Bag Filter

Bag filters are versatile devices widely used in various industries for liquid and gas filtration. They are characterized by their efficiency, durability, and ease of maintenance, making them a preferred choice for numerous applications.

Bag filters operate on the principle of capturing particles and contaminants from a fluid stream by passing it through a porous fabric media. The media, commonly referred to as the Filter bag, is made from materials like polypropylene, polyester, nylon, and fiberglass, each tailored to specific filtration requirements. The choice of media depends on factors such as particle size, fluid chemistry, temperature, and pressure.

In liquid filtration, bag filters are often installed in housing assemblies that support the filter bags and facilitate their removal and replacement. The fluid enters the housing and flows radially or axially through the filter bag, where particles are trapped on the surface or within the media. Clean fluid then exits the housing, achieving the desired filtration level.

Gas filtration applications often involve pleated filter bags, which provide a larger filtration surface area and increased particle capture efficiency. These bags are installed in cartridge-style housings or baghouses, designed to handle large volumes of gas while minimizing pressure drop.

Bag filters are renowned for their high efficiency, capable of removing particles as small as 0.1 microns. They are also known for their long service life, with filter bags lasting anywhere from several months to a year, depending on the application and operating conditions. Additionally, bag filters are easy to maintain, as replacing a worn-out bag is a straightforward process that requires minimal downtime.