Multicartridge filters combine all the advantages of cartridge filters with even greater efficiency. They consist of a housing made of steel and replaceable cartridges. The filtered medium flows from the outside to the inside of the cartridge, so that dirt is retained on the outer surface of the cartridge. Multicartridge filters can be used for both gas and liquid filtration.

Cartridges are available, both disposable and reusable. Disposable cartridges include polypropylene and membrane cartridges, while reusable cartridges include steel, mesh and slotted cartridges that can be cleaned.

Multicartridge filter housing
Multicartridge filter housing

Reusable cartridges:

  • depth-pipe cartridge filters – produced by blowing fibres from thermoplastics, polypropylene, polyamide and polyester; they are characterized by a deep filtration mechanism;
  • depth-pleated cartridge filters – pleated non-woven fabric filters made of polypropylene, glass microfibre or polyester; they can provide microbiological protection;
  • pleated membrane cartridge filters – a precise barrier for microorganisms and control of solid contaminants in the electronics industry.

Depending on the filtration efficiency, we can divide the cartridges into three series: economical (efficiency about 85-90%), nominal (efficiency 95%), absolute (efficiency 99.9%). Available filtration accuracies range from 0.5 to 100 microns.

Typical number of cartridges:
  • 1
  • 3
  • 5
  • 7
  • 12
Typical length of cartridge:
  • 5”
  • 7”
  • 10”
  • 20’’
  • 30’’
  • 40’’
  • 50”
  • 60”
  • 222
  • 226
  • DOE
  • other
Material of housing:
  • AISI 304,
  • AISI 316
Surface finish:
  • satin;
  • polished;
  • electropolished
Max pressure:
  • 6 bar;
  • 10 bar;
  • 16 bar;
Type of connections:
  • Flange,
  • Tri-clamp;
  • milk screwing;
  • other
Connections standards:

DIN; ISO; SMS; other

Cartridge filters are used to filter gases (air, nitrogen, steam and other) as well as liquids. Due to their high efficiency and wide availability, they are very popular in pharmaceutical, cosmetic and food industries.