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20″ Dia. Double Gimbal Expansion Joint Refurbished for an Oil Refinery
January 18, 2015

20" Dia. Double Gimbal Expansion Joint Refurbished for an Oil Refinery
U.S. Bellows refurbished this double gimbal expansion joint for an oil refinery in Baytown, Texas. The bellows were replaced with Inconel 625 and the duct, elbow, cover, and liner are carbon steel. This unit has a diameter of 20″ and an overall length of 108″. The expansion joint was designed for 4″ lateral movement at 450°F and 180 psig. Prior to shipment, the unit was 100% dye penetrant tested, PMI examined, and hydrotested.

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32″ Dia. Externally Pressurized Expansion Joint Designed for an Oil Refinery
January 3, 2015

32" Dia. Externally Pressurized Expansion Joint Designed for an Oil Refinery

US Bellows custom-designed this single externally pressurized expansion joint for an oil refinery in Saudi Arabia. The bellows are fabricated completely from 316 stainless steel. The expansion joint is 32″ in diameter and 61-1/4″ in length. It is designed for 8″ axial movement and 150 psig at 176°F, with a spring rate of 1096 lb./in. The unit had the stainless steel alloy material PMI examined. It was also dyed penetrant examined and hydro tested prior to shipment.

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