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  • Certified Management Systems

    • Management Systems

      AD 2000 HP 0, D, EN ISO 3834-2, ISO 9001, and Umstempelvereinb.

    • Certificate Holder

      Franz Dürholdt GmbH & Co KG

    • Test Mark Number


    The certificate holder's Management System corresponds to standard ISO 9001:2015.

    Certificate scopes

    • AD 2000 HP 0

      General principles of design, manufacture and associated tests

    • D

      Manufacturing and sales of industrial shut-off- and control-valves

    • EN ISO 3834-2

      Quality requirements for fusion welding of metallic materials – Comprehensive quality requirements

    • ISO 9001

      Manufacture and distribution of shut-off and control valves for industry, as well as occupational safety and environmental protection products

    • Umstempelvereinb.

      System zur Übertragung der Kennzeichnung von Werkstoffen

    Certificates for these Management Systems

    Contact to the certificate holder

    Franz Dürholdt GmbH & Co KG

    Regentenstr. 69
    42389 Wuppertal