20 Micron Liquid Filter Bag Supplier | 20 Micron Filter Bag | Macrokun

Macrokun supplies 20 micron liquid filter bags for water treatment, chemicals, coatings, oils, and industrial filtration. PP, PE, polyester, nylon materials, custom sizes, OEM service, and wholesale supply available.

A 20 micron liquid filter bag is a widely used filtration solution for removing fine particles, suspended solids, sediment, and process contaminants from industrial liquids. It offers a practical balance between filtration precision, flow rate, dirt-holding capacity, and replacement cost, making it suitable for many water treatment, chemical, coating, food processing, oil filtration, and general industrial applications.

Compared with coarse filter bags, a 20 micron filter bag provides better particle removal and cleaner liquid output. Compared with finer filtration levels such as 10 micron or 5 micron, it usually allows better flow performance and longer service life in liquids with moderate solid content. For this reason, many factories choose a 20 micron liquid filter bag as a main filtration stage or as a pre-filter before finer cartridge filters, membrane systems, pumps, valves, and spray equipment.

Macrokun is a professional liquid filter bag supplier and manufacturer, offering high-quality 20 micron filter bags in PP, PE, polyester, nylon mesh, and customized filtration materials. With factory-direct production, flexible customization, and stable quality control, Macrokun supports industrial users, distributors, OEM customers, and filtration system manufacturers worldwide.
20 Micron Liquid Filter Bag Supplier | 20 Micron Filter Bag | Macrokun

What Is a 20 Micron Liquid Filter Bag?

A 20 micron liquid filter bag is designed to capture particles around 20 microns and larger from liquid streams. One micron is one thousandth of a millimeter, so 20 microns is a fine enough level to remove many small visible and semi-visible particles while still keeping good liquid flow.

In industrial filtration systems, the 20 micron filter bag is commonly used for medium-fine filtration. It is often selected when the liquid needs to be cleaner than what a 50 micron or 100 micron bag can provide, but the process does not require extremely fine filtration such as 1 micron or 5 micron.

The 20 micron liquid filter bag can be installed in standard single-bag filter housings, multi-bag filter housings, open filtration vessels, and custom filtration systems. Depending on the application, it can be used as the first filtration stage, intermediate filtration stage, or final polishing stage.

Why Choose a 20 Micron Filter Bag?

The main advantage of a 20 micron filter bag is balance. Many industrial liquids contain particles that are too fine for coarse filtration but too heavy for very fine filtration to handle efficiently. In these cases, a 20 micron liquid filter bag can provide stable filtration without causing excessive pressure drop or frequent replacement.

A 20 micron filter bag is often selected because it offers:

Better particle removal than coarse filter bags
Higher flow rate than many finer micron filter bags
Good dirt-holding capacity
Lower operating cost compared with some cartridge filters
Easy installation and replacement
Wide compatibility with standard bag filter housings
Multiple material options for different liquids
Custom size, ring, and construction options

For many users, the 20 micron liquid filter bag is a dependable choice for everyday process filtration where both filtration quality and production efficiency matter.

Main Materials for 20 Micron Liquid Filter Bags

Macrokun manufactures 20 micron liquid filter bags in different materials to match different liquid types, temperatures, chemical conditions, and filtration goals.

20 Micron PP Filter Bag

A 20 micron PP filter bag is made from polypropylene felt or polypropylene filtration media. It is one of the most common options for industrial liquid filtration because it is economical, lightweight, and resistant to many acids, alkalis, and general chemical liquids.

PP filter bags are widely used in water treatment, plating solutions, chemical processing, industrial process water, wastewater treatment, and general-purpose liquid filtration. For customers looking for a cost-effective 20 micron liquid filter bag, polypropylene is often the first recommended material.

20 Micron Polyester Filter Bag

A 20 micron polyester filter bag, also called a 20 micron PE filter bag in many markets, provides good mechanical strength and better temperature resistance than polypropylene in many working conditions. Polyester filter bags are commonly used for paints, coatings, inks, oils, lubricants, resins, and other process liquids.

If the application involves higher temperature, stronger mechanical stress, or certain oil-based liquids, polyester may be more suitable than PP.

20 Micron Nylon Mesh Filter Bag

A 20 micron nylon mesh filter bag is usually used for surface filtration applications where the customer needs washable or reusable filtration media. Nylon mesh provides good strength and a clear mesh structure, making it suitable for selected applications that require particle separation, product recovery, or cleanable filtration.

However, for applications requiring higher dirt-holding capacity, felt materials such as PP or polyester are often preferred because they provide depth filtration.

Customized 20 Micron Filter Bag

Not every filtration system uses standard dimensions. Macrokun can produce customized 20 micron filter bags according to drawings, samples, filter housing models, or special process requirements. Custom options include bag diameter, bag length, top ring type, bottom shape, handle, sealing method, label, packaging, and filter media structure.

Common Applications of 20 Micron Liquid Filter Bag

The 20 micron liquid filter bag is used in many industrial fields where stable particle removal and practical operating cost are required.

Water Treatment and Wastewater Filtration

In water treatment systems, a 20 micron liquid filter bag can remove sediment, rust, sand, scale, suspended solids, and other impurities from process water or wastewater. It is commonly used in industrial water treatment, cooling water circulation, wastewater pre-treatment, and water reuse systems.

A 20 micron filter bag can also protect downstream cartridge filters, pumps, valves, and membrane systems by reducing the particle load before finer filtration stages.

Chemical Processing

Chemical liquids may contain undissolved solids, raw material residues, gel particles, catalyst fines, or process contaminants. A 20 micron liquid filter bag helps remove these impurities and improves process stability.

For chemical applications, material compatibility is very important. PP filter bags are suitable for many acid and alkaline liquids, while polyester, nylon, or other special materials may be used depending on temperature and chemical conditions.

Paints, Coatings, and Ink Filtration

In paints, coatings, and ink production, particles can cause surface defects, nozzle blockage, uneven coating, and poor final appearance. A 20 micron filter bag is often used to remove pigment agglomerates, dust, gel particles, and other impurities before packaging or spraying.

For many coating systems, a 20 micron liquid filter bag provides a good balance between removing unwanted particles and keeping enough flow for production efficiency.

Food and Beverage Processing

In food and beverage production, liquid filter bags are used to remove process residues, suspended solids, and unwanted particles from liquid products or process water. A 20 micron liquid filter bag may be used for edible oils, syrups, beverages, sauces, process water, and other liquid ingredients, depending on the filtration requirement.

For food-related applications, customers should confirm material safety, cleanliness standards, and process compatibility before ordering.

Oil and Lubricant Filtration

Oils, lubricants, hydraulic fluids, and process oils can contain metal particles, dust, sludge, and other fine contaminants. A 20 micron filter bag can help improve oil cleanliness and protect pumps, bearings, valves, and hydraulic components.

For high-viscosity liquids, it is important to confirm flow rate, filter bag size, housing design, and operating pressure before selecting the filter bag.

Electronics and Precision Cleaning

In electronics manufacturing and precision cleaning processes, liquid cleanliness can directly affect product quality. A 20 micron liquid filter bag can be used as a pre-filtration or intermediate filtration stage for cleaning liquids, process fluids, and circulation systems.

For cleaner applications, welded filter bags and low-fiber-shedding materials may be recommended.

Technical Specifications of 20 Micron Filter Bag

Macrokun can supply 20 micron liquid filter bags with a wide range of technical options.

Typical specifications include:

Product name: 20 micron liquid filter bag
Alternative keyword: 20 micron filter bag
Micron rating: 20 micron
Filter media: PP, PE, polyester, nylon mesh, or customized media
Filtration type: depth filtration or surface filtration
Standard sizes: Size #1, Size #2, Size #3, Size #4
Custom sizes: available according to drawings or samples
Top ring options: galvanized steel ring, stainless steel ring, plastic ring, or customized ring
Construction: sewn, welded, or fully welded
Collar type: ring top, flange top, drawstring top, or customized design
Application: water, chemicals, coatings, oils, food liquids, process fluids
Packaging: standard export packaging or OEM packaging

To recommend the right product, Macrokun usually asks customers to provide liquid type, operating temperature, flow rate, solids content, filter housing size, current filter bag model, and expected filtration result.

20 Micron vs 10 Micron Liquid Filter Bag

Many buyers compare 20 micron and 10 micron liquid filter bags. Both are used for fine filtration, but they are not the same.

A 10 micron liquid filter bag captures smaller particles and is suitable for finer filtration or polishing applications. It is often used when the liquid needs higher clarity or when downstream equipment requires stronger protection.

A 20 micron liquid filter bag provides slightly coarser filtration but usually offers better flow performance and longer service life when the liquid contains more suspended solids. It is a good choice when the filtration system needs reliable particle removal without frequent clogging.

In many systems, users install a 20 micron filter bag before a 10 micron filter bag. This staged filtration design helps reduce the load on the finer filter and improves total filtration efficiency.

20 Micron vs 25 Micron Filter Bag

A 20 micron filter bag and a 25 micron filter bag are close in filtration level, but the 20 micron option captures slightly finer particles. If the goal is better liquid clarity or improved downstream protection, 20 micron may be the better choice.

A 25 micron filter bag may be preferred when the liquid has higher solids content or when longer service life and higher flow rate are more important than slightly finer particle removal.

For many industrial users, the difference depends on the process goal. If product quality and cleaner output are the priority, choose a 20 micron liquid filter bag. If solids loading is heavier and the process can accept slightly coarser filtration, a 25 micron filter bag may be more economical.

How to Choose the Right 20 Micron Liquid Filter Bag

Choosing the correct 20 micron liquid filter bag requires more than simply selecting the micron rating. The material, construction, ring type, and bag size all affect filtration performance.

1. Confirm the Liquid Type

The liquid determines the filter media. PP is commonly used for water and many chemical liquids. Polyester is suitable for higher temperature or oil-based applications. Nylon mesh may be selected for washable surface filtration.

2. Check Operating Temperature

Temperature affects filter bag strength and service life. PP is suitable for many low-to-medium temperature applications, while polyester generally handles higher temperatures better.

3. Evaluate Solids Loading

If the liquid contains heavy solids, using only a 20 micron filter bag may lead to faster clogging. In this case, a 50 micron or 100 micron pre-filter can be used before the 20 micron stage.

4. Match the Filter Housing

The filter bag must match the housing size and sealing design. Standard sizes such as #1 and #2 are common, but custom housings may require special bag dimensions.

5. Select the Right Ring Type

The ring or collar affects sealing performance. Plastic rings, galvanized steel rings, stainless steel rings, and customized collars are available depending on the housing and liquid compatibility.

6. Choose Sewn or Welded Construction

Sewn construction is economical and suitable for many general applications. Welded construction provides better sealing and lower fiber release, making it suitable for cleaner or more demanding filtration conditions.

Why Choose Macrokun as Your 20 Micron Filter Bag Supplier?

Macrokun is a reliable manufacturer and supplier of industrial liquid filter bags. We provide standard and customized 20 micron liquid filter bags for global customers in water treatment, chemical processing, coatings, food production, oil filtration, and industrial manufacturing.

Macrokun offers:

Factory-direct supply
PP, PE, polyester, nylon, and customized materials
Standard and custom sizes
20 micron filter bag OEM manufacturing
Sewn and welded construction options
Steel ring, stainless steel ring, and plastic ring options
Bulk and wholesale supply
Private label and custom packaging
Technical support for material and micron selection

For distributors, filtration system manufacturers, and industrial end users, Macrokun can provide stable quality, flexible customization, and competitive pricing.

FAQ About 20 Micron Liquid Filter Bag

What does a 20 micron liquid filter bag remove?

A 20 micron liquid filter bag is designed to remove particles around 20 microns and larger, including sediment, rust, scale, suspended solids, pigment particles, sludge, and process contaminants.

Is a 20 micron filter bag good for water filtration?

Yes. A 20 micron filter bag is commonly used in industrial water treatment, process water filtration, wastewater pre-treatment, and cooling water systems.

Which material is best for a 20 micron filter bag?

PP is suitable for many water and chemical applications. Polyester is often used for higher temperature or oil-based liquids. Nylon mesh may be used when washable or reusable filtration is required.

Is 20 micron finer than 25 micron?

Yes. A 20 micron filter bag captures slightly smaller particles than a 25 micron filter bag. However, the best choice depends on flow rate, solids loading, and filtration target.

Can Macrokun customize 20 micron liquid filter bags?

Yes. Macrokun can customize size, material, ring type, construction method, micron rating, label, and packaging according to customer requirements.

Conclusion

A 20 micron liquid filter bag is a practical and reliable filtration choice for industrial liquid processing. It provides a useful balance between fine particle removal, stable flow rate, dirt-holding capacity, and operating cost. Whether used for water treatment, chemical filtration, coatings, oils, food processing, or general industrial filtration, the 20 micron filter bag can help improve liquid quality and protect downstream equipment.

If you are looking for a dependable 20 micron liquid filter bag supplier, Macrokun can provide factory-direct products, customized specifications, OEM service, and bulk supply support.

Contact Macrokun today to request product specifications, samples, wholesale pricing, or a customized 20 micron filter bag solution for your filtration system.

20 Micron Filter Bag

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