Innovative and Advanced Design of Bag Filter Housing
Each bag filter housing produced by Filson is under ISO 9001, CE certification, resulting in reliable quality and numerous regular customers year by year. Plus, benefits from our complete production system and year-round cooperation with several logistic companies, you can rest assured about delivery time.
Filson is one of the best industrial filter bag manufacturers in China to provide a one-stop solution for your filtration system. Filson filter bags can be available in PP, PE, PA, NY, or other materials with a wide filtration rating range from 0.5 to 1000μm.
What is Bag Filter Housing
Filson bag filter housing, also named bag filter vessel, is ideally applicable for food and beverage, and fine chemicals to petrochemical industries. With our expert and innovative design, it can be used with whether single-bag filter or multi-bag filter system.
It mainly consists of three parts: bag filter vessel, disposable or cleanable filter bags, and internal support cage. The internal support ensures filter bags do not burst as high differential pressures build up during operation.
Filson offers bag filter vessels made of quality SS 304/316L, CS, PVC, Polypropylene, or other desired materials. They are capable of helping you perfectly meet your need for liquid filtration for efficiency, safety, convenience, and value.
Main Classifications of Filson Bag Filter Housings
Filson offers a variety of materials and designs for bag filter housings. You can also request a customized option tailored to your needs.
Filson stainless steel bag filter housing is totally manufactured in SS 304/316L material to achieve good performance in chemical or high-temperature conditions. And adjustable-height legs can be offered for ease of use.
Filson multi-bag filter housing perfectly suits high-flow bag filters and is commonly made of 304/316 series stainless steel or carbon steel material. Davit arm design is available for opening the cover easily.
Filson excels in designing and fabricating duplex bag filter housings according to your requirements. It is particularly suitable for applications that need one unit in normal operation while repairing the other.
Filson single bag filter housing is compatible with an individual filter bag with several sizes, to meet various applications from food and beverage to bio-pharmaceutical industries. We can offer not only one unit single bag filter housing but multiple units combination.
Filson #2 bag filter housing independently cooperates with an 8”×30” filter bag, achieving effective and reliable filtration. Commonly designed to 2-inch NPT/flange inlet/outlet connections, adjustable mounting legs are available.
Filson plastic bag filter housing is available in PVC, PP, PVDF, and PE materials, and features lightweight, chemical stability, and good rust resistance. You can use it for lower-pressure rainwater and surface water applications.
Filson sanitary bag filter housing performs very well in high purity filtration cooperated with sizes of filter bags, and is usually finished by electropolishing to obtain a smooth surface. All materials and manufacturing processes exceed industry standards for sterile filtration.
Filson replacement bag filter housing can be designed with strict complete cross-reference to perfectly suit your original bag filter system. We have rich experience in manufacturing the equivalent replacement of Pentair bag filter housing, and Fsi bag filter housing.
Features of Filson Bag Filter Housing
- Material: carbon, SS304, SS316, SS316L
- Swing bolt closure allows for a quick bag change-out
- Work pressure up to 1.5 Mpa with 250°F
- Surface treatment: mirror polishing
- Filtration precision: 0.5um-200um
- Configurations: side-in/side-out and side-in/bottom-out
- Housing volume is optimized to minimize product loss.
- High-temperature & High-pressure designs are available.
- Quick access bag replacement
- High flow rates with low-pressure drop
- Positive O-ring sealing offers easy and safe operation.
- Optional 134 epoxy coating for seawater/corrosive applications
- Special requests: duplex type, adjustable-height legs, mounted on pedestal…
Bag Filter vs Cartridge Filter
- Compared to cartridge filter housing or other industrial water filters, Filson bag filter housings require low investment, and guarantee a longer lifetime – the filter bags can be used repeatedly.
- Both are sediment filters, no matter in performance- ease of use, or cost, Filson stainless steel bag filters have demonstrable advantages. Filson bag filter function is equivalent to 5-10 times of filter element of the same function, it can greatly reduce the cost.
- As a bag filter vessels manufacturer, Filson bag filter housings are the best choice for just about any filter application where string wound or poly-spun cartridges have been used in the
Filson: Your Preferred Bag Filter Housing Manufacturer with Competitive Price
Filson bag filter housing provides excellent sealing capabilities that meet the demands of most filtration applications. Our carbon vessels and stainless steel bag filter housing have few weld points to ensure a smooth and easy-to-clean interior surface
It can be designed to concave cover with V-clamp closure, evacuation cover with swing eye-bolt closures, or quick-lock opening mechanism, to allow safe and simple filter bag change-out.
With Filson’s more than 15 years of experience in the bag filter housing industry, we can help you remain competitive by being your OEM partner for the bag filter vessels.
If you require a cost-effective and user-friendly bag filter housing, please target Filson at:
Call: 86-157 3695 8886
Email: sales@filsonfilters.com
How To Choose A Proper Bag Filter Vessel For Your Liquid?
Whenever you’re buying a bag filter, there are some things you should consider. It is only through this that you will get everything right.
Let me take you through this critical element:
You may choose a system with only a single or two housings.
They will perform the same purpose. However, in situations where you want continuous and uninterrupted flow, duplex bag filter housing is the best.
Even during filter element changeover, you don’t have to stop the entire system. Therefore, you don’t have to worry about possible downtime.
The cover should be easy to open and close with minimal time taken.
There is no need to use other tools during the opening, but instead, provide a clamp and spring for easy opening and closing.
Still, ensure the cover has the right safety measures. That is one that prevents the cover from opening by itself.
So, you must scrutinize the design of the cover.
The housing design should be compact since you will use a lot of equipment at ago.
It should have a good working space to facilitate easy removal, cleaning, and maintenance of the bags.
The design should be one that does not require ladders or climbing platforms. These can be safety hazards.
A low profile provides easy access, and balanced spring lids can be opened with one hand.
Deciding to buy the best bag filter may be challenging, but can depend on the flow rate required.
A multi-bag filtration system, for example, comes with some advantages which may include higher flow rates with less downtime during bag changeover.
Having filter bags of a big micron rating allows the removal of particulates of any nature. This gives high efficiency during operation.
It is, therefore, necessary to choose the bag filters with a micron rating between 0.5μm and 200μm
Working temperature and pressure are important parameters you should consider when buying a bag filter housing.
Operating bag filter systems beyond a specific threshold can be catastrophic. It will damage the filter system.
For example, most multi-bag filter housing can work at a pressure of up to 1.5 Mpa and a temperature of up to 250 degrees Farads.
You must choose the correct size of filter bags that can fit in the housing. You should consider both the width and length.
Apart from all these, you must buy the bag filter housing from a reputable manufacturer. This way, you will get bag filter housing that guarantees “zero leakage” and exemplary performance.
Application of Filson Bag Filter Housing
Food and beverage industry
Municipal & Industrial water treatment
Petrochemical industry
Oil and gas industry
Paints, inks, resins and coatings
Textile, printing, paper making industry
Edible oils and soap industry
Pharmaceutical industry
Electronic and electroplating industry
Machining industry
Other liquid filtration
Main Working Principle of Bag Filtration
According to flow rate, you may use Filson single-bag filter housing or multi-bag filter housing.
First, unfiltered fluid enters into Filson bag filter housing from the inlet, which may be placed on the side or on the top, and then flow into the filter bag. Due to the impact pressure of fluid, the bag will extend and the liquid get evenly filtered through filter bags.
The filtered fluid then exits through the outlet of the industrial bag filter housing. Solids are collected inside a filter bag for easy removal and the filtration process is complete.
When you replace or clean the bag, just simply loosen the bolt, rotary hand wheel lift the lid, and get the bag.
- Position Filson bag filter housing into the proper location, and secure the support legs to the floor or platform.
- Connect Filson bag filter housing to the system. The inlet service line should be connected to the SS bag filter housing inlet flange (outlet service line to the outlet flange).
- Remove the cover by loosening the eye bolts sufficiently to allow them to swing free. Turn the handwheel on the top of Filson bag filter vessel to lift the cover clear of the basket retainer plate. Swing the cover away from the bag filter housing to gain access to filter bags.
- Now ready to install Filson filter bags in the filter supporting basket. Be sure the filter bag is installed fully extended to the bottom of the basket.
- Check the working condition of the O shape sealing ring (replace as necessary), then tighten the ring bolt of Filson stainless steel bag filter cover to ensure a leakproof seal between the cover and housing body.
Your Filson Bag Filter Unit is now ready for operation!
After the pump is started, the pressure gauge will slightly rise, initial pressure will be around 0.05Mpa, as the working time increases, the impurities inside Filson single& multi-bag filter housing will increase gradually, when the pressure reaches 0.4Mpa, Filson stainless steel bag filter housings must be stopped working and operator should open bag filter vessel cover to check the residue in the bags.
To safely remove Filson liquid filter bags, shake the basket rapidly and then use a spine motion to separate the filter bag from the support basket, slowly pull filter bags out from the used bag filter housing.
Filson replaceable filter bag could be continually used (generally, washed bag filters could be repeatedly used).
It is appropriate that filter pressure be set at 0.1-0.3Mpa, but it could be adjusted through the return line or return valve on the pump.
Note: High working pressure will damage the filter bag and protection strainer.
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