Bag Filter Housings
Find the right bag filter housing for your industrial liquid filtration application. Filtersource offers a wide selection of single-bag, multi-bag, and duplex filter housings in carbon steel, stainless steel, polypropylene, and other configurations.
Our bag filter housings are designed to hold standard and specialty filter bags for removing suspended solids, sediment, particulate, and other contaminants from process liquids. Choose a standard housing for an existing filtration system or contact our filtration specialists for help selecting a housing for a new application.
Choose the Right Bag Filter Housing
| Housing Type | Best For | Key Benefits | Common Options |
| Single Bag | Low- to medium-flow liquid filtration | Compact, easy to install, simple bag replacement | Carbon steel, stainless steel, polypropylene; various bag sizes, connections, pressure ratings, and seals |
| Multi-Bag | Higher-flow industrial applications | Increased filtration capacity in one housing | Carbon steel or stainless steel; available for multiple Size #1 or Size #2 bags |
| Duplex | Applications requiring continuous filtration | Two chambers allow bag changes without stopping filtration, reducing downtime | Two independent filtration chambers with switch-over capability |
Select a Housing by Material
| Material | Best For | Key Benefits | Available Options |
| Carbon Steel | General industrial filtration | Durable, versatile, and available in many configurations | Various connection sizes, pressure ratings, and bag capacities |
| Stainless Steel | Corrosive or demanding process applications | Excellent corrosion resistance and durability | 304 or 316 stainless steel; various configurations |
| Polypropylene | Compatible liquids and chemical applications | Lightweight, corrosion-resistant, and non-metallic | Various configurations for compatible filtration applications |
How to Choose a Bag Filter Housing
Use these six key factors to quickly find the right housing for your application:
| What to Consider | What to Look For |
| 1. Flow Rate | Match the housing capacity to your required flow. Higher flows may need multiple bags or a multi-bag housing. |
| 2. Filter Bag Size | Make sure the housing is compatible with your required bag size, such as Size #1 or Size #2. |
| 3. Housing Material | Choose based on your fluid, temperature, environment, and chemical compatibility. Options include carbon steel, stainless steel, and polypropylene. |
| 4. Pressure & Temperature | Select a housing rated for your system's operating pressure and temperature. |
| 5. Connections & Seals | Match connections (NPT or flanged) to your piping and seals to your process fluid. Common options include Buna, EPDM, Viton, and Teflon-encapsulated seals. |
| 6. Maintenance Needs | Choose duplex housings for continuous filtration during bag changes, or single-bag housings for simpler applications. |
Not sure which housing you need? Contact our filtration experts for help selecting the right size, material, configuration, and accessories for your application.
Need a Complete Bag Filtration Solution?
A filter housing is only one part of a liquid filtration system. Filtersource also supplies liquid filter bags in a variety of materials, micron ratings, and configurations.
Pair the right housing with the appropriate filter bag to achieve the filtration performance your process requires.
Frequently Asked Questions (FAQs)
What is a bag filter housing?
A bag filter housing is a pressure vessel designed to contain one or more filter bags. Liquid enters the housing, passes through the filter bag, and exits after suspended solids and other particulate contaminants have been captured by the filtration media.
What is the difference between a single-bag and multi-bag filter housing?
A single-bag housing contains one filter bag, while a multi-bag housing contains multiple bags operating within the same vessel. Multi-bag housings are generally used when higher filtration capacity or flow is required.
When should I use a duplex bag filter housing?
A duplex bag filter housing is useful when filtration needs to continue while a filter bag is being serviced or replaced. The two chambers allow operators to switch filtration from one chamber to the other, helping minimize process downtime.
What material should a bag filter housing be made from?
The appropriate material depends on the process fluid, chemical compatibility, temperature, pressure, and operating environment. Common housing materials include carbon steel, 304 stainless steel, 316 stainless steel, and polypropylene.
What size filter bag do I need?
The required bag size depends on the housing and filtration system. Common industrial bag sizes include Size #1 and Size #2, but other configurations are available. If you are replacing an existing bag or housing, provide the current part number or dimensions to help identify the correct replacement.
Can Filtersource help me select a bag filter housing?
Yes. If you are unsure which housing is right for your application, contact Filtersource with your flow rate, process fluid, temperature, pressure, existing connection size, desired filtration level, and current housing or filter bag information. Our team can help identify an appropriate solution.
Find the Right Bag Filter Housing
Whether you need a compact single-bag housing, a high-capacity multi-bag vessel, or a duplex system for continuous filtration, Filtersource can help you find the right configuration.