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Drinking & Waste Water Technology
Plastics for Drinking & Waste Water Technology

Plastics for safe water treatment

Fresh, clean water is a precious commodity. The efficient sourcing and treatment of water is vital for our quality of life. Sodium hypochlorite, chlorine and ozone are among the aggressive chemicals used for treatment. Installations must be able to withstand these influences for the long term. We offer plastics that are designed specifically for these requirements: they have a high resistance to chemicals, have the necessary purity for contact with drinking water and are easy to process. You can use them to design safe and long-lasting installations. We offer a complete system comprising of sheets, U and hollow profiles, welding rods and the RITA tank construction programme.

Your advantages

  • High operational reliability thanks to very high resistance to chemicals
  • Long service life because of high resistance to wear and tear
  • Lightweight for easy installation
  • Compliance with standard guidelines: KTW requirements, EU Directive 10/2011, FDA, RoHS
  • Suitable for outdoor use thanks to high UV resistance
  • Very easy to weld and process

Typical areas of application

  • Chemical water treatment
  • Purification systems
  • Mini purification systems
  • Drinking water tanks
  • Wastewater treatment
  • Fountains, fountain linings
  • Sea water desalination plants
  • Industrial (cooling) water treatment plants

Application examples

Industrial tanks for water treatment

Tanks made of Polystone® G black HD (PE-HD) for industrial water treatment withstand the aggressive chemicals used in the process, thereby enhancing the reliability and safety of the process.

Lining of a storage tank for drinking water

With a colour close to RAL 5015, our Polystone® G blue HD (PE-HD) material is particularly suitable for applications in the drinking water sector. The material meets the physical, chemical requirements of  the "KTW- Bewertungsgrundlage" and is suitable for contact with drinking water and meets the requirements of EU Directive 10/2011.

Side walls of a purification plant

Side walls made of Polystone® M (PE-UHMW) for a purification plant have a long life thanks to their high resistance to wear and outstanding slide friction properties. The material meets the physical, chemical requirements of the "KTW- Bewertungsgrundlage" and meets the requirements of EU Directive 10/2011 for contact with food.

Lifting screws for sewage treatment plants made of Robalon®

Our highly wear-resistant lifting screws made of Robalon® for sewage treatment plants. are corrosion-free, have a high resistance to acids and alkalis and, depending on the water level, up to 50% higher efficiency than conventional steel lifting screws. The lower weight of Robalon® additionally increases the efficiency. Thus, our Robalo® lifting screws increase the efficient and reliable operation of sewage treatment plants.

Sprockets made of Lamigamid® 312 for rectangular raking tanks

Our highly wear-resistant sprockets made of Lamigamid® 312 (PA 6G) are an important part of the raking system in rectangular sedimentation tanks of sewage treatment plants. These innovativesprockets are wear-resistant and easy to install. They are corrosion-free, highly resistant to acids and lyes and are suitable for all standard chain types. The lighter weight and clever design of our Lamigamid® 312 sprockets facilitate  installation. The high wear resistance significantly increases the service life. Our sprockets made of Lamigamid® 312 increase the efficient and reliable operation of sewage treatment plants.

Agitator paddle for aeration tanks made of Lamigamid®

Effective purification and aeration of waste water requires a well-defined and safe admixture of oxygen. Our agitator paddles made of Lamigamid® are integrally cast from impact-resistant and wear-resistant PA types. Customer-specific hubs can be included in the casting to ensure the smooth transmission of power. The complex geometries required for optimal mixing can also be cast directly to a large extent - no laborious reworking required.

Related Products

Arrange technical advice

The performance and service life of materials used for water treatment are influenced by a variety of factors. These factors must be taken into account in order to select the right materials. Examples:

We are happy to advise you on the selection of suitable materials for your particular application. Just use our contact form at the bottom of the page and write to us.

Our complete range for containers and plant engineering 

We offer a complete range of plate material, plastic filler wires, hollow sections and U-sections plus our RITA container computation software for the production of containers and systems. Sheets, filler wires, hollow sections and U-sections are made from the same moulding compound. This results in identical material properties and the best processability of the entire container. 


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Plastics for technical Applications