A mixing valve is a self-contained unit whose base includes the hot and cold water connections, as well as the fixing system. When purchasing, check that the connection hoses are supplied. They make it possible to connect the tap to the water inlet pipes.
The hoses being flexible, they tolerate a certain offset during assembly. As they are screwed, there is no welding to achieve: a simple adjustable wrench or pliers manifold is sufficient to proceed with the assembly. Be careful not to scratch the faucet body.
Screw the hoses onto the faucet
One end of the connecting hoses is smaller than the other: this is the one that must be screwed on the tap. A little grease facilitates screwing. Tighten but do not force.
Screw the threaded rods
Depending on the valve model, the fastening system has one or two threaded rods. Like the hoses, they are screwed on the tap, first by hand and then with the key (give a half-turn).
Equip water inlets with screw fittings
Water inlets must be equipped with screw connections compatible with the hoses used. The connections can be supplemented with quarter-turn shut-off valves.