• Heavy cast-iron construction Provides complete, continuous purging and venting of air Efficient separation of air Tapping's on each side

This 1 in cast-iron air separator is used in commercial and residential, hydronic heating applications to separate air from water in the piping system. It consists of a heavy, cast-iron body construction with a 1/2 in female threaded connection for an expansion tank and a 1/8 in female threaded connection for a float vent. It provides continuous purging and venting of air-in the system when installed with WATTS® model ET expansion tank and model FV4 float vent. The maximum pressure is 125 psi.