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.

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“Finger Joint” for Howard Franklin Bridge

The picture above shows a 20 foot section of a “Finger Joint” expansion assembly produced by PT&P for the Howard Franklin Bridge from Tampa to St. Petersburg in Florida.

This section is assembled and ready for shipment. Note the galvanized finish on everything except the temporary shipping bars. Each assembly includes four sections having a total weight of 11,227 lb. The fingers on this bridge are tapered to minimize tire damage to vehicles.

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