Total Filtration
DUST EXTRACTION
PRODUCT COLLECTION
FLUE GAS FILTRATION CAPACITY & PERFORMANCE ENHANCEMENTS THROUGH RETROFITS
Widest Range, Advanced Technique, Any Application
F. Harley delivers Total Filtration Solutions for Dust Extraction, Flue Gas Filtration, and Product Collection applications. With decades of expertise and continuous innovation, we offer an unmatched range of advanced filtration systems.
Our solutions include reverse pulse jet filter units (stand-alone and insertable), and the widest range of in-house manufactured filter elements—tubular bags, cartridge filters, and cassette filters—ensuring superior quality and customization. Enhanced by Nirafon Acoustic Cleaning (Sonic Horns), our systems provide uniform cleaning and extended filter life.
Backed by experience since 1986 and global technical collaborations, F. Harley delivers reliable, customized solutions for even the most demanding dust and flue gas filtration challenges.
F. Harley & Total Filtration
Experience & Product Range
While most air pollution control system manufacturers  and ourselves offer the conventional filter bags, our Kompulse – Kompak family of Filter Elements sets us apart and enables us to construct Fabric Filters tailored to a wide range of process requirements and applications.
F.Harley’s Fabric Filter range – ADVANTAGES
- Lower Capital Investment
- Reduction in footprint size and headroom size
- Savings in both installation time and space
- Optimum filter media selection for any application / material with suitable air-to-cloth ratios (ACR)
- Choice of filtration techniques – surface and depth
- Better cleaning and system performance
- Meeting / improving emission norms
- Energy efficient operations
- Safety in operations with genuine antistatic filter media
| KEY ATTRIBUTES |
CV BAG FILTERS |
KOMPULSE CASSETTE FILTERS |
KOMPAK FILTERS |
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Temperature |
Ambient to 260°C |
Ambient to 260°C |
Ambient to 140°C |
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Filtration Technique
|
Depth and Surface
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Depth and Surface
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Depth and Surface
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Filtration area per bag / element
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1 – 1.75 sq. mtr
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1.2 – 1.5 sq. mtr
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Single : 7.25 sq. mtr Double : 15.5 sq. mtr
|
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Loading
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Top
|
Top / Side
|
Top
|
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Construction Type
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Stand alone
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Insertable / Stand alone
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Insertable / Stand alone
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Application
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Dust Extraction / Product Collection / Flue Gas Filtration
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Dust Extraction / Product Collection
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Dust Extraction / Product Collection |
Selection of Filtration Technique: Depth or Surface?
While depth filtration has been in vogue since the inception of pulse-jet bag filters through the usage of needlefelt materials, the use of surface filtration with the development of media coatings / constructions since early 2000’s has been a game changer in delivering improved pressure drops and superior emissions. Below is a comparison.
Depth filtration occurs as a result of the formation of a primary dust cake on the surface of the filter bags and an accumulation of dust particles within the depth of the filter media.
Surface filtration occurs with all particulate collected on the surface of the filter media. This filtering method eliminates the need for a primary dust cake.
Filter Bags and Accessories - Our Expertise
Our Expertise – Filter Media
Behind the company and it’s product range lies a wealth of experience in industrial textile technologies, capable of dealing with the most demanding applications in almost every area of filtration for air pollution control.
One of the most important aspects in air filtration is the correct selection of the filter media considering the process flue gas and dust characteristics, as well as the operating parameters affecting the filter media.
At F. Harley, we work closely with users to analyze their filtration requirements to provide customized ‘SOLUTIONS’ by way of selecting the correct filter media with the appropriate surface finish across both nuisance and product collection applications.
As filter media specialists, we are committed to provide effective and cost efficient solutions and not just in giving you the right size filter bags, but taking you through the entire process of selection suitable for your requirement. We believe a lot needs to be understood by our Customers upon filter fabrics than what is understood at present – we promise to elevate the awareness levels at your end for sure !
Filter Bags
The Filter Bag range is based primarily on Needlefelt Filter Media for pulse jet bag filter applications. The range comprises Filter Bags made from entire Needlefelt family i.e. Polyester, Polypropylene, Homopolymer Acrylic, Nomex, Ryton / Procon, P84, and PTFE, across a variety of Fabric Constructions and Finishes, with the option of either the conventional Depth or the advanced Surface filtration technique to choose.
Filter Bags – Quality & Manufacturing
Harley has it’s own complete in-house laboratory for testing quality at every point from fabric stage to finished product stage, wherein all the required test’s are conducted
- air permeability
- fabric conductivity
- breaking strength
- fabric weight
- thickness
While manufacturing the filter bags we take into consideration the time / temperature relationship and gas chemistry. Accordingly, the filter bag are manufactured for optimum pinch (bag-to-cage fit) as tendency for excessive flexing and folding, while undersizing hinders cleaning efficiency and hence bag life.
Antistatic / Conductive Filter Fabrics in Bag Filters…..a grossly ignored area of Safety !
At F. Harley we lay immense stress on this matter as it is very often seen that the subject of Filter Fabrics are not understood even by the very best of engineers in the industry, resulting in the entry of spurious quality of antistatic / conductive filter bags supplied, and accompanied simply by test certificates, without even being aware of the relevant Testing Standards applicable. If you are a user of antistatic / conductive filter bags, our advise would be to contact us and get them tested immediately ! For more information on this ignored subject, click on the attached presentation.
At F. Harley, we would be pleased to elevate your Safety Standards by,
- Ensuring supply of Genuine and Quality Antistatic / Conductive Filter Bags,
- Filter Bag Analysis, and
- Assisting and training your QC Team in the Appreciation and Quality Testing of Antistatic / Conductive Filter Media.
Examples of conductive dusts in different industries:
Power generation:Â Coal dust
Metalworking:Â Aluminum dust, magnesium dust, steel dust, zinc dust
Chemical processing: Carbon black, pigment powders, certain polymer dusts.
Bag Filter Accessories
With the advantage of manufacturing Bag Filters and having designed and commissioned complete systems, we at F. Harley have an intrinsic sense and understanding of each of the components and their specifications, backed by a strict quality control process to ensure exact replacements or with even improvised specifications.
Our Product Range –Bag Filter Accessories
- Bag Cages
- Sequential Timers
- DP Switches
- Magnehelic Differential Pressure Gauge
- Pulse Valves
- Sonic Horns
- Rotary Airlock
Why F. Harley is your best Filtration Solution Provider
- Widest Range of Bag Filters suitable for Air Pollution Control and Product Recovery applications.
- In-house manufacturing of Filter Bags and Cartridges
- Availability of both filtration techniques – Depth Filtration and Surface Filtration for appropriate applications.
- Associations with world class filter media companies.
- Unmatched experience and understanding in the subject of Technical Textiles, with the origins of the Company in the above area.
- Complete in – house BIS approved Testing Laboratory for Industrial Textiles
- Activities backed by complete design & engineering, efficient execution personnel and a committed service and commissioning team.