Discover our filtration solutions for gas turbines and compressors

Benefit from Freudenberg expertise now

ISO 29461-1

The new classification system to ISO 29461-1
makes filter selection for turbomachinery easier

Learn more


Multi-stage filtration solutions for gas turbines and compressors

Performance-optimized for your individual requirements

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.

Contact us

Discover our selection of tried and tested multi-stage filter systems for your custom-tailored solution for gas turbines and compressors

Custom-tailored multi-stage filter systems Ideal for highest purity at EPA level: 3 stages with pocket filters, MaxiPleat- and eMaxx cassette filters
MaxiPleat modular filter system Ideal for restricted spaces: the MaxiPleat modular filter system as a 2-in-1 solution
hydroMaxx filters for preventing water ingress Ideal for preventing water ingress: hydroMaxx pocket filter firmly plugged on eMaxx cassette filter
Cleanable cartridge sytems with safety filter stage Ideal for cleanable systems with safety filter stage: pulse-jet filter cartridges (conical/cylindrical) with MaxiPleat cassette filter
New GT 36 Ansaldo gas turbine

Why is "Monte Bianco" the peak performer in power generation?
How does filtration come into play?

Learn more

Availability is key in the power industry

Learn more about the strengths of eMaxx cassette filters

Air filters protect gas turbines against fouling

Power output will be influenced by the performance of installed intake air filters and the dust particle concentration at a gas turbine’s location.

Are you aware of the effect of air filtration on gas turbine performance degradation?

Learn more

Freudenberg Filtration Technologies e.FFECT

How efficient is your filtration system?

e.FFECT boosts the power output of your gas turbine or compressor


Ambient conditions vary by plant: from deserts, urban areas to coastal districts influenced by sandstorms, humidity or salty air. These conditions cause corrosion damage to equipment if not properly suited with the correct filtration system. Standardized filtration solutions sometimes do not take into account all variables, and therefore are not designed to cope with local requirements.

e.FFECT is the solution. A proprietary software that optimizes filter systems and tailors them to specific environmental conditions.

Exemplary particle classification to PM fractions for gas turbines and compressors Exemplary particle classification to PM fractions for gas turbines and compressors

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. The performance of multi-stage filter systems can then be objectively compared. This simplifies the selection of the best filter concept for your needs. The added value for you: intake air filtration that is optimally aligned to performance and functional reliability, reducing downtime and lowering operating costs.


Construction and retrofits of air intake systems with Viledon Engineering

Individually developed, precisely planned

Conversions and construction of new air intake systems with Viledon Engineering

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 new gas turbine and compressor air intake system with the help of our team of technicians.

The engineering portfolio at a glance

The engineering portfolio at a glance

EUROVENT certifications

Fine filter certification
The independent institute EUROVENT Certification has developed an international certification program for fine filters that has recently been 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.

Learn more

EUROVENT Zertifizierung

In our download area, you will find detailed information about our technologies.

Maximizing the efficiency of gas turbines and compressors

Maximizing the efficiency of gas turbines and compressors

Powerful and economic specialist air filtration solutions

Download brochure

Benefit from our specialized expertise in filtration solutions for gas turbines and compressors.

Select and request detailed information.

Customer Information

e.FFECT boosts performance for gas turbines and compressors

Discover our products for gas turbines and compressors.

Click on details for more information. Technical data and specific product features can be found in the e-catalog.

Show products in e-catalog