An API 6D Floating Ball Valve is a valve designed and manufactured in accordance with the American Petroleum Institute's specification API 6D, which pertains to pipeline and pipeline valves within the petroleum and natural gas industries. These valves adhere to requirements for design, manufacture, assembly, documentation, and testing. Floating Ball Valves, as specified by API 6D, feature a movable spherical ball at their core and operate with a quarter-turn motion. They are utilized for controlling fluid flow in pipelines, offering bidirectional flow control and providing a tight seal with the valve seats.