases, including minimum metal temperature where relevant.
Temperature design inputs
- Normal and maximum process temperatures
- Minimum temperature and depressurization cases
- Start-up, shutdown, cleaning and regeneration
- Ambient/fire/utility interactions and design authority
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 single normal operating temperature is not a complete material basis.