Pipe Thermal Expansion Calculator

Calculate thermal expansion of hydronic piping and required expansion loop or joint sizing.

Total length of pipe run.
ft
Temperature at time of installation.
°F
Maximum system operating temperature.
°F
Enter 1 for steel, 2 for copper.

Results

Linear Expansion-inches
Expansion Loop Leg Length-ft
Thermal Stress (if restrained)-psi
References: ASHRAE Handbook - HVAC Systems and Equipment, Chapter 47. Pipe expansion and flexibility analysis per ASME B31.1.