Introduction

Cartridge filter housing is an essential industrial filtration component designed to remove suspended particles and contaminants from liquid streams while protecting downstream equipment.
It is widely used in water treatment, industrial process filtration, reverse osmosis pretreatment, and other liquid filtration systems.
Unlike filter cartridges that perform the actual filtration process, cartridge filter housing provides a pressure-resistant structure to hold filter cartridges and ensure stable filtration operation.
What Is a Cartridge Filter Housing?
A cartridge filter housing is a pressure vessel designed to contain one or multiple filter cartridges for liquid filtration applications.
The housing body is usually made of stainless steel materials such as SS304 or SS316, providing excellent corrosion resistance and mechanical strength.
A complete cartridge filtration system usually includes:
- Filter housing body
- Filter cartridges
- Sealing components
- Inlet and outlet connections
- Cover assembly
Common filter cartridges used with cartridge filter housings include:
- Melt blown filter cartridges
- Pleated filter cartridges
- String wound filter cartridges
- Activated carbon cartridges
- High flow filter cartridges
How Does a Cartridge Filter Housing Work?
A cartridge filter housing works by directing contaminated liquid through filter cartridges installed inside the housing.
The filtration process includes three main steps:
1. Liquid enters the housing
The contaminated liquid enters through the inlet port and flows around the filter cartridges.
2. Contaminants are captured
When liquid passes through the filter media, particles, sediment, rust, and other impurities are trapped.
3. Clean liquid exits
Filtered liquid flows out through the outlet and continues to downstream equipment.
This filtration process helps protect:
- RO membranes
- Pumps
- Valves
- Production equipment
What Are the Main Types of Cartridge Filter Housing?
Multi Cartridge Filter Housing
Multi cartridge filter housing uses multiple filter cartridges installed in parallel to increase filtration area and processing capacity.
It is suitable for applications requiring higher flow rates and continuous filtration.
Typical applications include:
- Industrial water treatment
- RO pretreatment systems
- Chemical filtration
- Food and beverage processing
Advantages:
- Higher flow capacity
- Longer cartridge service life
- Lower pressure drop
- Easy maintenance
High Flow Cartridge Filter Housing
High flow cartridge filter housing is designed for large-volume filtration applications requiring high flow capacity and reduced maintenance frequency.
Compared with traditional cartridge filter systems, high flow filter housing provides:
- Higher filtration capacity
- Smaller installation space
- Lower operating cost
- Reduced cartridge replacement frequency
Common applications include:
- Large water treatment plants
- Industrial process water filtration
- Cooling water systems
- Power generation facilitie
