The Caleffi safety valve is specially designed for boilers, providing reliable protection in central heating systems. It ensures the safe operation of the system by preventing the development of dangerous pressures. When the pressure exceeds the preset limit, the valve automatically opens to relieve the system, reducing risks to both equipment and users.

It is a two-way valve, which means it has two ports – one for the inlet of the medium and one for the outlet. When the inlet port is closed, flow stops, while when it is open, the flow at the outlet is equal to that at the inlet. It is installed at the highest point of the installation without the need for switches or valves, thus ensuring its effective operation.