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Reduction of Maintenance Costs and Improved MTBR of Boiler Steam Drum and Superheat Safety Valves

The boilers at ArcelorMittal Burns Harbor’s power station have high-pressure drum and superheat valves which are welded in line. This eliminates any flange issues that could arise and leaves the valves suitable for field repairs, when required. The valves are all 1700 series Maxi-flow safety valves. They range in set point from 1025 to 1050 psi on the drums and 950 psi on the superheats, and meet the ASME code requirements for set point and capacity for the plant boilers. Lake Michigan water is processed by a reverse osmosis system to remove impurities prior to reaching the boilers.
Product:
2019 AISTech Conference Proceedings
PR-377-286
Tim Shelton, Charles Kuntz, Larry Frey
May 01, 2019
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