|Type:||Externally Pressurized Expansion Joint|
|Size:||133 11/16″ and 120.5″ Long | Both Have 42″ Pipe Dia.|
|Design:||Inconel 625 | Carbon Steel|
|Material:||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 hydro tested at 167 psig, 100% dye-penetrant tested, and the bellows and pipe weld seams were 100% X-ray tested prior to shipment.