... New Technology 1. Features :•Driven by PM, brushless DC motor•Minimum maintenance, long life &without watching•Powered by PV/ ... oil•Adopt double plastic package for rotor and stator,motor insulation ≥300MΩ,the motor security was much improved.•Stainless steel 304 shaft ... 25% by the permanent magnetism,direct current,brushless,non-sensor motor 2. Applications :•Drinking water in daily life .•Farmland and ...