APE intelligent frequency conversion circulation pump (hereinafter called as “electronic pump”). The stator of the motor is completely shielded, and the rotating parts are immersed in clean water, playing an important role in cooling and lubricating during working.

The shielding sleeve of the electric pump adopts a thin-wall structure to completely shield the internal stator of the motor from water, the traditional mechanical seal structure is eliminated and the leakage problem of the conventional water pump is solved.

The rotating parts are made of ceramic bearings and ceramic rotating shafts, which are wear-resisting and lubricated with clean water, can cold down the motor, and reduce the noise. The pump will not overload during full head running. It can be generally free from maintenance as long as used correctly.