Fluor Piping Design Layout Training Lesson 1 Pipe Stresspdf Better < Newest × WALKTHROUGH >
Your pipe stress engineer will output a PDF marking three failure modes. Here is how your layout directly causes or prevents each:
The most common error is designing a straight pipe run connecting a pump to a tank. Both nozzles are rigid. When the pipe heats up, it has nowhere to go but push against the equipment.
Before running Caesar II or AutoPIPE, do this visually: Your pipe stress engineer will output a PDF
Rule of Thumb – The "L" Method:
For a straight run between anchors, if L > 2 * ΔT * D, you likely need flexibility.
But easier: Use the guided cantilever method:
Minimum offset length (L) = √( (3 * E * D * ΔL) / (S_a) )
Where ΔL = thermal growth = α * L_pipe * ΔT. Where ΔL = thermal growth = α * L_pipe * ΔT
Simpler: Memorize these "Fluor layout guidelines"
| Pipe Size | ΔT (°C) | Straight run limit (m) before needing loop | | :--- | :--- | :--- | | 2" (DN50) | 150 | 30 m | | 6" (DN150) | 150 | 18 m | | 12" (DN300) | 150 | 12 m | | 24" (DN600) | 150 | 9 m | Use only when space for loops is unavailable
If your run exceeds this → add a loop or change direction.
Use only when space for loops is unavailable. Layout considerations: