These single expansion joints are custom designed for an internal reactor in a propylene process unit. They are fabricated with Incoloy 800H bellows and A-240 type 304H stainless steel weld ends. The expansion joints range in diameter from 59-7/15" to 78-8/8" and are 41-5/16" long. They were designed for a lateral movement of 0.25", axial movement of 2.64" and 15 psig at 1231°F. PMI, x-ray and dye penetration tests were performed prior to shipment.
