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The filter press is a solid liquid separation device using the principle of pressure feeding. It is highly efficient, compact, dewatering device for separating solids from liquid slurries in the form of compressed cake. It has wide range of applications by several industries like Pharma, bulk drugs, distilleries, beverages & other industries.

The unfiltered liquid is fed into the filter under positive pressure, where liquid travels in downwards direction and finds its way through opening on sides of the Filter Plates. As the liquid pressure increases, the Filter media holds the foreign particles and allows only clear filtrate to pass through the central channel formed by interlocking pressure cups to the outlet. Filtration is continued until the cake holding capacity of the unit is reached or until the filtrate rate becomes too slow owing to cake resistance.

Equal Thickness of the Cake on Each Plate Ensures:

  • Minimum amount of solvent required to wash the active material from the cake.
  • Reduce the cost of expensive solvents.
  • Cake can be thoroughly dried either by compressed air or by inert gas.
  • Uniform filter-aid bed can be formed.

Closed System Ensures:

  • Filtration of toxic, hazardous, explosive materials/unit can be sterilized.

Plate Pack Arrangement Ensures:

  • Any type of filtering media singularly or in combination can be used to achieve required micro efficiency.
  • Easy removal and cleaning of the cartridge assembly.

Additional Provision of External Tightening Arrangement Ensures:

  • Tightening of the cartridge assembly during filtration.


Filtration area and cake holding capacity have been computed for standard models 8″, 14″, 18″ and 33″ Ø. 
The values of “Flow-Rates” mentioned in technical specifications have been estimated for the following operating parameters:

  1. Fluid: Water
  2. Insoluble: Carbon
  3. Filter media: Non-woven polypropylene cloth of 418 grade.
  4. Carbon loading: 5 kg/m2 filtration area.

The actual flow-rate will differ from the estimated value depending on the operating variables.


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