A strainer is a device which provides a means of mechanically removing solids from a flowing fluid by utilizing a perforated or wire mesh straining element. Strainers are an in expensive means of protecting downstream mechanical equipment such as condensers , heat exchangers, pumps, compressors, meters, spray nozzles turbines, steam traps, etc.. from possible damage due to debris such as rust, pipe scale, sediment, and/or other solids.