Mül­ler GmbH & Co. KG


In our industry as a manufacturer of industrial plants and their components, the faith that our customers place in us is an asset we greatly appreciate.

With our highly qualified staff, we meet our high quality standards and continue to improve our quality with continuous processes. Our manufacturing processes are subject to constant quality assurance, which enables us to comply with the necessary quality standards and to perform the following quality assurance testing procedures with external companies:

 Dye pen­e­trant test­ing

 X-ray test­ing

 Ul­tra­sonic test­ing

 Pressure and strength testing

 Leak testing

Certifications and quality certificates

 Manufacturer in compliance with AD 2000-Merkblatt HP0 since 1988

 Welding certification according to DIN EN ISO 3834-3 / HP 100R / TRD 201

 Welding approval for the manufacture of pressure device in accordance with the Pressure Equipment Directive 97/23/EC

 Welding coordination according to EN ISO 14731 by own welding engineer (IWE)

 Certified specialist in accordance with WHG (German Federal Water Act)

 TÜV Re-canceling certificate

 Certified welders in acc. with EN 287-1

Preparation of project-related quality and technical documentation in line with customer requirements (drawings, bills of materials, layout plans, welding instructions, procedure qualifications, material certificates, test protocols, declarations of conformity, instructions manuals, certificates, etc.).

Close and ongoing collaboration with inspection and certification institutes, such as TÜV, Dekra, Bureau Veritas, Lloyds Register.


Our company is specialized in the processing of stainless steel and carbon steel. A small selection of materials that we have worked with:

 Stainless steel (SS 304, 304L, 316, 316L, 316Ti, 321)

 Duplex steel (UNS 31803, UNS 32304, UNS 32101)