These single expansion joints are 20″ in overall length and range in diameter from 3″ to 56″. They are composed of 321 stainless steel bellows, 316L flanges and angles, and include carbon steel covers. The expansion joints were designed for 194°F at 22 PSIG and were dye penetrant examined and soap and air tested prior to shipping to Peru.
Tie rods are necessary in some applications to continuously restrain the full pressure thrust during normal operation while permitting only lateral deflection. Here is an example of what can happen when tie rods are not specified or the piping has not been anchored.
This refractory lined expansion joint is composed of 321 stainless steel bellows and A588-A Corten angle flanges. It is lined with a 4″ thick refractory lining and measures 7′-2″ x 4′-6″ x 134″ F-F. The expansion joint was dye penetrant tested and will be utilized in flue gas service associated with a clean fuels project at an oil refinery.