Filterarrangement

This invention relates to a cleanable filter system comprising a first filter (2) for removing particles from a fluid flow having an inlet and a first outlet for filtered fluid, and a flow handling unit(l), e.g. pump, coupled to the outlet for filtered fluid flow, the flow handling unit having an outlet coupled to a downstream pipe, the filter also having a second outlet for unfiltered fluid flow also being coupled to said downstream pipe system (4), said first and second outlets having corresponding valves (5, 7) for controlling the flow, a second filter (8) having an inlet for a fluid flow and a first outlet for filtered fluids coupled to said flow handling unit and a second outlet for unfiltered fluids coupled to said downstream pipe (4), the outlets of said second filter (8) also having corresponding valves ( 5,9) for controlling the flow, and a control unit for controlling said outlet valves so as to selectively providing filtered fluid from at least one of said filtered outlets of said filters to the flow handling unit.