Diesel Filtration

High‑efficiency systems to ensure clean diesel fuel, protect engines and equipment, and improve operational reliability.
Applications include mining, power generation, fuel storage & distribution, and fuel transfer.


We provide:

  • Filter Elements
  • Filter Housings
  • Sensors & Monitoring Systems

Industrial Fluids

Filtration solutions for hydraulic oils, lubricants, process fluids, and turbine oils—designed for long service life and reduced maintenance.

 


We provide:

  • Elements
  • Housings
  • Sensors & Monitoring Systems 

Air & Gas Filtration

Engineered solutions for air intake, gas filtration and coalescing applications across manufacturing, chemical processing, petrochemical, pharma, glass production and more.

We provide:

  • Elements
  • Housings
  • Sensors
  • Air Intake Systems (NAFCO®) 

Brands within sefiso | Industrial

Our division includes globally trusted product brands, each specialized in their field:

  • FAUDI Diesel – Diesel fuel filtration systems for heavy‑duty environments
  • REFILCO® – Filter elements for hydraulic, gearbox and turbine oils
  • NAFCO® – Air & gas intake systems
  • MicroStream™
  • CRYSTAL‑LINE™ – High‑performance coalescing and separation solutions

All brands follow one unified promise:
One name. One promise. One brand — sefiso. 

Why sefiso | Industrial?

Engineering expertise since 1938
With a long history in filtration technology, sefiso stands for innovation, quality and safety across all business units.

Global network, local capabilities
Production in Germany and the USA, supported by an international service and distribution network.

Tested. Proven. Reliable.
We continuously improve our products through research, application‑oriented development and modern testing methods.

Sensor-driven efficiency
With intelligent monitoring solutions like AFGUARD® and Slugguard™, our customers optimize processes and ensure continuous operational safety.

Custom Solutions

In addition to our core product groups, we support customers with tailor‑made filtration systems, engineered housings, and specialized sensor integrations for unique industrial applications. 

Get in Touch

Whether you need diesel filtration, industrial fluid solutions or engineered air & gas applications — our experts support you worldwide.

Contact us!
Email: contact@sefiso.com