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78″ Fabric Expansion Joint and Duct Work Assembly with a 90° Elbow for a Sulphuric Acid Plant

April 11, 2011

78" Fabric Expansion Joint and Duct Work Assembly with 90° Elbow for a Sulphuric Acid Plant

U.S. Bellows designed and fabricated a 78″ fabric expansion joint and duct work assembly with a 90° elbow for a sulphuric acid plant in Louisiana. A stress analysis was performed to determine thermal movements and spring supports, loads and travel.

109055b2

The ducts are fabricated from carbon steel and are 30″ long. The expansion joint is designed for 750°F at 5 PSIG with 2.5″ lateral deflection (cold preset) and 2″ axial compression. Cradle supports and a “big ton” spring support were also fabricated for this project.

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