The Watts company's safety valve is specially designed for use in boilers, offering reliable protection against excessive pressure in the central heating system. Its role is vital for the safety of the installation, as it ensures that when the pressure exceeds the preset values, the system decompresses immediately. It is installed at the highest point of the installation, without the need for switches or taps, ensuring uninterrupted operation.

The check valve features two ports—one for the inlet and one for the outlet of the medium. This means that when the inlet is closed, the flow is interrupted, while when it is open, the flow at the inlet and outlet is the same, thus providing efficient and safe operation of the device.