Filters and Filtration
Commonly referred to as Filter Foams, we have supplied reticulated foams for many years as filters for both fluid and air applications.
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These filters can be supplied as straight-forward rectangles, with either flat or profiled (egg-box) surface finishes. But we have the technology to go further, and cut them into some rather unusual shapes.
For Filtration, the irregular surface of the profile foam, or the CNC-cut shapes are very important because they increase the surface area of the filter making it much more efficient than a plain flat surface.
Fluid Filtration
Tradionally, fluid (wet) filters are polyether-based foam and are made in various colours. It is fairly common practice for 3 or 4 different colours to be used within a range, with each colour donating a different pore size.
The filters can be found in the following applications:
- Pond Filters
- Graduated Filter Packs
- Locomotive Air Intakes
- Paint Application Systems
- Colour Paint Sample Applicators
- Polish Applicators
- Pipeline ‘Pigs’
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Air Filtration
Tradionally, filters that are used solely for air (dry) filtration are made using a polyester-based reticulated foam. These are predominantly black or dark-grey.
- Air Conditioning Systems
- Vacuum Cleaners
- Automotive Air Intakes
Sometimes 2 different grades are laminated together to work as a graduated filter.
Depending on the minimum particle size that needs to be eliminated, these graduated filters can have 3 layers.