Production of MARK ECO equipment


Alchrom Thies is a German company that specializes in the manufacturing of custom-made equipment for various industries. They work closely with MARK ECO Trade to produce tailored solutions that meet specific requirements and are designed to exceed customer expectations. Alchrom Thies prides itself on its expertise in welding and pressure vessel production, ensuring that each piece of equipment is made to the highest quality standards. Additionally, Alchrom Thiess manufactures this equipment as a contractor for MARK ECO Trade, providing a reliable source of high-quality equipment for our business needs. In addition, Alchrom Thies is ISO and TÜV certified, ensuring that their equipment meets the highest international quality standards.


The MARK ECO equipment for limescale removal is designed and produced according to strict production standards, ensuring quality and reliability. The manufacturing process is certified according to

EN ISO 3834-2:2005,

EN ISO 9001:2015,

TÜV 2014/68/EU,

and international standards for quality management systems and welding quality requirements.

The MARK ECO equipment can comply with relevant industry standards, as agreed with customers, such as

EN 13445,

AD 2000, and

ASME, to ensure safety, performance, and environmental responsibility.


To maintain the highest quality standards, only high-quality materials and components are used in the MARK ECO equipment, and each unit undergoes rigorous testing and quality control procedures before shipping to customers.

  • 100% visual inspection of welds inside and outside,
  • 100% visual control of the surface of the basic materials,
  • 100% endoscopic control of the inside areas of the equipment.

By adhering to strict production standards, the MARK ECO equipment meets or exceeds the expectations of customers for performance, safety, and sustainability.

Each MARK ECO equipment is submitted to a pressure test Pt=1.5 x Pmax with a duration of 30 minutes. 

A computational fluid dynamics analysis of the MARK ECO equipment is performed for the specific application of the described volumetric flow rate. The computational method used is the Finite volume method.