1/2'' Male Connection Automatic Air Vent. Installed at the highest point of any pipe. It purges Air contained into the fluid.
In Solar Water Heating applications, AAV are installed at the solar collector's inlet and/or outlet for air purging. Air (if present inside solar collector) will decrease significantly the thermal efficiency of any solar collector.
Maximum Operating Temperature = 180⁰C, Maximum Operating Pressure = 10 Bar.