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.