You do not have to be a skilled handyman or be equipped as a professional to work on copper pipes. Mechanical connections make it possible to create a seamless network.
Copper remains the most used material in sanitary facilities for hot and cold water supplies, as well as for gas networks.
It has many advantages because it makes possible all types of installation: apparent on collars, engraved or recessed (under plastic sheath ICT type) and buried. The implementation of copper is complicated and requires knowledge of welding.
But today, seamless fittings allow an organized handyman to perform a complete installation.
Hardened copper or annealed
The hardened copper (in rigid bar of 6 m maximum) is used for exposed installations.
It can bend to form angles, but it is better to put connections (soldering or compression) to make changes of direction: the result will be more aesthetic. Annealed copper (malleable crown up to 50 m) is used for recessed installations. It can be bent by hand without any tools and can connect two points far apart without having to put a connection.
Only welding fittings can be used on the annealed copper.
What diameter of pipes?
The pipes are characterized by the outside diameter of the pipe and the thickness of the copper.
For example, 14 x 1 indicates that the tube has an outer diameter of 14 mm and a thickness of 1 mm, an inside diameter of 12 mm.
In order to supply sanitary equipment, a minimum internal pipe diameter must be respected (see diagram), but larger diameter pipes may be used on some appliances (shower Ø 14, bath Ø 16).
Plumbing: what tube diameter for which use?
The diagram shows the minimum inside diameter of the pipes (in mm) to provide for your plumbing installation to work properly.