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81″ Long Rectangular Fabric Expansion Joint for an Offshore Oil Extraction and Natural Gas Project

February 21, 2012

A total of three rectangular fabric expansion joints and six round fabric expansion joints were custom designed for an offshore oil extraction and natural gas project. The rectangular joints are 56″ x 81″ I.D. x 25″ O.A.L. and the round joints are 105″ dia. x 24″ O.A.L. 309 stainless steel was used for the duct, 310 for the liners, 316 for the covers, 321 for the studs, 309 for the flanges. The fabric belt was a three layer belt with an inner layer of glass cloth, a layer of Kaowool and an outside layer of reinforced PTFE. The expansion joints were designed for 1 psig at a temperature of 1100°F. The rectangular joints were designed for 2″ axial compression, a 1″ extension, and a 1″ lateral offset. The round joints were designed for 4″ axial compression, a 1″ extension, and a 0.5″ lateral offset. All welds were 100% dye-penetrant examined prior to shipment.

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84″ Diameter Duct Work and Fabric Expansion Joint Assemblies

February 6, 2012

The two assemblies shown, a mitered elbow duct work and fabric expansion joint and duct work assembly, are designed for a sulfuric acid plant. Both assemblies are fabricated from 1/4″ thick 304L stainless steel. They are designed for a 15″ water column with a temperature of 180°F, axial compression of 3/4″, and lateral movement of 3/4″. A dye penetrant examination is performed on all welds prior to shipment.

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