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2019-1-16 · (16) "Nuclear boiler" means a nuclear power plant system, including its pressure vessels, piping systems, pumps, valves, and storage tanks, that produces and controls an output of thermal energy from nuclear fuel and the associated systems essential to the function of the power system.

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2019-6-9 · Lower-pressure systems dictate the use of a thicker grade of filler to make the gasket softer, whereas higher-pressure vessels require gaskets with a thinner gauge of filler. This not only increases the number of metal plies in the gasket, but also makes it denser and more capable of withstanding higher compressive loads.

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