Cartridge Filter
Mit Water supplies cartridge filter housings and elements for final particulate protection of reverse osmosis and nanofiltration membrane systems. Cartridge filters are the last line of defence before high-pressure membrane treatment, capturing any fine particulates that may have passed through upstream pre-treatment.
Working Principle
Water flows from the outside to the inside of pleated or melt-blown filter cartridges housed in a stainless steel pressure vessel. Particles larger than the rated pore size (typically 5 micron) are retained on the outer surface. As differential pressure across the cartridges increases, the cartridges are replaced. Cartridge filters serve as guard filters to protect downstream RO membranes from particulate damage and fouling.
System Features
Our cartridge filter systems include SS304 or SS316L housings designed to accommodate standard 2.5-inch or 4.5-inch diameter cartridges in lengths from 10 to 40 inches. Multiple cartridges are installed in a single housing. The housing includes inlet/outlet connections, vent and drain ports, and differential pressure gauges.
Cartridge filters serve as security filters for membrane protection:
- Seawater RO pre-treatment (after MMF or UF)
- Brackish water RO pre-treatment
- Industrial RO and NF system protection
- Ultrapure water system pre-filtration
- Boiler feed water treatment
- Food and beverage process water filtration
- Pharmaceutical water system pre-filtration
Technical Parameters
| Flow Rate | 1 to 500 m3/h per housing |
| Filtration Rating | 1, 5, 10, or 20 micron (absolute) |
| Housing Material | SS304 or SS316L |
| Cartridge Dimensions | 2.5 or 4.5 inch x 10 to 40 inch length |
| Cartridge Material | PP melt-blown or pleated |
| Design Pressure | Up to 10 bar |
| Max Differential Pressure | 1.0 bar (cartridge replacement) |
| Connection Type | Flanged or threaded |