Swing Check Valve is similar to a butterfly valve, as a disc inside in which the closure element is a hinged clapper that swings or rotates about a supporting shaft.
Related Definitions in the Project: The Piping and Pipeline Engineering
Swing Check Valve
ThePD (The Project Definition)
ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.