Expansion Loop Sizing: stainless_steel
Pipe thermal expansion loop sizing — U-bend loop width, height, and offset leg dimensions by pipe material, NPS, and temperature differential. Based on Engineering ToolBox formula W=0.015*(dl_mm*OD_mm)^0.5 per ASME B31.3 Appendix D flexibility principles and Kellogg/Spielvogel methods. Covers carbon steel (NPS 2–12, dT 100–300°F), stainless steel 304/316 (NPS 2–8, dT 100–300°F), and copper (NPS 2–4, dT 50–100°F). Also includes L-bend offset leg records for carbon steel. Thermal expansion per ASME B31.3 Appendix C.
| pipe material | record id | anchor force multiplier (dimensionless) | cte in per 100ft per deltaT (in/100ft/F) | guide spacing from loop ft (ft) | loop height ft (ft) | loop width ft (ft) | notes | nps in (in) | od in (in) | od mm (mm) | offset leg ft (ft) | temp delta C (delta_C) | temp delta F (delta_F) | thermal expansion in per 100ft (in/100ft) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| stainless_steel | ss_2_dt100 | 1.3 | 0.00104 | 12 | 8.1 | 4 | NPS 2 304/316 SS; dT=100F; CTE=9.6e-6/F vs CS 7.2e-6/F; SS expands 44% more than CS | 2 | 2.375 | 60.3 | 20.2 | 55.6 | 100 | 1.04 |
| stainless_steel | ss_2_dt200 | 1.3 | 0.00104 | 17 | 11.4 | 5.7 | NPS 2 SS; dT=200F | 2 | 2.375 | 60.3 | 28.6 | 111.1 | 200 | 2.08 |
| stainless_steel | ss_2_dt300 | 1.3 | 0.00104 | 21 | 13.9 | 7 | NPS 2 SS; dT=300F | 2 | 2.375 | 60.3 | 34.9 | 166.7 | 300 | 3.12 |
This is a sample. Search the full expansion loop sizing dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE