Pressure Controlled Water Valves are balancing the temperature of mixed water. It eliminates a cylinder enclosing the pressure control piston and multiple seal rings, to reduce the number of parts and to minimize the productions. The structure of the piston within cylinder to enhance productivity of the valve. It comprises of additional backflow cutoff valves in each of hot and cold water outlet to prevent back flows of water. The initial control of water pressure is easy by this device because the piston is always placed in the center of the cylinder while water doesn't flow.