Rain filtering unit, e.g. for installation in drainage pipes

摘要

An arrangement for filtering rain water consists of filter elements with filter sieves in a housing. The filter inserts are interchangeable and can be filled in drainage pipes. The insert has sieve form members of varying mesh width on the side receiving the rain flow, and a closure cap on the other side. The filter insert can be rotated through 180 deg to stop the flow or prevent unwanted filling during the winter. The sepg. well insert/angled pipe insert has an automatic supply and overflow control, and the filter can be back flushed when the container is full.