APPLICATION
Compact cassette filters were first introduced more than a decade ago and followed the development of mini pleat HEPA filters which revolutionized the cleanroom market space due to the increased media area and consequential lower differential pressure.
Increased demand for performance and power output together with the need to reduce energy and fouling as well as wear was the catalyst to develop a better filter solution for gas turbines and axial/reciprocating compressors.
The limitation of pocket filters were well known and documented and test data supported the need for capital investment to design a high-efficiency compact filter with enormous media area to reduce pressure loss and improve filter efficiency – Compact Cassette Filters
Used as secondary filters to protect HEPA filters and as final filters in central air handling units. Compact cassette filters are the product of choice in variable air volume systems such as gas turbines and axial/reciprocating compressors.
FILTER DESIGN
Compact cassette filters are the most efficient and energy-saving secondary or final filters – unrivaled in filter life because of their excellent dust holding capacity.
Assembled into v-banks to provide substantially more media area when compared to pocket filters for instance. The large effective media area provides greater airflow capacity at low operating resistance with a filter depth of a mere 300 or 430mm respectively.
The filter efficiency will be determined by the grade of filter media selected for the application and filtration efficiency values are certified to EN ISO 16890-1:2016. Energy ratings are recorded to EUROVENT 4/21-2014
The media is pleated using PLC controlled media spacing technology for optimum airflow and best media performance.
This proprietary technology ensures low resistance when considering static and dynamic differential pressure.
Intermediate hot melt separators ensure uniform pleat spacing and the ability to form a rigid self-supporting media pack. The media pack is permanently sealed to the filter frame using a solid polyurethane sealant.
This proprietary technology ensures low resistance when considering static and dynamic differential pressure.
Intermediate hot melt separators ensure uniform pleat spacing and the ability to form a rigid self-supporting media pack. The media pack is permanently sealed to the filter frame using a solid polyurethane sealant.
THE FRAME
THE MEDIA
THE GASKET
WORLD CLASS PLEATING TECHNOLOGY
To filter various chemical groups, Filta-Matix offers six different types of carbon filters for use in our ductless fume extraction cabinets:
- HEPA (High Efficiency Particulate Air) Filter: a 99.99% efficient particulate filter for chemical powders and particulates
- Organic Carbon Filter: Activated carbon to chemically adsorb organic vapours
- Acid-Sulphur Carbon Filter: Impregnated carbon to neutralize Acids and Sulphur containing compounds
- Ammonia-Amine Carbon Filter: Impregnated carbon to neutralize ammonia/amine compounds
- Formaldehyde Carbon Filter: Impregnated carbon to neutralize formaldehyde
- Mixed Bed Carbon Filter: 60 % Impregnated carbon to neutralize acids and sulphur-containing compounds (20%), Ammonia and amine compounds (20%), formaldehyde containing compounds (20%) and 40% activated carbon for organics
- Radioisotope Carbon Filter: Impregnated carbon to neutralize radioisotopes
PERFORMANCE DATA
To filter various chemical groups, Filta-Matix offers six different types of carbon filters for use in our ductless fume extraction cabinets:
- HEPA (High Efficiency Particulate Air) Filter: a 99.99% efficient particulate filter for chemical powders and particulates
- Organic Carbon Filter: Activated carbon to chemically adsorb organic vapours
- Acid-Sulphur Carbon Filter: Impregnated carbon to neutralize Acids and Sulphur containing compounds
- Ammonia-Amine Carbon Filter: Impregnated carbon to neutralize ammonia/amine compounds
- Formaldehyde Carbon Filter: Impregnated carbon to neutralize formaldehyde
- Mixed Bed Carbon Filter: 60 % Impregnated carbon to neutralize acids and sulphur containing compounds (20%), Ammonia and amine compounds (20%), formaldehyde containing compounds (20%) and 40% activated carbon for organics
- Radioisotope Carbon Filter: Impregnated carbon to neutralize radioisotopes
If all of the chemicals involved in your application match one of these filter types, it is a good sign that your application will be suitable for use with a ductless fume extraction cabinet; however, there are some chemical exceptions with each filter type. For instance, some organics (such as methanol) are very volatile, lightweight, and are not effectively adsorbed on the organic filter. Whereas some acids (like perchloric acid) present special hazards and should be used in a specialized fume extraction cabinet.
The best way to determine if your chemicals are compatible with the filter types offered is to request a Chemical Assessment from our Chemical Specialists. They will review your application to help you determine if it is suitable, make appropriate equipment and filter recommendations, and to provide you with an application specific solution.
FILTER LIFE
Filter life (and filter replacement times) depend on several factors:
- What chemicals are being used?
- What is the filter capacity for the chemicals
being used? - What is the evaporation rate of each chemical?
- What is the chemical volume that is being used?
- What is the duration of usage per day for each
chemical? - What is the temperature of each chemical?
THE FILTER-MATIX SOLUTION
- Application-specific chemisorption filters
- Sensors to detect filter saturation
- Slanted sash for an ergonomic workspace
- Stainless steel or epoxy resin worktop
- Unique baffle design to limit turbulent airflow
patterns - Hinged or sliding sash for effortless cabinet
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