Apparatus for filtering and separating flowing media

Abstract From the Canadian patent

A modular unit as a filtering apparatus for a membrane separation process, especially for treating water by reverse osmosis. The apparatus comprises a pipe which is open at both ends and in which can be inserted a stack of membranes which is adapted to the inner diameter of the pipe. The stack of filter elements, which comprises guide plates carrier plates, and, membranes, is clamped together by a central clamping both which passes through the filter element stack between two fixed pressure plates. Located at the peripheries of the pressure plates are inclined circumferential grooves in which are disposed sealing rings which, when excess pressure exists in the interior of the housing, are …