You are going to need to sweat off the old valve and sweat on the new one, although you can get ball valves with compression fittings. Make sure you shut off the main water valve to replace the ...

2.2 Numerical model The main gate valve in marine nuclear power plant is generally a fully sealed electric gate valve, whose main components are valve body, valve deck and resilient wedge-shaped valve ...

Virtual sensor technology, which uses simulation models/algorithms to calculate a value to represent an unmeasured variable or replace a directly measured reading, has attracted many studies in the ...