Strainers are installed in pipelines upstream of meters, pumps, valves, and other flow stream equipment for protection against intrusion of pipe scale, welding splatter, and other foreign material. The use of a properly sized strainer, together with a basket of suitable mesh, reduces maintenance and chances of system failure due to foreign material in the flowing stream. Brodie Vertical In-Line Strainers are available in sizes 3” – 6” for maximum working pressures up to 285 psi (1,965 kPa). When it is known that large amounts of or iron oxide are present in a flowing stream, a large strainer should be used. Resins, gums or varnishes, will also cause the strainer basket to clog prematurely. Larger foreign matter such as pebbles, welding beads, etc., should be removed at frequent intervals to prevent abrasive action from damaging the basket screen.