Multi-stage filtration systems ensure effective filtration and increased protection of turbines and compressors. Damage due to fouling is kept to a minimum. Unplanned downtimes can be avoided, the general maintenance costs are reduced and optimal turbine efficiency can be achieved.
In a two-stage system, the cassette filter of the final stage is protected by an upstream pocket filter. In three-stage systems, another downstream cassette filter stage is added. This can provide filtration levels up to EPA standard. The selection of filters for each stage depends primarily on the environmental conditions around the plant, as well as on any space limitations.
Standardized systems for intake air filtration are frequently inefficient and do not make full use of the optimization potential. The more specifically filter systems are customized to the respective ambient conditions and plant requirements, the greater performance and reliability they achieve.
Our experts work with you to develop the best filter solution for your plant on the basis of the testing standard ISO 16890. In the filter evaluation, typical urban and rural particle size distributions are considered based on the particulate matter fractions PM1, PM2.5 and PM10, and filter efficiency grades are determined accordingly.
With e.FFECT, the electronic Freudenberg Filter Efficiency Calculation Tool, calculating the optimal filter solution is extremely simple. The local ambient conditions and specific process requirements enter directly into the calculation. Multi-stage filter systems can then be objectively compared. This simplifies the selection of the best filter concept for your needs.
Whether conversion or new construction – implement your individually customized system solution anywhere in the world with the comprehensive engineering development and installation services of Freudenberg. Filter systems achieve maximum performance when they are adapted to the specific requirements. We therefore offer you individual service packages for planning and installation: from on-site analysis, consulting, system design and order processing to training and after-sales service – discover the most efficient solution for your future plant with the help of our team of technicians.
Fine filter certification
The independent institute EUROVENT Certification has developed an international certification program for fine filters of groups M and F that is currently being revised on the basis of ISO 16890. All Viledon fine filters are certified by EUROVENT.
Energy efficiency classes
EUROVENT, the European association of manufacturers in the HVAC industry, has developed a classification system for the energy efficiency of air filters. Freudenberg has contributed significantly to the development of this classification. Your advantages: Energy-efficient filters can be identified at a glance.
Engineered for applications exposed to continuous water spray or fogging and where filter space must be considered, these filters offer excellent coalescing properties and optimal protection against penetrating salt and water.Show details in e-catalog
Offering high operational reliability and cost-efficiency they are ideally suited for intake air prefiltration at coastal, offshore, and other high humidity locations. Here they provide optimum protection of the subsequent filter stages keeping them dry thereby extending the operational lifetime.Show details in e-catalog
Prefilters for fine and micro-filters in industrial processes used for supply, exhaust, and recirculating air filtration. High seperation capacity with low pressure drop, long service life, and excellent cost efficiency.Show details in e-catalog
A new generation of powerful, efficient, economic and resilient cassette filters. With it's deeper filter depth, this series offer high operational reliability and cost optimization, while increasing the efficiency of turbine performance.Show details in e-catalog
The technically stable and engineered design of the MaxiPleat series offers continuous reliable operation for even the most extreme conditions. With a hydrophobic coating, a patented thermal embossing process, and leak-proof casting, these filters provide dependability with cost efficiency.Show details in e-catalog
Viledon MVPGT-21 cassette filters offer an extended filtration surface for an increased lifetime cycle. They are particularly well suited for intake air filtration of gas turbines and compressors, especially for onshore locations.Show details in e-catalog
Pulse-jet filter cartridges GTS, GTS-10 and GTB extend the lifespan of intake air systems with optimal results under all climatic conditions. Static GTG cartridges are best suited for high concentrations of fine dust.Show details in e-catalog