ประเภทเรือ Stcher Catcher ที่มี ASME ได้รับการอนุมัติ

Slug catchers are used to "catch" excess liquid, or slugs, in gas or oil stream flowing through pipelines and remove it. As gas or oil travels through a pipeline, liquid falls out of the stream and gathers at outlets and joins, slowing down the flow and causing the pressure within the pipeline to drop. Slug catchers are usually placed downstream of pigging equipment, in areas of the pipeline where liquids gather. The slug catcher operates by forcing the gas stream through an inlet diverter, causing an initial separation of gas and liquid, with the liquid flowing down and the gas rising. As the stream enters the slug catcher's vessel, it slows further and additional droplets of liquid are released from the stream. High efficiency mist extractors capture smaller droplets and remove them from the gas stream. Dump valves are used to handle large deposits of liquids in the stream.