U.S. Bellows designed this tied universal elbow expansion joint for a chemical plant in Arkansas. The bellows, pipe, and liner were made from 304 stainless steel and the tie rods and cover from carbon steel. The expansion joint is 30″ in diameter and 134″ center line to center line of the elbow. It is designed for an operating temperature of 450°F at 200 psig and 2″ of axial lateral. All butt welds were 100% x-rayed and the remaining welds were dye penetrant examined. The complete unit was hydrotested prior to shipment.
January 18, 2016