The Thermotriaxe R806 thermostatic valve is an excellent choice for protecting your boiler. This valve is specifically designed for installation in central heating systems, ensuring it remains safe from excess pressure. Its primary function is to open when the pressure exceeds a preset value, relieving the system and preventing dangerous situations for your health and materials. The valve is double-ported, featuring two ports: one for the medium's inlet and one for the outlet. This means the flow of the medium is effectively controlled, as when the inlet is closed, the flow is interrupted and when it is open, the flow is equal on both sides. Additionally, positioning it at the highest point of the installation contributes to its optimal operation.