Sway struts are used to restrain movement of piping in one direction while providing for movement due to thermal expansion or contraction in another direction. These sway struts are made of ASTM A387 GR22 weighing at 1,485 lbs each. They are 6″ in diameter and 8’2″ long and are used for main steam valve supports with specifically designed spacers, pins, and retainers capable of restraining movement up to 90,000 lbs at high temperatures exceeding 750F. The turnaround time for this was 6 weeks.
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