Design Quality Improvement – Bulletin 02 4/29/19 Prepared by – Todd Sisti, PE
Design of Pipe Expansion Loops
What is the practical range of axial pipe line growth that a designer should plan for in the design of an expansion loop?
In Case 1 below the expansion loop is absorbing up to 20” (10” per side) of pipe line growth without a resulting pipe stress problem.
In Case 2 multiple expansion loops are designed which absorb only 1” to 2” of axial line growth.