When an industrial filtration system needs to process large liquid volumes, a single bag filter housing is often not enough. High flow rates, heavy contaminant loading, limited maintenance windows, and continuous production requirements all demand a stronger and more efficient solution. This is where a reliable multi bag filter housing manufacturer becomes important.
Macrokun designs and supplies industrial multi bag filter housings for water treatment, chemical processing, food and beverage production, paint and coating filtration, oil and gas, desalination, power generation, and general process liquid filtration. Our housings are built to help customers increase flow capacity, reduce downtime, simplify bag replacement, and protect downstream equipment.
A multi bag filter housing is not just a large vessel. It is a pressure-rated filtration unit that must provide stable sealing, even flow distribution, safe operation, corrosion resistance, and easy maintenance. For industrial users, choosing the right manufacturer can directly affect filtration efficiency, production stability, and long-term operating cost.
A multi bag filter housing is an industrial liquid filtration vessel designed to hold multiple filter bags inside one housing. During operation, liquid enters the housing, flows through the filter bags, and exits after suspended solids, sediment, rust, fibers, gels, and other particles are captured by the bag media.
Compared with a single bag filter housing, a multi bag filter housing provides a larger filtration area and higher dirt-holding capacity. This allows the system to handle greater flow rates without installing many separate single-bag units.
A typical multi bag filter housing includes:
The filter housing provides the mechanical structure, while the filter bags determine the micron rating and particle removal performance. By changing the filter bag material and micron rating, the same housing can be used for different filtration requirements.
Industrial filtration systems often face a common challenge: how to increase flow capacity without making the system too large, too complex, or too expensive to maintain.
A multi bag filter housing solves this problem by placing several filter bags inside one vessel. This creates a larger filtration surface area while keeping the system compact and easy to operate.
The most important benefit of a multi bag filter housing is high flow capacity. Instead of using several single bag filter housings in parallel, one multi bag housing can process a large volume of liquid through multiple bags at the same time.
This is especially useful in applications such as cooling water, process water, chemical liquids, paints, coatings, wastewater, seawater pre-filtration, and RO pre-treatment.
More filter bags mean more filtration area and more space to hold contaminants. This helps extend filter bag service life and reduce the frequency of bag replacement.
For liquids with high solids content, a multi bag filter housing can provide more stable operation and fewer shutdowns compared with smaller filtration systems.
Replacing many single housings can require more labor, more isolation valves, and more downtime. A multi bag filter housing centralizes the filtration process in one vessel, making maintenance easier and faster.
When designed with a quick-opening cover, lifting device, and proper drain structure, operators can replace bags efficiently and safely.
A multi bag filter housing can reduce the number of vessels, pipelines, valves, and installation points required for high-flow filtration. This helps save space and simplify the overall system layout.
For skid-mounted systems, equipment rooms, and plant upgrades, this compact design can be a major advantage.
Different filter bags can be selected according to the required filtration accuracy, liquid type, temperature, and chemical compatibility. Common filter bag materials include polypropylene, polyester, nylon, stainless steel mesh, and other specialty materials.
By changing the bag micron rating, users can adjust the system for coarse filtration, pre-filtration, or fine particle removal.
As a professional industrial filtration supplier, Macrokun focuses on practical performance, stable manufacturing quality, and project-based customization. Our multi bag filter housings are designed for demanding industrial environments where reliability matters.
Macrokun multi bag filter housings can be manufactured from stainless steel, carbon steel, or other customized materials based on working conditions.
Common material options include:
Stainless steel is widely used for water treatment, food and beverage, chemical processing, and high-cleanliness applications. Carbon steel may be suitable for certain industrial water and general filtration systems where corrosion is less severe.
The internal structure of a multi bag filter housing should allow liquid to distribute evenly across all filter bags. Uneven flow can cause premature blockage, poor filtration performance, or inconsistent pressure drop.
Macrokun designs housings with practical flow paths, strong basket support, and stable bag positioning to help achieve reliable filtration under high-flow conditions.
Bypass is one of the main problems in liquid filtration. If liquid passes around the filter bag instead of through it, filtration efficiency is reduced.
Macrokun multi bag filter housings are designed with secure basket support, proper bag compression, and dependable cover sealing. This helps reduce leakage risk and supports more consistent particle removal.
Industrial users need equipment that is easy to maintain. Macrokun can provide practical design options such as swing bolt closure, hinged cover, lifting device, drain port, vent port, and customized opening structure.
These features help operators replace filter bags faster, reduce downtime, and improve maintenance safety.
Every filtration project has different requirements. Macrokun can customize multi bag filter housings according to:
This makes Macrokun suitable for OEM projects, engineering contractors, industrial end users, and filtration system integrators.
The following table shows common specification options. Final designs can be customized according to project requirements.
| Item | Common Options |
|---|---|
| Product Name | Multi Bag Filter Housing |
| Manufacturer | Macrokun |
| Housing Type | Multi-bag liquid filter vessel |
| Bag Quantity | 2 bags, 3 bags, 4 bags, 6 bags, 8 bags, 10 bags or customized |
| Housing Material | SS304, SS316, SS316L, carbon steel, customized |
| Filter Bag Size | Size #1, Size #2 or customized |
| Micron Rating | Determined by filter bag, commonly 1–2000 microns |
| Inlet/Outlet | Flange, thread, clamp, or customized |
| Closure Type | Swing bolt, quick open, hinged cover, customized |
| Seal Material | EPDM, NBR, silicone, PTFE, Viton optional |
| Basket Material | Stainless steel or customized |
| Surface Treatment | Polished, sandblasted, painted, passivated or customized |
| Installation | Vertical structure, skid-mounted option available |
| Application | Water, chemical, food, coating, oil, wastewater, process liquid |
| Custom Service | Available |
Multi bag filter housings are widely used for industrial water filtration, including process water, cooling water, circulating water, and wastewater pre-treatment. They remove suspended solids and protect pumps, valves, heat exchangers, membranes, and downstream filtration equipment.
For high-volume water treatment systems, multi bag housings offer a practical balance of flow capacity, dirt holding, and maintenance cost.
Chemical liquids often contain particles, gels, catalysts, fibers, or reaction residues. A multi bag filter housing can help clarify the liquid, protect equipment, and improve product consistency.
Material selection is very important in chemical filtration. Macrokun can recommend stainless steel or customized materials based on liquid compatibility, pressure, and temperature.
Paint and coating filtration requires stable removal of agglomerates, gels, and large particles before filling or application. Multi bag filter housings are suitable for high-viscosity and high-volume coating processes.
They help improve final product quality, reduce nozzle blockage, and protect downstream equipment.
In food and beverage plants, multi bag filter housings can be used for ingredient water, process water, edible liquids, sugar solutions, beverages, and general pre-filtration.
For these applications, stainless steel construction and suitable surface treatment are commonly preferred.
Before reverse osmosis systems, suspended solids should be removed to reduce membrane fouling. Multi bag filter housings can be used as a coarse or pre-filtration stage before finer cartridge filters or membrane systems.
This helps improve RO system stability and extend membrane service life.
In oil and gas applications, multi bag filter housings can be used for produced water, injection water, process fluids, and general liquid filtration. Their high dirt-holding capacity makes them suitable for demanding environments with variable contaminant loads.
Seawater pre-filtration requires corrosion resistance and high flow capacity. Multi bag filter housings can be used before finer filtration stages to remove larger particles, algae, sediment, and suspended matter.
For seawater applications, material selection must consider chloride corrosion carefully.
| Item | Multi Bag Filter Housing | Single Bag Filter Housing |
|---|---|---|
| Flow Capacity | High | Low to medium |
| Filter Area | Large | Limited |
| Dirt Holding | Higher | Lower |
| Maintenance Frequency | Lower in high-flow systems | Higher in high-flow systems |
| Footprint | Compact for large flow | Multiple units may be required |
| Best Use | Industrial high-flow filtration | Small batch or lower flow filtration |
| Initial Cost | Higher | Lower |
| Long-Term Cost | Lower for large systems | Higher when many units are needed |
A single bag filter housing is suitable for smaller systems or batch processes. However, when flow rate increases, a multi bag filter housing becomes more efficient and easier to manage.
| Item | Multi Bag Filter Housing | Cartridge Filter Housing |
|---|---|---|
| Best For | High dirt loading and coarse to medium filtration | Fine filtration and precise particle removal |
| Filter Element | Filter bag | Filter cartridge |
| Dirt-Holding Capacity | High | Depends on cartridge type |
| Replacement Cost | Usually economical | Can be higher |
| Filtration Accuracy | Broad range, often coarse to medium | Better for fine filtration |
| Maintenance | Easy bag replacement | Cartridge replacement may take longer |
| Common Use | Water, paint, chemical, wastewater | RO protection, fine process filtration, polishing |
Bag filters are often more economical for high-flow and high-solids applications. Cartridge filters are better when the system requires finer and more consistent particle removal. In many industrial systems, bag filters and cartridge filters are used together: bag filtration first, then cartridge filtration for polishing.
| Item | Multi Bag Filter Housing | Basket Strainer |
|---|---|---|
| Filtration Precision | Finer options available | Mainly coarse filtration |
| Filter Media | Replaceable filter bag | Metal basket or screen |
| Dirt Holding | High | Moderate |
| Particle Removal | Better for smaller particles | Better for large debris |
| Maintenance | Replace bag | Clean basket |
| Typical Use | Industrial liquid filtration | Pump protection and coarse debris removal |
Basket strainers are useful for removing large particles and protecting pumps. However, for applications requiring better particle capture and flexible micron ratings, a multi bag filter housing is usually more suitable.
Selecting the right multi bag filter housing requires more than choosing a vessel size. The following factors should be reviewed before purchasing.
The housing should be sized according to normal flow rate, peak flow rate, and future expansion. If the housing is too small, pressure drop will rise quickly and bags will need frequent replacement.
Liquids with high solids content require larger filtration area and stronger dirt-holding capacity. More bags may be needed to extend service life and reduce maintenance frequency.
The micron rating depends on the filter bag. Coarse filtration may use higher micron ratings, while finer filtration requires lower micron ratings. The correct choice depends on downstream equipment and final liquid quality requirements.
SS304 is suitable for many general applications. SS316 and SS316L offer better corrosion resistance. Carbon steel may be used for certain industrial water applications. Special materials may be needed for corrosive liquids.
The housing must be designed for the real operating pressure and temperature. Seal material should also be selected according to temperature, chemical compatibility, and cleaning conditions.
The number of bags determines flow capacity and dirt-holding ability. Macrokun can recommend the suitable bag quantity based on your flow rate and application.
Operators need enough space to open the cover, remove baskets, replace bags, and clean the housing. The installation layout should consider safe and convenient maintenance.
Macrokun understands industrial filtration requirements. Our goal is not only to supply a housing, but to provide a filtration solution that fits your process conditions.
We can customize multi bag filter housings according to project requirements, including material, size, pressure rating, bag quantity, connection type, seal material, and surface treatment.
Macrokun supports water treatment companies, filtration equipment suppliers, OEM manufacturers, engineering contractors, distributors, and industrial end users.
If you are not sure which housing size or bag quantity to choose, Macrokun can help review your liquid type, flow rate, micron rating, pressure, temperature, and application requirements.
A multi bag filter housing removes particles and suspended solids from industrial liquids by using multiple filter bags inside one pressure vessel. It is suitable for high-flow and high dirt-loading applications.
A multi bag filter housing provides higher flow capacity and larger dirt-holding capacity. It reduces the need for multiple single housings and makes high-flow filtration easier to manage.
Yes. Macrokun can customize material, bag quantity, inlet and outlet size, pressure rating, seal material, surface finish, and overall structure according to your project.
Common industries include water treatment, chemical processing, food and beverage, paint and coating, oil and gas, desalination, power generation, paper manufacturing, and wastewater treatment.
The micron rating depends on the selected filter bag. Common ratings can range from coarse filtration to fine filtration, depending on the bag material and application.
For general water filtration, SS304 is often suitable. For corrosive liquids or higher hygiene requirements, SS316 or SS316L may be better. For some industrial water systems, carbon steel can be considered.
If you are looking for a reliable multi bag filter housing manufacturer, Macrokun can provide industrial filtration housings designed for your process conditions.
Please send us your project details, including:
Contact Macrokun today to get a customized multi bag filter housing solution for your industrial filtration system.
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