Pressure Sand Filter & Activated Carbon Filter

Crystal Drops offers high quality Pressure Sand Filters by mixing best quality coarse and fine media in right proportions to produce a filter bed with Pore dimensions to support retaining of both large and small suspended particles. These filters are designed to achieve higher flow rates per hour to produce a filtrate with less than 5 ppm (Parts per Million) for inlet water containing up to 25 ppm suspended solids.


The PSF/ACF by Crystal Drops is an obvious choice for all applications where a conventional sand filter is used.

It is extensively used in
  • Water & Waste Water treatment.
  • High quality Cation polystyrene resins provide stability and longer life.
  • Portable water treatment.
  • Filtration of clarified water.

These Filters are available with Mild Steel Rubber lined and Mild Steel Epoxy Painted options and shall be selected based on inlet water characteristics.

  • Higher flow rates with lesser space and cost.
  • Low maintenance and operating cost.
  • Efficient backwash system.
  • Use of raw water for backwash.
Technical Specifications

Vertical cylindrical vessel made of Carbon steel with dish ends, with external protective coat of red oxide paint and internally with anti-corrosive block bituminous paint, including the frontal pipework, valves, filter media, Pressure gauges.

PSF/ACF are available in variants from 200 to 3000 mm diameters.

Carbon Filters are available for removal of Colour, odour and de-chlorination of water.

Note: Suitable coagulant should be used for effective filtration.