U.S. Bellows designed this universal gimbal hinged expansion joint for a methanol and ammonia plant in Texas. This expansion joint is 48″ in diameter and 145″ OAL. The bellows were fabricated from Inconel 625 and the assembly is carbon steel. The unit is designed for an operating temperature of 752°F at 50 psig, the angular spring rate is 4,374 lb/in., with 3/4″ of axial movement within the gimbal bars. The unit was 100% x-ray, dye-penetrant, and hydro-tested prior to shipment.
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These clamshell pipe spools were fabricated by U.S. Bellows for a section of the duct for a gas turbine installation. The units were constructed from ASTM A.240 type 321 stainless steel. The flanges had a 32 RMS machined faces for bolting up the flanges without gaskets. The spools were designed to be removed in four sections so that the spool could be removed and the turbine pulled back for maintenance. They are 85.5″ in diameter and 21.5″ in overall length. The units were designed for an operating temperature ranging from -40°F to 950°F.
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