Float Valves Float Valves Type ATHENA (NV 15e) | Mankenberg Float Valves Type ATHENA (NV 15e) | Mankenberg Valve for drinking water and high to very high flow rates The float valve ATHENA (NV 15e) is a straight-way or angle-type single-seat feed valve with relieved cone, the cone is fitted with a soft seal. The valves are approved for the use with potable water thanks to the coating of the body in accordance with the KTW guidelines. The valves are equipped... View Flanged PN 16 DIN Cast Iron