Automatic Air Vent 1/2" BSPT

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Automatic Air Vent (AAV) 1/2'' BSPT Male Connection Automatic Air Vent. Installed at the highest point of any pipe. It purges Air contained into the fluid. In Solar Water Heating a pplications, 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 Show more