The safety valve from Watts is ideal for use in boilers and plays a critical role in the safety of the central heating system. Thanks to its function, it protects the system from excessive pressure by opening when the pressure exceeds a predetermined value, allowing the system to depressurize and preventing serious risks to people and materials. This two-way valve features two ports, one for the inlet and one for the outlet. When the inlet is closed, the flow is interrupted. Conversely, when the inlet is open, the flow at the outlet equals that at the inlet. It is installed at the highest point of the system, ensuring proper operation without the need for a switch or valve.