... .1--70m Solar Water Pump System (SS316 & SS304 Material ) 2013 New Solar Pump--------SS316 Solar Pump / Solar Water pump **Operating principle ... ,brushless,non-sensor motor.2. Adopt double plastic package for rotor and stator,motor insulation ≥300MΩ,the motor security ... -sensor motor.2. Technique innovation : Adopt double plastic package for rotor and stator, motor insulation ≥300MΩ, the motor security ...