Our Quality is your Safety

Industrial Valves perform key functions in plants and pipelines and therefore have a considerable influence on customers‘ own processes: accuracy of control, reliability and safety are paramount.

Quality control at Mankenberg is thus acentral theme which runs through all aspects of the production process. At Mankenberg, quality control is a separate team whose members are directly answerable to the Managing Director. Everything that leaves our production halls has to be checked by the experienced hands of our quality control team.

But if we are honest, even these high standards are not enough to satisfy us when it comes to quality. All our suppliers are DIN EN 9001 certified and are subject to a strict evaluation system. It is included in the closed loop improvement process that we set up ourselves. When it comes to supplier relationships, feedback functions in both directions. This enables us to increase the degree of mutual transparencyand confidence.

Approvals and Certifications

Inspection Certificates and Material Certificates

  • EN 10204/2.1
  • EN 10204/3.1
  • EN 10204/3.2

Acceptances

  • German Technical Monitoring Association (TÜV)
  • Lloyds Register of Shipping (LRS)
  • Bureau Veritas (BV)
  • DNV•GL
  • Registro Italiano Navale (RINA)
  • American Bureau of Shipping (ABS)

Qualified Welders

  • AD2000-HP3
  • DIN EN 287-1
  • DIN EN 1418
  • DIN EN 9606-1
  • DIN EN 9606-5

Welding Procedure Tests

  • AD2000-HP2/1
  • DIN EN ISO 15614-1
  • DIN EN ISO 15614-5 
  • Others on request

On Request

  • Norsok (Norsk Sokkels Konkuranseposisjon)
  • NACE (National Association of Corrosion Engineers)
  • ANSI (American National Standards Institute)
  • ASME (American Society of Mechanical Engineers)
  • API (American Petroleum Institute)
  • JIS (Japan Industrial Standard) 
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