Classification and application of primary filters

Primary paper frame filter applications.
The application is particularly wide, very often used in program-controlled exchange and computer room special constant temperature and humidity air conditioning and for central fresh air units and ventilation systems. It is used for the pre-filtration of air compressors, clean room return air filtration, pre-filtration of high-efficiency filtration devices, etc.

Principle
The filter material is folded into a high-strength cardboard and the windward area is increased so that the dust particles in the inflowing air are blocked by the filter material between the fold and the fold. The clean air flows out evenly from the other side. The airflow through the filter is therefore smooth and even. Depending on the filter media. The particle size of the filter media varies from 0.5um to 5um. The filtration efficiency also varies.

Primary aluminum frame filter applications.
Primary coarse air filters are generally used for pre-filtration in central air conditioning and centralized ventilation systems, pre-filtration of gas turbines, and air compressors.

Structure
The structure of the primary air filter is generally divided into a keel frame and a frame skeleton. The keel frame is characterized by its sturdiness and even distribution of the filter material but is time-consuming and labor-intensive to produce. The frame is characterized by easy replacement of the filter media and is less time-consuming to produce, but is slightly less strong than the keel frame.

Filter media
Activated carbon filters are made of washable non-woven fabric, activated carbon, synthetic fiber, chemical fiber (imported), glass fiber (imported), and nylon mesh. Very commonly used are non-woven, glass fiber. Efficient up to coarse or medium efficiency.