| 摘要 |
A filter for filtering of a fluid, including a housing (1) having an inlet port (10) for the fluid to be filtered, an outlet port (12) for filtered fluid and an outlet port (11) for reject. In a body (14) arranged in the housing to be rotatable between at least two positions of rotation, there are at least two intercommunicating flow channels of which at least a first (16a, 16b) is provided with a filtering means (19a) through which filtering takes place in a first rotational position, wherein one end (16a) of the first flow channel communicates with the inlet port (10), and through which backwash takes place in the second rotational position, wherein said end (16a) of the first flow channel communicates with the outlet port (11) for reject. The first flow channel (16a, 16b) is provided with a filtering means (19a, 19b) at each end. A second (17) of the at least two flow channels connects to the first (17) flow channel between the filtering means (19a, 19b) and is in constant connection with the outlet port (12) for filtered fluid. The outlet port (11) for reject is provided with a shutting means (23) openable for backwashing. |
