Hydro-cyclone system

A system for purifying a fibrous suspension, the system consisting of:

• multiple hydro-cyclones, arranged adjacent to one another in a row, each of the hydro-cyclones having at least one feed connection, one accepted stock connection and one reject material connection, and having at least one manifold comprising at least one supply manifold which is connected to multiple feed connections for the purpose of feeding the fibrous suspension and/or at least one accepted stock manifold which is connected to multiple accepted stock connections which serves to drain the accepted stock and/or at least one reject material manifold which is connected to multiple reject material connections which serves to discharge reject material, wherein the at least one manifold is elongated and the corresponding connections connected to the at least one manifold discharge at their longitudinal side into the at least one manifold, wherein at an end of the at least one manifold which follows a final hydro-cyclone in the row, a fluid or a suspension is guided via at least one flushing connection into or out of the at least one manifold;
• and
• an additional hydro-cyclone that is arranged at the end of the at least one manifold with the at least one flushing connection and is connected to the at least one flushing connection.