Primary Bag Air Filter

Primary bag air filter, also called pocket air filter,is made of three parts: the filter frame, sewn-in pockets and pocket rings, and it is commonly used in the first or second stage of the filtration system.

Primary bag air filters can be designed in various sizes and also can be produced with various pockets or bags. Because of its special design, it can offer more than five times surface area than flat filter. A multilayered, melt-blown polypropylene medium is used to make the individual pockets. To ensure that the air flow is distributed evenly across the entire filter, pockets are made to inflate and stay apart from one another.


Primary filters are intended to catch floatable particles larger than 5 microns. While it is possible for the primary filter to capture what the pre-filter captures, doing so would significantly decrease the efficiency and efficacy in capturing the tiny airborne particles. This pocket type filter will not be distorted, or twisted when used normally, thereby extending the service life of the product. Every pocket is fully sealed, so it can avoid any dust or air leaks.


Advantages
Longer service life due to low initial pressure drop.
Widely available in a variety of sizes, pocket counts, and pocket materials.
For varied purposes, there are many different and broad filtering efficiencies available.
Simple to use, maintain, and take away.