Bag Filter Housings

In modern water treatment and industrial production systems, controlling liquid purity is a vital factor determining product quality. For businesses seeking solutions to remove sediment with large flow rates while maintaining optimal operating costs, bag filter housings (Bag Filter Housing) are the top choice. At Southern Filtration Equipment Technology, we understand that filter equipment must not only be durable but also precisely meet demanding technical specifications of each production line. The article below will provide in-depth analysis of structure, principles, and practical applications of this equipment.

1. What is a bag filter housing?

Bag filter housing (also called Bag Filter Housing) is a specialized industrial device designed to remove sediment, suspended contaminants from liquid streams (water, food, chemicals, solvents). This device's operating mechanism is based on directing flow through a specialized filter bag fixed inside a housing shell made from Inox 304, Inox 316, or UPVC plastic.

With the ability to withstand high pressure, good corrosion resistance, and broad filtration performance range from 0.5 to 2000 micron, bag filter housings are widely applied in almost all industries. The strength of this product line lies in mechanical durability, easy cleaning capability, and quick filter bag replacement process, helping businesses maintain production continuity.

Understanding what bag filter housings are?

2. Detailed structure of bag filter housings

To ensure stable filtration efficiency and safety in high-pressure environments, bag filter housing structure is extremely precisely designed with these main components:

• Housing body (Housing): This is the outer protective shell layer, typically manufactured from high-quality Inox 304, Inox 316 material or UPVC plastic. This material helps housings have absolute corrosion resistance, withstand large pressures, and operate durably in harsh environments.
• Filter bag (Filter Bag): The "heart" of the device where sediment is directly retained. Filter bags have diverse filtration levels from coarse to fine (0.5 micron - 200 micron), suitable for many demanding liquid clarity requirements.
• Filter basket (Filter Basket): An important accessory made from stainless steel, responsible for supporting and maintaining filter bag shape. The basket helps prevent bag from tearing or deforming under strong flow pressure, ensuring system safety.
• Pressure gauges and drain valves: This system helps technicians monitor pressure difference inside the housing (Delta P). When pressure increases, this signals the bag is full of sediment and needs cleaning or replacement.

Detailed structure of bag filter housings

3. Outstanding advantages when using bag filter housings

Why have bag filter housings become indispensable equipment in manufacturing plants? Below are outstanding technical advantages verified through practical experience:

• Large filtration capacity: Housing design allows processing very high liquid/water flow rates, meeting large-scale industrial system requirements that small individual filters cannot handle.
• High mechanical durability: Thanks to stainless steel or high-quality engineering plastic materials, equipment can withstand physical impacts and resist many types of corrosive chemicals.
• Save operating costs: This is an economical problem for businesses. Internal filter bags are inexpensive; some types can be cleaned for reuse. Replacement process is simple, requiring no high-level technical skills.
• Easy operation: Smart open cover design (clamp or swing bolt type) makes maintenance and bag replacement quick, minimizing production line "downtime".

Outstanding advantages of using bag filter housings

4. Common types of bag filter housings currently available

Depending on liquid characteristics to be filtered and system scale, Southern Filtration Equipment Technology classifies this equipment into two main classification criteria:

4.1. Classification by material

• Stainless steel bag filter housings (304/316): The most common line, good heat resistance, high-pressure resistance, suitable for clean water filtration, food, pharmaceuticals.
• Plastic bag filter housings (UPVC): Specialized for extremely high-corrosion environments like seawater, electroplating chemicals, acids, bases where stainless steel may be affected.

4.2. Classification by quantity of bags

• Single-bag housings: Compact, suitable for medium and small flow-rate production lines.
• Multi-bag housings: Can contain 2 to 12 or more bags in one housing. This is a solution for large-capacity factories needing to handle hundreds of cubic meters of liquid hourly.

5. Common technical specifications of bag filter housings

To help customers easily select suitable products, we provide standard technical specification table below. Note that Southern Filtration Equipment Technology can completely custom-fabricate according to specific project requirements.

6. Operating principle of bag filter housings

The operating principle of bag filter housings is based on forced-pressure filtration mechanism. The liquid requiring treatment is pumped into the housing through inlet pipe (Inlet) at the top or side. The flow is directed to enter inside the filter bag.

Here, under pump pressure, the liquid will pass through the filter bag material layer to exit outside. Sediment and contaminants larger than bag pores will be completely retained inside the bag. Clean water (filtrate) after passing through the bag will collect and exit through the outlet pipe (Outlet). This process occurs in a sealed manner, ensuring hygiene and workplace safety.

Operating principle of bag filter housings

7. Applications of bag filter housings

Thanks to flexibility and high efficiency, bag filter housings have become standard equipment in many fields:

• Water treatment industry: Filtration of supply water, industrial wastewater treatment, source water filtration for aquaculture (shrimp, fish).
• Food & beverage industry (F&B): Milk sediment filtration, cooking oil filtration, beer, wine, soft drinks, fish sauce filtration, ensuring food hygiene safety.
• Chemical & industrial: Paint filtration, ink filtration, electroplating chemical filtration, hydraulic oil filtration, organic solvent.

8. Where to buy bag filter housings at good prices?

Where to buy bag filter housings at good prices?

Selecting a reputable bag filter housing supplier is a key factor to ensure long-term system stability. Southern Filtration Equipment Technology is proud to be a professional unit providing comprehensive filtration solutions with highest quality commitments.

We not only provide ready-made products but also consult, design, and custom-fabricate housings according to specific requirements of each business. With our team of technical experts deeply familiar with filtration technology, we commit to delivering products with high workmanship, competitive pricing, and dedicated after-sales service.

If you are seeking optimal filtration solutions for your system, contact Southern Filtration Equipment Technology immediately for detailed consultation and best market quotes.

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Southern Filtration Equipment Technology - Solutions for Filtration Systems

📞 0938.141.584 or 0902710518
✉️ miennamfilter@locmiennam.com
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