A FILTER DIAPHRAGM FOR A RECESSED PLATE -TYPE FILTER, A DIAPHRAGM FILTER PLATE, A DIAPHRAGM FILTER PLATE ASSEMBLY AND A RECESSED PLATE -TYPE FILTER

摘要

The disclosure relates to a filter diaphragm (1) for a filter plate assembly (10) of a recessed plate -type filter, such as a filter press or a tower press. The diaphragm (1) comprises a sheet-like body (2) having a flexible structure, and, at least on a side of the body (2), a plurality of distinct attachment studs (3) to be inserted into corresponding distinct attachment holes (9) of a respective filter plate (5) for attaching the diaphragm (1) to the filter plate (5). The attachment studs (3) are arranged along a sealing region (4) extending along a periphery of the filter diaphragm (1) and extend in a direction perpendicular to the diaphragm body (2). The attachment studs (3) are equipped with an opening (3a) extending through the filter diaphragm (1), between the opposing sides thereof. A diaphragm filter plate (5) and -assembly (10), and filter are also concerned.