In industrial filtration, flow capacity, dirt-holding ability, maintenance efficiency, and filtration reliability all matter. When a single bag filter housing cannot handle the required flow rate or contaminant load, a multi bag filter housing becomes a more practical and cost-effective solution.
A multi bag filter housing is designed to hold several filter bags inside one pressure vessel. This structure allows large volumes of liquid to be filtered efficiently while reducing the number of separate housings, valves, pipelines, and maintenance points required in the system.
Macrokun supplies industrial multi bag filter housing solutions for water treatment, chemical processing, food and beverage production, paint and coating filtration, oil and gas, power generation, desalination, electronics manufacturing, and wastewater treatment. Our housings are designed to support stable flow, reliable sealing, easy bag replacement, and long-term industrial performance.
Whether your project requires a stainless steel multi bag filter housing for process water or a customized unit for corrosive liquid filtration, Macrokun can help you select the right structure, material, bag quantity, connection type, and filtration configuration.
A multi bag filter housing is an industrial filtration vessel that contains multiple filter bags inside one housing body. During operation, liquid enters the vessel, flows into each filter bag, passes through the filter media, and exits after particles and suspended solids are captured.
The housing provides the pressure-rated structure and sealing system. The filter bags provide the actual particle removal function. By changing the filter bag material and micron rating, the same housing can be used for different filtration requirements.
A typical multi bag filter housing includes:
Compared with a single bag filter housing, a multi bag design provides a larger filtration area and higher dirt-holding capacity. This makes it suitable for continuous industrial systems and large-flow filtration processes.
Many industrial filtration systems start with single bag housings. However, when flow rate increases, several problems can appear. Operators may need to install multiple single-bag units in parallel, replace bags frequently, and manage more valves and piping. This increases installation cost, labor time, and maintenance complexity.
A multi bag filter housing solves these problems by combining several filter bags in one vessel.
The main reason to use a multi bag filter housing is to process a larger liquid volume. Multiple bags work at the same time, increasing the total filtration area and allowing higher flow through one housing.
This is especially useful for industrial water treatment, cooling water, chemical production, coating filtration, desalination pre-treatment, and wastewater applications.
More filter bags mean more space to collect particles. This helps extend service life and reduce the frequency of bag replacement.
For liquids with high suspended solids, such as process water, wastewater, paint, resin, or chemical liquids, higher dirt-holding capacity can reduce downtime and improve process stability.
In high-flow systems, using several single housings can make maintenance time-consuming. Operators may need to open multiple vessels, isolate several lines, and replace many bags separately.
With a multi bag filter housing, the filtration area is centralized in one unit. This makes maintenance easier and reduces the number of components that need to be opened or serviced.
A multi bag filter housing can replace multiple single bag units. This reduces footprint, simplifies piping, and makes the filtration skid or equipment room cleaner and easier to manage.
For industrial plants with limited installation space, this compact layout is a major advantage.
The filtration accuracy depends on the filter bag selected. Common filter bag micron ratings can range from coarse filtration to fine filtration. Users can choose polypropylene, polyester, nylon, stainless steel mesh, or other bag materials according to the liquid type and filtration goal.
This makes the housing flexible for many different applications.
Macrokun multi bag filter housings are designed for demanding industrial environments. Depending on the application, the housing can be manufactured from stainless steel, carbon steel, or customized corrosion-resistant materials.
Common material options include:
Stainless steel is widely used for water treatment, food and beverage, chemical processing, and clean liquid filtration. Carbon steel can be used for certain general industrial water applications where corrosion resistance requirements are lower.
A good multi bag filter housing must distribute liquid evenly across all filter bags. If the internal flow is uneven, some bags may block faster than others, causing unstable pressure drop and shorter service life.
Macrokun focuses on practical flow design, stable basket support, and reliable bag positioning to help the housing perform consistently under high-flow conditions.
Bypass is a common filtration problem. It happens when liquid escapes around the filter bag instead of passing through it. This reduces filtration efficiency and may allow particles to reach downstream equipment.
Macrokun multi bag filter housings are designed with secure basket seating, proper bag sealing, and dependable cover closure. This helps ensure that liquid flows through the filter bags as intended.
Maintenance convenience is very important in industrial filtration. Macrokun can provide user-friendly design options such as swing bolt closure, quick-opening cover, hinged cover, lifting device, drain port, and vent port.
These features make bag replacement safer and faster, helping operators reduce downtime during maintenance.
Not every industrial filtration system is the same. Flow rate, pressure, liquid chemistry, installation space, pipe size, and operating temperature can all vary.
Macrokun can customize multi bag filter housing specifications according to your project, including housing size, bag quantity, material, connection type, seal material, pressure rating, surface treatment, and support structure.
The following table shows common specification options for Macrokun multi bag filter housings. Final specifications can be customized according to your working conditions.
| Item | Common Options |
|---|---|
| Product Name | Multi Bag Filter Housing |
| Brand | Macrokun |
| Housing Type | Industrial multi-bag liquid filter vessel |
| Bag Quantity | 2, 3, 4, 6, 8, 10, 12 or customized |
| Filter Bag Size | Size #1, Size #2 or customized |
| Housing Material | SS304, SS316, SS316L, carbon steel, customized |
| Basket Material | Stainless steel or customized |
| Micron Rating | Determined by filter bag, commonly 1–2000 microns |
| Inlet/Outlet Connection | Flange, thread, clamp, or customized |
| Closure Type | Swing bolt, quick open, hinged cover, customized |
| Seal Material | EPDM, NBR, silicone, PTFE, Viton optional |
| Operating Pressure | Customized according to system design |
| Operating Temperature | Based on material and seal selection |
| Surface Treatment | Polished, sandblasted, painted, passivated, customized |
| Installation | Vertical design, skid-mounted option available |
| Application | Water, chemical, food, coating, oil, wastewater, process liquid |
| Custom Service | Available |
Multi bag filter housings are widely used in industrial water treatment systems. They remove sediment, rust, suspended solids, and other particles before water enters pumps, heat exchangers, membranes, or process equipment.
Common uses include:
For high-flow water systems, a multi bag filter housing helps reduce equipment quantity and improve maintenance efficiency.
Chemical liquids may contain reaction residues, catalysts, gels, fibers, or solid impurities. A multi bag filter housing can help remove these contaminants and protect downstream equipment.
In chemical applications, material compatibility is critical. Macrokun can recommend stainless steel, carbon steel, or customized materials based on liquid composition, pressure, temperature, and corrosion conditions.
Paints, coatings, and inks often require filtration before filling, spraying, or further processing. A multi bag filter housing can remove agglomerates, gels, skin particles, and other impurities that may affect product quality.
For high-viscosity fluids or high-volume production lines, multi bag housings provide larger filtration area and easier operation.
In food and beverage production, filtration is used for process water, ingredient water, edible liquids, sugar solutions, beverages, and pre-filtration before finer treatment.
Stainless steel multi bag filter housings are commonly selected for these applications because of their durability, cleanability, and corrosion resistance.
Oil and gas operations often involve high-volume liquid filtration. Multi bag filter housings can be used for produced water, injection water, process fluids, and general particle removal.
Their high dirt-holding capacity makes them suitable for applications where contaminant levels may change during operation.
Before seawater enters fine filtration or membrane systems, larger particles, sediment, algae, and suspended solids should be removed. A multi bag filter housing can be used as a pre-filtration stage in desalination systems.
For seawater applications, material selection should consider chloride corrosion. Stainless steel grade, coating, or special material options may be required depending on the project.
Power plants require reliable liquid filtration for cooling water, boiler feed water pre-treatment, condensate systems, and general process water. A multi bag filter housing helps protect pumps, valves, nozzles, heat exchangers, and downstream treatment equipment.
| Item | Multi Bag Filter Housing | Single Bag Filter Housing |
|---|---|---|
| Flow Capacity | High | Low to medium |
| Filtration Area | Large | Limited |
| Dirt-Holding Capacity | Higher | Lower |
| Maintenance Frequency | Lower in large systems | Higher in large systems |
| Installation Footprint | Compact for high flow | Multiple units may be needed |
| Best Use | Industrial high-flow filtration | Small systems or batch filtration |
| Initial Investment | Higher | Lower |
| Long-Term Cost | More economical for large flow | Can be higher when many units are required |
A single bag filter housing is suitable for smaller systems. However, when the flow rate is high, a multi bag filter housing is usually more efficient, compact, and easier to maintain.
| Item | Multi Bag Filter Housing | Cartridge Filter Housing |
|---|---|---|
| Filter Element | Filter bag | Filter cartridge |
| Best Application | High-flow, high dirt-loading filtration | Fine filtration and polishing |
| Filtration Accuracy | Broad range, often coarse to medium | Usually more precise |
| Dirt-Holding Capacity | High | Depends on cartridge design |
| Replacement Cost | Usually economical | Often higher |
| Maintenance | Simple bag replacement | Cartridge replacement may take longer |
| Common Use | Water, chemical, coating, wastewater | RO protection, fine process filtration |
Bag filter housings are often chosen for high-flow and high-contaminant applications. Cartridge filter housings are better when finer and more consistent particle removal is needed. In many systems, both are used together: bag filtration first, cartridge filtration second.
| Item | Multi Bag Filter Housing | Basket Strainer |
|---|---|---|
| Filtration Function | Removes particles using filter bags | Removes large debris using metal basket |
| Micron Options | Wide range | Usually coarse |
| Dirt Holding | High | Moderate |
| Media Replacement | Replace filter bag | Clean basket |
| Particle Removal | Better for smaller particles | Better for large debris |
| Typical Use | Process liquid filtration | Pump and pipeline protection |
A basket strainer is suitable for large debris removal. A multi bag filter housing is better when the system requires flexible micron ratings and more effective particle capture.
Flow rate is the first selection factor. The housing must be large enough to handle normal flow and peak flow without excessive pressure drop. If the housing is undersized, filter bags will block quickly and maintenance frequency will increase.
Liquids with heavy solids require more filtration area and larger dirt-holding capacity. In this case, a housing with more bags may be needed.
The micron rating should match your filtration purpose. Coarse filtration may use higher micron ratings, while finer filtration requires lower micron ratings. The right choice depends on downstream equipment and final product quality requirements.
Material selection depends on liquid chemistry, corrosion risk, temperature, pressure, and hygiene requirements.
The housing must be designed for actual operating pressure and temperature. Seal material must also be compatible with the liquid and cleaning process.
Operators need enough space to open the cover, remove baskets, replace filter bags, and clean the housing. Installation layout should always consider maintenance access.
Macrokun provides industrial filtration products designed for real working conditions. We understand that customers need more than a standard housing. They need a reliable filtration solution that fits their process, reduces downtime, and supports long-term operation.
Macrokun can customize multi bag filter housings according to your technical requirements, including:
Our multi bag filter housings are suitable for OEM filtration systems, engineering projects, water treatment plants, chemical factories, food and beverage facilities, coating production lines, and industrial end users.
If you are not sure which housing size, material, or bag quantity to choose, Macrokun can help review your flow rate, liquid type, micron rating, pressure, temperature, and application requirements.
A multi bag filter housing is used to remove particles, sediment, suspended solids, fibers, gels, and other contaminants from industrial liquids. It is commonly used in water treatment, chemical processing, coating filtration, food and beverage production, oil and gas, and wastewater treatment.
Liquid enters the housing and flows through multiple filter bags. Particles are captured by the bag media, while the filtered liquid exits through the outlet.
The main advantages are higher flow capacity, larger dirt-holding capacity, lower maintenance frequency, compact system design, and flexible micron rating options.
Yes. Macrokun can customize housing material, bag quantity, connection size, pressure rating, seal material, surface finish, and installation structure according to your project.
Size #2 filter bags are commonly used in industrial multi bag filter housings, but other sizes can also be selected depending on the system design.
Stainless steel offers better corrosion resistance and is suitable for many water, chemical, food, and process liquid applications. Carbon steel may be more economical for certain industrial water systems where corrosion is less severe.
If you need a reliable multi bag filter housing for industrial liquid filtration, Macrokun can provide a solution based on your process requirements.
Please send us your project information, including:
Contact Macrokun today to get a customized multi bag filter housing solution for your industrial filtration system.
Pre: Multi Bag Filter Housing Manufacturer for High-Flow Industrial Filtration
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