Figure 1. Shipping bars of the 14" diameter tied universal expansion joints being painted

U.S. Bellows, Inc., the expansion joint division of Piping Technology & Products, Inc., designed and fabricated 14" diameter, tied universal expansion joints for a steam application at a power plant in Illinois.

The expansion joints were designed at 350 psig, 780° F and constructed from Inco 625 bellows, A105 300# RFSO flanges, A106 GR. B spool, and SA193 B7 tie rods. The expansion joints were hydro tested at 525 psig.