Cast steel flanged ball valves are similar to gate valves, but their closure mechanism uses a sphere that rotates around the centerline of the valve body to open or close the flow. These valves are primarily used to cut off, distribute, and change the flow direction of the medium in pipelines. As a newer valve design, cast steel flanged ball valves have become widely used in industries such as petroleum refining, natural gas extraction, coal and ore processing, and pipeline transportation systems. They play a crucial role in cutting off or connecting the medium flow, ensuring that it reaches specified locations as part of a scheduled system operation, making them vital in both industrial production and everyday life.