Across numerous industrial sectors including chemicals, pharmaceuticals, and food & beverage, a compact filtration device is gaining favor for its exceptional performance—the bag filter housing. It is quietly enhancing production efficiency and product quality.
The ตัวเรือนถุงกรอง is a versatile filtration device featuring an innovative design, compact size, simple and flexible operation, energy efficiency, and sealed operation. Its core principle involves liquid entering through the inlet, passing through a filter bag supported by a metal mesh basket, and exiting through the outlet, while impurities are trapped within the filter bag, achieving solid-liquid separation.
Boasting high filtration precision, large processing capacity, compact design, simple operation, low cost, excellent sealing, and strong adaptability, it has become an indispensable filtration solution in modern industry.
01 Bag Filter Housing Achieve Precision Separation
The bag filter housing effectively intercepts fine particles or suspended solids. Their filtration precision spans a wide range, from 0.5μm to 800μm, covering diverse applications from coarse to fine filtration.
This high-precision capability makes bag filters particularly suitable for scenarios demanding exceptional liquid purity, such as ultrapure water preparation in electronics, pharmaceutical solution filtration, and clarification in food and beverage processing.
Achieving high-precision filtration relies on high-quality filter bags and a meticulously designed housing structure. Filter bags come in diverse materials, including polypropylene, nylon, and stainless steel mesh, allowing selection based on specific filtration requirements.
02 Bag Filters Handle High-Flow Processing Demands
The bag filter housing design enables higher flow rates per unit filtration area, featuring low filtration resistance and high efficiency. A single liquid filter bag provides 5-10 times the filtration capacity of a comparable cartridge filter, significantly boosting processing capability.
Multi-bag filter designs further expand processing capacity. By operating 2-24 filter bags in parallel, flow rates can reach 50–50,000 m³/h, meeting industrial-scale continuous filtration demands.
This high-flow capacity makes bag filters the preferred choice in industries requiring large-volume fluid processing, such as petrochemicals and water treatment.
03 Economic Benefits Choosing a Bag Filter
Bag filters operate at significantly lower costs than alternative filtration methods. Filter bag costs are only 1/3–1/5 of cartridge solutions, while offering greater dirt-holding capacity and reduced replacement frequency.
Reusable filter bags that can be cleaned further reduce long-term operational expenses. Compared to plate-and-frame precision filters or cartridge filters, bag filters offer multiple advantages including lower investment costs, extended service life, and reduced filtration expenses.
Maintenance costs are also minimal. The quick-opening design enables filter bag replacement within 30 seconds, boosting operational efficiency by over 50% and significantly minimizing downtime.
04 Bag Filters Ensure Process Sealing Without Leakage
The sealing system is a critical component of the bag filter housing. The use of O-rings and quick-opening mechanisms ensures leak-free operation, guaranteeing stable filtration quality.
The integral O-ring sealing structure guarantees 100% liquid-tightness, while specialized sealing rings ensure reliable containment. This design accommodates both standard steel-rimmed stitched filter bags and fully welded hot-melt filter bags.
Superior sealing effectively prevents liquid or gas leakage during filtration, avoiding workplace contamination and material waste. This fundamentally safeguards filtration efficiency and quality.
05 Industrial Applications Suit Bag Filters
Bag filter housings boast exceptionally broad applicability, handling acids, alkalis, solvents, oils, high-viscosity liquids, and more across a pH range of 0-14. They cover nearly 80% of industrial solid-liquid separation needs.
Primary applications include: raw material clarification and process water filtration in food & beverage; acid/alkali solution purification and catalyst recovery in chemical/pharmaceutical; pre-treatment of industrial wastewater and seawater desalination in environmental water treatment; and ultra-pure water preparation and plating solution purification in electronics and electroplating.
The adaptability of bag filters also extends to varying temperature and pressure conditions, with typical operating temperatures ranging from 5°C to 120°C. Special designs can withstand higher or lower temperatures.
06 Structural Design of Bag Filters Simplify Operation
The compact and well-proportioned housing design of bag filters features a small footprint, enabling straightforward installation and operation. This design facilitates easy installation even in space-constrained environments.
The quick-opening design stands out as a key feature. Utilizing a spring-assisted weight-balanced structure, the top cover operates with minimal effort—simply push or pull it by hand to open or close, making filter bag cleaning and replacement exceptionally convenient and efficient.
The filter bag replacement process is simple and efficient, taking only minutes to complete without specialized tools, significantly reducing maintenance time and labor costs.
07 Bag Filter Models and Performance Comparison
Different bag filter models offer varying processing capacities and suitability for specific applications. The table below lists common models and their key parameters:
| Model | Filter Bag Count | Filter Area (m²) | Recommended Flow Rate (m³/h) | Inlet/Outlet Diameter |
|---|---|---|---|---|
| LYH219-2 | 1 | 0.46 | 30 | DN50 internal thread |
| LY3P2S (Multi-bag) | 3 | 1.5 | 100 | Φ50 |
| LY6P2S (Multi-bag) | 6 | 3.0 | 270 | 3-6″ |
| LY12P2S (Multi-bag) | 12 | 6.0 | 540 | 6-10″ |
| LY1000-12 | – | 5.52 | 360 | DN200-250 |
Based on actual requirements, ถุงกรอง can be selected in various structural configurations such as single-bag, multi-bag, or dual-unit types. Multi-bag designs offer lower unit filtration costs and greater processing capacity, making them suitable for large-scale filtration needs.
The value of bag filter housings is demonstrated across multiple dimensions: from precision filtration to large-scale processing, from cost control to reliable sealing.
Its exceptionally adaptable nature enables it to meet filtration demands across diverse industries and operating conditions. Whether handling corrosive media in chemical processing or meeting stringent hygiene requirements in food production, bag filters deliver tailored solutions.
Selecting a bag filter represents not merely choosing equipment, but adopting an efficient, economical, and reliable filtration solution that will continue playing a pivotal role in filtration applications across all sectors.
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