Ball Valves used for on/off control and some flow regulation.
They feature a spherical ball with a hole through the center; rotated 90 degrees to open or close the valve.
They are used in subsea manifolds, pipeline systems, and control modules.
These valves are commonly constructed from stainless steel, duplex stainless steel, or Inconel.
They have a quick operation, excellent sealing capability, and low pressure drop, but they are not ideal for throttling applications.