Valve for water heater
The valve is a component necessary for the proper operation of the water heater. This prevents the hot water to come back in the circuit of the cold and then, makes this one-way circuit. It is incorporated in the same body a safety valve, which in the event that the water heater reaches high pressures (due to overheating, or to the single hydrostatic pressure), is able to expel water and avoid much more serious damage.