Valtech Engineering completes online FCCU expansion joint repair
Valtech Engineering received an emergency phone call from a major gulf coast refiner. Their FCCU had an expansion joint failure in their flue gas line.
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Two 34 inch (864mm) bolted root ring expansion joints were installed in the field on a shell and tube heat exchanger at a Georgia power plant. The bellows were SB443-625 GR 1 and all remaining components were SA516-70N. The root rings were necessary to take the 550 psig (37.9 barg) internal pressure at 500 F (260 C). Since this was a repair to an ASME U stamped vessel, the parts were built to ASME Sec VIII, Div 1 then U stamped and the completed repair received an R stamp with onsite approval from the National Board Inspection Code (NBIC). Both joints passed a hydro test at 715 psig (49.3 barg) after install.
Valtech Engineering received an emergency phone call from a major gulf coast refiner. Their FCCU had an expansion joint failure in their flue gas line.
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Valtech Engineering worked together with a major European styrene monomer plant to refurbish a 42 inch diameter, three hinge expansion joint piping network.
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Valtech Engineering ships 42.0" FCC Expansion Joint. Hot wall UOP Chrome-Molly spent catalyst expansion joint.
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