| 摘要 |
A filter device with a filter container (1) closed on all sides, into the bottom of which a cartridge-shaped filter insert (2) has been inserted, under which a filtrate catch reservoir (6) is disposed. An air supply tube (40) is inserted into the filter container (1), which terminates on the inside in an air compensation hole (3) at an adjustable height (A) above the inlet of the filter insert (2), so that the corresponding hydrostatic pressure of the liquid (F) determines the flow-through speed of the filtrate. The air supply tube (40) terminates at the bottom above the filtrate outlet of the filter insert (2), so that a filtrate build-up terminates on the corresponding level (MN) and the filter insert (2) is closed airtight in this way.
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