High Performance Liquid Filter Bags for Industrial Filtration Applications
FiltEdge Liquid Filtration Bags are suitable for a wide range of liquid handling processes and can be adapted to different viscosities, contamination levels and system requirements.
- Experienced manufacturer of liquid filter bags
- Stable production and strict quality control
- Standard and customized sizes available
- Fast delivery for batch and urgent orders
- OEM and private label support
- Optimized performance and service life
- Wide range of materials used in water treatment, chemical, food and other industries
What is a Liquid Filter Bag?
Liquid filter bag is usually installed inside the bag filter housing and is the most common replaceable filter element for coarse filtration, which can help you efficiently remove solid particles and impurities in the liquid and improve the overall filtration efficiency. During operation, the liquid passes through the filter media smoothly, while the contaminants are effectively trapped on the surface of the filter media or inside, which ensures that your production process is more reliable and controllable.
For different applications, you have the flexibility to choose between surface (mesh) or deep (felt) filtration to match different particle sizes and contaminant loading conditions. Choosing the right liquid filtration bag not only helps improve product quality, but also reduces wear and tear on your equipment, lowering your maintenance costs.
Select the Right Filter Bag by Filtration Type
Liquid filter bags can be divided into standard mesh, standard felt and microfiber types according to the filtration mechanism, which are suitable for surface filtration, deep filtration and high-precision filtration to meet the filtration requirements of different industrial working conditions.
Selection of Liquid Filter Bags by Size
Standard sizes #1 (7“ × 17”) and #2 (7“ × 32”) are available to fit standard #1 and #2 filter housings and most bag filter housings at . Custom sizes are also available to meet special system requirements.
Size 1 Filter BagsStandard sizes #1 (7“ × 17”) and #2 (7“ × 32”) are available to fit standard #1 and #2 filter housings and most bag filter housings at . Custom sizes are also available to meet special system requirements.
#2 Filter BagLarger 7“ × 32” design for higher flow rates and longer service life, most commonly used in industrial filtration.
OEM Liquid Filter BagCan be customized according to your needs, including material, size, filtration precision and structure design, to meet the filtration requirements of different working conditions.
Selection of Liquid Filter Bags by Material
Choose the right filter material for your process needs, including chemical-resistant PP (polypropylene), high-strength PE (polyester), reusable nylon mesh, and PTFE for high-temperature applications.
PP Filter BagPP filter bags are made of polypropylene with excellent chemical resistance and cost-effective performance for most general industrial liquid filtration scenarios.
PE Filter BagPE filter bag is made of high-strength polyester fiber structure, with good temperature resistance and mechanical strength, able to stably intercept particles, suitable for a variety of industrial filtration conditions.
Nylon Filter BagNylon filter bag is made of high-strength nylon mesh, with excellent abrasion resistance and reusable characteristics, and can realize accurate micron filtration effect.
PTFE Liquid Filter BagPTFE liquid filter bags are designed for highly corrosive environments with excellent high temperature resistance and high purity filtration capability, suitable for harsh industrial liquid filtration applications.
Selection of Liquid Filter Bags by Filtration Precision
Provide filtration precision ranging from 1-200 micron A wide range of filtration precision can be selected, which can realize particle control from coarse filtration to fine filtration according to different process requirements.
1 Micron Filter Bag1 micron filter bag is designed for ultra-fine filtration, which can efficiently remove very small particles and suspended solids to meet the requirements of high purity liquid filtration.
5 Micron Filter Bag5 micron filter bag is suitable for precision filtration, which can stably intercept fine impurities and improve the purity of liquid and process stability.
10 Micron Filter BagThe 10 micron filter bag realizes a good balance between precision and flow rate, and is widely used in the routine fine filtration of industrial liquids.
25 Micron Filter Bag25 micron filter bag is suitable for medium particle filtration, effectively removes visible impurities and ensures stable operation of back-end equipment.
50 Micron Filter Bag50 micron filter bag is used for coarse filtration stage, which can quickly intercept large particles and extend the service life of subsequent filtration system.
100 Micron Filter Bag100 micron filter bag is suitable for pre-filtration, which can efficiently remove large particles of pollutants, protect the core filtration system and reduce maintenance costs.
Liquid Filter Bags Bag Mouth Type
Different bag opening configurations determine how the liquid filter bags fits into the equipment and can directly affect installation efficiency and sealing stability. Choosing the right type of bag opening can make your filtration system run smoother, reduce the risk of leakage, and lower replacement and maintenance costs. You can choose the most suitable connection method according to the existing filter structure and working condition requirements.
Snap Ring Liquid Filter BagsSnap ring filter bag adopts standard plastic snap ring “V” ring design, quick and easy installation, stable sealing performance, can effectively reduce bypass leakage, suitable for most standard liquid filter systems.
Steel Ring Liquid Filter BagsSteel ring filter bag adopts high-strength metal support ring structure, with excellent structural stability and sealing reliability, suitable for high flow rate and more severe industrial filtration conditions.
Sewn-in Liquid Filter BagsSewn-in filter bags are manufactured by industrial-grade sewing technology, with simple and reliable structure and economical cost, suitable for routine industrial liquid filtration applications.
Flanged Filter BagsFlange port filter bag adopts standard flange sealing structure design, which can realize close fit with equipment, with excellent sealing performance, suitable for demanding industrial filtration system.
Drawstring Liquid Filter BagsDrawstring filter bags adopt flexible tightening design, which can realize quick installation and removal, convenient operation, suitable for filtration systems requiring frequent replacement of filter bags.
Liquid Filter Bags Features
Our liquid filter bags are designed for industrial filtration applications and are widely used in the water treatment, chemical, food and beverage, and pharmaceutical industries with high efficiency and economy.
Meet the needs from coarse filtration to fine filtration
Ensure clean and pollution-free filtration process
Increased filtration efficiency and reduced energy consumption
Suitable for high temperature working conditions
Suitable for spraying, electronics and other demanding industries
Cost-effective removal of non-deformable particles
Supports steel or plastic snap ring construction
Meets U.S. 21 CFR 177.1520 regulations
Core Manufacturing Process of Liquid Filter Bags
Our liquid filter bags are heat fusion welded to avoid bypass leakage and contamination risks associated with traditional sewn structures, making the overall seal more stable and reliable.
Depending on the application, you can choose PP or PE filter material, which is molded by precision needle punching or monofilament weaving process to make the filtration precision more consistent and improve the overall mechanical strength. Under high flow rate or high differential pressure conditions, it can still maintain stable performance and reduce the risk of unplanned downtime.
Liquid Filter Bag Quality Standards and Certification System
We strictly implement quality control standards at every stage of production to ensure the traceability and consistency of liquid filter bags from raw materials to finished products.
Some of our products can meet the needs of food-grade applications, and we can provide FDA compliance support to help you easily cope with the requirements of food, pharmaceutical and industrial standards. Each batch of products undergoes rigorous testing before leaving the factory to ensure that every product you receive has consistent performance and long-term reliability.
About FiltEdge Liquid Filter Bag Suppliers
When you choose FiltEdge, you’re not working with a new brand, you’re working with a supply system that has over 20 years of experience in the filtration industry.
The brand is registered in the United States, but what you’re really dealing with is our long-running factory and production capacity in China. The liquid filter bags factory alone covers an area of more than 1,000 square meters, covering production, testing and customization, ensuring that you get stable and consistent product performance from order to order.
If you’re sourcing liquid filter bags, you’ll find it’s just one of our five product lines. Our long history of serving multi-industry applications has given us a better understanding of what you’re looking for in a real-world application – not just in terms of parameters, but in terms of long-term stability and batch consistency.
In terms of global market, you can rest assured that we have exported our liquid filter bags to more than 100 countries and participated in more than 30 international industry exhibitions. This experience makes us more familiar with the purchasing standards and application requirements of different regions, and makes the process of working with you smoother.
Applications for Liquid Filter Bags
Liquid filter bags are suitable for most industrial liquid filtration scenarios, such as coatings, chemical liquids, wastewater treatment, electroplating and cutting fluids. In practice, you can choose different filtration accuracy and material according to the working conditions, to remove particles and impurities, protect the operation of the equipment, and make the liquid more stable. For systems with higher flow rates or impurities, filter bags are usually more durable and easier to maintain.
During paint production and application, you need to control particulate contaminants that can cause uneven application or surface defects. Our Liquid filter bags utilize heat fused welded construction to effectively avoid the risk of contamination from leaking seams while maintaining consistent filtration accuracy. PP/PE filter media maintains good throughput in high viscosity coating environments, helping you to minimize clogging problems and improve consistency in finished coating quality.
In industrial wastewater pretreatment or recycling systems, you often have to deal with high solids content and complex impurities. Our liquid filter bags are constructed with high-strength filter media to maintain consistent filtration efficiency under high flow conditions. The heat-fused sealing design reduces the risk of bypass, helping you to reduce the load on your back-end equipment and improve the operational stability and maintenance cycles of your overall treatment system.
During the electroplating process, the purity of the liquid directly affects the uniformity and adhesion of the plating layer. Our liquid filtration bag adopts silicone oil-free treatment process and precision welded structure to avoid any secondary source of contamination into the system. Stable filtration accuracy can help you effectively remove metal particles and impurities, thus improving the plating surface quality and process consistency and reducing the defective rate.
Liquid Filter Bags vs. Filter Cartridges
Liquid filter bags are suitable for high flow rates and high impurities with lower operating costs, while filter cartridges are suitable for high-precision filtration needs. Depending on the conditions, a more stable and efficient filtration performance can be achieved. In most industrial systems, the two are often used in combination to achieve more stable filtration and more controllable operating costs.
If your system is characterized by high flow rates and high dirt-holding capacity, liquid filter bags are often the more straightforward and economical choice. With their open structure and low flow resistance, they are less likely to clog quickly when handling liquids with high impurity content and are suitable for pre-filtration or large particle interception.
In applications such as coatings, chemical fluids and industrial wastewater, you can reduce overall operating costs by using filter bags, while minimizing replacement frequency and downtime.
When your application requires greater filtration accuracy and stability, standard filter cartridges are more advantageous. Their precision construction allows for effective interception of finer particles and is suitable for end-of-pipe filtration or critical process stages.
In areas such as food and beverage, pharmaceuticals and fine chemicals, cartridges can help you ensure product purity and consistency, but often multiple cartridges need to be connected in parallel to meet system flow requirements.
Liquid Filter Bags Specification
- Liquid Filter Bags Specification
| Item
| Specification
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| Size
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| Filtration accuracy |
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| Filter media type | PP (general-purpose acid and alkali resistant), PE (high strength and temperature resistant), Nylon (reusable) | ||
| Operating temperature | PP ≤80°C / PE ≤120°C / Nylon ≤150°C | ||
| Working Pressure
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| Flow range
| #1: 10-20 m³/h; #2: 20-40 m³/h; up to 100+ m³/h for multi-bag system | ||
| Sealing method
| Plastic ring / Metal ring / Stainless steel ring / Flange customization | ||
| Structural process |
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| Optional treatments |
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| Typical applications | Coatings, wastewater treatment, plating solutions, cutting fluids, chemicals, food pre-filtration |
Testimonials
We have been using FiltEdge’s liquid filter bags for chemical liquid filtration. The quality of the product is consistent and the heat fusion welded construction has really minimized the leakage problems that were common before. The overall communication and delivery has been smooth and suitable for a long term relationship.
James Carter - USAChemical IndustryThe Liquid Filter Bags have performed consistently in our paint filtration process and we are particularly pleased with the consistency of the filtration accuracy. The durability is also good for use in a continuous production environment, helping to minimize downtime and replacement frequency.
Michael Schneider - GermanyPaints and Industrial CoatingsWe replaced our FiltEdge Liquid Filter Bags in our wastewater treatment system and have seen good results with high solids liquids, longer service life than our previous product, and overall more manageable operating costs.
David Thompson - CanadaWastewater Industry
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Disclaimer
This information is intended for informational purposes only. FILTEDGE reserves the right to update or modify this information without notice.
In actual use, temperature, pressure, flow, differential pressure, chemical compatibility and other operating conditions may have an impact on product performance, the specific performance should be based on the actual application environment.
There is usually no set interval for replacing liquid filter bags, it depends more on the actual operating conditions. Generally speaking, when the differential pressure (ΔP) of the system gradually increases, or you notice that the flow rate starts to decrease, it means that the filter bag is approaching the end of its service life and needs to be replaced.
In higher solids or finer filtration conditions, bags may need to be replaced more frequently; in cleaner liquids or coarse filtration applications, they will last longer, sometimes for days or even weeks.
The filtration accuracy of liquid filter bags usually ranges from 0.5-1000 microns. 50-200 μm is suitable for coarse filtration and pretreatment, 5-25 μm is suitable for general industrial filtration, and 1-5 μm is suitable for more demanding liquid purification. 1-5μm is suitable for more demanding liquid purification.) Specific selection needs to be combined with the type of liquid, solid content and working pressure.
Most of the industrial filter bags are for one-time use to ensure filtration efficiency and avoid cross-contamination. Nylon filter bags can be cleaned and reused under some low contamination conditions, but it usually depends on the specific application environment.
Yes, we support customized liquid filter bags, including size, filtration accuracy, filter material (PP/PE/Nylon) and seal structure (plastic ring / metal ring / stainless steel ring). The design can be matched to different industrial filtration systems.
