The Pipe Support Blog

60" diameter Flue Gas Duct Vessel

Posted by Sylvia Ibarra on Nov 21, 2003
60" diameter Flue Gas Duct

60" diameter Flue Gas Duct Vessel


Sweco Fab, Inc. designed and manufactured a Flue Gas Duct, weighing over 66,000 lbs. and 18'-5 in length, for an oil refinery in Detroit, Michigan. The duct is designed to transport hot gases from the regenerator to the flue gas cooler. The walls are 1/2 thick with a high-density vibracast refractory lining. The rest of the unit was fabricated out of carbon steel SA-516-70 and is designed for a maximum pressure of 51 PSIG and maximum temperature of 1450°F.

Leak examinations where performed on the unit after fabrication, which included a10 percent x-ray test, a100 percent dye-pen test and a hydrotest at 77 PSIG.

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Tags: Duct, ASME/Miscellaneous Fabrication

Sludge Tank Vent Ducts

Posted by Ra Bass on Aug 16, 2002
Sludge Tank Vent Ducts

Sludge Tank Vent Ducts

Sweco Fab, Inc. recently designed and manufactured sludge tank vent ducts for a development project in Chad, Africa.

Due to the thin wall and height of the cylinder shell it was required to add a stiffing ring between the cylinder shell and flange. Each duct was 12 ¼" I.D. x 104 7/8" high and weighed approximately 96 pounds. They were painted inside and out per System 6E grey color.

Tags: Tank, Duct, ASME/Miscellaneous Fabrication