Installation RO (reverse osmosis), which can be coupled at least with a dialysis machine (44), to supply a highly clean permeate, with an inlet of raw water (1), which supplies raw water to through a valve (4) to a buffer vessel (5) with a control fill level, from which a duct (9) leads through a pump (7) to a filter module (10), which space primary (11) is separated by a semipermeable membrane (49) of a secondary space (12) which is connected to a distribution system for the permeate, which has a supply duct permeate (23) with at least one connection (25), which can be coupled said at least a dialysis apparatus (44), and a return duct permeate (24) to the secondary space (12), the distribution system permeate so least one device (32, 28) for cleaning and / or disinfection, and the secondary space (12), the cleaning device and / or disinfection (32 28) and a circulation pump (27) are arranged in a circulation circuit also leading from the primary space (11) of the filter module (10) a conduit concentrate outlet (18) to the buffer container (5) , characterized in that the secondary space (12) is formed by a permeate collecting (48) perforated tube arranged inside a membrane bags arranged with a spiral shape, which is connected via a connection at both ends to circulation circuit, and that in the duct concentrate outlet (18) are connected a cleaning chamber (38) and then, a centrifugal chamber (40) with an outlet valve (20) leading to a drain (22 ).Instalación OI (de osmosis inversa), que se puede acoplar por lo menos con un aparato de diálisis (44), para suministrarle un permeato altamente limpio, con un conducto de entrada de agua sin depurar (1), que suministra agua sin depurar a través de una válvula (4) a un recipiente amortiguador (5) con una regulación de nivel de llenado, desde el cual un conducto (9) conduce a través de una bomba (7) hacia un módulo de filtro (10), cuyo espacio primario (11) está separado por una membrana (49) semipermeable de un espacio secu
