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Duct — The Pipe Supports Blog
Posts Tagged ‘Duct’

90" O.D. Duct Work for an Ammonia Plant

April 25th, 2008 No comments

90" O.D. Duct Work for an Ammonia Plant

90" O.D. Duct Work for an Ammonia Plant

90" O.D. Duct Work for an Ammonia Plant

90" O.D. Duct Work for an Ammonia Plant

The duct work has an outside diameter of 90 inches and is 38 feet long. The duct assembly is fabricated entirely from ASTM A516-70 carbon steel. The assembly has two support bases and stiffening rings that provide strength and rigidity for the duct work. The assembly is a section of air supply duct in an Ammonia Plant.

Do you require duct work for your piping system? Get pricing today!
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60" diameter Flue Gas Duct

November 21st, 2003 No comments

60" diameter Flue Gas Duct

60" diameter Flue Gas Duct

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.

Do you require a flue gas duct in your current or future job? Get pricing today!
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Sludge Tank Vent Ducts

August 16th, 2002 No comments
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.

Learn more about Sweco Fab, Inc. and it’s products by visiting our webinar archives today!



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Complete Duct System for Food Processing Plant

August 5th, 1994 No comments
Complete Duct System for Food Processing Plant

Complete Duct System for Food Processing Plant

Sweco Fab, Inc. designed and fabricated a complete duct system for a major engineering and construction firm in Houston.The project is a carbon dioxide facility for a food processing plant being constructed in Massachusetts.

Two unique features of the 96” ID fabrication are the very light materials with close tolerances and the painting system for food grade product.

Do you have a need for a duct system? Get pricing on a duct system today!

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Flue Gas Duct Damper

November 19th, 1993 No comments
Flue Gas Duct Damper

Flue Gas Duct Damper

The picture above shows a flue gas duct damper fabricated using Inconel for certain components by the Sweco Fab division of Piping Technology & Products, Inc. Two of these dampers were shipped to Trinidad for installation above the furnaces of an ammonia plant. They have a special refractory lining to withstand the high temperatures of the flue gases. The picture at the left show the linkage of the damper to the motor-driven control system. Each unit weighs approximately 2300 lb. and the openings are approximately 12 feet by 6 feet.

Need a duct damper for a future project? Let us price one for you today.

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