U.S. Bellows designed and manufactured this 24″ diameter by 140-3/16″ OAL custom elbow pressure balanced expansion joint for a chemical plant in Missouri. The pipe and weld ends are fabricated from 347 stainless steel. The liner, tie rod lugs and end plates are fabricated from 304-H stainless steel. The bellows are Incoloy 800H. This expansion joint is designed for 2.6″ axial compression and 170 psig at 1200°F. The bellows longitudinal seams were 100% x-rayed, and the entire unit was dye penetrant examined and hydro-tested at 255 psig prior to shipment.
September 1, 2014