What Is A Bag Filter Unit?
We, FiltEdge, will not only provide you with bag filter units, but also do working condition analysis for you according to your plant piping layout, as well as flow rate, etc. We will also design parallel, modular, compact and other kinds of filter OEM/ODM customization for you, so as to save your installation cost.
Types and Selection of Bag Filter Units
FiltEdge’s bag filter units are mainly designed according to the opening and closing methods, the number of built-in bags of a single filter, the type and direction of inlet and outlet, and other details, in order to provide you with bag filter units with different flow rates, operating modes, and processing of different slurries. For specific product information, you can provide your working condition information, and we will bring the drawings to discuss with you after reviewing your requirements.
A single multi-bag filter unit can handle up to 5000+GPM flow rate, efficiently combined with our fast quick-open design, it is very suitable for large high flow rate scenarios such as power plants, water treatment plants, etc. to greatly reduce your maintenance burden.
Industrial Mussel Open Bag Filter UnitThis filter adopts the classic eyebolt fastening opening and closing method, which is 100% capable of maintaining pressure stability and preventing leakage in the face of high-pressure environments, suitable for use with liquids of harsh chemical properties to protect your production safety.
Top-Entry Bag Filter Housing20-40m³/h, suitable for 1#, 2#, 3#, 4# filter bags, precision optional 1-1000μm, highly efficient filtration of small and medium flow rate liquids such as chemical industry, RO pre-treatment, ink, food liquid, and so on.
Standard Side-Entry Bag FilterFlow rate of about 15-30m³/h, concave precision casting top cover, no bypass internal sealing, low pressure loss, customizable pressure, material, interface direction, etc., to cope with your complex working conditions.
Technical Characteristics of Bag Filter Unit
FiltEdge has customized a bag filter device for harsh working conditions and comprehensively upgraded its technology to solve your filtration problems and improve your production efficiency.

Our filter has a quick open design, allowing you to open it in just 15 seconds by yourself.

Provide SS304/SS316/carbon steel/PVDF/PP filter housing materials, which can be used for acid, alkali, solvents, etc.

With an accuracy range of 1-2000 μ m, you can improve your filtration efficiency and product quality by selecting filter bags with different accuracies.

A single machine can reach 5000+GPM. If your flow rate is very large, you can choose to use bag filter units in parallel.

The three-point locking anti leakage design prevents the leakage of hazardous substances and ensures the safety of your working environment.

Each bag filter unit is equipped with an exhaust valve, which can effectively prevent pressure operation and ensure the safety of your production line.

As long as you purchase filter bags that meet international or FSI standards, they can be used, saving you on consumables expenses.

We can provide you with various process requirements such as sandblasting/polishing/coating/acid pickling and passivation to meet compliance and aesthetic requirements.
Quick Opening Design of Bag Filter Unit
FiltEdge’s quick opening bag filter unit allows you to open heavy-duty lids in just 15 seconds by yourself, thanks to our gravity assisted vertical lifting technology that allows you to quickly replace filter bags without the need for complex tools. Compared to traditional filtration equipment, it can increase your bag changing efficiency by 120 times, save you 2-3 downtime per day, and improve your product production efficiency.


Modular Bag Filter Unit
The bag filter unit of FiltEdge adopts a small vertical floor structure, which is suitable for various workshop layouts. In order for you to quickly install it, our bag filter can not only adjust the details such as the support legs, but also create a modular pry block design for you. You can receive the filter without the need to assemble it component by component, simply plug it into your pipeline and start production mode as soon as possible.
Customized Bag Filter Unit
We can customize bag filter units for you based on information such as flow rate, pressure, medium properties, and space for your specific operating conditions. Let the filters exclusive to your production line solve problems such as blockage, low efficiency, incomplete filtration, leakage, and more.

Why Choose FiltEdge's Bag Filter Unit?


FiltEdge LLC is a U.S. company established in 2023, supported by SFFILTECH in China, established in 2006. Manufacturing support is provided through SFFILTECH in China. Confirm product specifications, available quality documents, pricing and delivery in the quotation. Certificates must be checked for the relevant entity, facility and product. Support is arranged during business hours; any on-site service or warranty terms require separate agreement.
Applications of Bag Filter Units
FiltEdge’s bag filter unit can be used in new energy, electronic plating, textile, paper making, machining and other industries. It has a wide range of applications, far beyond the above application areas. You can tell us your process requirements, and we will help you do the analysis. Choose the suitable model for you, so that your production line can run continuously and efficiently.

Mainly used for the filtration of corrosive media, chemical raw materials, solvents, resins, coatings, inks, etc., such as electrode slurry filtration for lithium batteries; efficient recovery of NMP solvents.

Precision filtration with filtration precision greater than 1μm, such as pharmaceutical intermediates, pharmaceutical solutions, injections and RO pretreatment, which can meet GMP production standards to ensure quality and safety.

Commonly used in the filtration of drinking water, fruit juice, beer, edible oil, syrup, dairy products, etc., to ensure the purity and taste of finished products.

Commonly used in the pretreatment and depth filtration of industrial wastewater and municipal wastewater to reduce the COD and heavy metal content of wastewater by intercepting suspended matter, particles and pollutants in wastewater. The reuse rate of industrial water can be increased to about 94%.

It can be used for lithium battery electrolyte purification, positive electrode slurry filtration and photovoltaic wafer cutting liquid recovery.
Specifications of Bag Filter Units
The following parameters are the common information of bag filter units in our company, helping you to quickly understand the style you need. For more detailed information, please contact us and we will give you a quotation after reviewing your requirements.
- Specifications of Bag Filter Units
| Model | Filter bag quantity | Material | Opening method | Design Pressure | Operating Temperature | Filtration Accuracy | Flow Rate | Filter Bag Specifications | Interface Method | Design Standards |
| Quick-open bag filter units
| 3/4/5/6/8/12/17/23PCS | 304 stainless steel (316 optional) + high quality O-rings | Quick-open, vertical lid, gravity-assisted, one-finger operation | 0.6-1.6MPa (customizable 10-25bar) | -20°C to 120°C (EPDM); up to 150°C (PTFE/Viton) | 1-1000μm (commonly used 1/5/10/25/50/100μm) | 175GPM-4000+GPM (depending on number of filter bags and media viscosity) | #1 (7 “x16”)/#2 (7 “x32”) International/FSI standards, customization available | Flanges/Threads/Clamps/Customized direction (side→bottom/side→side/top→bottom) | ASME Section VIII Div.1 / CE-PED / GB150 |
| Mussel open type bag filter units | 3/4/5/6/8/12/17/23 pcs. | 304/316 stainless steel | Lifting ring bolt fastening cover + spring balancing aid (stay at any angle) | 6-16 bar (customized up to 25 bar) | -20°C to 120°C (EPDM); up to 150°C (PTFE/Viton) | 1-1000μm (commonly used 1/5/10/25/50/100μm) | 525GPM-4000+GPM (depending on number of filter bags and media viscosity) | #01/#02 International/FSI standards, optional bags/cartridges available | Flange Connection | ASME Section VIII Div.1 / CE-PED / GB150 |
| Rocker arm type bag filter units | 2-23pcs (up to 32pcs for single machine) | Q235 carbon steel/304/316L stainless steel | quick-open+rocker arm auxiliary top cover | 6-10bar (higher specifications can be customized) | -20℃ to 120℃ (standard sealing); up to 150℃ (depending on sealing materials) | 1-1000μm (standard 1/5/10/25/50) μm) | 350GPM-5600GPM (depending on the number of bags and viscosity of the medium) | International/FSI Standard #01/#02 Filter Bag | Flange Connection (inlet and outlet DN80-DN300) | ASME Section VIII Div.1 / CE-PED / GB150 |
| Single bag top-entry bag filter units | #1/#2/#4 bags | 304/316L stainless steel/carbon steel/PP/PVDF | quick-opening top cover, ringless quick-change structure | 6-10bar | Metal: -20℃ to 95℃; PP ≤ 70℃; PVDF ≤ 90℃ | 1-1000μm | 20-40m³/h (based on #2 bag depending on media viscosity and precision) | #1/#2/#4 bag | flange/thread/clamp in line | with industry standards, support for customization |
| Single bag side-entry bag filter units | #1/#2 bag | 304/316L stainless steel | quick release (open by unscrewing the nut) | ≤ 1.0MPa (higher pressure can be customized) | -20℃ to 95℃ (depending on the sealing material) | 1-1000μm | 15-30m³/h (based on #2 bag, depending on the accuracy and viscosity of the medium) | #1/#2 bag | Standard flanges | industry standards and support customization. |
FiltEdge can help you do the selection analysis. If you have the SDS data of the slurry or your requirements, we can help you analyze the filtration medium, corrosiveness, flow rate, precision, pressure, temperature, etc., and then choose the right bag filter unit for you and provide design drawings.
The replacement frequency of the filter bag depends on the impurity content of the filter media, the higher the impurity content, the higher the replacement frequency, usually about 1-7 days. You can install a pressure gauge on the bag filter to determine whether the filter bag needs to be replaced by the differential pressure value.
Our bag filters have a quick-opening filter, which makes the replacement of filter bags quick and labor-saving, and can be operated by one person.
Our bag filters are available in 5 materials, 304/316 stainless steel typically lasts 8-10 years, carbon steel lasts 5-7 years, and PP/PVDF typically lasts 6-8 years. Service life is not only related to the material, but also to how and how often the equipment is maintained and how well the initial filter purchased matches the operating conditions.




