Air Clear Pre-filter Systems are utilized when tars, stone dust, talc, oils, solid particulate, etc are present in the process exhaust stream. The Pre-filter protects the main filters in the Air Clear Coalescing Fiberbed Filter Mist Collector Systems.
Air Clear Pre-filter Systems have also been used on dirty applications that require an Oxidizer System, such as, RTO, Catalytic, and Thermal Systems. Air-Clear has several Pre-filter systems operating on our oxidizer systems and other air pollution control manufacturer’s oxidizers.
When particulate loading is very high Air Clear offers Three (3) effective Pre-Filtering options:
Indexing Pre-Filter, Stationary Pre-Filters & Pocket Pre-Filters
Indexing Pre-Filter (IPF)
Air Clear’s Indexing Filters are designed for extremely dirty applications. A durable poly filter material is offered to remove grease and tars from the exhaust. As the filter media gets dirty, the pressure drop increases. At a fixed point the drive motor indexes pulling off the dirty media and replacing it with clean media.
Stationary Unit with Permanent Filters
- The filter type and efficiency can be varied to meet the specific requirements. These permanent filters are held and cleaned in place. This system is a cost effective solution when the process is not 24/7/365 operation. Two (2) hours of downtime on a monthly basis should be anticipated. These filters can remove solids in the HEPA range. These filters are utilized in the Air Clear Coalescing Fiberbed Filter Mist Collector Systems and Air-Clear RTO Systems.
- The filter type and efficiency can be varied to meet the specific requirements. Filters are designed for dirty applications. Their relatively low density, thick walls effectively control opacity while increasing their capacity for foulants, extending the main filter life in the Air Clear Coalescing Fiberbed Filter Mist Collector Systems. Low operating velocities reduce pressure drop, further extending service life.
Please call one of our sales engineers to discuss your application in detail and what option would be best suited for your application.