This section provides an overview for bag filters as well as their applications and principles. Also, please take a look at the list of 37 bag filter manufacturers and their company rankings. Here are the top-ranked bag filter companies as of November, 2024: 1.Filtration Systems Products, Inc., 2.Hayward Flow Control, 3.GTS Filters & Systems (India) Pvt Ltd.
Table of Contents
Postdoctoral researcher, conducting research on the production of cathode composite particles for solid-state batteries in the Equipment Engineering Group of Osaka Prefecture University.
Belongs to the Resource and Energy Recycling Laboratory, Nagaoka University of Technology, and conducts research on the development of DDR-type zeolite membranes for CO2 separation and the capture of CO2 from digestion gas generated from sewage treatment plants.
https://researchmap.jp/eiji-hayakawa
Thesis
https://doi.org/10.3390/membranes11080623
http://www.ijcea.org/index.php?m=content&c=index&a=show&catid=109&id=1177
https://www.sciencedirect.com/science/article/abs/pii/S1387181119305529?via%3Dihub
https://www.sciencedirect.com/science/article/abs/pii/S138358661833154X?via%3Dihub
A bug filter is a type of dust collection device that uses a woven or non-woven filter cloth to collect very fine particles and dust suspended in gases and purify the gas or gases to be treated.
It is called a bug filter because the filter cloth is made into a cylindrical shape and its bag is suspended at the point where the treated gas flows in.
Although electrostatic precipitators that use electricity are also available, bug filters have the advantage of being inexpensive and easy to install compared to such precipitators.
Bug filters are used at manufacturing and processing sites where soot and smoke containing large amounts of particulate matter and dust that are harmful to the human body and the environment are generated.
Typical examples are the large incinerators installed in steel plants to process waste materials.
Air purification using bug filters is also very important to keep the air clean in confined spaces or sites where a lot of dust is generated, and to control dust explosions and other hazards, thereby ensuring safe operations.
The filter cloth used in bug filters is usually made of materials ranging from cotton to high polymer synthetic resins such as polyester, nylon, polypropylene, acrylic, Teflon, and glass fiber.
Ceramic ones are also used, depending on the temperature of the gas to be processed.
The material of the bug filter is determined based on the operating temperature, the nature of the gas, the properties of the particles, durability, and price.
For example, polyester is inexpensive but susceptible to high temperatures and alkalis. Polyimide is resistant to solvents, but weak against acids and alkalis; PTFE has good heat resistance and chemical resistance, but is very expensive. Glass fiber has excellent heat resistance and chemical resistance, but is expensive and has poor durability.
While bug filters are simple to install, the selection of filter cloth has a direct impact on running costs, because filter cloth replacement is a prerequisite. On the other hand, if the size is the same, it is easy to change the material, and the material can be changed according to the site conditions.
Bug filters clean gas by trapping fine particles and dust in the gas as it passes through the filter cloth.
The bag filter has an extremely high particulate removal rate of approximately 99% and is capable of collecting even very small particles of 0.01 micrometer or less.
Although the collection capacity is very high, after a certain period of use, the pressure drop increases due to the accumulation of fine particles on the surface of the filter cloth, and the collection capacity of the bug filter declines.
Therefore, when the pressure loss reaches a set value, the accumulated particles must be swept off the filter cloth.
There are two main methods for this: the mechanical method and the pulse-jet method, in which compressed air is fed to the filter and the particles are swept off.
In addition, the method of injecting air from the opposite direction of the filtration direction is used to clean the glass fiber bug filters used in cement and steel smelting plants.
Bug filters with large pressure losses need to be cleaned of accumulated particles, and mechanical vibration, reverse pressure, and pulse jets are available.
Mechanical vibration applies vibration to the bug filter, while counter-pressure removes accumulated particulate matter by blowing airflow in the opposite direction from that used for dust collection. The back-pressure method is used to clean glass-fiber bug filters used in cement and steel smelting plants.
However, mechanical vibration and back pressure require the airflow to be cut off when removing the particles, and dust collection must be interrupted. For this reason, the dust collector must be divided into multiple chambers to enable continuous operation.
In contrast, as shown in the figure below, the pulse-jet method, in which only a portion of the bugs are momentarily removed by applying a reverse jet, does not require interruption of dust collection, so continuous operation is possible without using a multi-chamber structure.
The basic structure of a bug filter is simpler than that of other dust collectors, allowing for space-saving installation and easy maintenance. Moreover, by appropriately selecting the material and size of the filter cloth, the fabric filter can demonstrate high dust collection performance in various environments. Because of these features, bug filters are widely used in various fields. However, this advantage is sometimes closely related to the cause of various problems.
The most common trouble is the dropping or breaking of the filter cloth. This is caused by localized concentration of gas containing particles and changes in flow velocity due to load fluctuations that cause the filter cloth to sway and contact adjacent filter cloths or casings. This can be solved by adding a rectifying plate, such as perforated metal, to regulate the gas flow. The number of filter cloths installed may be reduced and the density of the filter cloths may be lowered in areas where contact is possible, but only as a stopgap measure, since this will reduce dust collection efficiency.
The most serious problems are ignition and explosion. In general, most incinerator dust collection systems use bug filters. In incinerator bug filters, the target of dust collection is fine carbon, and because the system is often under negative pressure, outside air may be drawn in through gaps in the casing, creating the conditions for ignition. In addition, if the fine powder stays in the system due to clogging of the filter cloth, etc., the risk of dust explosion increases.
Although simple and easy to install, this equipment is also very sensitive. In order to prevent these problems, it is important to select an appropriate bug filter and perform regular maintenance.
*Including some distributors, etc.
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Hayward Flow Control was founded in 1923 and operates out of Clemmons, North Carolina. Hayward Flow Control is a manufacturer of industrial thermoplpastic valves and process control products. Hayward Flow Control product lines include thermoplapstic valves such as ball valves and butterfly valves, Hayward Filtration & Straining line, Hayward Actuation line including actuators and actuated valves, pressure & flow control valves, corrosion resistant pumps, instrumentation, bulkhead fittings & tank accessories, end connections, and other parts and accessories.
Filtration Systems Products, Inc., founded in 1979, is a manufacturer of distributors of filtration products located in Herrington Ct., Pevely, MO. The company produces dust collection bags, electric fan motor covers, custom-sewn dust collection bags, HVAC filters, and fan covers. It also produces non-woven filter fabrics, string wound cartridges, strainers, and micron-rated bags used in grinding, wire drawing, plating, machining, and plating in metalworking, food, wire drawing, beverage, and automotive industries.
BEA Technologies Spa, established in 2001 and headquartered in Lombardy, Italy, is a manufacturer of filtration systems and filters. The company's products include sterilizing, membrane, and nanofiber filters, organized into microfiltration, compressed air and gas, and process equipment categories. It also offers Beapure animal-free sterilizing membrane filters, magnexflo automatic filtration systems, and green filters to reduce environmental impact. The company's solutions are used in the pharmaceuticals, biotechnology, and food production industries. Its services include feasibility studies, validation support, and training in filter management.
Zhejiang TOP Environmental Technology Co., Ltd., established in 2014 and headquartered in Zhejiang, China, is a manufacturer of industrial environmental protection and explosion-proof equipment. The company offers a wide range of products, including conveyor sieving, powder cleaning, dust free polishing type, floor grinding, and more. It also provides air circulation filtration, vacuum cleaner, and powder bin. Its industrial vacuum cleaner can extract liquids or slurry, which makes cleaning more efficient and productive. The company’s product are certified by ATEX, CE TUV Rhein, and CE DEKRA. It serves various industries such as petrochemical, aerospace, military, 3D printing, and more.
WAM Japan was established in 2005 and, based in Japan, is a manufacturer of power-handling equipment. The company produces products such as screw conveyor feeders, rotary valves, farming and biogas equipment, energy-related equipment, and mechanical conveyor. All its products are used in different applications, including wastewater treatment plants, livestock farming, sewage, renewable energy, and recycling sites. The laboratory has equipment and accessories to perform mixing, feeding, and metering tests with different materials. WAMGROUP’s Corporate R&D department supervises the test facility of the company.
Vibhro Industrial Service and Consultants, established in 2004 and headquartered in Chennai, India, operates as a manufacturer, offering a wide array of industrial equipment, including industrial blowers, paint booths, air coolers, and more. The company's product portfolio features items like the Venturi scrubber system, Vibhro axial fan, evaporative plastic air cooler, circular inline fan, PVC mist eliminator, double-inlet forward-curve impeller, and many more. These products cater to various industries, including commercial, education, healthcare, business, and more.
Aerotech Equipment’s and Projects Pvt. Ltd., founded in 1997 and headquartered in Uttar Pradesh, India, is a manufacturer of air handling and air pollution control equipment. The company's main products include industrial blowers, roof extractors, and air cooling units. It also produces air scrubbers, man coolers, and axial flow fans. These products are used in power plant ventilation systems, powder coating paint booths, and clean rooms. The company has numerous notable clients, including Asian Paints, Unilever, and New Holland Agriculture.
Wolftechnik Filtersysteme GmbH & Co. KG is a manufacturer of filtration equipment for solid-liquid separation founded in 1966 and located in Weil der Stadt, Baden-Württemberg, Germany. The company offers filtration systems in various dimensions and capacities, and pressure vessels with standard or digital measuring functionalities. It also offers a range of filter cartridges such as activated carbon, pleated, and depth-type cartridges. The company’s products are commonly used in chemical processing, water treatment, and food production operations.
Shanghai Livic Filtration System Co. Ltd. is an ISO 9001:2015-certified manufacturer of filtration systems and related products established in 2009 and based in Shanghai, China. The company offers bag and cartridge filters for fine filtration applications, self-cleaning filters for water treatment operations, and automatic filters for standard liquid filtration processes. It also offers Y-strainers and basket strainers for providing protection from particulates. The company’s products are commonly used in food and beverage processing, petrochemical refining, and water treatment operations.
Interscience, established in 1979 and headquartered in France, is a manufacturer of microbiology equipment. The company's products are essential in laboratories to ensure safe food, medical resources, and research. It offers solutions for sample preparation, including blender bags, gravimetric dilutors, and lab blenders. It provides automatic spiral platers, automatic colony counters, and a scan station for bacterial enumeration. The company's products serve the pharmaceutical, cosmetic, and veterinary sectors. It also offers metrological verifications, software updates, and temporary replacement unit services.
Voigt GmbH, founded in 1907 and based in Wernau, Baden-Württemberg, Germany, is a manufacturer specializing in felt and filter technology. The company produces a range of felt products, including technical felt in various quality grades and colored felt for handicraft and decoration purposes. Through its Voigtdesign line, the company offers practical products made of wool felt in diverse sizes and colors. In addition, the company manufactures industrial filters suitable for both dry and liquid filtration applications. These products are utilized across various industries, including chemical, food and beverage, and ventilation sectors.
Kalthoff, founded in 1963 and headquartered in Selm, Germany, is a manufacturer of filter technology. The company provides air filter products and services for residential and commercial areas, as well as mobile systems like railways and aircraft. It also provides products for sensitive environments, such as manufacturing facilities of semiconductors or medications, and cleanrooms. The company's products meet the ISO 16890 and EN 779 standards for air filtration, and also correspond to the directives of VDI 6022.
Electrostar GmbH, a subsidiary of Algo Group, is based in Ebersbach an der Fils, Germany, and has been a manufacturer of vacuum, dust-free, and sanitary products since 1921. The company first introduced warm air hand dryers and has since diversified its portfolio to include the Starmix series of particulate air (HEPA) hand dryers and disinfection dispensers, as well as vacuum cleaners of many industrial options. It also produces patented disc brooms under the Haaga brand and other manual and battery-operated sweepers. The company offers custom sanitary and hospitality products based on customer requirements.
Eurowater, a Grundfos company established in 1936 and headquartered in Denmark, is a manufacturer of water treatment systems. The company specializes in pure water treatment and creates pressure filters, softening units, and reverse osmosis systems. It delivers solutions for various applications, including boiler and process water to drinking water. The company also offers mobile water treatment plants for rent service, catering to temporary requirements across multiple industries. Its solutions cater to diverse sectors, including power plants, food and beverage, and healthcare.
Aswathi Industries Limited, founded in 1997 in India, is a manufacturer and supplier of both equipment and services and provides technology and solutions for medical waste incineration, lead and aluminium melting, cooling chambers, smoke extraction systems, and more. Company products are industrial furnaces such as rotary kilns, walking beam, and box furnaces that provide solutions for acid neutralization, fumigation, desulfurization, drying, and cooling. It exports tailor-made Air Pollution control equipment and Induced and Forced Draft Industrial Fans (ID Fan).
SIEBEC SAS, founded in 1958 and headquartered in Saint Egrève, France, is a manufacturer of filters for the electroplating industry. The company develops solutions for the filtration, purification and recycling challenges. It is composed of three entities that provide plastic filters and consumables in the field of liquid filtration, dosing pumps and electroplating baths filtration. Its range of filters and pumps for corrosive liquids are used in surface finishing, metalwork, effluent recycling and other applications. The company has manufacturing sites in France, Germany and Portugal, with a network of distributors in more than 40 countries.
Amazon Filters Ltd., founded in 1985 and headquartered in Camberley, England, is a manufacturer and supplier of industrial filtration solutions. The company provides a range of pleated, depth, and bag filters for liquids, gases, and air. Its portfolio includes filter cartridges, capsules, and custom-designed filter housing to meet particular requirements. These products are utilized in various industries including food & beverage, chemical, and pharmaceuticals. The company has acquired ISO 9001 and 45001 certifications, and its products are ATEX approved.
KOSA Corp, operates as a manufacturer and supplier of industrial control valves, headquartered in Qingpu District, Shanghai, China. The company specializes in the production, research and development, sales, and services of industrial control valves. Its product offerings include a pneumatic diaphragm control valve, electric regulator valve, electronic control valve, self-operated regulating valve, and ultra-small flow regulating valve. These products are generally used for controlling the flow of liquids or gases. It has received the API6D certification from the American Petroleum Institute for its adherence to quality and safety in the production of its products.
Enfound Enterprise Co., Lt.d is a manufacturer and supplier of water and wastewater treatment products that was established in Tainan City, Taiwan, in 2000. The company produces aerators for injecting air into water to increase dissolved oxygen levels, UV sterilizers for killing microorganisms in water and preventing waterborne diseases, and diffusers for dispersing air bubbles into water to enhance aeration processes. It also offers related accessories such as pumps and filters. The company’s products are used mainly by clients in municipal water treatment, industrial wastewater treatment, and aquaculture operations.
Smd Engineering Equipments & Systems, established in 2010 and based In India, is a producer, manufacturer, and distributor of painting booths, paint shop plants, powder coating plants and pollution control equipment. Products from the firm are utilized in the engineering, automotive, chemical, cement, and public sector industries. The IndiaMART Trust Seal Verified company provides a quality and effective selection of pre-treatment plants. The company works with brands like Air Curtain and Mid Link. The company goods also include powder coating booth hot air ovens, industrial blowers and industrial filters.
Enoch's Industries Pvt. Ltd., established in 2019 and headquartered in Hyderabad, India, is a manufacturer, supplier, and exporter of grain dryers, pollution control equipment, and material handling equipment. The company's subsidiary brand, Enoch's Dryers under Essar Enviro Air Systems, offers seed/grain dryers engineered with cutting-edge technology to ensure efficient grain drying. Its manufacturing facility produces automated grain and seed dryers designed to reduce moisture. Its products cater to agriculture and seeds, chemical, and waste management industries. The company utilizes CNC cutting, bending machines, and welding machines supported by state-of-the-art software like SolidWorks and AutoCAD for precise manufacturing.
Daido Tenki is an ISO 14001-certified manufacturer of piping accessories for production facilities and plants established in Ota-ku, Tokyo, Japan, in 1948. The company’s products include Y-type and T-type standard strainers, self-cleaning strainers for separating debris from filter elements, and filter models for fine filtration of fluids. It also offers hardware pipe accessories such as valves and gaskets, and level gauges for indicating fluid levels in vessels or tanks. The company’s products are mainly used by clients in industrial processing, power generation, and water treatment operations.
Siga UK Limited (Siga Filtration), founded in 2010, is a filter manufacturer headquartered in Farnborough, Hampshire, United Kingdom. The company's lineup includes cartridge and bag filter housings designed in compliance with the pressure equipment directives of the European Union. It also offers other filters, including the bespoke, inline, and sidestream options. The company develops custom filtration systems, incorporating single or multiple filters and optional accessories, such as diaphragm or centrifugal pumps, pressure gauges, and centrifugal separators, to meet specific sanitary requirements. These products are utilized across the food, beverage, chemical, and pharmaceutical industries.
Ewac, established in 1998 and headquartered in České Budějovice, Czech Republic, is a distributor and supplier of chemical products and technological equipment. The company's products include air filtration systems for vapors, liquids, or solid particles; industrial chemicals such as paints, varnishes, and emulsions; and paint shop equipment that includes robot covers, protective pads, and pH indicator strips. Its offering of technological equipment includes waste water treatment plants, EB and EBP containers, and pneumatic presses. Its services include supply chain management and the supply of spare parts.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Filtration Systems Products, Inc. |
14.5%
|
2 | Hayward Flow Control |
10.9%
|
3 | GTS Filters & Systems (India) Pvt Ltd |
5.2%
|
4 | Aswathi Industries Limited |
5.2%
|
5 | The Strainrite Companies |
4.7%
|
6 | Vibhro Industrial Service And Consultants |
4.1%
|
7 | ELECTROSTAR GmbH |
3.6%
|
8 | Siga Filtration. |
3.1%
|
9 | Zhejiang TOP Environmental Technology Co., Ltd |
3.1%
|
10 | WAM Japan |
3.1%
|
Derivation Method
The ranking is calculated based on the click share within the bag filter page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
India | 10 | 45.5% |
United States of America | 3 | 13.6% |
China | 2 | 9.1% |
United Kingdom | 2 | 9.1% |
Italy | 1 | 4.5% |
Japan | 1 | 4.5% |
France | 1 | 4.5% |
Taiwan | 1 | 4.5% |
Czech Republic | 1 | 4.5% |
10 products are listed.
Sanoyas engineering Co., Ltd.
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