Corrugated metal hoses
This approval requirement applies to corrugated metal hoses suitable for the connection of domestic movable or fixed appliances inside buildings according to NPR 3378-11. The corrugated safety metal hose assemblies shall be used for 1st, 2nd and 3rd family gasses according to EN 437, with a maximum operating pressure up to and including 0,5 bar.
Receive a quote tailored to your needs
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. You'll find the most important steps on the right. For more information you can contact our certification engineers.
Initial product assessment
The assessment to determine if all requirements in the approval requirement are met.
The result
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.