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Franke-Filter GmbH

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About Us

Established in 1989 by Manfred Franke, FRANKE-Filter is a leading German industrial company with more than 30 years of experience in the design, development and manufacturing of high-quality oil mist separators that are individually tailored for each application. We are serving almost all the lead manufacturers of rotating equipment. Located in Bad Salzdetfurth, Lower Saxony, the company has numerous partners and supplies customers around the world.

Oil mist separators for the power industry
Along with oil mist separators for steam and gas turbines, FRANKE-Filter supplies customised solutions for hydro turbines. The company portfolio also includes filtration solutions for gas and diesel motors, turbo-compressors, generators, engines, and gearboxes, as well as demisters for welding fumes.

Oil mist eliminators for hydropower plants
Individually adjusting the vacuums at each bearing allows oil mist to be locally extracted from hydro turbines. FRANKE-Filter’s oil mist separators supply filtration at up to four bearings, including turbine, guide bearing and generator.

The system developed by FRANKE-Filter for multiple simultaneous extractions suits the limited available space of many hydropower plants and minimises investment costs.

FRANKE-Filter supplies oil mist separators tailored to local conditions for hydro turbines from all kinds of hydro power plants: Francis turbines, Pelton turbines, Kaplan turbines.

Products & Services

Oil mist separators for hydro turbines

Filtration at up to four bearings with one centrally installed oil mist separator. Simply adjust the vacuum for all bearings individually so that the oil mist can be extracted locally. To meet the little space available in hydropower plants and to minimize investment costs, we have developed a system for multiple extraction.

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Oil mist separators for gas turbines

The lubricant circuit of a gas turbine is a sensitive structure that must be protected from environmental influences. Our oil mist separators are reliably filtering moisture and dirt particles out of the lubricants with a filtration efficiency of 99.99% at 0.1 µm. Since all additives are retained, the filtered oil can subsequently be added back to the circuit.

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Oil mist separators for steam turbines

Oil mist eliminators for steam turbines are designed to prevent the leakage of oil mists. By suctioning and filtering moisture and contamination particles from your lube oil system, oil mist eliminators ensure a smooth operation of your turbine. Plus, the filtered oil is eventually re-added to your lube oil cycle.

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Oil mist separators for gas and diesel engines

Maintain a constant vacuum in the crankshaft housing. They are equipped with a frequency converter to compensate fluctuations. The pressure transducer records pressure and transmits it to the side channel vacuum pump. By alteration of the rotation speed the vacuum and suction volume continuously adjust themselves.

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Oil mist separators for compressors and vacuum pumps

One of the challenges at compressors is the reliable filtration of oil mist. Due to the high pressure impact the lube oil is likely to escape at several spots. The ecological solution to this problem is a highly efficient oil mist eliminator. Our filter offers the individual adjustment of the vacuum in the lube oil system of your compressor or vacuum pump. Precise adjustment prevents the lube oil droplets from escaping and further possible leakages are eliminated.

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Emulsion mist separators for metalworking

They are important to protect the employees, the hall and the cooling lubricant itself. At FRANKE-Filter you will not only find oil mist separators for rotary equipment, we also manufacture highly efficient emulsion mist separators. These are used for CNC processing machines as well as for turning, drilling, milling, and grinding.

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All Product/Service Areas:
  • Compressors
  • Pump-turbines
  • Switchgear
  • Turbines - refurbishment specialist



FRANKE-Filter Germany

Germany, Austria, Switzerland, Czech Republic, Hungary, Slovenia, Slovakia

Axel Wedekin

Wiedhof 9, 
31162 Bad Salzdetfurth

FRANKE-Filter Great Britain

Kieron Moore

24 Albany Mews, 
Montagu Avenue, 
, Newcastle upon Tyne, NE3 4JW, 
United Kingdom

FRANKE-Filter Worldwide

Benelux, France, Africa, Middle East, Asia, Canada, USA, Australia, Bulgaria, Serbia, Croatia, Greece, Turkey

Abdelhakim Taoufik

FRANKE-Filter Worldwide

Poland, Scandinavia, Spain, Portugal, South America, Iceland

Dr. Francisco Colunga
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