Patent attributes
A filtration system comprising a plurality of filters (14, 16, 18, 20). Each filter (14, 16, 18, 20) defines a respective filter flowpath extending adjacent a respective filtration medium (24) for tangential filtration by the filtration medium (24) of fluid passing through the filter flowpath. The system also comprises a manifold (32) connected to each filter (14, 16, 18, 20), the system being selectively operable in a first state in which the manifold (32) and the filter flowpaths form part of a first continuous flowpath (92, 36, 38, 40, 42, 44, 101, 56, 48, 50, 52, 54, 58, 88) around which fluid circulates passing in parallel through the filter flowpaths and a second state in which fluid circulates around a second continuous flowpath (94, 82, 86, 98, 101, 48, 58) including the filter flowpath of at least one (14) but not all of the filters, the second continuous flowpath having a lower volume than the first continuous flowpath and fluid passing into the second continuous flowpath from the manifold (32) responsive to tangential filtration in the second state.
