June 7, 2006
U.S. Bellows, Inc. and PT&P combined to furnish a fabric expansion joint, duct work, a spring support cradle and snubbers. US Bellows furnished a fabric expansion joint with acid resisting fabric and also a duct work measuring 34″ long and 60″ in diameter which was fabricated from ASTM A 516GR 70 carbon steel. PT&P furnished spring supports, carbon steel cradle supports, and snubbers. The expansion joint was completed within 6 weeks in time for a plant shutdown. A computerized pipe stress analysis, utilizing the Caesar II stress program, was performed to obtain the forces and moments imposed on the equipment nozzles and weights to be carried by the spring supports.
