Capillary solder fittings have been continuously developed and improved for over fifty years to the point where they are, in the hands of the competent, professional installer, utterly reliable.
Copper and copper alloy fittings are available in a similar size range and in a number of configurations. Fittings for use in pipework services are manufactured to the European Standard EN 1254 and include capillary, end feed and integral solder ring, braze fittings and compression fittings.
Capillary soldering of domestic copper pipework has been the accepted method of jointing for many years. Quick, efficient, reliable, the soldered joint can be found in the vast majority of properties in the UK. Every plumber should know the basics when it comes to selection of fluxes and solders.
Fluxes are used to keep copper surfaces clean prior to soldering and to enable the solder to wet and adhere to the copper surfaces.
Probably the most important thing to know about solders is: