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6. Protective materials
6.1 Manufacturing processes
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Galvanizing
Obtained by immersion in a bath of molten zinc or by electrolysis, galvanizing is used to protect steel pipes used to transport drinking water. This means that brazing must be used to weld these pipes.
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Chrome
Highly resistant to corrosion and offering a good-quality finish, it is used by electrolysis or case-hardening processes in the manufacture of most valves and fittings.
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Enamel
Generally composed of silica sand, potash, soda and coloring metal oxides, it is the most common coating used on sanitaryware. It is produced during...
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Protective materials
Standards and norms
- Gas infrastructures – Welding steel pipes – Functional specifications - NF EN 12732 + A1 - 06-14
- Gas infrastructures – Pipelines for maximum operating pressure up to 16 bar – Part 1: General functional requirements – Gas supply systems - NF EN 12007-1 - 09-12
- Gas infrastructures – Pipelines for maximum operating pressure up to 16 bar – Part 2: Specific functional requirements for polyethylene (MOP up to...
Regulations
Water Act of January 3, 1992
Articles L 640 and L 641 of the Civil Code on the general status of rainwater
Arrêté du 4 août 2006 portant règlement de la sécurité des canalisations de transport de gaz combustibles, d'hydrocarbures liquides ou liquéfiés et de produits chimiques (Decree of August 4, 2006 regulating the safety of pipelines transporting combustible gases, liquid...
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