Water mixer valve with separate controls for the delivery of two types of water

A cartridge type body water mixer valve which has a bottom, is closed at the top by a lid and has valvular means made up of overlapping disks in ceramic or other material fitted inside said body and having water inlet and outlet holes, characterized in that it comprises a fixed disk (13) on the bottom of the cartridge type body which has two pairs of holes (18, 19;

• 20, 21), where a hole of a first pair is for the inlet of hot water coming from a connected water delivery conduit and the other hole (18, 19) is for the outlet of hot water towards a tap, and where a hole (20, 21) of a second pair is for the inlet of cold water coming from a connected delivery conduit and the other hole (20, 21) is for the outlet of cold water towards said tap, the hot and cold water when drawn together being mixed downstream from the valve in said tap;
• a first movable disk (14), resting on and movable on the fixed disk (13) having a connected chamber (24) positionable in partial or total correspondence to the first pair of holes (18, 19) so as to connect or prevent the connection of them to each other following the movements of said first disk;
• a second movable disk (15), resting and movable on the fixed disk (13) having a connecting chamber (25) positionable in partial or total correspondence to the second pair of holes (20, 21) so as to either connect or prevent the connection of them to each other following the movements of said second disk;
• and means to independently and separately actuate said movable disks (14, 15) on the fixed one.