Patent ID: 7344088

Claim:
A dual-function valve with pressure adjustment and temperature control functions comprising: a valve body having a first cool water inlet, a first hot water inlet, two first mixing water outlets, a first chamber and a second chamber; the first chamber and second chamber being communicated by a second cool water channel and a second hot water channel; the second chamber being communicated to the first mixing water outlets through a water outlet channel; a pressure balance device for adjusting the water pressures of hot water and cool water; the pressure balance device being installed in the first chamber; and a temperature control device installed in the second chamber; the temperature control device adjusting the amount of water flowing into the second chamber by expansion and contraction of the mixing water of hot water and cold water; the temperature control device being connected to the first chamber; and wherein the pressure balance device is formed by an upper cover, a sleeve, and a sliding rod; the upper cover is formed with outer thread which is screwable with the inner thread of the first chamber so that the pressure balance device is firmly secured to the first chamber; the sleeve is a hollow tube; a top thereof is combined to the upper cover; an exterior of the sleeve is installed with four annular trenches for installing a water stop washer; the walls between the annular trenches are installed with a plurality of through holes so that water can flow through the through holes; the sliding rod is installed in the sleeve; by water pressure, the sliding rod is slidable within the sleeve to adjust the pressures of the hot water and cool water to be in a balance condition; a middle and two ends of the sliding rod are installed with water stop flanges for controlling the water flow in the sleeve.