Energy-efficient electronic glandless circulator pump for domestic hot water systems. Model EVOSTA 2 SAN are designed with double electrical insulation, so a protective ground wire is not needed. The pump is equipped with an anti-jamming permanent magnet synchronous motor, requiring only one sealing ring between the motor and the pump casing. Impeller mounted on a ball bearing pin, easy to clean or replace. Safe installation, thanks to double electrical insulation and protection against dry running. Quick and easy installation due to compact design.