Plastic pipes

Self-closing gas valves

This approval requirement applies to self-closing gas valves to be mounted in high-impact polyvinylchloride (PVC-HI) tapping saddles for gasless tapping high-impact polyvinylchloride (PVC-HI) distribution lines and gasless installing of inflatable pipe plugs. The self-closing gas valves are for use in gas installations for 2nd and 3rd family gases according to NEN-EN 437 for gas pressures up to and including 200 mbar. 

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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.

Additional information