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Stainless steel treatment is our business - Worldwide


Products & Services

Our products and services include:
  • Pickling and Passivation Chemicals Plant & Service.
  • Electropolishing Chemicals and Service.
  • Effluent Treatment Equipment.
  • Pickling Acid Recovery Systems.
  • Automated Dosing Equipment.
  • Modular Tank Cleaning Systems.
  • Hydro Testing Equipment.
  • Pickling and Passivation Acid Analysis.

Duva's automated plant for the pickling passivation of stainless steel tank containers is a system using the latest technology available. The Duva system eliminates the need to have personnel operating in confined spaces with dangerous chemicals. It also ensures that each and every tank is treated in exactly the same way ensuring consistent, high quality results.

Duva's computer controlled plant essentially automates all the tasks associated with the pickling and passivation process. The state of the art, user friendly software programs, control and opening/closure of valves, starting/stopping of pumps, monitor/control pressures and temperatures, ensuring that the correct sequence of events are performed. All key information is logged to provide a detailed audit trail of processes completed to a specific tank. A data communication link via modems is used for remote diagnostics.

Duva believes that their new process for electropolishing tank containers is a breakthrough, which will provide tank container operators with significant benefits with regard to cleanliness, ease of cleaning and corrosion resistance.

Duva is proud of the quality and service excellence reputation that has been gained over the years. Our staff is renowned for going out of their way to provide our customers with unequaled service. We are continually developing new products and services to meet the changing needs of our customer. As our company grows our commitment to innovation, quality and service will never change.