An assembly comprising a filter plate for filter press and at least one attachment part, wherein the filter plate has a filter chamber boundary surface, by means of which a filter chamber to be formed in the filter press can be bounded. At least one channel for a fluidic connection to the filter chamber boundary surface is formed in the filter plate, and the attachment part is detachably fastened to the filter plate at the channel by means of at least one detachable ball-type snap-in connection. The ball-type snap-in connection comprises at least one ball pin and at least one coupling. An assembly comprising such a filter plate for a filter press and at least one attachment part, in which the attachment part is detachably fastened to the filter plate by means of at least one ball-type snap-in connection and has an opening which is arranged in the channel.

A filter grid including a plate-like grid body having a first side and an opposing second side. The grid body further includes a plurality of apertures extending between the first side and the second side, thereby providing fluid communication between the first side and the second side through the grid body. Each of the plurality of apertures define an aperture area and an aperture circumference, such that a ratio of the aperture area in millimetres squared to the aperture circumference in millimetres is above 1.3, and the plurality of apertures occupy at least 35% of a total area of the first side. A filtrate vat assembly, a filter plate assembly and filter press are designed using the filter grid.

A filter diaphragm for a horizontal plate and frame-type filter, such as a tower press, including a sheet like body and at least on a filter plate-facing side thereof, a continuous seal bead. The seal bead includes an inner seal lip on a lateral inside of the seal bead and an outer seal lip surrounding the inner seal lip on a lateral outside of the seal bead. The outer seal lip is elevated from the inner seal lip in a vertical direction perpendicular to a general plane defined by the diaphragm.

A filter plate subframe for a filter plate frame assembly having a filter plate frame and a filter plate subframe slidably receivable therein. The subframe comprises separate periphery segments attached to each other so as to form a continuous, generally rectangular periphery region with flank sides and end sides. The flank sides have a linear density lower than that of the end sides, and the end sides have a bending stiffness higher than that of the end flank, while either or both of the first end side and the second end side are provided with a reinforcement bar for increasing the bending stiffness said end sides. A supporting surface is provided on a first planar side of periphery segments forming the flank sides the supporting surface.

A filter plate frame assembly with a filter plate frame and a subframe housed within the frame, such that the subframe can be removed from the frame without removing the frame from the filter press. In this way, consumable components can be provided in connection with the subframe, which can be easily removed from the filter press. This, in turn, makes replacement of worn components faster, as the whole frame does not need to be removed from the filter press. An associated horizontal filter press and a method of replacing worn components of such a filter press is also provided.

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

An outlet piece assembly for a horizontal plate and frame-type filter, such as tower press. The disclosure is based on the idea of providing the outlet piece assembly as having a base removably attachable to a filter press (e.g., to the filter plate or plate frame thereof), and a lid removably fixed to the base, such that an internal conduit of the outlet piece assembly running between a vat end and a discharge end is formed between the base and the lid. This enables a part of an associated filtrate vat component, such as the vat liner, to be received between the base and the lid, thereby ensuring secure sealing between these components.

A filter assembly that includes a flange assembly and a neck assembly. The flange assembly has a first flange component and a second flange component, wherein at least a portion of the first flange component and the second flange component are configured to seat within a feed hole. The neck assembly has a first neck component configured to be coupled to a first filter cloth and mountable on a first side of the filter plate and a second neck component configured to be coupled to a second filter cloth and mountable on a second opposed side of the filter plate. Further, at least a portion of the first neck component is configured to be coupled to the first flange component in the feed hole and at least a portion of the second neck component is configured to be coupled to the second neck component in the feed hole.

A filter plate assembly for a filter press, comprising a filter frame and a filter plate supported on the filter frame. A diaphragm is provided between the filter frame and the filter plate, the diaphragm further comprising, on a side facing the filter frame, a seal bead for sealing the diaphragm against the filter plate. The seal bead comprises a first seal lip and a second seal lip, the former being elevated from the later. The filter frame has a limited vertical travel with respect to the filter plate, such that, in a lowermost position, only the first seal lip is in contact with the filter plate, and in an uppermost position, both the first seal lip and the second seal lip are in contact with the filter plate.

A filtration cassette including a multilaminate array of sheets including filter sheets alternating with permeate sheet members and retentate sheet members, and a cross-flow filter device comprising a multiplicity of stacked filtration cassettes of such type. The improvements associated with the filtration cassettes described herein include, but are not limited to, at least one of: reinforced inlet(s) providing for longevity and improved cleanability of the cassettes; spacer permeate screens to limit throughput restriction; stainless steel or otherwise stiffened permeate sheets to prevent movement and increase flux; and stainless steel permeate sheets that can be used with ultrasonic transmission to minimize fouling of the filter sheets and extend cleaning cycles. Advantageously, the filtration cassettes are more resistant to higher temperatures than the filtration cassettes of the prior art.