Corrugated stainless steel piping systems for indoor gas installations
This approval requirement relates to plastic-coated flexible and pliable corrugated stainless-steel pipes and matching tensile resistant fittings for gas installations in residences and buildings for the transport of gaseous fuels of the 1st, 2nd and 3rd family of gasses according to EN 437. The products are provided in the diameter range of DN 10 up to and including DN 50. The maximum admissible operating pressure is 2 bar for DN 10 to DN 25 (Class 2), the maximum admissible operating pressure is 0.5 bar for DN 10 to DN 50 (Class 1). The system is intended for indoor use at operating temperatures ranging from -20 °C to 60 °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. 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.