The company OTT GmbH is your partner for oxygenation of water and waste water. The highly-developed and extremely economic OTT aeration systems are used in wastewater treatment plants (WWTPs) of the following applications: Industrial waste water processing. Community sewage processing. Water aeration. Aeration systems / Oxygenation of water and waste water.

About Us

OTT System is represented internationally with local branches and established sales partners. Our customers have their own local contacts and suppliers – worldwide:

  • Long-standing involvement in the emerging markets in the Far East and Eastern Europe
  • Local branches in North America and Poland
  • Optimum customer proximity
  • Flexible logistics

Our leading position is by design. For over twenty years OTT has been working successfully in the field of wastewater aeration. Our intention was and is to produce the best performing andmost efficient and reliable diffuser and aeration systems possible.

Our holistic company philosophy is: Everything fromone source. At OTT, the Development, Production, Quality Control and Project Management departments are concentrated in one location. Over twenty years of experiencemanufacturingmembrane diffusers in the most up-to-date production facilities plusmeticulous quality checksmake OTT a highly performing, reliable partner – as good as it gets. At its own stainless steel processing plant, OTT produces perfectly tailored pipework and aeration systems.Where itmakes sense, we also work with domestic stainless steel fabricators in countries all around the world. This ensures that OTT aeration systems are operated with the greatest reliability for bothmunicipal wastewater treatment and themost demanding areas of application such as the chemicals industry.

We’re somewhat old-fashioned at OTT: “Traditionally the latest technology.” Continuous research and development together with changes inspired by customer feedback havemade OTT the industry’s technology leader. Close collaboration with universities and leading research institutes – in particular in the field ofmembranematerials – gives us the benefit of valuable synergistic effects. This scientific dialogue has built our long -termposition asmarket leader. External, independent test laboratories repeatedly provide renewed confirmation of the outstanding performance of OTT aeration systems.


FLEXNORM - Specialty-Grade EPDM Membranes

OTT FLEXNORM membranes are used in clarification plants which process domestic wastewater without appreciable industrial contaminants. If the wastewater to be treated contains substantial levels of industrial pollutants, OTT FLEXSIL silicone-based membranes are usually the preferred solution. We will be happy to provide information and technical support in selection of the most cost-efficient membrane material for your specific project.

Model MAGNUM T - Diffusers

MAGNUM T fine bubble tube diffuser with integrated 1' stainless-steel threading, Can be connected directly to dedicated downpipe, Ideal for grit removal tanks, compact treatment plants and similar applications, Can be equipped with high-performance membranes, FLEXNORM (EPDM) or FLEXSIL (silicone), Effective diffuser lengths: 1000mm, 1500mm and 2000mm


ECWATECH 2010 - The International Trade Fair and Congress, IE Expo 2013 - International Trade Fair for Water, Sewage, Refuse, Recycling and Energy, TerraTec - International Trade Fair for Environmental Technologies 2013

Company details

Business Type:

Industry Type:
Water and Wastewater

Market Focus:
Globally (various continents)

Office Locations:


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