A filter mesh is a very common filtering tool, mainly used for separation or purification. Do you know about filter meshes? This article will take you into the world of filter meshes, understanding what they are, their materials, applications in different fields, and what mesh size means.
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A filter mesh, also known as a sieve mesh, is a mesh material with different mesh sizes used to physically separate and remove solid particles or impurities suspended in liquids or gases. Filter meshes can be divided into textile fiber filter meshes and metal filter meshes. Machines equipped with filter meshes are called filters, used for filtering liquids, solids, gases, etc.
Textile fiber filter mesh is typically made of natural fibers, synthetic fibers, or a combination of both materials.
Natural fibers: cotton, silk, wool, etc.
Synthetic fibers: PET, nylon, polypropylene (PP), polyurethane (PU), etc.
non-woven filter mesh, woven filter mesh, needle-punched filter mesh
Efficient filtration: capable of effectively removing particles or impurities of various sizes
Good flexibility: easy to process and install, suitable for various complex shapes and structures of filtration equipment
Chemical corrosion resistance: especially suitable for use in acidic and alkaline environments due to the characteristics of synthetic fiber materials
Lightweight: easy to transport and handle
Metal filter mesh is a mesh-like filtering material made of metal wire or metal sheet.
Stainless steel: due to its corrosion resistance and mechanical strength, it is one of the most commonly used materials, with common grades such as 304/316/316L
Nickel: with good acid and alkali resistance and high temperature oxidation resistance
Copper: with good conductivity and thermal conductivity, usually used for more specific filtering requirements
Aluminum: lightweight with good corrosion resistance, commonly used in lightweight filtration equipment
Titanium: with extremely strong corrosion resistance, commonly used in harsh chemical and marine environments
1. Woven mesh: plain weave, twill weave
2. Perforated mesh
TMN’s customized metal perforated mesh, with over 10 years of industry experience, have provided efficient and economical processing services for businesses in many countries.
3. Sintered mesh (referring to a porous filtering material made by high-temperature sintering of metal powder)
4. Welded mesh
Strong durability: with high strength and long lifespan, capable of withstanding high temperature and pressure environments
Easy to clean: easy to clean and maintain, can be reused
Chemical stability: excellent corrosion resistance, suitable for various chemical environments
Precise filtration: can precisely control the aperture according to requirements to achieve efficient filtration.
Petroleum and Chemicals: Used to filter impurities in liquids and gases, protecting pipelines and equipment, commonly using metal mesh and fiber mesh.
Pharmaceuticals and Food and Beverage: Used to purify liquids and gases, ensuring the purity and safety of drugs or beverages, commonly using stainless steel mesh and fiber mesh.
Mining: Used for screening and grading ores or coal, commonly using high-strength metal woven mesh and perforated mesh.
Drinking Water Treatment: Used to filter suspended solids, particles, and microorganisms in water, commonly using sand filters, activated carbon filters, and fiber mesh.
Wastewater Treatment: Used to filter solid impurities and suspended particles in wastewater, commonly using non-woven fabric mesh and metal mesh.
Pool Purification: Used to remove suspended solids and microorganisms, maintaining pool water cleanliness, commonly using textile fiber mesh and sand filters.
Home Air Purifiers: Used to remove dust, pollen, pet hair, and other particles from the air, commonly using HEPA filters and activated carbon filters.
Industrial Ventilation Systems: Used to filter dust and smoke in factory air, commonly using metal mesh and fiber mesh.
Car Air Conditioning Systems: Used to filter pollutants in indoor and outdoor air, commonly using fiber mesh.
Irrigation Systems: Used to filter particles and impurities in irrigation water, protecting nozzles and pipelines, commonly using plastic mesh and metal mesh.
Greenhouse Pest Control: Used to prevent pests from entering greenhouses, protecting crop health, commonly using fiber mesh and plastic mesh.
Electronic Device Cooling: Used to filter dust in the air, protecting cooling fans and internal components, commonly using fiber mesh.
Dust Prevention for Precision Instruments: Used for cleaning and stabilizing internal instruments, commonly using high-efficiency fiber mesh.
Building Materials: Used for screening sand, gravel, and other building materials, commonly using metal woven mesh and perforated mesh.
Protective Nets: Used for safety protection of mechanical equipment, commonly using metal mesh.
Civil Engineering: Used for filtering and reinforcing civil engineering, commonly using non-woven fabric mesh.
Medical Air Filters: Used to filter pathogens and particles in the air, commonly using HEPA filters.
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Liquid Filtration: Used for filtering liquid medicines, biological preparations, blood, etc., commonly using high-efficiency fiber mesh.
Operating Room Protection: Used to maintain a sterile environment in the operating room, commonly using high-level air filters.
Kitchen Range Hoods: Used to remove cooking fumes generated during the cooking process, commonly using metal mesh.
Faucets: Used to filter particles in tap water, commonly using plastic mesh and fiber mesh.
Air Conditioner Filters: Used to filter dust, impurities, and insects in the air, commonly using fiber mesh and metal mesh.
The applications of filter mesh in different fields vary with different materials and structural changes, providing different functions. The above introduction covers filter mesh applications from eight aspects, but in reality, the applications of filter mesh are far more extensive than those mentioned above. When there is a need for filtration, we will also choose efficient and reliable filtration solutions based on specific requirements and environmental characteristics.
Mesh count refers to the number of mesh holes per square inch in a filter screen. For example, 100 mesh means there are 100 mesh holes per square inch. It’s an important measure of the size of the mesh holes. The higher the mesh count, the finer the mesh holes, resulting in higher filtration accuracy. Choosing the appropriate mesh count can effectively improve work efficiency and product quality.
Usually, there’s an inverse relationship between mesh count and aperture. When the mesh count is higher, the aperture will be smaller. However, this isn’t absolute. Typically, before making a filter screen, designers will draw blueprints according to actual needs, providing corresponding aperture sizes for different mesh counts. The approximate relationship between common mesh counts and apertures is as follows (unit: μm):
– 10 mesh: about μm
– 20 mesh: about 840μm
– 40 mesh: about 400μm
– 60 mesh: about 250μm
– 100 mesh: about 150μm
– 200 mesh: about 75μm
– 400 mesh: about 37μm
Related reading:
Stainless steel filter mesh: manufacturing process and types
Wire mesh filters are a network of metallic wires that forms a pliable filter cloth with precise, rigid pore openings that engineers can customize to accommodate most filter systems. Additionally, because metal mesh filters are one of the most durable filter media available, they can be used in applications, such as sanitary pipe systems, to remove contaminants or in applications, such as nutsche filters, to extract a filter cake.
If you are interested in learning how woven wire mesh compares to other filtration solutions, you may find value in the following articles:
There are many benefits associated with wire mesh filters. This includes the filter's accuracy, flow rate, durability, and ability to be cleaned.
Let's look into how wire mesh can deliver the listed benefits.
One of the most significant advantages wire mesh has over most filter media used today is its ability to deliver an adequate flow rate. This is achievable as the wire diameter and mesh opening can be customized to perfectly match the contaminants you are filtering out, providing you with an enhanced level of filtration surface area.
This is especially true when a three-dimensional metal mesh filter is used. This is because three-dimensional mesh filters offset two layers of filter cloth, doubling the achievable flow rate.
While alloys such as Alloy 310, Inconel 600, Super duplex, Duplex, Hastelloy C22, and Titanium can be used to construct wire mesh filters, 300 series stainless steel is predominantly used. This helps create a filter that can withstand a wide range of impurities, pressure variations, and extreme temperatures without hindering the filter's accuracy.
In addition, stainless steel is a very pliable material, allowing the filter to be formed to fit your filter system and hold its shape after several uses.
The weaving process used to construct wire mesh filters is heavily monitored from start to finish. As a result, the pore openings of the filter are exact and uniform throughout the filter.
These precise pore opinings ensure that the end product, whether a filtered substance or a filter cake, is consistent and complies with industry standards.
As wire mesh features accurate pore openings, blinding and plugging are significantly reduced. This, combined with the enhanced flow rate, means system operators can clean the metal filter mesh easily.
These two properties allow the wire mesh filter to be backflushed and purged of any unwanted debris with minimal pressure.
The most notable limitation associated with wire mesh filters is the limitation as to how much wire mesh can be drawn when being formed into a filter. In fact, there is a ratio that must be followed to ensure the mesh is not drawn deeper than its diameter, damaging the mesh.
So, for example, a direct fuel injection automotive filter with a 5-inch diameter can only have a depth of five inches or less.
It's also important to know that a wide variety of wire mesh weave patterns can't be woven past 5 microns. This can be problematic when working with various gases, as gaseous particles can typically pass through 5-micron screens.
From extruder screen packs to sanitary pipe sock screen gaskets, the price of a wire mesh filter is dependent on the parameters of the filter. This includes the layer configuration, mesh specifications, and amount of fabrication needed to form the desired size and shape of the filter.
Additionally, the quantity of filters being acquired plays a major role in the overall price of a wire mesh filter. This is because most wire mesh filters are made to order, which requires several hours to set up the tooling needed to construct any particular filter.
A good rule of thumb to follow when designing wire mesh filters is higher purchase volumes reduce the overall cost.
Read the following article to learn more about the factors surrounding the cost of a wire mesh filter:
Wire mesh filters are a network of metallic wires interlocked together to form precise pore openings that can be used to decontaminate a substance or extract a filter cake. The cleanability, accuracy, flow rate, and durability that wire mesh offers make it stand out when compared to other filter media, such as metal fiber felt and wedge wire.
As you continue to pursue wire mesh filters, it's essential that you understand the two forms wire mesh is available in: square mesh and filter cloth. Knowing the differences between the two mesh variants will help to ensure you achieve efficient filtration.
With over 150 years of wire mesh experience, W.S. Tyler strives to ensure you understand everything you need to know about mesh filters.
Review the following article to gain insight into how square mesh and filter cloth differ:
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