Röhsler & Co

Because the DDT process is much more effective than steam decoking, chemical cleaning or any other mechanical method, the customer experiences all the economic benefits of a longer tube life, lower fuel usage and improved furnace reliability.

DDT´s bi-directional pigg control method allows for the cleaning of furnaces, which incorporate reducers and changing pipe diameter, without having to make any modifications. It allows for localised, aggressive cleaning of the most contaminated section of the furnace, maximising the cleaning performance.

The technology used will fully restore the heaters, improving reliability and capacity, as well as maximising profitability. Our dedicated employees will safely, effectively and efficiently fulfil your cleaning needs.

Chemical treatment, also known as pickling

It is important to correctly treat the metals used in materials. We offer services in treating:

Austenitic steel:

• The corrosion resistance of stainless steel is due to the formation of a very thin passive chromium oxide layer, which forms only on pure metallic stainless steel surfaces.
• Scale layers, welding and discoloration, abrasion, machining and affect the formation of a closed passive layer.
• Only properly pickled stainless-steel surfaces and welding seams guarantee the full corrosion resistance of the material and maintain its metallic appearance.

Ferritic steel:

• Prior to the initial use or after modification, of steam pipe systems on turbines and gas lines, the chemical pickling and passivation of the system components is recommended by the VGB Group.
• Only professionally stained tubes guarantee a smooth and efficient operation of the system and its individual components.

Asbestos abatement

We have been successfully carrying out asbestos abatement since 1992. It is done under strict conditions, according to legal requirements and under the watchful eye of external experts. The process is adapted to the conditions on site, so that revisions are possible during operation if necessary. We meet customers’ needs through our flexibility and know-how.

We have a certificate in accordance to the Waste Management Act (AWG) for the collection and treatment of asbestos waste, the key numbers are 31 412 (asbestos cement), 31 413 (asbestos cement dust), 31 437 (asbestos waste and asbestos dust). Our experienced staff are fully qualified staff and regularly medically examined in accordance with the law. In addition, our company owns certifications in Quality Management System ISO 9001, safety management systems SCC and environmental management.

Safety and quality management

For us, safety has always had top priority with all our jobs. Our traditionally high standards are certified under the safety certificate for contractors (SCC) systems. In order to achieve transparency for our high quality requirements, we have implemented a quality management system according to ISO 9001. Further improvements are ensured thanks to regular staff training.