Gas installation

Multilayer piping systems for outdoor gas installation

This approval requirement specify the requirements for multilayer piping systems for outside buildings intended to be used for gas supply of gaseous fuels of the 2nd and 3rd family according to NEN-EN 437.
Maximum operating pressure 500 mbar.
Operating temperature -20 °C up to 40 °C

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For who?

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.