Biasi automatic air valve BI1212107

This Biasi automatic air valve is a pressure safety device suitable for use in Biasi Activ A, Activ A Plus, Advance, Advance Plus, Garda, Garda HE and Garda HE Plus boilers. It also offers compatibility with Inovia, Parva, Riva Advance, Riva Compact, Riva Compact HE, Riva Plus and Riva Plus HE appliances. The automatic air valve works by releasing built up air. As water flows through the system, a float opens or closes the vent depending on the water level.