Threaded pipes

Metal fittings for the connection of metal pipes

This approval requirement describes the requirements with regard to fittings for gas pipes with a maximum connection size of DN 400 mm, which are applied for connecting pipes with a maximum operating pressure of 8 bar at -20 to +60 °C. Used pipes can be:
• Steel pipes according to AR 15
• Copper pipes according to AR 5
• Steel pipes with external PE layer according to AR 50

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Manufacturers, grid companies, representatives, retailers, constructors and in installers

Process steps

An approved quotation is the beginning of a tested and an approved product. The most important steps are:

- Initial product assessment: the assessment to determine if all requirements in the approval requirement are met. 

- The result is a certificate upon which is mentioned to which requirements the product complies.

- Product verification: the assessment performed after granting certification to determine that the certified products still comply with the requirements in the approval requirement. 

- Control on quality system requirements: control on following the IQC scheme (as described in the approval requirement) and the procedures.

For more information you can contact our certification engineers. 

Additional information