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Friday, November 21, 2008
Company Information Capabilities Overview Service Information Illustrations Warranty
1] U-Tube Design 2] Changing Tube Materials 3] Sub Cooling Zone End Plate
4] Stakes Installed 5] Steam Inlet For Desuperheating Zone 6] Welded Shield
7] Crack Between Zone Shroud And Tubesheet 8] Eddy Current Testing 9] Pass Partition Plate
10] Explosive Welded Plugging 11] Overlay Machining 12] Tubesheet Cavity

Feedwater Heater shop retube in progress
Tubesheet Cavity

(12) A. Condemned feedwater heater tubesheet rebuilt as good as new for 20% of the cost of a new tubesheet.

B. Major cavity caused by the failure of mechanical and fusion welded plugs.

C. Cavity is welded in preperation for drilling to restore use of all tube holes.

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