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Custom Designed Externally Pressurized Expansion Joints for a Flare Header Application at a Mississippi Refinery (PT&P Ref#155088) 02/19/2018
Custom Designed Externally Pressurized Expansion Joints for a Flare Header Application at a Mississippi Refinery
Type: Externally Pressurized Expansion Joint
Size: 133 11/16" and 120.5" Long | Both Have 42" Pipe Dia.
Material: Inconel 625 | Carbon Steel
Design: 450°F at 108 psig & 31" and 25" Axial Compression
Testing: Hydro-tested at 167, PMI, 100% X-Ray, and Dye-Penetrant

U.S. Bellows custom designed these externally pressurized expansion joints for a flare header application at a refinery in Mississippi. One unit measures 133 11/16" long and the other measures 120.5" long and both have a 42" pipe diameter. The bellows were fabricated from Inconel 625 with carbon steel pipe per A671-CC-60 CL.22, and 2-coat paint system. They are designed for an operating pressure of 108 psig at 450°F with the 31" and 25" of axial compression. All alloy material was PMI inspected. The units were hydrotested at 167 psig, 100% dye-penetrant tested, and the bellows and pipe weld seams were 100% X-ray tested prior to shipment.

 

 

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