Water supply valve cartridge

A water supply valve cartridge, comprising:

• first and second rotary disks (130 and 150) that are rotated by operation of a temperature control unit (170) and a flow rate control unit (160), thus opening or closing hot and cold water inlet holes (121 and 122) formed in a first fixed disk (120) and a water passage hole (141) formed in a second fixed disk (140) and a plurality of water discharge holes comprising a water discharge hole (123) formed through the first fixed disk (120), a water discharge hole (132) of the first rotary disk (130), and a pair of water discharge holes (142) formed in the second fixed disk (140), wherein the second fixed disk (140) among the fixed disks (120 and 140) of the valve cartridge (100), which has the water passage hole (141) to introduce inlet cold water, inlet hot water or a mix of the cold and hot water, is provided with the pair of water discharge holes (142), which are symmetrically formed through a center of the second fixed disk at a position spaced apart from the water passage hole (141) by a predetermined gap, are opened or closed by the second rotary disk (150) and controllably discharge the cold water, the hot water or the mix of the cold and hot water, and the second rotary disk (150) among the rotary disks (130 and 150), which controls the amount of inlet cold water and inlet hot water and discharges the water by operation of the flow rate control unit (160), has a diameter to cover only the area around the water discharge holes (142) of the second fixed disk (140), with a pair of flow rate control grooves (151) formed on both sides of an end surface of the second rotary disk (150) to open only the water discharge holes (142) during rotation of the second rotary disk (150).