Product Information: The pressure relief valve helps to stop pressure build up within a closed system. It is set to open as the pressure increases to ensure the pressure within the system doesn't reach a dangerous level.
This part is present in 20 different boilers in the Heatline range including the Heatline VIZO 24 , CAPRIZ 25 , CAPRIZ 28 , CAPRIZ 25S , CAPRIZ 28S .