Window and door solutions for Waste Disposal and Treatment Plants
We produce pressure-tight sight glasses and inspection doors for waste water, purification and treatment plants. These are also available with windscreen wipers and covers. Our products can be tailored according to particular requirements. The components we produce, primarily heavy and light metal castings, are pressure tight to approximately 0.3 bar. For our seals/gaskets we employ high quality Neoprene- , Viton and Silicone seals.

  • Sight glasses and inspection doors
  • Inspection glass for sewage treatment plants, openable, with windscreen wipers, withcovers
  • Visual inspection windows and glass doors for purification and filter plants
  • Inspection windows for pellets plants




Freedom to Design…

October 2009 | After months of planning, concept developing and realisation: Our new Flushline Sliding Door is now ready for the market. On www.freedom-to-design.de you get an insight
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Fehrmann at SMM

August 2010 | From September 7th to September 10th, shipbuilding industry is meeting again at SMM in Hamburg. We invite you to visit our stand in hall 5, stand B5.111. SMM has been long established as the most important international forum for the branch and the Side Trade Show for shipbuilding industry.
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