AUTOMATIC SELF-CLEANING STRAINER

摘要

An automatic self-cleaning strainer having multiple stages of straining within a single housing. Straining media are spaced in the housing along the liquid flow stream. The straining media are of progressively finer mesh and the free flow area of each stage of media is preferably greater than the flow area through the inlet of the housing. Each stage of straining media is provided with a backwash shoe engaging the upstream surfaces of the media. Each backwash shoe is coupled to a common manifold shaft which receives the backwash liquid and discharges it outside of the housing.