The filter press is filled in the following order:
membrane filter plate and recessed filter plate.
Secondary pressurization (squeezing) with water inside the membrane reduces the water content of the cake.

The filter press is filled only with a recessed filter plate. No secondary pressurization (squeezing

A filter plate equipped with a membrane =diaphragm) for secondary pressure on the filter plate

A membrane plate that can be separated from the plate so that the membrane can be replaced

An integrated membrane plate that the membrane and plate are heat welded to form one piece. Each material can be manufactured differently. Contamination and fatigue destruction of joints can be minimized as there are no joint connections.