A 3-piece ball valve is a valve that swings open on both ends in order to provide easy access to the valve's internals for maintenance and repair purposes.
What is a flanged ball valve?
Flanged Ball Valves are 1-piece or 2-piece ball valves that provides effective control of oil and gas operations. Its defining trait is the flanged ends that bolt to oil and gas pipelines. Kimray's Flanged Ball Valve is a conventional-design flanged-end floating ball valve.