Cartridge filters

BUPOLSA’s cartridge filters are made of glass fibre reinforced polyester (GRP) and are an essential element in water desalination treatment. Cartridge filtration consists of circulating, by means of pressure, a fluid inside a cartridge holder in which the filter cartridges are housed. The fluid passes through the filter cartridge, retaining all the selected contaminants. Cartridge filtration is the most recommended filtration technique for applications with high quality and safety requirements.

They have an optimal behaviour for filtering water with different degrees of salinity, in order to obtain a greater degree of protection in the osmosis membranes. They can also be used to filter a wide range of liquids from other industrial applications.

BUPOLSA cartridge filters can accept different types of cartridge inside:

  • Deposit with horizontal cartridge filters
  • 2-body vertical filter tank
  • 3-body vertical filter tank


All cartridge filters are custom manufactured according to the processes and indications specified by the customer. As BUPOLSA is not a process or engineering company, it does not develop all the part related to the size or dimensioning of the cartridge and does not offer any guarantee in this respect.

You can consult our technical sales department for the capacities available for each type.


Advantages of cartridge filters manufactured in PRFV:

  • High durability in corrosive environments and extreme environmental conditions.
  • Low maintenance and easy cartridge replacement.
  • Optimum behavior in front of the fluids to filter.
  • Great resistance to both low -30ºC and high -210ºC temperatures thanks to the variety of resins with which the equipment can be manufactured: orthophthalic, isophthalic, bisphenolic and vililester.
  • Low thermal conductivity.
  • Equipment that is easy to transport, lightweight and easy to install.
  • Personalization of each equipment according to specifications and needs of each customer adapting to the connections, color, dimensions.

Tecnical Sheet

PDF Product Sheet